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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)： | 2/16頁 |
| 文件大?。?/td> | 308K |
| 代理商： | MAX1894-MAX1924 |
M
Advanced Li+ Battery-Pack Protectors
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
SRC, IC2, IC3, V
CC
to BN.......................................-0.3V to +28V
IC1 to BN..................................................................-0.3V to +6V
DSO
,
TKO
,
CGO
to BN.............................-0.3V to (V
SRC
+ 0.3V)
B4P to B3P ...............................................................-0.3V to +6V
B3P to B2P ...............................................................-0.3V to +6V
B2P to B1P ...............................................................-0.3V to +6V
B1P to BN.................................................................-0.3V to +6V
CTL, SHDN to PKN...................................................-0.3V to +6V
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
PKN to BN ...................................................................-2V to +2V
ESD Protection on All Pins...............................................±2000V
Continuous Power Dissipation (T
A
= +70°C)
16-Pin QSOP (derate 8.3mW/°C above +70°C)...........667mW
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature......................................................+150°C
Storage Temperature Range.............................-65°C to +150°C
Lead Temperature (soldering, 10s).................................+300°C
ELECTRICAL CHARACTERISTICS
(V
SRC
= V
B4P
+ 0.1V, each battery cell voltage (V
CELL
) = 3.6V, V
CTL
= V
SHDN
= V
PKN
,
T
A
= 0°C to +85°C
, unless otherwise noted.
Typical values are at T
A
= +25°C.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
20
30
0.8
MAX
40
45
2
UNITS
μA
μA
μA
SRC Input Current
Supply Current (Note 1)
Shutdown Supply Current
Top Cell Sampling Current
(Note 2)
V
SRC
- V
B_P
= 1V
No faults
Undervoltage without charge source
I
SUP
I
SHDN
V
CELL
= 3.6V
60
μA
Intermediate Cell Input Bias
Current (Note 3)
V
CC
Undervoltage Lockout
Threshold
Charge-Mode Detection
Threshold
V
CELL
= 3.6V
500
pA
Rising edge, hysteresis = 1% falling edge
4.5
V
V
SRC
- V
B4P
25
100
mV
MAX1894X cell voltage rising
MAX1924X, MAX1924V cell voltage rising
4.225
4.325
4.250
4.350
4.275
4.375
Overvoltage Threshold (Note 4)
V
OV_TH
V
Overvoltage Threshold
Hysteresis
Undervoltage Threshold (Note 4)
PKN to BN Discharge Current
Fault Threshold
PKN to BN Charge Current
Fault Threshold
PKN to BN Discharge Current
Fault Threshold, Pack-Short
Condition
Discharge or Charge Current
Fault to
DSO
,
CGO
,
TKO
Transition Delay Time
Discharge Current Fault to
DSO
Transition Time Delay for Pack-
Short Condition
V
OV_HYT
MAX1924X, MAX1924V cell voltage falling
200
mV
V
UV_TH
Cell voltage falling
2.260
2.300
2.340
V
V
OD_TH
130
145
160
mV
V
OC_TH
-120
-100
-80
mV
V
PS_TH
385
405
425
mV
t
I-DELAY
2.5
3
3.5
ms
t
P-DELAY
400
450
500
μs
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