LT4351
20
4351fd
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900
●
FAX: (408) 434-0507
●
www.linear.com
LINEAR TECHNOLOGY CORPORATION 2003
LT 1211 REV D • PRINTED IN USA
RELATED PARTS
TYPICAL APPLICATION
PART NUMBER DESCRIPTION COMMENTS
LTC4352 Ideal Diode Controller with Monitor Controls N-Channel MOSFET, 0V to 18V Operation
LTC4354 Negative Voltage Diode-OR Controller and Monitor Controls Two N-Channel MOSFETs, 1µs Turn-Off, 80V Operation
LTC4355 Positive Voltage Diode-OR Controller and Monitor Controls Two N-Channel MOSFETs, 0.5µs Turn-Off, 80V Operation
LTC4357 Positive High Voltage Ideal Diode Controller Controls Single N-Channel MOSFET, 0.5µs Turn-Off, 80V Operation
LTC4358 5A Ideal Diode Integrated N-Channel MOSFET, 0.5µs Turn-Off, 9V to 26.5V
LTC4412 Low Loss PowerPath™ Controller in ThinSOT™ P-Channel MOSFET, 3V to 28V Range
GATE OUTV
IN
UV
OV
1µF
MBR0530
MBR0530
R1
1.07k
1%
10µH
12.6V
BATTERY1
CHARGER
LT4351
SW
V
DD
STATUS
5
FAULT
GND
Si4408DY
3
1Ω
1Ω
7
6
4
2
1 10
9
8
R2
40.1k
1%
0.1µF
10µF
100µF
UV
FAULT
= 11.8V
10µF
10k
5%
10k
5%
OUT
100k
5%
10µF
+
GATE OUTV
IN
UV
OV
1µF
MBR0530
MBR0530
300k
5%
10µH
1N914
12.6V
BATTERY2
CHARGER
LT4351
SW
V
DD
STATUS
5
FAULT
GND
POWER IS SWITCHED TO BATTERY2 WHEN BATTERY1 DROPS TO 11.8V
Si4408DY
3
7
6
4
2
1 10
9
8
120k
5%
10µF
0.1µF
10µF
10µF
10k
4351TA04
OUT
100µF
10k
LOAD
+
+
100µF
+
Primary Battery with Secondary Battery Backup
