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參數(shù)資料
| 型號： | MAX1894-MAX1924 |
| 廠商： | Maxim Integrated Products, Inc. |
| 元件分類： | 數(shù)字信號處理 |
| 英文描述： | Fixed-Point Digital Signal Processor 288-FCBGA |
| 中文描述： | 先進的鋰電池，包保護器 |
| 文件頁數(shù)： | 6/16頁 |
| 文件大?。?/td> | 308K |
| 代理商： | MAX1894-MAX1924 |
M
Advanced Li+ Battery-Pack Protectors
6
_______________________________________________________________________________________
PIN
1
NAME
B4P
FUNCTION
Cell 4 Positive Connection. Short B4P to B3P for MAX1924V.
Supply Input. Connect this pin to the top of the battery pack through a diode and a capacitor
(see the
Typical Application Circuit
).
Cell 3 Positive Connection
Internal Connection. Float this pin.
Cell 2 Positive Connection
Internal Connection. Float this pin.
Cell 1 Positive Connection
Internal Connection. Float this pin.
Battery Negative. Connection for the cell 1 negative terminal and the top of the current-sense
resistor R
SENSE
. BN is also chip ground.
Pack Negative. The sense resistor (R
SENSE
) is connected between BN and PKN.
Control Input. Drive CTL low for normal operation. Drive CTL high to turn off the three external
protection MOSFETs.
Shutdown. Drive SHDN low for normal operation. Drive SHDN high to put the device into shutdown
if no charger is present.
Trickle-Charge Driver Output.
TKO
drives the gate of an external P-channel trickle-charge MOSFET
low (on) in normal operation.
Fast-Charge Driver Output.
CGO
drives the gate of an external P-channel fast-charge MOSFET low
(on) in normal operation.
Discharge Driver Output.
DSO
drives the gate of an external P-channel discharge control MOSFET
low (on) in normal operation.
Common Source Connection for MOSFETs. SRC provides the bias for gate drivers
DSO
,
TKO
,
and
CGO
.
2
V
CC
3
4
5
6
7
8
B3P
IC3
B2P
IC2
B1P
IC1
9
BN
10
PKN
11
CTL
12
SHDN
13
TKO
14
CGO
15
DSO
16
SRC
Pin Description
DISCHARGE-CURRENT FAULT TIMING
MAX1894 toc10
V
PKN
- V
BN
100mV/div
0
0
DSO
5V/div
1ms/div
CHARGE-CURRENT FAULT TIMING
V
PKN
- V
BN
100mV/div
0
0
1ms/div
CGO
5V/div
PACK-SHORT CURRENT FAULT TIMING
V
- V
BN
200mV/div
0
0
100
μ
s/div
DSO
5V/div
Typical Operating Characteristics (continued)
(T
A
= +25
°
C, unless otherwise noted.)
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相關代理商/技術參數(shù) |
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|---|---|
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| MAX1895EGI-T | 功能描述:顯示驅動器和控制器 RoHS:否 制造商:Panasonic Electronic Components 工作電源電壓:2.7 V to 5.5 V 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Reel |
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