LTC1479IG View Datasheet(PDF) - Linear Technology
Part Name
Description
MFG CO.
'LTC1479IG' PDF : 24 Pages View PDF
APPLICATIONS INFORMATION
POWER
MANAGEMENT
µP
BAT1
CHGMON
LTC1479
BAT2 GG SG GH SH DCIN
BAT1
4 Li-ION
BATTERY
PACK
TO SW C/D
TO SW E/F
+
+
CBAT1
10µF
SW G
–
Si9926DY
+
BAT2
4 Li-ION
BATTERY
PACK –
+ CBAT2
10µF
SW H
Si9926DY
330Ω
0.1µF
TO
W A/B
C1
100pF
R1
1M
0.1%
R2
76.8k
0.1%
LTC1479
DC INPUT
(FROM AC
ADAPTER)
SHDN
C2
100pF
C3
0.1µF
C4
0.033µF
R5, 1k
1
SENSE
8
AVG
2
IOUT
7
PROG
3
LT1620
6
GND
VCC
4
5
NIN
PIN
IPROG
C5
0.01µF
R5
1.5M
C11
56pF
1 COSC
TG 16
2 RUN/SS BOOST 15
3
14
4
ITH LTC1435 SW
SFB
VIN
13
5 SGND INTVCC 12
6 VOSENSE
C9, 100pF 7 SENSE –
C10
100pF
8 SENSE +
BG 11
10
PGND
VCC 9
C6
0.1µF
C7
0.33µF
C8
0.1µF
C12
0.1µF
D2*
C13
CMDSH-3 0.33µF D1*
CMDSH-3
C14
4.7µF
+
R3
10k
1%
*CENTRAL SEMICONDUCTOR CO. (516) 435-1110
+ C15
22µF
Q1
Si4412DY
35V
×2
L1
27µH
Q2
Si4412DY
R4
0.025Ω
+ C16
22µF
35V
1479 F12
Figure 12. Interfacing to an LT1620/LTC1435 High Efficiency Constant-Voltage/Constant-Current Battery Charger
19
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