Datasheet > BD3951F_09

BD3951F_09

更新时间： 2022-12-20 11:03:46

品牌	Logo	应用领域
罗姆 - ROHM		稳压器
页数	文件大小	规格书
10页	368K
描述
Regulator with Voltage Detector IC

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BD3951F_09 数据手册

Power Management IC Series for Automotive Body Control

Regulator with Voltage Detector IC

BD3951F

No.09039EAT05

●Description

BD3951F is a 5V LDO system regulator particularly developed for automotive applications. The output current of the

regulator can be drawn up to 150mA, and it has built-in power-on reset and input voltage sense. This device can withstand

50V surge input voltage as well as wide ambient temperature operations from -40℃ to +125℃. The adjustable reset delay

time and detection input voltage allow to meet with wide range of design requirements.

●Features

1) Micro processor power supply 5.0V, Adjustable Reset, Adjustable Comparator.

2) 5V is Pch DMOS type low drop out voltage regulator. Iomax=150mA.

3) Low ESR capacitor (Ceramic Capacitor) is available for the Output Capacitor.

4) Over Current Protection built in to prevent the destruction of IC.

5) Thermal Shut Down is built in to prevent the heat runaway.

6) VCC absolute Maximum Ratings 36V.

7) Vcc peak input voltage 50V (*1)

8) Small surface mount package SOP8.

●Applications

Automotive application (Rain Sensor and Cluster Panel etc.) and all other electronics application.

●Absolute Maximum Ratings (Ta=25℃)

Parameter

Vcc Input Voltage

Symbol

Vcc

Limit

-0.3～+36

-0.3～+7

0.2

Unit

Out Terminal Voltage

RES Terminal Voltage

SOUT Terminal Voltage

RES Output Current

Vout

Vres

Vsout

Ires

SOUT Output Current

SIN Input Voltage

Isout

Vsin

2.5

-0.3～+36 ^*3

687 ^*2

Power Dissipation

℃

Operating Temperature Range

Storage Temperature Range

Vcc Peak Input Voltage

Topr

-40～+125

-55～+150

50^*1

Tstg

Vccpeak

*1 tr (rising time) is over 1msec, applied voltage is less than 400msec

*2 Pd is derated at 5.5mW/℃for temperature above Ta=25℃, mounted on 70mm×70mm×1.6mm PCB.

*3 Input current from Vcc to SIN PIN has to be equal and less than 5mA when Vcc voltage is less than SIN PIN voltage.

●Operating Conditions (Ta=-40℃～+125℃)

Limit

Parameter

Symbol

Unit

Min.

6.0

5.5

Typ.

13.5

Max.

4.7

Recommended Supply Voltage ^*4

Operatinal Supply Voltage ^*5

Vcc

Vdet

Cct

13.5

Reset Adjustable Range

Reset Delay Time Controllable Range

Vcc Detection Adjustable Range

μF

Vcc

*4 The range within test condition of the electrical characteristics.

*5 The range exceeding the test condition of the electrical characteristics.

www.rohm.com

2009.07 - Rev.A

1/9

12 3 4 5 6 7...10

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