●General Description

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.

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.

●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).

●Applications

■ Industrial Equipment.

■ Arcade Amusement.