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參數(shù)資料
| 型號： | MM1174 |
| 廠商： | MITSUMI ELECTRIC CO LTD |
| 元件分類： | 電源管理 |
| 英文描述： | System Reset (with battery back-up) Monolithic IC |
| 中文描述： | POWER SUPPLY SUPPORT CKT, PDSO8 |
| 封裝： | SOP-8 |
| 文件頁數(shù)： | 1/6頁 |
| 文件大?。?/td> | 63K |
| 代理商： | MM1174 |
MITSUMI
System Reset (with battery back-up) MM1025, 1174
System Reset (with battery back-up)
Monolithic IC MM1025, 1174
Outline
These ICs were developed for D-RAM and dummy S-RAM battery back-up. D-RAM and dummy S-RAM
power supplies differ from that of S-RAMs because 5V or 3.3V of power supply is required even during
battery back-up. Therefore, these ICs provide voltage from a stable power supply during both normal
operation and back-up. Also, the internal stable power supply switches automatically to battery back-up if the
main power supply voltage goes down for any reason.
Features
1. Battery back-up
MM1025
Current consumption
Input/output voltage difference I
L
=40mA
Output current
MM1174
Current consumption
Input/output voltage difference I
L
=40mA
Output current
2. Normal operation
MM1025
Input/output voltage difference
Output current
External transistor drive current V
CC
= 6V
Current consumption
MM1174 (for external transistor)
Input/output voltage difference
Output current
External transistor drive current (no built-in TR) V
CC
=3.6V
Current consumption
600μA typ.
0.25V typ.
40mA max.
300μA typ.
0.13V typ.
40mA max.
I
L
=80mA (built-in transistor)
V
CC
=6V
0.29V typ.
80mA typ.
15mA typ.
900μA max.
I
L
=200mA
0.13V typ.
Depends on external transistor
10mA typ.
500μA max.
3. Switching voltage from V
CC
to Battery V
CC
=High Low
MM1025
MM1174
4. V
CC
-Battery forced switching and detection voltage adjustment possible
4.9V typ.
3.25V typ.
Package
SOP-8A
Applications
1. Memory cards (D-RAM cards, other)
2. PCs, word processors and other equipment with D-RAMs
3. Fax machines, photocopiers and other office equipment with D-RAMs
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| MM1177 | 制造商:MITSUMI 制造商全稱:Mitsumi Electronics, Corp. 功能描述:Charge and discharge control for coin-type lithium batteries and manganese dioxide lithium batteries |
| MM1177A | 制造商:MITSUMI 制造商全稱:Mitsumi Electronics, Corp. 功能描述:Charge and discharge control for coin-type lithium batteries and manganese dioxide lithium batteries |
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| MM1177BF | 制造商:MITSUMI 制造商全稱:Mitsumi Electronics, Corp. 功能描述:Charge and discharge control for coin-type lithium batteries and manganese dioxide lithium batteries |
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