Advanced Data Sheet: VetaÒ iHA48060A012V*, 1.2V/60A Output Half Brick
Advanced Datasheet DC-DC Power Modules
VetaÒ iHA48060A012V* Half Brick Series
48V Input, 1.2V/60A Output
TDK Innoveta Inc.
3320 Matrix Drive, Suite 100
Richardson, Texas 75082
Information furnished by TDK Innoveta is believed to be accurate and reliable. However, TDK
Innoveta assumes no responsibility for its use, nor for any infringement of patents or other rights of
Phone (877) 498-0099 Toll Free
third parties, which may result from its use. No license is granted by implication or otherwise under
(469) 916-4747
any patent or patent rights of TDK Innoveta. TDK Innoveta components are not designed to be used
Fax
(877) 498-0143 Toll Free
(214) 239-3101
in applications, such as life support systems, wherein failure or malfunction could result in injury or
death. All sales are subject to TDK Innoveta’s Terms and Conditions of Sale, which are available
upon request. Specifications are subject to change without notice. TDK logo is a trademark or
registered trademark of TDK Corporation.
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Advanced Data Sheet: VetaÒ iHA48060A012V*, 1.2V/60A Output Half Brick
Ordering information:
Output
Current/
Power
Main
Output
Voltage
Product
Identifier
Input
Voltage
Output
Units
# of
Outputs
Safety
Class
Package Size
Platform
Feature Set
i
H
A
48
060
A
033
V
-
0
00
00 – Standard
TDK Innoveta
Half Brick
VetaÒ
36-75V
60
Amps
033 – 3.3V
Single
Feature
On/Off
Logic
Omit
pin3
No
Threaded
Inserts
Pin
Output OVP
Output OCP
OTP
Set
00
01
02
03
04
05
06
07
Length
0.145”
0.145”
0.145”
0.145”
0.110”
0.110”
0.110”
0.110”
Positive
Negative
Positive
Negative
Positive
Negative
Positive
Negative
Latching
Latching
Auto-Recovery
Auto-Recovery
Latching
Latching
Auto-Recovery
Auto-Recovery
Auto-Recovery
Auto-Recovery
Auto-Recovery
Auto-Recovery
Auto-Recovery
Auto-Recovery
Auto-Recovery
Auto-Recovery
Auto-Recovery
Auto-Recovery
Auto-Recovery
Auto-Recovery
Auto-Recovery
Auto-Recovery
Auto-Recovery
Auto-Recovery
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
Yes
Yes
No
No
Yes
Yes
OVP: Over Voltage Protection; OCP: Over Current Protection; OTP: Over Temperature Protection.
Product Offering:
Maximum Output
Code
Input Voltage
Output Voltage
Output Current
Efficiency
Power
iHA48060A012V-000
iHA48060A015V-000
iHA48060A018V-000
iHA48060A025V-000
iHA48060A033V-000
iHA48040A033V-000
iHA48060A050V-000
iHA48040A050V-000
iHA48025A120V-000
iHA48013A240V-000
iHA48011A280V-000
iHA48016A280V-000
36V to 75V
36V to 75V
36V to 75V
36V to 75V
36V to 75V
36V to 75V
36V to 75V
36V to 75V
36V to 75V
36V to 75V
36V to 75V
40V to 60V
1.2V
1.5V
60A
60A
60A
60A
60A
40A
60A
40A
25A
12.5A
11A
16A
72W
83%
86%
90W
1.8V
108W
150W
198W
132W
300W
200W
300W
300W
308W
450W
86.5%
89%
2.5V
3.3V
90%
3.3V
90%
5.0V
90%
5.0V
91%
12.0V
24.0V
28.0V
28.0V
91.5%
91%
91%
93.5%
TDK Innoveta Inc
3320 Matrix Drive, Suite 100
Richardson, Texas 75082
Phone (877) 498-0099 Toll Free
(469) 916-4747
Fax
(877) 498-0143 Toll Free
(214) 239-3101
℡ (877) 498-0099
©2007 TDK Innoveta Inc.
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Advanced Data Sheet: VetaÒ iHA48060A012V*, 1.2V/60A Output Half Brick
Mechanical Specification:
Unless otherwise specified tolerances are: x.x ± 0.5 mm [x.xx ± 0.02 in.], x.xx +/- 0.25 mm [x.xxx +/- 0.010 in.]
