参数资料
型号: MAX1926ETC+
厂商: Maxim Integrated Products
文件页数: 4/16页
文件大小: 0K
描述: IC CHARGER LI+ 12-TQFN
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 75
功能: 充电管理
电池化学: 锂离子(Li-Ion)、锂聚合物(Li-Pol)
电源电压: 4.5 V ~ 12 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 12-WQFN 裸露焊盘
供应商设备封装: 12-TQFN-EP(4x4)
包装: 管件
Switch-Mode 1-Cell Li+ Chargers
ELECTRICAL CHARACTERISTICS
(V PGND = V GND = 0, V INP = V IN = V CHG = 5V, V BATT = V CS = V EN = 4V, THRM = 10k ? to GND, C CT = 100nF, T A = -40 ° C to +85 ° C ,
unless otherwise noted. Typical values are at T A = +25 ° C.) (Note 4)
PARAMETER
Supply Voltage Range
CONDITIONS
V INP , V IN (MAX1925 does not charge above 6.1V)
MIN
4.5
TYP
MAX
12.0
UNITS
V
ACON Trip point
INP, IN Shutdown Threshold
V INP , V IN rising
V INP , V IN falling
MAX1925
MAX1925
MAX1926
MAX1925
MAX1926
Rising
Falling
4.30
4.0
4.17
3.9
5.8
5.3
4.78
4.5
4.43
4.4
6.4
5.9
V
V
EN Input Resistance
EN Leakage Current
MAX1926 internally pulled up to 3V
MAX1925
125
-1
550
+1
k ?
μA
EN Logic Input High Threshold
EN Logic Input Low Threshold
2
0.8
V
V
BATT + CS Input Current
(Total Current into BATT and CS)
IN + INP Total Input Current
DONE State, V BATT = 4.1V
EN = GND (Note 2)
V BATT = V INP = V IN = 4V, shutdown (Note 1)
EN = GND
V BATT = V INP = V IN = 4V, shutdown
V BATT = 4.1V, charging
V BATT = 4.3V, done
50
10
10
8
10
10
8
μA
mA
μA
mA
VOLTAGE LOOP
Voltage Loop Set Point
BATT Prequal1 Voltage Threshold
BATT Prequal2 Voltage Threshold
4.158
1.9
2.85
4.242
2.1
3.15
V
V
V
Restart Threshold
BATT Voltage Fault Threshold
Charging restarts when BATT falls to this point
If BATT exceeds this threshold, EXT is high (external
MOSFET is off) and CHG blinks
3.92
4.275
4.08
4.425
V
V
CURRENT LOOP
CS - BATT Sense Threshold
Prequal1 Charge Current
Current Threshold for Full-Battery
Indication
V CS - V BATT , average value
V BATT < 2V
I LOAD falling, as percentage of fast charge current
127
3
4
157
6
20
mV
mA
%
DRIVER FUNCTIONS
EXT On-Resistance
EXT high or low
12
?
TIMER FUNCTIONS
Timer Accuracy
CHG Output Low Current
C CT = 100nF for 3 hours
V CHG = 1V
-16
7
+16
14
%
mA
4
_______________________________________________________________________________________
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MAX1926ETC+T 功能描述:电池管理 Switch-Mode 1-Cell Li+ Charger RoHS:否 制造商:Texas Instruments 电池类型:Li-Ion 输出电压:5 V 输出电流:4.5 A 工作电源电压:3.9 V to 17 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:VQFN-24 封装:Reel
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