Datasheet > UPC2251H

UPC2251H

更新时间： 2024-09-23 23:39:39

品牌	Logo	应用领域
其他 - ETC		调节器模拟IC 输出元件
页数	文件大小	规格书
12页	73K
描述
Analog IC

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UPC2251H 数据手册

DATA SHEET

BIPOLAR ANALOG INTEGRATED CIRCUIT

µPC2250 SERIES

LOW-SATURATED STABILIZED POWER SUPPLY WITH SYSTEM RESET PIN

DESCRIPTION

The µPC2250 series is a collection of low-saturated 4-pin stabilized power supplies with a pin that outputs a reset

signal when a drop in the input voltage is detected.

Because the reverse leakage current of these power supplies is about 1 µA even if a voltage is applied to the

output pin when the input voltage is cut off, these power supplies are ideal for systems with on-board

microprocessors requiring battery backup.

FEATURES

PIN CONFIGURATION (Marking Side)

4-pin plastic SIP (TO-126)

•

Low minimum voltage difference between input and output

µPC2251H, 2253H, 2255H

V^DIF= 0.15 V TYP. (at I^O= 40 mA)

Outputs reset signal (active-low) when the input voltage or

output voltage drops.

Low reverse leakage current during back up

I^OLK= 1 µA TYP.

1: INPUT

3 4

2: RESET

3: GND

Low circuit operating current under no load

I^BIAS= 1.3 mA TYP.

4: OUTPUT

ORDERING INFORMATION

Part Number

Package

Output Voltage

3 V

µPC2251H

µPC2253H

µPC2255H

4-pin plastic SIP (TO-126)

5 V (TYPE1)

5 V (TYPE2)

BLOCK DIAGRAM

INPUT

OUTPUT

Overcurrent

limiter circuit

Starter

circuit

Reference

voltage circuit

Error

amplifier

circuit

RESET

Reset circuit

GND

The information in this document is subject to change without notice. Before using this document, please

confirm that this is the latest version.

Not all devices/types available in every country. Please check with local NEC representative for

availability and additional information.

Document No. G14451EJ2V0DS00 (2nd edition)

Date Published December 1999 N CP(K)

Printed in Japan

1999

12 3 4 5 6 7...12

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