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参数资料
型号： LT3651EUHE-4.2#PBF
厂商： LINEAR TECHNOLOGY CORP
元件分类： 稳压器
英文描述： BATTERY CHARGE CONTROLLER, 1100 kHz SWITCHING FREQ-MAX, PQCC36
封装： 5 X 6 MM, 0.75 MM HEIGHT, LEAD FREE, PLASTIC, QFN-36
文件页数： 16/22页
文件大小： 213K
代理商： LT3651EUHE-4.2#PBF
LT3651-4.1/LT3651-4.2
3
365142fb
ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operating
junction temperature range, otherwise specifications are at TA = 25°C (Note 2). VIN = 20V, SHDN = 2V, SENSE = BAT = VBAT(FLT),
CTIMER = 0.68μF, RT = 50k, CLP = CLN = VIN, BOOST – SW = 4V.
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
VIN Operating Range
l
4.8
32
V
VIN OVLO Threshold
VIN Rising
l
32
35
40
V
VIN OVLO Hysteresis
1.1
V
VIN UVLO Threshold
VIN Rising
l
4.6
4.8
V
VIN UVLO Hysteresis
0.2
V
Battery Float Voltage, VBAT(FLT)
LT3651-4.1
l
4.08
4.06
4.1
4.12
4.14
V
LT3651-4.2
l
4.18
4.16
4.2
4.22
4.24
V
Battery Recharge Voltage Hysteresis
Threshold Voltage Relative to VBAT(FLT)
–105
mV
Battery Precondition Threshold Voltage, VBAT(PRE)
LT3651-4.1 VBAT Rising
LT3651-4.2 VBAT Rising
2.83
2.9
V
Battery Precondition Threshold Hysteresis
Threshold Voltage Relative to VBAT(PRE)
70
mV
Operating VIN Supply Current
CC/CV Mode, Top Switch On, ISW = 0
Standby Mode
Shutdown (SHDN = 0)
8.6
80
17
mA
μA
Top Switch On Voltage
VIN – VSW, ISW = 4A
480
mV
Bottom Switch On Voltage
VSW, ISW = 4A
–140
mV
BOOST Supply Current
Switch High, ISW = 0, 2.5 < (VBOOST – VSW) < 4.5
40
mA
BOOST Switch Drive
IBOOST/ISW, ISW = 4A
25
mA/A
Precondition Current Sense Voltage
VSENSE – VBAT, VBAT = 2.5
14
mV
Input Current Limit Voltage
VCLP – VCLN, ILIM Open
l
70
95
115
mV
CLP Input Bias Current
120
nA
CLN Input Bias Current
36
μA
ILIM Bias Current
l
43
50
57
μA
System Current Limit Programming Gain
VILIM/(VCLP – VCLN), VILIM = 0.5V
11.5
V/V
Maximum Charge Current Sense Voltage
VSENSE – VBAT, VBAT = 3.5, VRNG/SS > 1.1V
l
88
95
103
mV
C/10 Trigger Sense Voltage
VSENSE – VBAT
l
5.0
8.6
12.3
mV
BAT Input Bias Current
Charging Terminated
0.1
1
μA
SENSE Input Bias Current
Charging Terminated
0.1
1
μA
RNG/SS Bias Current
l
44
50
56
μA
Charge Current Limit Programming Gain
VRNG/SS/(VSENSE – VBAT), VRNG/SS = 0.5V
l
8.5
10.8
12.5
V/V
NTC Range Limit (High)
VNTC Rising
l
1.25
1.36
1.45
V
NTC Range Limit (Low)
VNTC Falling
l
0.27
0.29
0.31
V
NTC Threshold Hysteresis
% of Threshold
10
%
NTC Disable Impedance
Minimum External Impedance to GND
l
150
470
kΩ
NTC Bias Current
VNTC = 0.75V
l
46.5
50
53.5
μA
Shutdown Threshold
VSHDN Rising
l
1.16
1.20
1.23
V
Shutdown Hysteresis
95
mV
SHDN Input Bias Current
–10
nA
Status Low Voltage
VCHRG, VFAULT, VACPR, Load = 10mA
l
0.45
V
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