Bipolar Voltage Detector - Rohm
Description
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)
●Typical Application Circuit
Datasheet
●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.
BD47xx series
VDD VOUT GND
VDD
RL
RESET
CPU Micro-controller
CL GND
●Connection Diagram
SSOP5
TOP VIEW
VDD
VOUT
Marking
Lot.
No
N.
C.
SUB GND
●Pin Descriptions
PIN No.
Symbol
Function
1
N.
C.
Unconnected Terminal
2 SUB Substrate*
3 GND GND
4 VOUT Reset Output
5 VDD Power Supply Voltage
*Substrate Pin should be connected with GND
○Product structure：Silicon monolithic integrated circuit
.
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rohm.
com © 2016 ROHM Co.
, Ltd.
All rights reserved.
TSZ22111・14・001
○This product is not designed for protection against radioactive rays
1/10
TSZ02201-0R7R0G300020-1-2 21.
Jun.
2016 Rev.
007
BD47xx series
●Ordering Information
BD4 7 x x
G-TR
Part Number
(SOT-23-5)
Reset Voltage Value 19 : 1.
9V
0.
1V step 46 : 4.
6V
Package G : SSOP5
Packaging and forming specification TR : Embossed tape
and reel
●Lineup
Marking
B2 B1 BZ BY BX BW BV BU BT BS
Detection Voltage
4.
6V 4.
5V 4.
4V 4.
3V 4.
2V 4.
1V ...
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