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LTC4012IUF-3-PBF Datasheet(PDF) 7 Page - Linear Technology

Part # LTC4012IUF-3-PBF
Description  High Efficiency, Multi-Chemistry Battery Charger with PowerPath Control
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC4012IUF-3-PBF Datasheet(HTML) 7 Page - Linear Technology

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40123fb
LTC4012-3
Typical perForMance characTerisTics
PWM Frequency vs Duty Cycle
Battery Shutdown Current
DUTY CYCLE (%)
0
0
100
200
300
400
500
600
20
40
60
80
4012-3 G13
100
CLP = 6V
CLP = 12V
CLP = 20V
CLP = 25V
ICHG = 750mA
PWM Frequency
vs Charge Current
CHARGE CURRENT (A)
0
0
100
200
300
400
600
0.5
1.0
1.5
2.0
4012-3 G14
2.5
3.0
500
BAT = 14.5V
BAT = 12V
BAT = 5V
CLP = 15V
RSENSE = 33m
RIN = 3.01k
BATTERY VOLTAGE (V)
0
0
5
10
15
25
5
10
15
4012-3 G15
20
25
20
LTC4012-3,
BAT PINS
DCIN = 20V
LTC4012-3,
ALL PINS
DCIN = 0V
DC1256-CLASS
APPLICATION
DCIN = 0V
(TA = 25°C unless otherwise noted. L = IHLP-2525 6.8µH)
INFET Response Time to
DCIN Short to Ground
0A
VGS = 0V
TIME (1µs/DIV)
DCIN = 15V
INFET = Si7423DN
IOUT = <50mA
VOUT = 12.3V
COUT = 0.27F
4012-3 G16
PFET VGS (1V/DIV)
IDCIN, REVERSE
(5A/DIV)


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