Datasheet

LTC3350
40
3350fc
For more information www.linear.com/LTC3350
Application Circuit 2. 11V to 20V, 16A Supercapacitor Charger with 6.4A Input Current Limit and 10V, 60W Backup Mode
V
IN
V
DD
V
IN
11V TO 20V
INFET
MN1
SiR422DP
MN2
BSC026N02KS
L1
2.2µH
R
SNSC
0.002Ω
R
CAP1
2.7Ω
R
CAP2
2.7Ω
R
CAP3
2.7Ω
R
CAP4
2.7Ω
R
CAPRTN
2.7Ω
MN3
BSC046N02KS ×2
R
SNSI
0.005Ω
VOUTM5VOUTSP
LTC3350
VOUTSN OUTFET
OUTFBPFI
C1
0.1µF
C2
1µF
R
PF1
806k
D
B
B0540WS
C
B
0.47µF
C3
4.7µF
C4
0.1µF
C
CAP
47µF
R
FBC1
845k
R
FBC2
150k
C
F
0.1µF
C
CP5
0.1µF
CAP1 360F
CAP1-4: NESSCAP ESHSR-0360CO-002R7
L1: VISHAY IHLP5050FDER2R2MO1
C
FBO1
120pF
C
OUT2
22µF
×4
C
OUT1
82µF
×4
R
FBO1
619k
R
FBO2
89.5k
R
PF2
100k
R3
10k
R4
100k
C5
1µF
R6
121Ω
R5
133k
C
C
10nF
R
T1
100k
R2
10k
R1
10k
VCC2P5
PFO
CAPGD
SMBALERT
SCL
SDA
PFO
CAPGD
SMBALERT
SCL
SDA
V
OUT
10V
60W IN BACKUP
TGATE
SW
ICAP
VCAP
CAP_SLCT0
CAP_SLCT1
VCAPP5
3350 TA03
CFP
CAP4
CAP3
CAP2
CAP1
CFN
SGND
PGND
ITST
RT
T
VC
GPI
DRV
CC
INTV
CC
BST
BGATE
+
CAP2 360F
+
CAP3 360F
+
CAP4 360F
+
+
CAPRTN
CAPFB
Typical applicaTions
Application Circuit 3. 11V to 20V, 5.3A LiFePO
4
Battery Charger with 4.6A Input Current Limit and 12V, 48W Backup Mode
V
IN
V
DD
V
IN
11V TO 20V
INFET
MN1
SiS438DN
MN2
BSZ060NE2LS
L1
3.3µH
R
SNSC
0.006Ω
R
CAP1
3.6Ω
R
CAP2
3.6Ω
R
CAP3
3.6Ω
R
CAPRTN
3.6Ω
V
SHUNT
= 3.6V
L1: COILCRAFT XAL7070-332ME
MN3
BSZ060NE2LS
R
SNSI
0.007Ω
VOUTM5VOUTSP
LTC3350
VOUTSN OUTFET
OUTFBPFI
C1
0.1µF
C2
1µF
R
PF1
806k
D
B
B0540WS
C
B
0.1µF
C3
4.7µF
C4
0.1µF
C
CAP
22µF
×4
R
FBC1
909k
R
FBC2
118k
C
F
0.1µF
C
CP5
0.1µF
C
FBO1
120pF
C
OUT2
2.2µF
×2
C
OUT1
47µF
×2
R
FBO1
649k
R
FBO2
71.5k
R
PF2
100k
R3
10k
R4
100k
C5
1µF
R6
10M
R5
71.5k
C
C
4.7nF
R
T1
100k
R2
10k
R1
10k
VCC2P5
PFO
CAPGD
SMBALERT
SCL
SDA
PFO
CAPGD
SMBALERT
SCL
SDA
V
OUT
12V
48W IN BACKUP
TGATE
SW
ICAP
VCAP
CAP_SLCT1
CAP_SLCT0
VCAPP5
3350 TA04
CFP
CAP4
CAP3
CAP2
CAP1
CFN
SGND
PGND
ITST
RT
T
VC
GPI
DRV
CC
INTV
CC
BST
BGATE
CAPRTN
CAPFB
+
+
+
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