Datasheet > BD3775AF

BD3775AF

更新时间： 2024-11-03 11:08:15

品牌	Logo	应用领域
罗姆 - ROHM		比较器
页数	文件大小	规格书
24页	1645K
描述
BD3775AF是电源电压监视用IC，可在电源电压发生瞬时中断、瞬时降低时产生复位信号，在电源恢复正常时发生上电复位。检测电压除了用于5V电源之外，还有可进行任意电源检测设定的输入，可轻松实现2个系统的电源电压监视。此外，还内置了1个可用于过电压保护及高精度基准电压输出等的比较器，可支持复杂的应用。

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BD3775AF 数据手册

Datasheet

Power Supply Monitor

2ch Reset & Comparator IC

BD3775AF

●General Description

●Key Specifications

BD3775AF is designed to monitor the voltage level of one

or two power supplies (+5V and an arbitrary voltage) in a

microprocessor circuit, memory board in large-size

computer, for example.

If the circuit’s power supply deviates more than a specified

amount, then the BD3775AF generates a reset signal to the

microprocessor.

 Input Voltage

 Voltage Detection

:VSAL

3.5V to 18V

4.20V(Typ.)

4.30V(Typ.)

1.230V(Typ.)

1.245V(Typ.)

:VSAH

:VSB

:VSC

Also, the BD3775AF has a comparator for the over voltage

protection and the high-precision reference voltage and so

on apart from the above features. It is also available for

more complex applications so.

 Operating Temperature

-40℃ to 85℃

●Packages

SOP8

5.00mm x 6.20mm x 1.71mm

●Feature

■ High precision voltage detection

(VSA = 4.20V ± 2.5%).

■ Internal reset circuit that user selectable threshold

level with hysteresis (VSB = 1.230V ± 1.5%).

Internal open collector output comparators to create

Over Voltage Detection circuit, reference voltage

generator, and more. (VSC,OUTC)

■ User selectable delay time of releasing reset signal

depending on capacitor of CT node.

■ Low power dissipation (Icc = 0.35mA ,VCC = 5V).

■ SOP8 package (5.0×6.2mm,1.27mm pitch).

SOP8

●Applications

■ Industrial Equipment.

■ Arcade Amusement.

●Typical Application Circuit

VCC

RESET

RESET_B

VSA

VSC

OUTC

GND

VSB

VCC

OVP

Figure 1. Typical Application Circuit

○Structure:Silicon Monolithic Integrated Circuit ○This product is not designed for normal operation with in a radioactive

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