LTC3625-1_15 Datasheet, PDF (14/16 Pages) Linear Technology – 1A High Efficiency 2-Cell Supercapacitor Charger with Automatic Cell Balancing

LTC3625/LTC3625-1
Typical Applications
Solar Powered SCAP Charger with MPPT
D1
CMSH3-40
D3
SOLAR PANEL
+
6.0V OPEN CIRCUIT
4.4V MPP
C4
390µF
16V
R4
R1
10k 26.7k
C6
100pF
R5
174k
V_IN
V_{OUT L1 3.3µH}
CTL
SW1
C2
L2 3.3µH
1F
C1
EN LTC3625 _SW2
10µF
PFI
V_SEL
V_MID
C3
1F
GND
GND
PROG
R3
143k
R2
10.0k
C5
D2
10nF
1.2V
4_–
5
V⁺
1
LT1784CS5
3 _{+ V}–
2
3625 TA04
5V
R1
C1 287k
10µF
R2
100k
V_IN
V_OUT
CTL
SW1
LTC3625
EN
SW2
PFI
V_MID
V_SEL
GND
GND
PROG PFO
R3
143k
L1
3.3µH
5V Power Ride-Through
Q2
Si4421DY
Q1
Si4421DY
C2
100F
LTC4412
C3
100F
V_IN SENSE
GND GATE
R4
470k
CTL STAT
C5
22µF
V_IN1
V_OUT1
V_IN2
FB1
LTM4616
GND ITHM1
V_OUT2
FB2
ITHM2
GND
R5
4.78k
1.8V
C6
100µF
C7
C8
R6
100µF
100µF
10k
3625 TA05
3625f
14