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LTC4054L Datasheet(PDF) 3 Page - Linear Integrated Systems

Part # LTC4054L
Description  Standalone 250mA Li-Ion Battery Charger in 2 횞 2 DFN
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Manufacturer  LINEAR [Linear Integrated Systems]
Direct Link  http://www.linearsystems.com
Logo LINEAR - Linear Integrated Systems

LTC4054L Datasheet(HTML) 3 Page - Linear Integrated Systems

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LTC4065L/
LTC4065LX/LTC4065L-4.1
3
4065lfb
ELECTRICAL CHARACTERISTICS The l denotes specifications which apply over the full operating
temperature range, otherwise specifications are TA = 25°C. VCC = 5V, VBAT = 3.8V, VEN = 0V unless otherwise specified. (Note 2)
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
VCC
VCC Supply Voltage
(Note 4)
l
3.75
5.5
V
ICC
Quiescent VCC Supply Current
VBAT = 4.5V (Forces IBAT and IPROG = 0)
l
120
250
μA
ICCMS
VCC Supply Current in Shutdown
VEN = 5V
l
20
40
μA
ICCUV
VCC Supply Current in Undervoltage
Lockout
VCC < VBAT, VCC = 3.5V, VBAT = 4V
l
611
μA
VFLOAT
VBAT Regulated Output Voltage
IBAT = 2mA
IBAT = 2mA, 0°C < TA < 85°C
IBAT = 2mA (LTC4065L-4.1)
IBAT = 2mA, 0°C < TA < 85°C (LTC4065L-4.1)
4.175
4.158
4.075
4.058
4.2
4.2
4.1
4.1
4.225
4.242
4.125
4.142
V
V
V
V
IBAT
BAT Pin Current
RPROG = 13.3k (0.1%), Current Mode
RPROG = 1.33k (0.1%), Current Mode
l
l
13.5
148
15.5
155
17.5
162
mA
mA
IBMS
Battery Drain Current in Shutdown
Mode
VEN = VCC
l
–1
0
1
μA
IBUV
Battery Drain Current in Undervoltage
Lockout
VCC = 3.5V, VBAT = 4V
l
014
μA
VUVLO
VCC Undervoltage Lockout Voltage
VCC Rising
VCC Falling
l
l
3.4
2.8
3.6
3.0
3.8
3.2
V
V
VPROG
PROG Pin Voltage
RPROG = 1.33k, IPROG = 0.75mA
RPROG = 13.3k, IPROG = 75μA
l
l
0.98
0.98
1
1
1.02
1.02
V
V
VASD
Automatic Shutdown Threshold Voltage (VCC – VBAT), VCC Low to High
(VCC – VBAT), VCC High to Low
60
15
80
30
100
45
mV
mV
VMSH
Manual Shutdown High Voltage
VEN Rising
1
V
VMSL
Manual Shutdown Low Voltage
VEN Falling
0.6
V
REN
EN Pin Input Resistance
l
0.9
1.5
3.3
tSS
Soft-Start Time
170
μs
ITRKL
Trickle Charge Current
VBAT = 2V, RPROG = 1.33k (0.1%) (Note 7)
13
15.5
18
mA
VTRKL
Trickle Charge Threshold Voltage
VBAT Rising (Note 7)
l
2.7
2.9
3.05
V
VTRHYS
Trickle Charge Hysteresis Voltage
(Note 7)
90
mV
ΔVRECHRG Recharge Battery Threshold Voltage
VFLOAT – VRECHRG, 0°C < TA < 85°C
70
100
130
mV
ΔVUVCL1
ΔVUVCL2
(VCC – VBAT) Undervoltage Current
Limit
IBAT = 90%, RPROG = 2k, Programmed Charge Current
IBAT = 10%, RPROG = 2k, Programmed Charge Current
150
80
190
125
300
150
mV
mV
tTIMER
Termination Timer
l
3
4.5
6
Hrs
Recharge Time
l
1.5
2.25
3
Hrs
Low-Battery Trickle Charge Time
VBAT = 2.5V
l
0.75
1.125
1.5
Hrs
VCHRG
CHRG Pin Output Low Voltage
ICHRG = 5mA
l
60
105
mV


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