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參數(shù)資料
| 型號： | UPC2260 |
| 英文描述： | UPC2260 Data Sheet | Data Sheet[06/2000] |
| 中文描述： | UPC2260數(shù)據(jù)表|數(shù)據(jù)表[06/2000] |
| 文件頁數(shù)： | 1/12頁 |
| 文件大?。?/td> | 72K |
| 代理商： | UPC2260 |
DATA SHEET
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.
BIPOLAR ANALOG INTEGRATED CIRCUIT
μ
PC2250 SERIES
LOW-SATURATED STABILIZED POWER SUPPLY WITH SYSTEM RESET PIN
Document No. G14451EJ2V0DS00 (2nd edition)
Date Published December 1999 N CP(K)
Printed in Japan
1999
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
Low minimum voltage difference between input and output
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.
Low circuit operating current under no load
I
BIAS
= 1.3 mA TYP.
PIN CONFIGURATION (Marking Side)
4-pin plastic SIP (TO-126)
μPC2251H, 2253H, 2255H
ORDERING INFORMATION
Part Number
Package
Output Voltage
μPC2251H
4-pin plastic SIP (TO-126)
3 V
μPC2253H
4-pin plastic SIP (TO-126)
5 V (TYPE1)
μPC2255H
4-pin plastic SIP (TO-126)
5 V (TYPE2)
BLOCK DIAGRAM
OUTPUT
INPUT
Reference
voltage circuit
Overcurrent
limiter circuit
Reset circuit
Error
amplifier
circuit
GND
RESET
Starter
circuit
1: INPUT
2: RESET
3: GND
4: OUTPUT
1 2
3 4
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