R3112Q322C-TR-F [RICOH]
Power Supply Support Circuit, Fixed, 1 Channel, CMOS, PDSO5, ROHS COMPLIANT, SC-88A, 5 PIN;型号: | R3112Q322C-TR-F |
厂家: | RICOH ELECTRONICS DEVICES DIVISION |
描述: | Power Supply Support Circuit, Fixed, 1 Channel, CMOS, PDSO5, ROHS COMPLIANT, SC-88A, 5 PIN 光电二极管 |
文件: | 总2页 (文件大小:139K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
R3112x Series
Low Input VD with Delay Function
The R3112x Series are CMOS-based voltage detector ICs with the built-in output delay circuit, which can operate at low voltage.
The delay time can be set with an external capacitor.
FEATURES
• Supply Current (ISS1)·······················Typ. 0.5μA (VDD=-VDET+1V, R3112x15x)
• Operating Voltage Range (VDD) ······0.7V to 6.0V (Topt=25°C)
• Detector Threshold Accuracy ·······± 2%
Temp. coeff. of Detector Threshold···Typ. ± 100ppm/°C
• Two Output Types ··························Nch. Open Drain and CMOS
•
•
Detector Threshold Range (-VDET)·····0.9V to 5.0V (internally fixed)
• Output Delay ·································Typ. 100ms delay set with a 0.022μF external • Packages········································SON1612-6, SC-82AB,
capacitor
• Reset Signal ···································"L"
SC-88A, SOT-23-5
BLOCK DIAGRAMS
R3112xxxxA
R3112xxxxC
(Nch. open drain output)
(CMOS output)
VDD
VDD
OUT
GND
RD
RD
OUT
GND
Vref
Vref
CD
CD
SELECTION GUIDES
TIMING CHART
Package
SON1612-6
SC-82AB
SC-88A
Quantity per Reel
Part No.
Release Voltage
+VDET
Supply
Voltage
(VDD)
Hysteresis
Hysteresis
4,000 pcs
3,000 pcs
3,000 pcs
3,000 pcs
R3112D
.
xx.
1.
∗-TR-F
Detector Threshold
-
VDET
R3112Q
R3112Q
.
.
xx
xx
.
.
1
2
.
∗-TR-F
∗-TR-F
Minimum Operating
Voltage
VDDL
GND
.
SOT-23-5
R3112N
.
xx.
1.
∗-TR-F
Pull-up Voltage
Output
Voltage
(VOUT)
.
xx.
: Specify the detector threshold within the range
0.9V (
.
09
.
) to 5.0V (
.
50
.
) in 0.1V steps.
GND
: Select the output type from (
.
A
.
) Nch. open drain or (
.
C
.
) CMOS.
.
∗
tPHL
tD
tPHL
tD
R3112xxxxA
R3112xxxxC
PACKAGES (Top View)
HOW TO DETERMINE DELAY TIME
Letting the capacity of an external capacitor CD (F),
the delay time (tD) is found from the following equation:
SON1612-6
SC-82AB
SC-88A
SOT-23-5
4
3
5
4
6
5
4
5
4
tD=0.69 × 6.5 × 106 × CD (s)
1
2
3
1
2
3
1
2
3
1
2
1
OUT
GND
CD
NC
GND
VDD
1
VDD
GND
CD
1
VDD
NC
GND
CD
OUT
1
2
3
4
5
OUT
VDD
GND
NC
2
3
4
5
6
2
3
4
2
3
4
5
OUT
CD
APPLICATIONS
• Microcontroller and logic circuit reset
• Battery checker
• Window comparator
• Wave shaping circuit
• Battery back-up circuit
• Power failure detector
No.EK-091-091101
CMOS Voltage Detector
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