參數(shù)資料
型號(hào): LTC1479
廠商: Linear Technology Corporation
英文描述: PowerPath Controller for Dual Battery Systems(雙電池系統(tǒng)電源通路控制器)
中文描述: PowerPath控制器的雙電池系統(tǒng)(雙電池系統(tǒng)電源通路控制器)
文件頁數(shù): 17/24頁
文件大?。?/td> 374K
代理商: LTC1479
17
LTC1479
APPLICATIO
S I
FOR
ATIO
U
the charging battery through one of the N-channel switch
pairs, SW G or SW H. The charging battery voltage is
simultaneously connected through the CHGMON switch
in the LTC1479 to the top of the charger voltage resistor
divider, R4 and R5, for constant voltage charging. (See the
LT1510 data sheet for further detail.)
W
U
U
LT1511 Battery Charger Interface
The LT1511, 3A CC/CV battery charger with input current
limiting, is connected in a slightly different manner than
the LT1510 as illustrated in Figure 11.
Figure 11. Interfacing to the LT1511 Constant-Voltage/Constant-Current Battery Charger with Input Current Limiting
1479 F11
SW H
Si9926DY
SW G
Si9926DY
BAT1
4 Li-ION
BATTERY
PACK
BAT2
4 Li-ION
BATTERY
PACK
+
+
C
BAT1
47
F
C
BAT2
47
μ
F
DC INPUT
(FROM AC
ADAPTOR)
V
CC
D1
MBRS340T
R1
500
C2
0.33
μ
F
C1
1
μ
F
PROG
V
C
R
4.93k
1%
R
S4
0.05
C3
200pF
SW
UV
BOOST
COMP1
SPIN
BAT
SENSE
GND
C6
0.47
μ
F
C7
50pF
C12
1
μ
F
C5
10
μ
F
D3
MBR0540T
L1
20
μ
H
D2
MBRS340T
LT1511
C4
10
μ
F
CERAMIC
0.1
μ
F
330
+
C
CHG
22
F
TANT
+
(CHARGER OUTPUT)
Q1
2N7002
R2
1k
CURRENT CONTROL
FROM POWER
MANAGEMENT
μ
P
+
R6
649k
0.25%
R5
6.8k
R4
5k
R3
500
R7
115k
0.25%
R
S3
200
1%
R
S2
200
1%
R
S1
0.033
OVP
CLP
CLN
TO SW C/D
TO SW E/F
TO
SW A/B
+
POWER
MANAGEMENT
μ
P
BAT1
BAT2
GG SG GH SH
CHGMON
DCIN
LTC1479
1479 F10
SW H
Si9926DY
SW G
Si9926DY
BAT1
4 Li-ION
BATTERY
PACK
BAT2
4 Li-ION
BATTERY
PACK
+
+
C
BAT1
47
μ
F
C
BAT2
47
μ
F
DC INPUT
(FROM AC
ADAPTOR)
V
CC
D1
MBRS140T
R2
300
C1
1
μ
F
PROG
V
C
R
PROG
11k
1%
R3
1k
C2
0.1
μ
F
SW
BOOST
SENSE
BAT
GND
C3
0.22
μ
F
0.1
μ
F
D3
1N4148
L1*
33
μ
H
D2
MBRS140T
LT1510
C6
10
μ
F
CERAMIC
+
C
CHG
22
F
TANT
(CHARGER OUTPUT)
Q1
2N7002
R1
100k
1%
CURRENT CONTROL
FROM POWER
MANAGEMENT
μ
P
+
R4
649k
0.25%
R5
115k
0.25%
OVP
*COILTRONICS CTX33-2
TO SW C/D
TO SW E/F
TO
SW A/B
330
+
POWER
MANAGEMENT
μ
P
BAT1
BAT2 GG SG GH SH
CHGMON
DCIN
LTC1479
Figure 10. Interfacing to the LT1510 Constant-Voltage/Constant-Current Battery Charger
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