IC manages battery-backup systems




Housed in a low-profile 24-pin QFN package, the LTC4040 from Linear Technology is a 2.5-A lithium-battery–backup power-management system for 3.5-V to 5-V supply rails that must be kept active during a main power failure. The device uses an on-chip bidirectional synchronous converter to provide high-efficiency battery charging, as well as high-current, high-efficiency backup power.

IC manages battery-backup systems

When external power is available, the LTC4040 operates as a step-down battery charger for single-cell lithium ion or lithium iron phosphate batteries, while giving preference to the system load. When the input supply drops below the adjustable power-fail-input threshold, the LTC4040 operates as a step-up regulator capable of delivering up to 2.5 A to the system output from the backup battery. In the event of a power failure, the part provides reverse blocking and a seamless switchover between input power and backup power.

 

For more detail: IC manages battery-backup systems




Leave a Comment

*
= 3 + 1

Read previous post:
Single microcontroller based 12v to 230v inverter with intelligent battery charging Board
Single microcontroller based 12v to 230v inverter with intelligent battery charging

Single microcontroller based 12v to 230v inverter with intelligent battery charging (Made by me) Here I describe the circuit as:...

Close
Scroll to top