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LTC4002ES8-4.2 Datasheet(PDF) 3 Page - Linear Technology

Part # LTC4002ES8-4.2
Description  Standalone Li-Ion Switch Mode Battery Charger
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC4002ES8-4.2 Datasheet(HTML) 3 Page - Linear Technology

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LTC4002-4.2
3
400242i
ELECTRICAL CHARACTERISTICS The q denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VCC = 10V unless otherwise noted.
Note 1: Absolute Maximum Rating are those values beyond which the life
of a device may be impaired.
TYPICAL PERFOR A CE CHARACTERISTICS
Supply Current vs Temperature
Supply Current vs VCC
Oscillator Frequency
vs Temperature
Note 2: The LTC4002-4.2 is tested with Test Circuit 1.
Note 3: The LTC4002-4.2 is tested with Test Circuit 2.
TEMPERATURE (
°C)
–50
3.5
4.0
25
75
400242 G01
3.0
–25
0
50
100
125
2.5
VCC (V)
5
3
25
400242 G02
2
10
15
20
4
CURRENT MODE
TEMPERATURE (
°C)
–50
25
400242 G03
500
–25
0
50
450
550
75
100
125
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
INTC
NTC Pin Output Current
VNTC = 0.85V
q
75
85
95
µA
VNTC-HOT
NTC Pin Threshold Voltage (Hot)
VNTC Falling
q
340
355
370
mV
Hysteresis
25
mV
VNTC-COLD NTC Pin Threshold Voltage (Cold)
VNTC Rising
q
2.428
2.465
2.502
V
Hysteresis
170
mV
∆VRECHRG Recharge Battery Voltage Offset from Full
VBAT(FULLCHARGED) – VRECHRG, VBAT Falling
100
150
200
mV
Charged Battery Voltage
ILEAK
CHRG Pin Leakage Current
VCHRG = 8V, Charging Stops
1
µA
Oscillator
fOSC
Switching Frequency
450
500
550
kHz
DC
Maximum Duty Cycle
100
%
Gate Drive
tr
Rise Time
CGATE = 2000pF, 10% to 90%
20
ns
tf
Fall Time
CGATE = 2000pF, 90% to 10%
50
ns
∆VGATE
Output Clamp Voltage
VCC – VGATE, VCC ≥ 9V
q
8V
∆VGATEHI Output High Voltage
∆VGATEHI = VCC – VGATE, VCC ≥ 7V
q
0.3
V
∆VGATELO Output Low Voltage
∆VGATELO = VCC – VGATE, VCC ≥ 7V
q
4.5
V
TA = 25°C, VCC = 10V unless otherwise noted.


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