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LTC4012CUF-3-PBF Datasheet(PDF) 5 Page - Linear Technology

Part # LTC4012CUF-3-PBF
Description  High Efficiency, Multi-Chemistry Battery Charger with PowerPath Control
Download  28 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC4012CUF-3-PBF Datasheet(HTML) 5 Page - Linear Technology

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40123fb
LTC4012-3
Battery Load Dump
LOAD
STATE
TIME (1ms/DIV)
CLP = 20V
VOUT = 12.3V
4012-3 G06
DISCONNECT
RECONNECT
3A
2A
12.1V
1A
1A
Typical perForMance characTerisTics
Efficiency at DCIN = 20V, BAT = 8V
VFB Line Regulation
CHARGE CURRENT (A)
0
80
85
90
100
100
1000
10000
0.5
1
1.5
2
4012-3 G01
2.5
3
95
POWER LOSS
EFFICIENCY
RSENSE = 33m
RIN = 3.01k
Efficiency at DCIN = 20V, BAT = 12V
CHARGE CURRENT (A)
0
80
85
90
100
100
1000
10000
0.5
1
1.5
2
4012-3 G02
2.5
3
95
EFFICIENCY
POWER LOSS
RSENSE = 33m
RIN = 3.01k
Efficiency at DCIN = 20V, BAT = 16V
CHARGE CURRENT (A)
0
80
85
90
100
100
1000
10000
0.5
1
1.5
2
4012-3 G03
2.5
3
95
EFFICIENCY
POWER LOSS
RSENSE = 33m
RIN = 3.01k
CLP (V)
5
0.02
0.06
0.10
25
4012-3 G04
–0.02
–0.06
0
0.04
0.08
–0.04
–0.08
–0.10
10
15
20
30
LTC4012-3 TEST CIRCUIT
BAT (V)
0
75
100
150
175
200
10
20
25
300
4012-3 G05
125
5
15
225
250
275
CLP = BAT + 3V
(CLP ≥ 6V)
FBDIV Pin RON vs Battery Voltage
(TA = 25°C unless otherwise noted. L = IHLP-2525 6.8µH)


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