17431 데이터 시트보기 (PDF) - Hitachi -> Renesas Electronics

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17431

Shunt Regulator

Hitachi -> Renesas Electronics 

HA17431 Series

Shunt Regulator

ADE-204-049A (Z)

Rev.1

Sep. 2002

Description

The HA17431 series is temperature-compensated variable shunt regulators. The main application of these

products is in voltage regulators that provide a variable output voltage. The on-chip high-precision

reference voltage source can provide ±1% accuracy in the V versions, which have a VKA max of 16 volts.

The HA17431VLP, which is provided in the MPAK-5 package, is designed for use in switching mode

power supplies. It provides a built-in photocoupler bypass resistor for the PS pin, and an error amplifier

can be easily constructed on the supply side.

Features

• The V versions provide 2.500 V ±1% at Ta = 25°C

• The HA17431VLP includes a photocoupler bypass resistor (2 kΩ)

• The reference voltage has a low temperature coefficient

• The MPAK-5(5-pin), MPAK(3-pin) and UPAK miniature packages are optimal for use on high

mounting density circuit boards

• Car use is provided

Block Diagram

K

PS*

2kΩ

REF

+

−

2.500V

A

Note: * The PS pin is only provided by the HA17431VLP.

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