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| LTC3114-1_15 Datasheet, PDF (29/34 Pages) Linear Technology – 40V, 1A Synchronous Buck-Boost DC/DC Converter with Programmable Output Current | |||
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TYPICAL APPLICATIONS
Constant Current/Constant Voltage Lead-Acid Battery Charger
LTC3114-1
VIN
2.7V TO 40V
33nF
68nF
10µF
24.9k
6.8µH
SW1
SW2
BST1
BST2
LTC3114-1
VIN
PVOUT
PVIN
LDO
RUN
PLDO
PROG
MODE
GND
FB
VC
PGND
VBATT FLOAT LEVEL
â30°C 14.5V
68nF
0°C 14.03V
25°C 13.8V
D1
50°C 13.48V
4.7µF
NTC
68k
2M
44µF
220k
1A CONSTANT CHARGING
CURRENT WHEN BELOW
+ FLOAT LEVEL
6-CELL
LEAD-ACID
BATTERY
10nF
31141 TA04a
56.2k
TEMPERATURE
164k COMPENSATION
NTC: VISHAY NTCS0603E3683 HT 68k NOMINAL AT 25°C
INDUCTOR: COILCRAFT MSS1048-682NL
D1: ON SEMI MBRS260T3G
For more information www.linear.com/LTC3114-1
31141fa
29
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