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參數(shù)資料
| 型號： | MM1412 |
| 廠商： | MITSUMI ELECTRIC CO LTD |
| 元件分類： | 電源管理 |
| 英文描述： | Protection of Lithium-Ion Batteries Monolithic IC |
| 中文描述： | POWER SUPPLY SUPPORT CKT, PDSO8 |
| 文件頁數(shù)： | 3/7頁 |
| 文件大?。?/td> | 124K |
| 代理商： | MM1412 |
MITSUMI
Protection of Lithium-Ion Batteries MM1412
Pin Description
Pin No.
Pin name
Functions
Overcharge detection output pin
PNPT
R
open collector output
Overcharge mode: ON
Normal mode, overdischarge mode, overcurrent mode: OFF
Discharge control FET (N-ch) control output pin
Normal mod, overcharge mode: H
Overdischarge mode, overcurrent mode: L
Overcurrent detection input pin
Monitors discharge current equivalently by the voltage drop between discharge control FET source
and drain. Stops discharge when voltage between CS pin and GND pin goes above overcurrent
detection threshold value, and holds until load is released.
Ground pin, or lower cell load negative pole input pin.
Overcharge detection dead time setting pin
Dead time can be set by adding a capacitor between TD and GND pins.
Battery intermediate potential input pin
Connection pin for lower cell positive electrode side and upper cell negative electrode side.
Power supply input pin
Upper cell positive electrode input pin
Note: Mode Descriptions
(1) Overcharge mode
Either H cell or L cell battery voltage exceeds overcharge detection voltage. Overcharge detection
operation delay can be set by the dead time setting pin.
(2) Normal mode
Both H and L cell battery voltages exceed overdischarge detection voltage and are less than
overcharge detection voltage.
(3) Overdischarge mode
Either H or L cell battery voltage is less than overdischarge detection voltage.
Overdischarge detection dead time is set internally. Overdischarge mode is released when charging
causes voltage to rise above overdischarge detection voltage. Also, when battery voltage goes above
overdischarge release voltage, it resets without charging, but the value is set high. (This function is
included in case charging can not be detected. Also, this release voltage has a temperature coefficient
of
-
6mV/°C.)
(4) Overcurrent mode
Voltage between CS and GND exceeds overcurrent detection voltage during discharge.
1
OC
2
GD
3
CS
4
GND
5
TD
6
VL
7
V
CC
VH
8
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相關(guān)代理商/技術(shù)參數(shù) |
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| MM1414 | 制造商:MITSUMI 制造商全稱:Mitsumi Electronics, Corp. 功能描述:Protection of Lithium Ion Batteries |
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| MM1424 | 制造商:MITSUMI 制造商全稱:Mitsumi Electronics, Corp. 功能描述:IC for XO Monolithic IC |
| MM1425M03F071032-11032-1 | 制造商:UNICORP 功能描述: |
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