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參數(shù)資料
| 型號： | MM1414 |
| 廠商： | MITSUMI ELECTRIC CO LTD |
| 元件分類： | 電源管理 |
| 英文描述： | Protection of Lithium Ion Batteries |
| 中文描述： | POWER SUPPLY SUPPORT CKT, PDSO20 |
| 封裝： | TSOP-20 |
| 文件頁數(shù)： | 3/9頁 |
| 文件大小： | 243K |
| 代理商： | MM1414 |
MITSUMI
Protection of Lithium Ion Batteries MM1414
Pin Description
Pin No.
Pin name
I/O
Functions
Overcharge detection output pin
NPNTr open collector output
Normal: high impedance
Overcharge: Low
Not connected
Overcurrent detection pin
Monitors load current equivalently by the voltage drop between discharge control
FET source and drain, and makes DCHG pin high when the voltage goes below
overcurrent detection voltage, turning off discharge control FET. After
overcurrent detection, current flows from this pin and when there is a light load,
overcurrent mode is released. This function does not operate in discharge mode.
Not connected
Discharge control FET (P-ch) drive pin
Normal: Low
Overdischarge: High
Not connected
Overdischarge detection dead time setting pin
Dead time can be set by connecting a capacitor between CDC pin and ground.
Overcurrent detection dead time setting pin
Dead time can be set by connecting a capacitor between COL pin and ground.
Overcharge detection dead time setting pin
Dead time can be set by connecting a capacitor between COV pin and ground.
Ground pin
3 cell switch pin
SEL pin = GND: 3 cell (no V1 cell detection)
SEL pin = V
CC
: 4 cell
Not connected
Discharge FET ON/OFF pin
CON pin low; DCHG pin low
CON pin high; DCHG pin high
Not connected
V1 cell high side voltage input pin
V2 cell high side voltage and V3 cell low side voltage input pin
V3 cell high side voltage and V4 cell low side voltage input pin
V4 cell high side voltage input pin
Not connected
Power supply input pin
1
OV
Output
2
N.C
3
CS
Input
4
N.C
5
DCHG
Output
6
N.C
7
CDC
Input
8
COL
Input
9
COV
Input
10
GND
Input
11
SEL
Input
12
N.C
13
CON
Input
14
N.C
V1
V2
V3
V4
N.C
V
CC
15
Input
Input
Input
Input
16
17
18
19
20
Input
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