Recommended Hole Pattern: (top view)
Pin Assignment:
PIN
1
FUNCTION
Vin (+)
PIN
7
FUNCTION
Trim
2
On/Off
8
Sense (+)
Vout (+)
3
Case (Omit – optional)
Vin (-)
9
4
5
Vout (-)
6
Sense (-)
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Advanced Data Sheet: VetaÒ iHA48060A012V*, 1.2V/60A Output Half Brick
Absolute Maximum Ratings:
Stress in excess of Absolute Maximum Ratings may cause permanent damage to the device.
Characteristic
Min
-0.5
---
Max
80
Unit
Notes & Conditions
Continuous Input Voltage
Transient Input Voltage
Isolation Voltage
Vdc
100
1500
Vdc
Vdc
100mSmax.
---
Storage Temperature
-55
125
°C
Maximum base plate temperature. Measured at the
location specified in the thermal m easurement
figure.
Operating Temperature Range (Tc)
-40
115*
°C
Bare component side of metal board shall be
convex.
Flatness
0.006
In.
·
Engineering estimate
Common Input Characteristics:
Unless otherwise specified, specifications apply over all Rated Input Voltage, Resistive Load, and Temperature conditions.
Characteristic
Min
36
---
Typ
48
Max
75
36
---
Unit
Notes & Conditions
Operating Input Voltage
Turn-on Voltage
Vdc
34.6
32.7
1.9
79
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Turn-off Voltage
30
0.5
---
Hysteresis
---
Input High Voltage Turn-off
Input High Voltage Turn-on
Hysteresis
80
---
75
---
77
2
---
Vo = 0 to 0.1*Vo,nom; on/off =on,
Io=Io,max, Tc=25°C
Startup Delay Time from application of input voltage
Startup Delay Time from on/off
---
15
---
mS
Vo = 0 to 0.1*Vo,nom; Vin = Vi,nom,
Io=Io,max,Tc=25°C
---
---
10
---
---
mS
A2s
Inrush Transient
0.06
* Engineering estimate
Electrical Data:
Input Characteristic
Maximum Input Current
Output Voltage Rise Time
Min
---
Typ
---
Max
Unit
Notes & Conditions
2.6*
---
A
Vin = 0 to Vin,max, Io,max, Vo=Vo,nom
Io=Io,max,Tc=25°C, Vo=0.1 to 0.9*Vo,nom
---
20
mS
See input/output ripple measurement figure;
BW = 20 MHz
Input Reflected Ripple
---
---
12
38
---
---
mApp
dB
Input Ripple Rejection
* Engineering estimate
@120Hz
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Advanced Data Sheet: VetaÒ iHA48060A012V*, 1.2V/60A Output Half Brick
Electrical Data (continued):
Operating at Tc = 25°C unless otherwise specified
Output Characteristic
Min
Typ
Max
Unit
Vdc
Vdc
Notes & Conditions
Vin=Vin,nom; Io=Io,max
Output Voltage Initial Setpoint
Output Voltage Tolerance
1.18
1.2
1.22
1.16
--
1.24
Over all rated input voltage, load, and
temperature conditions to end of life
Efficiency
---
---
---
---
0
83
1
---
2*
%
Vin=Vin,nom; Io=Io,max
Vin=Vin,min to Vin,max
Io=Io,min to Io,max
Line Regulation
Load Regulation
Temperature Regulation
Output Current
mV
mV
mV
A
4
6*
10
---
15*
60
Tc=Tc,min to Tc,max
At loads less than 25% of Io,max the module
will continue to regulate the output voltage,
but the output ripple may increase
Output Current Limiting Threshold
61
76
90
A
Vo = 0.9*Vo,nom, Tc<Tc,max
Short Circuit Current
---
---
76
55
---
A
Vo = 0.25V
Output Ripple and Noise Voltage
60
mVpp
Measured across one 47uF, one 1uF and
one 0.1uF ceramic capacitors – see
input/output ripple measurement figure; BW =
20MHz
---
15
18
mVrms
Output Voltage Adjustment Range
Output Voltage Sense Range
50
---
---
---
110
10
%Vo,nom
%Vo,nom
Dynamic Response:
Recovery Time
di/dt = 0.1A/uS, Vin=Vin,nom; load step from
50% to 75% of Io,max
---
---
0.25
35
---
---
mS
mV
Transient Voltage
For applications with large step load changes
and/or high di/dt load changes, please
contact TDK Innoveta for support.
