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LTC3350_15 Datasheet, PDF (40/46 Pages) Linear Technology – High Current Supercapacitor Backup Controller and System Monitor
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LTC3350
Typical Applications
Application Circuit 2. 11V to 20V, 16A Supercapacitor Charger with 6.4A Input Current Limit and 10V, 60W Backup Mode
PFO
CAPGD
SMBALERT
SCL
SDA
VIN
11V TO 20V
C1
0.1µF
RPF1
806k
VDD
RPF2
R1 R2 R3 100k
10k 10k 10k
MN1
SiR422DP
RSNSI
0.005Ω
C2
1µF
VIN INFET VOUTM5 VOUTSP VOUTSN OUTFET
PFI
OUTFB
DRVCC
INTVCC
PFO
CAPGD
SMBALERT
SCL
SDA
BST
TGATE
SW
VCC2P5
R4
100k
C5
1µF
CAP_SLCT0
CAP_SLCT1
GPI
VC
T
RT1
100k
RT
ITST
CC
R5 R6
10nF 133k 121Ω
SGND
PGND
LTC3350
BGATE
ICAP
VCAP
CFP
CFN
VCAPP5
CAP4
CAP3
CAP2
CAP1
CAPRTN
CAPFB
VOUT
10V
60W IN BACKUP
DB
B0540WS
CB
0.47µF
CFBO1
120pF
RFBO1
619k
C4
0.1µF
RFBO2
89.5k
C3
4.7µF
MN2
BSC026N02KS
MN3
BSC046N02KS ×2
+ COUT1
82µF
×4
COUT2
22µF
×4
L1
2.2µH
RSNSC
0.002Ω
CCAP
47µF
CF
0.1µF
CCP5
0.1µF
RCAP4 2.7Ω
RCAP3 2.7Ω
RCAP2 2.7Ω
RCAP1 2.7Ω
RCAPRTN 2.7Ω
+
CAP4 360F
+
CAP3 360F
+
CAP2 360F
+
CAP1 360F
RFBC1
845k
RFBC2
150k
3350 TA03
CAP1-4: NESSCAP ESHSR-0360CO-002R7
L1: VISHAY IHLP5050FDER2R2MO1
Application Circuit 3. 11V to 20V, 5.3A LiFePO4 Battery Charger with 4.6A Input Current Limit and 12V, 48W Backup Mode
PFO
CAPGD
SMBALERT
SCL
SDA
VIN
11V TO 20V
C1
0.1µF
RPF1
806k
VDD
RPF2
R1 R2 R3 100k
10k 10k 10k
MN1
SiS438DN
RSNSI
0.007Ω
C2
1µF
VIN INFET VOUTM5 VOUTSP VOUTSN OUTFET
PFI
OUTFB
DRVCC
INTVCC
PFO
CAPGD
SMBALERT
SCL
SDA
BST
TGATE
SW
VCC2P5
R4
100k
C5
1µF
CAP_SLCT1
CAP_SLCT0
GPI
VC
T
RT1
100k
RT
ITST
CC
R5
R6
4.7nF 71.5k 10M
SGND
PGND
LTC3350
BGATE
ICAP
VCAP
CFP
CFN
VCAPP5
CAP4
CAP3
CAP2
CAP1
CAPRTN
CAPFB
VOUT
12V
48W IN BACKUP
DB
B0540WS
CB
0.1µF
CFBO1
120pF
RFBO1
649k
C4
0.1µF
RFBO2
71.5k
C3
4.7µF
MN2
BSZ060NE2LS
MN3
BSZ060NE2LS
COUT1
47µF
×2
COUT2
2.2µF
×2
L1
3.3µH
RSNSC
0.006Ω
CCAP
22µF
×4
CF
0.1µF
CCP5
0.1µF
RCAP3 3.6Ω
+
RCAP2 3.6Ω
+
RCAP1 3.6Ω
+
RCAPRTN 3.6Ω
RFBC1
909k
RFBC2
118k
3350 TA04
VSHUNT = 3.6V
L1: COILCRAFT XAL7070-332ME
3350fb
40
For more information www.linear.com/LTC3350
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