Linear Technology LTC4120 Battery Charger Datasheet

The LTC

Brand: Linear Technology
Category: Battery Charger
Document type: Datasheet
Language: English
Pages: 33
File format: PDF
File size: 608 KB
Published: 04 July, 2014
Updated: 25 September, 2023
MD5 checksum: 2AE376D2562837E8E5096B8D5C132813
PDF: Linear Technology LTC4120 Battery Charger Datasheet PDF

About this manual

The LTC4120 is a constant-current/constant-voltage wireless receiver and battery charger designed for contactless charging across an air gap. It utilizes a Dynamic Harmonization Control (DHC) technique to optimize wireless charging efficiency over a wide coupling range. An external programming resistor sets the charge current up to 400mA, while the programmable float voltage accommodates several battery chemistries.

What's inside

Typical Application
Features
Applications
Pin Configuration
Absolute Maximum Ratings
Order Information
Electrical Characteristics
Status Pins
NTC
RUN

Specifications

Charge Current	50mA to 400mA
Input Voltage Range	4.3V to 40V
Float Voltage Range	3.5V to 11V
Supply Current (Switching)	3.5 mA

Frequently asked questions

What is the maximum charge current?

The charge current can be programmed up to 400mA using an external resistor.

Does the device require a microprocessor?

No, the LTC4120 operates without a microprocessor.

What is the input voltage range?

The device supports a wide input voltage range from 4.3V to 40V.

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