Output Voltage Overshoot during startup
Switching Frequency
---
---
---
50
---
10
0
240
1.5
---
---
---
mV
kHz
V
Io=Io,max
Fixed
Output Over Voltage Protection
External Load Capacitance
Isolation Capacitance
---
All line, load, and temperature conditions
60000**
---
uF
pF
2000
---
All line, load, and temperature conditions
All line, load, and temperature conditions
Isolation Resistance
---
MW
Vref
1.225
V
Required for trim calculation
* Engineering Estimate
** Contact TDK Innoveta for applications that require additional capacitance
Caution: The power modules are not internally fused. An external input line normal blow fuse with a maximum value of 20A is required, see
the Safety Considerations section of the data sheet.
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Advanced Data Sheet: VetaÒ iHA48060A012V*, 1.2V/60A Output Half Brick
Electrical Characteristics:
iHA48060A012V-001 Efficiency
iHA48060A012V-001 Power Dissipation
Ta = 25 Deg C.
Ta = 25 Deg C.
90
85
80
75
70
16
14
12
10
8
6
4
2
6
12
18
24
30
36
42
48
54
60
6
12
18
24
30
36
42
48
54
60
Output Current (A)
Output Current (A)
Vin = 36V
Vin = 48V
Vin = 75V
Vin = 36V
Vin = 48V
Vin = 75V
iHA48060A012V-001 Typical Efficiency vs. Output
Current at Ta=25 degrees.
iHA48060A012V-001 Typical Power Dissipation vs.
Output current at Ta=25 degrees
iHA48060A012V-001 Load Regulation
Ta = 25 Deg C.
1.205
1.2045
1.204
1.2035
1.203
1.2025
1.202
1.2015
6
12
18
24
30
36
42
48
54
60
Output Current (A)
Vin = 36V
Vin = 48V
Vin = 75V
iHA48060A012V-001 Typical Output Voltage vs. Load
Current at Ta = 25 degrees
iHA48060A012V-001 Typical startup characteristic
from on/off at full load. Upper trace - on/off signal,
lower trace – output voltage
iHA48060A012V-001 Typical startup characteristic
from input voltage application at full load. Upper trace -
input voltage, lower trace – output voltage
iHA48060A012V-001 Typical transient response.
Load step from 50% to 75% of full load with 0.1A/uS.
Lower trace – output current , upper trace – output
voltage
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Advanced Data Sheet: VetaÒ iHA48060A012V*, 1.2V/60A Output Half Brick
Electrical Characteristics (continued):
iHA48060A012V-001 Current Limit
Ta = 25 Deg C.
1.4
1.2
1
0.8
0.6
0.4
0.2
0
6
16
26
36
46
56
66
76
86
Output Current (A)
Vin = 36V
Vin = 48V
Vin = 75V
iHA48060A012V-001 Typical Output Current Limit
Characteristics vs. Input Voltage at Ta=25 degrees.
iHA48060A012V-001 Typical Output Ripple at nominal
Input voltage and full load with external capacitors
47uF+1uF+0.1uF at Ta=25 degrees
Input Current Vs. Input Voltage
Output Voltage Vs. Input Voltage
Ta = 25 Deg C.
Ta = 25 Deg C.
3
2.5
2
1.6
1.2
0.8
0.4
0
Vin decreasing
turn-off
Vin increasing
turn-on
1.5
1
0.5
0
30
35
40
45
50
55
60
65
70
75
30
32
34
36
38
Input Voltage (V)
Input Voltage (V)
Io_min = 6.03A
Io_mid = 30.26A
Io_max = 60.09A
Io_min = 6.03A
Io_mid = 30.26A
Io_max = 60.09A
iHA48060A012V-001 Typical Input Current vs. Input
Voltage Characteristics at Ta=25 degrees.
iHA48060A012V-001 Typical Output Voltage vs. Input
Voltage Turn-on / Turn-off Characteristics – low voltage at
Ta=25 degrees.
