LTC1479 View Datasheet(PDF) - Linear Technology
Part Name
Description
MFG CO.
'LTC1479' PDF : 24 Pages View PDF
TYPICAL APPLICATIONS N
Dual NiMH Battery Power Management System (Using an LT1510, 1A Charger)
LTC1479
BAT1
12-CELL
NiMH
BATTERY
PACK
BAT2
12-CELL
NiMH
BATTERY
PACK
330Ω
0.1µF
Si4936DY
SW A SW B
Si4936DY
SW C SW D
Si4936DY
SW E SW F
RSENSE
0.033Ω
5VCC
FROM
DC/DC
RDC2
205k
1%
RDC1
12.1k
1%
RB2
909k
1%
RB1
121k
1%
DCIN
DCDIV
GA SAB GB
GC SCD GD
GE SEF GF
SENSE + SENSE –
VBKUP
BAT1
BAT2
VBAT
BDIV
LTC1479
C1
0.1µF
+
VCCP
VCC
GND V + SW VGG
BATSEL
CHGSEL
DCINGOOD
3DM
GG SG GH SH BATDIS DCIN/BAT CHGMON LOBAT
L1*
1mH
C2
+ C3 + C4
2.2µF
1µF
1µF
16V
50V
50V
RCM2
909k
1%
RCM1
100k
1%
(BOLD LINES INDICATE HIGH CURRENT PATHS)
ROHM
DTA144E
R8
10k
L2** D1
10µH MBR0530
TO INPUT
OF DC/DC
CONVERTER
NiCD +
CELL
C5
0.1µF
Q2
2N7002
D5
BAS16LT1
R7
470k
4
2
SW
8
LBO
FB
LT1304
SHDN
7
1
LBI
3
VIN
ILIM GND
6
C10 R1
0.1µF 22k
5
C11
0.1µF
R2
390k
1%
R3
100k
1%
5VCC
FROM
DC/DC
100k
(BACKUP)
VCC
POWER
MANAGEMENT
µP
RTH1
RTH2
SMBUS
RTH1
CBAT1
10µF
SW G
Si9926DY
RTH1
CBAT2
10µF
SW H
Si9926DY
C6
10µF
CERAMIC
RPROG
11k
1%
R4
100k
1%
R5
300Ω
Q1
2N7002
C8
1µF
7
6
R6
1k
C9
0.1µF
3
D2
MBRS140T
8
VCC SW 1
PROG
2
VC BOOST
LT1510
4
GND SENSE
BAT
+ CDCIN
10µF
35V
ALUM
DC INPUT
(FROM AC
ADAPTOR)
C7
0.22µF
D4
MBRS140T
D3
1N4148
L3***
33µH
5
(CHARGER OUTPUT)
*1812LS-105 XKBC, COILCRAFT
**CD43, SUMIDA
***CTX33-2, COILTRONICS
CCHG
22µF
TANT
1479 TA02
21
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