bd4729gg-tr ROHM Co. Ltd., bd4729gg-tr Datasheet

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bd4729gg-tr

Manufacturer Part Number
bd4729gg-tr
Description
Bipolar Voltage Detector Ics
Manufacturer
ROHM Co. Ltd.
Datasheet
Voltage Detector ICs
Bipolar
Voltage Detector ICs
 Description
 Features
 Applications
 Selection Guide
 Lineup
© 2010 ROHM Co., Ltd. All rights reserved.
www.rohm.com
BD47□□G series
The BD47□□G Series is a reset IC that was developed to prevent system errors at transient state when the power of CPU
or logic circuit switches ON/OFF or 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 are realized low current consumption, making them ideal for portable products.
All electronic devices that use microcontrollers and logic circuits
Marking
Part Number : BD47
1) Detection voltage range: 0.1-volt step line-up 1.9~4.6V (Typ.)
2) High accuracy voltage detection: ±1%
3) Low current consumption
4) Open collector “L” reset output
5) Compact SSOP5 package
BW
BU
BZ
BY
BX
BV
BT
BS
B2
B1
Detection
Voltage
4.6V
4.5V
4.4V
4.3V
4.2V
4.1V
4.0V
3.9V
3.8V
3.7V
Part Number
BD4746
BD4745
BD4744
BD4743
BD4742
BD4741
BD4740
BD4739
BD4738
BD4737
1
G
Marking
BQ
BM
BK
BR
BP
BN
B3
B4
BL
BJ
No.
1
Detection Voltage
Detection
Voltage
Specifications
3.6V
3.5V
3.4V
3.3V
3.2V
3.1V
3.0V
2.9V
2.8V
2.7V
1/7
Part Number
BD4736
BD4735
BD4734
BD4733
BD4732
BD4731
BD4730
BD4729
BD4728
BD4727
Description
Example: Voltage range over 1.9V~4.6V in
0.1V increments.
2.9V is marked as “29”
Marking
BH
BG
BC
BF
BE
BD
BB
BA
Detection
Voltage
2.6V
2.5V
2.4V
2.3V
2.2V
2.1V
2.0V
1.9V
2010.04 - Rev.C
No.10006ECT05
Part Number
BD4726
BD4725
BD4724
BD4723
BD4722
BD4721
BD4720
BD4719

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bd4729gg-tr Summary of contents

Page 1

Voltage Detector ICs Bipolar Voltage Detector ICs BD47□□G series  Description The BD47□□G Series is a reset IC that was developed to prevent system errors at transient state when the power of CPU or logic circuit switches ON/OFF or momentary ...

Page 2

BD47□□G series  Absolute maximum ratings (Ta=25°C) Parameter Power Supply Voltage Output Voltage Power Dissipation Operating Temperature Ambient Storage Temperature *1 When a ROHM standard circuit board (70mm×70mm×1.6mm glass epoxy board) is mounted. *2 When used at temperatures higher than ...

Page 3

BD47□□G series  Reference Data (Unless specified otherwise, Ta=25°C) 10 【 BD4729G 】 Icc1=1.34μA 1 Icc2=1.46μ SUPPLY VOLTAGE : V ...

Page 4

BD47□□G series  Explanation of Operation BD47□□G series has the detection voltages and release voltages as threshold voltages and, as the voltages applied to the input reach their respective threshold voltages, the output switches from “High” to “Low” and from ...

Page 5

BD47□□G series  Circuit Applications 1) The following is an example of an application circuit using Reset IC for normal power supply detection. BD47□□G series requires a pull up resistor on the output terminal. The pull up resister value should ...

Page 6

BD47□□G series  Operation Notes 1. Absolute maximum range Absolute Maximum Ratings are those values beyond which the life of a device may be destroyed. We cannot be defined the failure mode, such as short mode or open mode. Therefore ...

Page 7

BD47□□G series  Part Number Selection Bipolar Reset SSOP5 2.9±0 +0.05 0.42 −0.04 0.95 0.1 S www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved Detection Voltage SSOP5 ...

Page 8

No copying or reproduction of this document, in part or in whole, is permitted without the consent of ROHM Co.,Ltd. The content specified herein is subject to change for improvement without notice. The content specified herein is for the purpose ...

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