Datasheet LT4351 (Analog Devices) - 20
| Manufacturer | Analog Devices |
| Description | MOSFET Diode-OR Controller |
| Pages / Page | 20 / 20 — TYPICAL APPLICATION. Primary Battery with Secondary Battery Backup. … |
| File Format / Size | PDF / 346 Kb |
| Document Language | English |
TYPICAL APPLICATION. Primary Battery with Secondary Battery Backup. RELATED PARTS PART NUMBER. DESCRIPTION. COMMENTS
Model Line for this Datasheet
Text Version of Document
LT4351
TYPICAL APPLICATION Primary Battery with Secondary Battery Backup
CHARGER Si4408DY OUT + 1Ω 12.6V 10µF BATTERY1 3 1 10 R2 10µF 40.1k 0.1µF VIN GATE OUT 1% 7 UV R1 10µH 1.07k LT4351 1% 6 OV 10k 10k 4 9 5% 5% SW STATUS + MBR0530 MBR0530 100µF 2 8 VDD FAULT 10µF 1µF GND 100k 5 5% UVFAULT = 11.8V CHARGER Si4408DY OUT + 120k 1Ω 12.6V 5% 10µF 100µF LOAD BATTERY2 3 1 10 10µF 0.1µF VIN GATE OUT 7 UV 10µH 300k 1N914 5% LT4351 6 OV 10k 10k 4 9 SW STATUS + MBR0530 MBR0530 100µF 2 8 VDD FAULT 10µF 1µF GND 5 4351TA04 POWER IS SWITCHED TO BATTERY2 WHEN BATTERY1 DROPS TO 11.8V
RELATED PARTS 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 4351fd 20 Linear Technology Corporation LT 1211 REV D • PRINTED IN USA 1630 McCarthy Blvd., Milpitas, CA 95035-7417 (408) 432-1900 ● FAX: (408) 434-0507 ● www.linear.com LINEAR TECHNOLOGY CORPORATION 2003 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Package Description Revision History Typical Application Related Parts
TYPICAL APPLICATION Primary Battery with Secondary Battery Backup
CHARGER Si4408DY OUT + 1Ω 12.6V 10µF BATTERY1 3 1 10 R2 10µF 40.1k 0.1µF VIN GATE OUT 1% 7 UV R1 10µH 1.07k LT4351 1% 6 OV 10k 10k 4 9 5% 5% SW STATUS + MBR0530 MBR0530 100µF 2 8 VDD FAULT 10µF 1µF GND 100k 5 5% UVFAULT = 11.8V CHARGER Si4408DY OUT + 120k 1Ω 12.6V 5% 10µF 100µF LOAD BATTERY2 3 1 10 10µF 0.1µF VIN GATE OUT 7 UV 10µH 300k 1N914 5% LT4351 6 OV 10k 10k 4 9 SW STATUS + MBR0530 MBR0530 100µF 2 8 VDD FAULT 10µF 1µF GND 5 4351TA04 POWER IS SWITCHED TO BATTERY2 WHEN BATTERY1 DROPS TO 11.8V
RELATED PARTS 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 4351fd 20 Linear Technology Corporation LT 1211 REV D • PRINTED IN USA 1630 McCarthy Blvd., Milpitas, CA 95035-7417 (408) 432-1900 ● FAX: (408) 434-0507 ● www.linear.com LINEAR TECHNOLOGY CORPORATION 2003 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Package Description Revision History Typical Application Related Parts
