Datasheet LTC4040 (Analog Devices) - 26
| Manufacturer | Analog Devices |
| Description | 2.5A Battery Backup Power Manager |
| Pages / Page | 26 / 26 — Typical applicaTion. 5V Backup Application with OVP Protection and … |
| File Format / Size | PDF / 1.4 Mb |
| Document Language | English |
Typical applicaTion. 5V Backup Application with OVP Protection and Non-Backed Up Load Option
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LTC4040
Typical applicaTion 5V Backup Application with OVP Protection and Non-Backed Up Load Option (Charge Current Setting: 2.5A, Input Current Limit Setting: 4A)
TO NON-BACKED-UP R LOAD S 4.35V TO 5V MN1 VSYS V 6mΩ PWR 4.35V TO 5V INPUT SUPPLY TO BACKED-UP (PROTECTED SYSTEM LOAD 2.2µF MN2 TO 40V) 6.2k 1/4W 1690k 100µF OVP OPT VIN CLN IGATE VSYS 324k OVSNS BSTFB PFI RSTFB 2.2µH 178k 60.4k SW FAULT BAT 10µF LTC4040 V PFO IN RST CHRG RBIAS CLPROG NTC CHGOFF BSTOFF GND F0 F1 F2 PROG + Li-Ion NTC BATTERY 800Ω 4.1V VSYS 4040 TA03 L1: COILCRAFT XAL-5030-222 MN1: VISHAY/SILICONIX SiS488DN MN2: VISHAY/SILICONIX SIR424DP-T1-GE3
relaTeD parTs PART NUMBER DESCRIPTION COMMENTS
LTC3226 2-Cell Supercapacitor Charger with Backup PowerPath™ 1x/2x Multimode Charge Pump Supercapacitor Charger, Internal 2A LDO Controller Backup Supply LTC3350 High Current Supercapacitor Backup Controller and High Efficiency Synchronous Step-Down CC-CV Charging of 1-4 Series System Monitor Supercapacitors LTC3355 20V 1A Buck DC/DC with Integrated SCAP Charger and 1A Main Buck Regulator, 5A Boost Backup Regulator Backup Regulator LTC4089 USB Power Manager with High Voltage Switching 1.2A Charger for Li-Ion from 6V to 86V Supply Charger LTC4090 USB Power Manager with 2A High Voltage Bat-Track 2A Charger with Bat-Track for Li-Ion Batteries Buck Regulator LTC4110 Battery Backup System Manager Complete Manager for Li-Ion/Polymer, Lead Acid, NiMH/NiCd Batteries and Supercapacitors LTC4155/LTC4156 Dual Input Power Manager/3.5A Li-Ion Battery Charger 3.5A Charge Current for Li-Ion/Polymer, LTC4156 for LiFePO4 Batteries with I2C Control and USB OTG LTC4160 Switching Power Manager with USB On-The-Go and 1.2A Charge Current Overvoltage Protection 4040fb 26 LT 0817 REV B • PRINTED IN USA www.linear.com/LTC4040 For more information www.linear.com/LTC4040 LINEAR TECHNOLOGY CORPORATION 2015 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Application Package Description Revision History Typical Application Related Parts
Typical applicaTion 5V Backup Application with OVP Protection and Non-Backed Up Load Option (Charge Current Setting: 2.5A, Input Current Limit Setting: 4A)
TO NON-BACKED-UP R LOAD S 4.35V TO 5V MN1 VSYS V 6mΩ PWR 4.35V TO 5V INPUT SUPPLY TO BACKED-UP (PROTECTED SYSTEM LOAD 2.2µF MN2 TO 40V) 6.2k 1/4W 1690k 100µF OVP OPT VIN CLN IGATE VSYS 324k OVSNS BSTFB PFI RSTFB 2.2µH 178k 60.4k SW FAULT BAT 10µF LTC4040 V PFO IN RST CHRG RBIAS CLPROG NTC CHGOFF BSTOFF GND F0 F1 F2 PROG + Li-Ion NTC BATTERY 800Ω 4.1V VSYS 4040 TA03 L1: COILCRAFT XAL-5030-222 MN1: VISHAY/SILICONIX SiS488DN MN2: VISHAY/SILICONIX SIR424DP-T1-GE3
relaTeD parTs PART NUMBER DESCRIPTION COMMENTS
LTC3226 2-Cell Supercapacitor Charger with Backup PowerPath™ 1x/2x Multimode Charge Pump Supercapacitor Charger, Internal 2A LDO Controller Backup Supply LTC3350 High Current Supercapacitor Backup Controller and High Efficiency Synchronous Step-Down CC-CV Charging of 1-4 Series System Monitor Supercapacitors LTC3355 20V 1A Buck DC/DC with Integrated SCAP Charger and 1A Main Buck Regulator, 5A Boost Backup Regulator Backup Regulator LTC4089 USB Power Manager with High Voltage Switching 1.2A Charger for Li-Ion from 6V to 86V Supply Charger LTC4090 USB Power Manager with 2A High Voltage Bat-Track 2A Charger with Bat-Track for Li-Ion Batteries Buck Regulator LTC4110 Battery Backup System Manager Complete Manager for Li-Ion/Polymer, Lead Acid, NiMH/NiCd Batteries and Supercapacitors LTC4155/LTC4156 Dual Input Power Manager/3.5A Li-Ion Battery Charger 3.5A Charge Current for Li-Ion/Polymer, LTC4156 for LiFePO4 Batteries with I2C Control and USB OTG LTC4160 Switching Power Manager with USB On-The-Go and 1.2A Charge Current Overvoltage Protection 4040fb 26 LT 0817 REV B • PRINTED IN USA www.linear.com/LTC4040 For more information www.linear.com/LTC4040 LINEAR TECHNOLOGY CORPORATION 2015 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Application Package Description Revision History Typical Application Related Parts