○Product structure：Silicon monolithic integrated circuit ○This product is not designed for protection against radioactive rays
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Datashee
TSZ02201-0R7R0G300020-1-2
© 2012 ROHM Co., Ltd. All rights reserved.
18.Nov.2012 Rev.005
TSZ22111・14・001
www.rohm.com
Voltage Detector IC Series
Bipolar
Voltage Detector ICs
BD47xx series
●General Description
The BD47xx series is a Voltage Detector IC,
developed to prevent system errors at transient state,
when the power of CPU or logic circuit switches
ON/OFF or in cases of momentary shut down. These
ICs consist of three terminals (power supply, GND and
reset output) to detect power supply voltages and
outputs reset signals of various systems. These ICs
are ultra-compact and have low current consumption,
making them ideal for portable products.
●Features
High accuracy detection
Low current consumption
Very small package
Open collector “L” reset output
Package SSOP5 is similar to SOT-23-5 (JEDEC)
●Key Specifications
Detection voltage range: 1.9V to 4.6V (Typ.)
0.1V steps
High accuracy detection voltage: ±1%
Low current consumption: 1.6µA (Typ.)
Operating temperature range: -40°C to +75°C
●Package
SSOP5 2.90mm x 2.80mm x 1.25mm
●Applications
Circuits using microcontrollers or logic circuits that require
a reset.
●Typical Application Circuit
●Connection Diagram
SSOP5
TOP VIEW
●Pin Descriptions
PIN No. Symbol Function
1 N.C. Unconnected Terminal
2 SUB Substrate*
3 GND GND
4 VOUT Reset Output
5 V
DD
Power Supply Voltage
*Substrate Pin should be connected with GND
GND
BD47xx series
RESET
GND
VOUT
VDDV
DD
CPU
Micro-controller
CL
RL
N.C. SUB GND
V
OUTV
DD
Lot. No
Marking
