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2010.12 - Rev.A

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Power Management ICs for Automotive Body Control

Voltage Detector ICs

with Watchdog Timer

BD37A19FVM,BD37A41FVM,BD87A28FVM,BD87A29FVM

BD87A34FVM,BD87A41FVM,BD99A41F

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Description

The BD37A19FVM, BD37A41FVM, BD87A28FVM, BD87A29FVM, BD87A34FVM, BD87A41FVM and BD99A41F are

watchdog timer reset ICs. It delivers a high precision detection voltage of

1.5% and a super-low current consumption of 5

µA (Typ.). It can be used in a wide range of electronic devices to monitor power supply voltages and in system operation to

prevent runaway operation.

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Features

1) High precision detection voltage:

1.5%, 2.5% (Ta = −40℃ to 105℃)

2) Super-low current consumption: 5 µA (Typ.)

3) Built-in watchdog timer

4) Reset delay time can be set with the CT pin's external capacitance.

5) Watchdog timer monitor time and reset time can be set with the CTW pin's external capacitance.

6) Output circuit type: N-channel open drain

7) Package: MSOP8 (BD37A□□FVM, BD87A□□FVM) / SOP8 (BD99A41F)

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Applications

All devices using microcontrollers or DSP, including vehicle equipment, displays, servers, DVD players,

and telephone systems.

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Product line

INH logic

H: Active

L: Active

Model

BD37A□□FVM

BD99A41F

BD87A□□FVM

Detection voltage

1.9 V/4.1V

4.1 V

2.8V/2.9V/3.4 V/4.1V

No.10039EAT12