Desired
decreased
Vout
Trim
Down
Resistor Vout
(W)
Desired
increased Resistor
Trim Up
Output Voltage Vs. Input Voltage
(W)
1.5
1.08V
1.14V
1.16V
8.61K
18.29K
27.97K
1.24V
0.259K
1
1.26V
1.32V
0.143K
0.0275K
Vin decreasing
turn-on
Vin increasing
turn-off
0.5
0
e.g. trim up to 1.26V
1.26´ (1.2- 0.968´ 1.225)
Rup=
- 0.1= 0.143kW
76
78
Input Voltage (V)
80
1.225´ (1.26- 1.2)
iHA48060A012V-001 Typical Output Voltage vs. Input
Voltage Turn-on / Turn-off Characteristics – high
voltage at Ta=25 degrees.
iHA48060A012V-001 Calculated resistor values for output
voltage adjustment
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Advanced Data Sheet: VetaÒ iHA48060A012V*, 1.2V/60A Output Half Brick
Electrical Characteristics (continued):
1000
100
10
10.00
1.00
0.10
0.01
1
1.20
1.22
1.24
1.26
1.28
1.30
1.32
0.65 0.70 0.75 0.80 0.85 0.90 0.95 1.00 1.05 1.10 1.15 1.20
Desired Decreased Output Voltage (V)
Desired Increased Output Voltage (V)
iHA48060A012V-001 Trim down curve for output
voltage adjustment
iHA48060A012V-001 Trim up curve for output voltage
adjustment
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Advanced Data Sheet: VetaÒ iHA48060A012V*, 1.2V/60A Output Half Brick
Thermal Performance:
60
50
40
30
20
10
30
40
50
60
70
80
90
100
110
120
Ambient Temperature (o C)
NC (0.3 m/s, 60 LFM)
IMS LIMIT 1.0 m/s (200 LFM)
1.0 m/s (200 LFM)
IMS LIMIT => 1.0 m/s (200 LFM)
2.0 m/s (400 LFM)
<
iHA48060A012V-001 maximum output current vs.
ambient temperature at nominal input voltage for airflow
rates natural convection 0.3 m/s (60lfm) to 3.0m/s
(600lfm) with airflow from output to input.
iHA48060A012V-001 maximum output current vs.
ambient temperature at nominal input voltage for airflow
rates natural convection 0.3 m/s (60lfm) to 3.0m/s
(600lfm). Airflow from Vout (+) to Vout (-) with the
module output side on the left.
The thermal curves provided are based upon measurements made in TDK Innoveta’s experimental test setup that is
described in the Thermal Management section. Due to the large number of variables in system design, TDK Innoveta
recommends that the user verify the module’s thermal performance in the end application. The critical component
should be thermo-coupled and monitored, and should not exceed the temperature limit specified in the derating curve
above. It is critical that the thermocouple be mounted in a manner that gives direct thermal contact otherwise significant
measurement errors may result.
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Advanced Data Sheet: VetaÒ iHA48060A012V*, 1.2V/60A Output Half Brick
top of the module and a parallel facing PCB
kept at a constant (0.5 in). The power
Thermal Management:
module’s orientation with respect to the
An important part of the overall system
airflow direction can have
a
significant
design process is thermal management;
thermal design must be considered at all
levels to ensure good reliability and lifetime
of the final system. Superior thermal design
and the ability to operate in severe
application environments are key elements
of a robust, reliable power module.
impact on the unit’s thermal performance.
Adjacent PCB
Module
Centerline
A finite amount of heat must be dissipated
from the power module to the surrounding
environment. This heat is transferred by the
three modes of heat transfer: convection,
conduction and radiation. While all three
modes of heat transfer are present in every
application, convection is the dominant
mode of heat transfer in most applications.
However, to ensure adequate cooling and
proper operation, all three modes should be
considered in a final system configuration.
A
I
R
F
L
O
12.7
(0.50)
76 (3.0)
AIRFLOW
The open frame design of the power module
provides an air path to individual
components. This air path improves
convection cooling to the surrounding
environment, which reduces areas of heat
concentration and resulting hot spots.
Air Velocity and Ambient Temperature
Measurement Location
Air Passage
Centerline
Wind Tunnel Test Setup Figure
Dimensions are in millimeters (inches)
Test Setup: The thermal performance data
of the power module is based upon
measurements obtained from a wind tunnel
test with the setup shown in the wind tunnel
figure. This thermal test setup replicates the
typical thermal environments encountered in
most modern electronic systems with
Thermal Derating: For proper application of
the power module in
a
given thermal
environment, output current derating curves
are provided as a design guideline in the
Thermal Performance section for the power
module of interest. The module temperature
should be measured in the final system
configuration to ensure proper thermal
management of the power module. For
thermal performance verification, the module
temperature should be measured at the
distributed
power
architectures.
