R3132x/R3133D Series
Voltage Detector with Delay Function (Internal Counter Type)
The R3132x/R3133D Series are CMOS-based voltage detector ICs with the built-in output delay circuit. There is no hysteresis between
the detector threshold and the released voltage. By inputting "L" signal to MR pin, the manual reset signal is outputted. Reset signal
can be chosen from "L" (R3132x) or "H" (R3133D). A delay capacitor is not needed, because the output delay time of 240ms is
generated with the counter in the IC.
FEATURES
• Supply Current (ISS)···················· Typ. 0.8μA (VDD=VDET+1.0V, R313xx15Ex)
Operating Voltage Range (VDD) 0.75V to 6.0V (R3132x, Absolute maximum rating: 6.5V),
• Detector Threshold Accuracy········ ± 2%
Temp. coeff. of Detector Threshold ·· Typ. ± 100ppm/°C
•
0.8V to 6.0V (R3133D, Absolute maximum rating: 6.5V) • Two Output Types ······················ Nch. Open Drain and CMOS
• Detector Threshold Range (VDET)·· 1.0V to 5.0V ∗(Internally fixed)
• Output Delay ···························· Typ. 240ms (Accuracy ± 15%)
• Reset Signal····························· R3132x : "L", R3133D : "H"
• Packages ································· SON1612-6,
SC-82AB (only R3132Q)
) For detail, please refer to the below SELECTION GUIDES.
∗
BLOCK DIAGRAMS
R3132xxxEA
R3133DxxEA
R3132xxxEC
R3133DxxEC
(CMOS output)
(Nch. open drain output)
VDD
MR
VDD
MR
-
-
Delay
Delay
Circuit
OUT
Circuit
+
+
OUT
Vref
Vref
GND
GND
SELECTION GUIDES
TIMING CHARTS
R3132x
Halogen Free
Package
Q'ty per Reel
Part No.
R3132D
R3133D
R3132Q
3,000 pcs
.
xx
.
E
E
E
.
∗(
∗(
∗(
.
y)-TR-FE
y)-TR-FE
y)-TR-FE
Detector Threshold
VDET
SON1612-6 4,000 pcs
Supply Voltage
.
xx
.
.
.
(VDD)
VDDL
GND
Minimum Operating
Voltage
.
xx
.
.
.
SC-82AB
.
xx
.
:
:
Specify the detector threshold within the range of
Manual Reset
(MR)
1.0V (
.
10
.
) to 5.0V (
.
50
.
) in 0.1V steps.
VDDL
GND
Minimum Operating
Voltage
(2.32V, 2.63V, 2.93V, 3.08V, 4.38V and 4.63V can also be specified.)
If the detector threshold includes the 3rd digit, indicate the digit of 0.01V.
y
.
.
(Example) If the detector threshold is 2.63V, R313xx
.
26
.
E
.
3
.
-TR-FE
∗
Output Voltage
(VOUT)
: Select the output type from (
.
A
.
) Nch. open drain or (
.
C
.
) CMOS.
.
∗
GND
tdelay
tdelay
PACKAGES (Top View)
R3133D
SON1612-6
SC-82AB
4
Detector Threshold
VDET
6
5
4
3
Supply Voltage
(VDD)
VDDL
GND
Minimum Operating
Voltage
Manual Reset
(MR)
VDDL
GND
1
2
3
Minimum Operating
Voltage
1
2
1
2
3
4
5
6
VDD
1
2
3
4
GND
OUT
MR∗
VDD
Output Voltage
(VOUT)
GND
MR∗
OUT
GND
NC
GND
tdelay
tdelay
The detector threshold is the same as the released voltage, not hysteresis.
) Manual reset input pin ("L" active)
∗
APPLICATIONS
• Microcontroller and logic circuit reset
• Wave shaping circuit
• Battery checker
• Battery back-up circuit
• Window comparator
• Power failure detector
No.EK-093-140930
CMOS Voltage Detector
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