STMicroelectronics AN1284 Application Note TSM102A Battery Charger

This application note explains how to use the TSM102 in an SMPS-type battery charger which features: voltage control, current control, low battery detection and end of charge detection.

Brand: STMicroelectronics
Category: Other Electronics
Document type: Application Note
Language: English
Pages: 3
File format: PDF
File size: 74 KB
Published: 06 August, 2012
Updated: 30 September, 2023
MD5 checksum: CAB82B4F5DF741881CB97CC3E8EF9216
PDF: STMicroelectronics AN1284 Application Note TSM102A Battery Charger PDF

About this manual

The document describes a design for a Lithium-ion battery charger using the TSM102A chip. The circuit features voltage control, current control, low battery detection, and end-of-charge detection. It details how the two operational amplifiers in the TSM102A manage these functions on the secondary side of an SMPS.

What's inside

TSM102 Presentation
Application Context and Principle
Calculation of Elements
Low Battery Signal Calculation
End of Charge Signal Calculation

Frequently asked questions

What battery configuration is this application note designed for?

The component values are chosen specifically for charging two Lithium-Ion batteries.

What is the maximum voltage this integrated circuit can sustain?

The TSM102 can sustain up to 36V power supply voltages.

What is the maximum discharge current allowed if the charger is disconnected?

The chosen resistor values impose a maximum discharge current of 44mA.

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