The
electronic equipment in networking, telecom,
wireless, and advanced computer systems
operates in similar environments and utilizes
vertically mounted (PCBs) or circuit cards in
cabinet racks.
location
indicated
in
the
thermal
measurement location figure in the Thermal
Performance section for the power module
of interest. In all conditions, the power
module should be operated below the
maximum operating temperature shown on
the derating curve. For improved design
margins and enhanced system reliability, the
power module may be operated at
temperatures below the maximum rated
operating temperature.
The power module is mounted on a 0.062
inch thick, 6 layer, 2oz/layer PCB and is
vertically oriented within the wind tunnel.
Power is routed on the internal layers of the
PCB. The outer copper layers are thermally
decoupled from the converter to better
simulate the customer’s application. This
also results in a more conservative derating.
The cross section of the airflow passage is
rectangular with the spacing between the
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Advanced Data Sheet: VetaÒ iHA48060A012V*, 1.2V/60A Output Half Brick
Heat transfer by convection can be
enhanced by increasing the airflow rate that
the power module experiences. The
maximum output current of the power
module is a function of ambient temperature
(TAMB) and airflow rate as shown in the
thermal performance figures on the thermal
performance page for the power module of
interest. The curves in the figures are shown
for natural convection through 3 m/s (600
ft/min). The data for the natural convection
condition has been collected at 0.3 m/s (60
ft/min) of airflow which is the typical airflow
generated by other heat dissipating
components in many of the systems that
these types of modules are used in. In the
final system configurations, the airflow rate
for the natural convection condition can vary
due to temperature gradients from other
heat dissipating components.
Standard heatsink kits are available from
TDK Innoveta for vertical module mounting
in two different orientations (longitudinal –
perpendicular to the direction of the pins and
transverse – parallel to the direction of the
pins). The heatsink kit contains four M3 x
0.5 steel mounting screws and a precut
thermal interface pad for improved thermal
resistance between the power module and
the heatsink. The screws should be installed
using a torque-limiting driver set between
0.35 and 0.55 Nm (3-5 in-lbs).
During heatsink assembly, the base-plate to
heatsink interface must be carefully
managed. A thermal pad may be required
to reduce mechanical-assembly-related
stresses
and
improve
the
thermal
connection. Please contact TDK Innoveta
Engineering for recommendations on this
subject.
Heatsink Usage: For applications with
demanding environmental requirements,
such as higher ambient temperatures or
higher power dissipation, the thermal
performance of the power module can be
improved by attaching a heatsink or cold
plate. The iHx platform is designed with a
base plate with four M3 X 0.5 through-
threaded mounting fillings for attaching a
heatsink or cold plate. The addition of a
heatsink can reduce the airflow requirement
and ensure consistent operation and
extended reliability of the system. With
improved thermal performance, more power
can be delivered at a given environmental
condition.
The system designer must use an accurate
estimate or actual measurement of the
internal airflow rate and temperature when
doing the heatsink thermal analysis. For
each application, a review of the heatsink fin
orientation should be completed to verify
proper fin alignment with airflow direction to
maximize the heatsink effectiveness. With
respect to TDK Innoveta standard heatsinks,
contact TDK Innoveta for the latest
performance data.
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Advanced Data Sheet: VetaÒ iHA48060A012V*, 1.2V/60A Output Half Brick
It is recommended that the power module be
kept off for at least 100mS each time it is
turned off.
Operating Information:
Over-Current Protection: The power
modules have current limit protection to
protect the module during output overload and
short circuit conditions. During overload
conditions, the power modules may protect
themselves by entering a hiccup current limit
mode. The modules will operate normally
once the output current returns to the
specified operating range. There is a typical
delay of 2mS from the time an overload
condition appears at the module output until
the hiccup mode will occur.
The standard on/off logic is positive logic. The
power module will turn on if terminal 2 is left
open and will be off if terminal 2 is connected
to terminal 4. An optional negative logic is
available. The power module will turn on if
terminal 2 is connected to terminal 4, and it
will be off if terminal 2 is left open.
