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参数资料
| 型号： | MAX1906XEGE |
| 厂商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分类： | 电源管理 |
| 英文描述： | Li+ Battery-Pack Protector with Integrated Fuse Driver |
| 中文描述： | 4-CHANNEL POWER SUPPLY SUPPORT CKT, CQCC16 |
| 封装： | 5 X 5 MM, 0.90 MM HEIGHT, QFN-16 |
| 文件页数： | 8/14页 |
| 文件大小： | 325K |
| 代理商： | MAX1906XEGE |
M
Modes of Operation
Normal Operating Mode
The MAX1906 operates in normal mode when at least 1
cell voltage is above the standby-mode threshold. In this
mode, the average supply current from the top cell is
8μA (max). The MAX1906 works by sampling cell volt-
ages for 0.8ms and then goes into an idle state for 2.56s
to complete a cycle. During the sampling period, the
MAX1906 typically consumes 300μA. In the idle state,
the MAX1906 typically consumes 3.2μA. Figure 6 shows
the device current consumption in different states.
Standby Mode
When all the cell voltages are below the standby-mode
threshold, the MAX1906 goes into the standby mode. In
this mode, the device draws 1μA (max) from the top
cell. Once any cell voltage goes above the standby-
mode threshold, the MAX1906 wakes up and goes into
the normal mode.
Test Mode
The test mode is designed to verify the overvoltage
detection function in a fully assembled battery pack with-
out blowing the three-terminal protection fuse. Test mode
is invoked by a pulse with minimum duration of 50μs on
the TEST pin. The MAX1906 changes the overvoltage
threshold from 4.45V to 2.225V in the test mode and
samples each of the cell voltages. Individual cell volt-
ages are expected to be above 2.225V during the test
mode. If the MAX1906 detects overvoltage condition on
all cells during one sampling period, the DRV pin goes
Li+ Battery-Pack Protector with
Integrated Fuse Driver
8
_______________________________________________________________________________________
MAX1906X
VCC
THREE-TERMINAL
PROTECTION FUSE
PACK+
PACK-
7
4
2
3
5
16
14
12
10
8
B4P
B3P
B2P
B1P
BN
OUT
DISCON
DISCON
DRV
TEST
TEST
DISCON
TEST
PKN
MAX1924X
15
14
13
1
2
3
5
7
9
16
SRC
12
11
10
SHDN
MICRO-
CONTROLLER
CTL
DSO
CGO
TKO
PKN
GND
B4P
D1
V
CC
VDD
BN
B3P
B2P
B1P
BN
R5
100k
R4
51
R10
10
R
TKO
510
OVERDISCHARGE
PROTECTION
TRICKLE
CHARGE
BSS84
R3
1k
R9
10
R8
1k
R7
1k
R6
1k
R2
1k
R1
1k
C4
1.0
μ
F
C5
0.1
μ
F
C3
0.1
μ
F
C2
0.1
μ
F
C1
0.1
μ
F
R
SENSE
SFD-145B
Si4435DY
OVERCHARGE
PROTECTION
Si4435DY
CMPSH-3
C9
0.1
μ
F
C6
2.2
μ
F
C8
0.1
μ
F
C7
0.1
μ
F
C6
0.1
μ
F
Figure 5. Typical Application Circuit
—
Using the MAX1906 with a MAX1924 Protection Circuit
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| MAX1906V | Li+ Battery-Pack Protector with Integrated Fuse Driver |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX1907AETL | 制造商:Maxim Integrated Products 功能描述:#EMPTY - Rail/Tube |
| MAX1907AETL+ | 制造商:Maxim Integrated Products 功能描述:#EMPTY - Rail/Tube |
| MAX1907AETL+T | 制造商:Maxim Integrated Products 功能描述:#EMPTY - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IMVP - VOLT REG |
| MAX1907AETL-T | 制造商:Maxim Integrated Products 功能描述:#EMPTY - Tape and Reel |
| MAX1907EVKIT | 制造商:Maxim Integrated Products 功能描述:NDA INTEGRATED CIRCUIT - Rail/Tube |
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