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LTC1980 Datasheet(PDF) 14 Page - Linear Technology

Part # LTC1980
Description  Combination Battery Charger and DC/DC Converter
PDF  16 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC1980 Datasheet(HTML) 14 Page - Linear Technology

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LTC1980
14
1980f
TYPICAL APPLICATIO
Figure 5. 4.1V/1A Li-Ion Battery Charger and 3.3V DC/DC Converter
BGTDR PGND
GND
ISENSE RGTDR
VREG LDODRV LDQFB
WA
+
12
4
17
24
13
19
18
23
3
22
15
16
9
10
VBAT
OVP
REGFB
CAOUT
REG
MODE
BATT1
BATT2
LTC1980
PROG
PROGT
VC
TIMER
SS
VBIAS1
VBIAS2
R9
10k
R10
110k
R13
806k
R8
169k
R12
100k
R11
1M
C12
82pF
C7
0.27µF
C8
0.1µF
C9
1µF
C10
1µF
200pF
R14
100k
14
12
20
21
11
7
6
5
8
4.1V
Li-Ion
BATTERY
+
C1
68µF
1nF
5.1Ω
1nF
5.1Ω
1/2 FDC6401N
1/2 FDC6401N
+
C4
68µF
50mΩ
RSENSE
SYSTEM LOAD
DC/DC
CONVERTERS
WALL
ADAPTER
R5
154k
R6
100k
R15
300k
R7
100k
C6
470µF
DCOUT
D1*
IN5819
ACIN
VOUT
*OPTIONAL DIODE FOR
SHORTED WALL ADAPTER
TERMINAL PROTECTION
BH511-1014
C11
1nF
VBAT
VREG
3.3V
1980 F05
OPTIONAL
PASS TRANSISTOR
FOR LDO FDC636P
VLDO 3.1V



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