Vin (+)
On/ Off
Output Over-Voltage Protection: The power
modules have a control circuit, independent of
the primary control loop that reduces the risk
of over voltage appearing at the output of the
power module during a fault condition. If there
is a fault in the primary regulation loop, the
over voltage protection circuitry will cause the
power module to shut down. The module
remains off unless either the input power is
recycled or the on/off switch is toggled.
Vin(-)
An On/Off Control Circuit
Output Voltage Adjustment: The output
voltage of the power module may be adjusted
by using an external resistor connected
between the Vout trim terminal (pin 7) and
either the Sense (+) or Sense (-) terminal. If
the output voltage adjustment feature is not
used, pin 7 should be left open. Care should
be taken to avoid injecting noise into the
power module’s trim pin. A small 0.01uF
capacitor between the power module’s trim
pin and Sense (-) pin may help avoid this.
The iHA VetaÒ family also offers a hiccup
over-voltage protection once it detects that the
output voltage has reached the level indicated
in the Electrical Data section for the power
module of interest. When the condition
causing the over-voltage is corrected, the
module will operate normally.
Thermal Protection:When the power
modules exceed the maximum operating
temperature, the modules may turn-off to
safeguard the power unit against thermal
damage. The module will auto restart as the
unit is cooled below the over temperature
threshold.
Vout(+)
Sense(+)
Trim
Remote On/Off: - The power modules have
an internal remote on/off circuit. The user
must supply an open-collector or compatible
switch between the Vin(-) pin and the on/off
pin. The maximum voltage generated by the
power module at the on/off terminal is 15V.
The maximum allowable leakage current of
the switch is 50uA. The switch must be
capable of maintaining a low signal Von/off <
1.2V while sinking 1mA.
Rdown
Sense(-)
Vout(-)
Circuit to decrease output voltage
With a resistor between the trim and Sense (-)
terminals, the output voltage is adjusted
down. To adjust the output voltage down a
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Advanced Data Sheet: VetaÒ iHA48060A012V*, 1.2V/60A Output Half Brick
percentage of Vout (%Vo) from Vo,nom, the
trim resistor should be chosen according to
the following equation:
be decreased to maintain the maximum rated
power of the module.
As the output voltage is trimmed, the output
over-voltage set point is not adjusted.
Trimming the output voltage too high may
cause the output over voltage protection
circuit to be triggered.
0.968
kW
- 0.1
Rdown =
Vnom
- 1
Vdown
The current limit set point does not increase
as the module is trimmed down, so the
available output power is reduced.
Remote Sense:The power modules feature
remote sense to compensate for the effect of
output distribution drops. The output voltage
sense range defines the maximum voltage
allowed between the output power terminals
and output sense terminals, and it is found on
the electrical data page for the power module
of interest. If the remote sense feature is not
being used, the Sense(+) terminal should be
connected to the Vo(+) terminal and the
Sense (-) terminal should be connected to the
Vo(-) terminal. The output voltage at the Vo(+)
and Vo(-) terminals can be increased by either
the remote sense or the output voltage
Vout(+)
Sense(+)
Rup
Trim
Sense(-)
Vout(-)
adjustment feature. The maximum voltage
increase allowed is the larger of the remote
sense range or the output voltage adjustment
range; it is not the sum of both.
Circuit to increase output voltage
With a resistor between the trim and sense (+)
terminals, the output voltage is adjusted up.
To adjust the output voltage up a percentage
of Vout (%Vo) from Vo,nom the trim resistor
should be chosen according to the following
equation:
As the output voltage increases due to the
use of the remote sense, the maximum output
current must be decreased for the power
module to remain below its maximum power
rating.
Vup(Vnom- 0.968´ Vref)
kW
- 0.1
Rup=
EMC Considerations: TDK Innoveta power
modules are designed for use in a wide
variety of systems and applications. For
assistance with designing for EMC
compliance, please contact TDK Innoveta
technical support.
Vref(Vup- Vnom)
The value of Vref is found in the Electrical
Data section for the power module of interest.
Trim up and trim down curves are found in the
Electrical Characteristics section for the power
module of interest.
Input Impedance:The source impedance of
the power feeding the DC/DC converter
module will interact with the DC/DC converter.
To minimize the interaction, a 200-1000uF
input electrolytic capacitor should be present.
