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LTC4007 Datasheet(PDF) 21 Page - Linear Technology

Part # LTC4007
Description  4A, High Effi ciency, Standalone Li-Ion Battery Charger
PDF  24 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC4007 Datasheet(HTML) 21 Page - Linear Technology

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LTC4007
21
4007fc
APPLICATIONS INFORMATION
3C4C
CHEM
LOBAT
ICL
ACP
SHDN
FAULT
CHG
FLAG
NTC
RT
LOBAT
ICL
ACP
SHDN
FAULT
CHG
FLAG
DCIN
INFET
CLP
CLN
TGATE
BGATE
PGND
CSP
BAT
PROG
ITH
GND
LTC4007
R9 32.4k 1%
RT
309k
1%
C7
0.47μF
THERMISTOR
TIMING RESISTOR
(~2 HOURS)
R12
100k
R11
100k
R10
100k
VLOGIC
*
*
DCIN
0V TO 20V
3A
C1
0.1μF
Q3
INPUT SWITCH
C4
15nF
Q1
Q2
D1
C2
20μF
L1
15μH 3A
R1
4.99k
1%
R4
3.01k
1%
R5 3.01k 1%
RSENSE
0.033Ω
1%
RCL
0.033Ω
1%
C3
20μF
*PIN OPEN
D1: MBRM140T3
Q1: Si4431ADY
Q2: FDC645N
Q4: 2N7002 OR BSS138
BAT
MONITOR
(CHARGING
CURRENT
MONITOR)
SYSTEM
LOAD
C6
0.12μF
R7
6.04k
1%
R14
52.3k
1%
C5
0.0047μF
4007 F11
R6
26.7k
1%
Q4
Figure 11. Circuit Application (16.8V/3A) to Automatically Trickle Charge Depleted Batteries



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