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LTC4012 Datasheet(PDF) 26 Page - Linear Technology

Part # LTC4012
Description  High Effi ciency, Multi-Chemistry Battery Charger with PowerPath Control
PDF  28 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC4012 Datasheet(HTML) 26 Page - Linear Technology

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LTC4012/
LTC4012-1/LTC4012-2
26
4012f
TYPICAL APPLICATION
12.6V 4 Amp Charger
CLP
FROM
ADAPTER
15V AT 4A
BULK
CHARGE
C4
0.1μF
R8
5.1k
R14
100k
Q5
R15
0Ω*
D1
7
42
3
1
20
19
18
D3
17
16
21
15
14
11
10
Q1
9
R12
294k
C10
10pF
5
8
12
13
6
R7
25mΩ
R9 3.01k
C5
0.1μF
C6
2μF
Q2
Q3
D4
L1
4.7μH
R11
25mΩ
12.6V
Li-Ion
BATTERY
DCIN
CHRG
C2
0.1μF
R1
3k
R
R4
6.04k
R5
26.7k
R6
53.6k
LTC4012
ACP
ICL
SHDN
ITH
PROG
CLN
BOOST
INFET
TGATE
SW
INTVDD
BGATE
TO/FROM
MCU
GND
CSP
CSN
BAT
FBDIV
VFB
C8
10μF
POWER TO SYSTEM
TO POWER SYSTEM LOAD
WHEN ADAPTER IS NOT
PRESENT, USE
SCHOTTKY DIODE D5 OR
THE COMBINATION OF R14,
D6 AND Q4
D6
18V
ZENER
C1
0.1μF
C3
4.7nF
C9
10μF
R10 3.01k
R13
31.2k
4012 TA03
D3: CMDSH-3
D4: MBR230LSFT1
Q1: 2N7002
Q2, Q3: Si7212DN OR SiA914DJ
OR Si4816BDY (OMIT D4)
Q4, Q5: Si7423DN
L1: 1HLP-2525CZER4R7M11
*: SEE TGATE BOOST SUPPLY IN
APPLICATIONS INFORMATION
+
D5
Q4
OR



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