The maximum power available from the power
module is fixed. As the output voltage is
trimmed up, the maximum output current must
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Advanced Data Sheet: VetaÒ iHA48060A012V*, 1.2V/60A Output Half Brick
Input/Output Ripple and Noise Measurements:
12uH
1
2
Battery
+
+
Voutput
-
RLoad
Cext
Cin
Vinput
-
220uF
esr<0.1
100KHz
esr<0.7
100KHz
Ground Plane
The input reflected ripple is measured with a current probe and oscilloscope. The ripple current is the current through the
12uH inductor. The capacitor Cin shall be at least 100uF/100V. One 470uF or two 220uF/100V capacitors in parallel are
recommended.
The output ripple measurement is made approximately 9 cm (3.5 in.) from the power module using an oscilloscope and
BNC socket. The capacitor Cext is located about 5 cm (2 in.) from the power module; its value varies from code to code
and is found on the electrical data page for the power module of interest under the ripple & noise voltage specification in
the Notes & Conditions column.
60Vdc, the output can be considered SELV
only if the following conditions are met:
Safety Considerations:
1) The input source is isolated from the
ac mains by reinforced insulation.
2) The input terminal pins are not
accessible.
3) One pole of the input and one pole of
the output are grounded or both are
kept floating.
All TDK Innoveta products are certified to
regulatory standards by an independent,
Certified Administrative Agency laboratory.
UL 1950, 3rd edition (US & Canada), and
other global certifications are typically
obtained for each product platform.
4) Single fault testing is performed on
the end system to ensure that under a
single fault, hazardous voltages do
not appear at the module output.
Various safety agency approvals are pending
on the iHx product family. For safety agency
approval of the system in which the DC-DC
power module is installed, the power module
must be installed in compliance with the
creepage and clearance requirements of the
safety agency. The isolation is basic
insulation. For applications requiring basic
insulation, care must be taken to maintain
minimum creepage and clearance distances
when routing traces near the power module.
To preserve maximum flexibility, the power
modules are not internally fused. An external
input line normal blow fuse with the maximum
rating stipulated in the Electrical Data section
is required by safety agencies. A lower value
fuse can be selected based upon the
maximum dc input current and maximum
inrush energy of the power module
As part of the production process, the power
modules are hi-pot tested from primary and
secondary at a test voltage of 1500Vdc. The
case pin is considered a primary pin for the
purpose of hi-pot testing.
Reliability:
The power modules are designed using TDK
Innoveta’s stringent design guidelines for
component derating, product qualification, and
design reviews. Early failures are screened
out by both burn-in and an automated final
test. The MTBF is calculated to be greater
When the supply to the DC-DC converter is
less than 60Vdc, the power module meets all
of the requirements for SELV. If the input
voltage is a hazardous voltage that exceeds
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Advanced Data Sheet: VetaÒ iHA48060A012V*, 1.2V/60A Output Half Brick
than 2M hours using the Telcordia TR-332
calculation method.
are assembled at ISO certified assembly
plants.
Improper handling or cleaning processes can
adversely affect the appearance, testability,
and reliability of the power modules. Contact
TDK Innoveta technical support for guidance
regarding proper handling, cleaning, and
soldering of TDK Innoveta’s power modules.
Warranty:
TDK Innoveta’s comprehensive line of power
solutions includes efficient, high-density DC-
DC converters. TDK Innoveta offers a three-
year limited warranty. Complete warranty
information is listed on our web site or is
available upon request from TDK Innoveta.
Quality:
TDK Innoveta’s product development process
incorporates advanced quality planning tools
such as FMEA and Cpk analysis to ensure
designs are robust and reliable. All products
TDK Innoveta Inc.
3320 Matrix Drive, Suite 100
Richardson, Texas 75082
Information furnished by TDK Innoveta is believed to be accurate and reliable. However, TDK
Innoveta assumes no responsibility for its use, nor for any infringement of patents or other rights of
third parties, which may result from its use. No license is granted by implication or otherwise under
any patent or patent rights of TDK Innoveta. TDK Innoveta components are not designed to be used
in applications, such as life support systems, wherein failure or malfunction could result in injury or
death. All sales are subject to TDK Innoveta’s Terms and Conditions of Sale, which are available
upon request. Specifications are subject to change without notice. TDK logo is a trademark or
registered trademark of TDK Corporation.
Phone (877) 498-0099 Toll Free
(469) 916-4747
Fax
(877) 498-0143 Toll Free
(214) 239-3101
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