LTC1960

PRODUCTION

Dual Battery Charger/ Selector with SPI Interface

Analog Devices LTC1960 Product Info

10 February 2026 4

Features

Complete Dual-Battery Charger/Selector System
Serial SPI Interface Allows External µC Control and Monitoring
Simultaneous Dual-Battery Discharge Extends Run Time by Typically 10%
Simultaneous Dual-Battery Charging Reduces Charging Time by Up to 50%
Automatic PowerPath^™ Switching in <10µs Prevents Power Interruption
Circuit Breaker Protects Against Overcurrent Faults

5% Accurate Adapter Current Limit Maximizes Charging Rate
95% Efficient Synchronous Buck Charger
Charger Has Low 0.5V Dropout Voltage
No Audible Noise Generation, Even with Ceramic Capacitors
11-Bit VDAC Delivers 0.8% Voltage Accuracy
10-Bit IDAC Delivers 5% Current Accuracy
V_IN Up to 32V; V_BATT Up to 28V
Available in 5mm × 7mm 38-Pin QFN and 36-Pin Narrow SSOP Packages

Part details & applications

The LTC1960 is a highly integrated battery charger and selector intended for portable products using dual smart batteries. A serial SPI interface allows an external microcontroller to control and monitor status of both batteries.

A proprietary PowerPath architecture supports simultaneous charging or discharging of both batteries. Typical battery run times are extended by 10%, while charging times are reduced by up to 50%. The LTC1960 automatically switches between power sources in less than 10µs to prevent power interruption upon battery or wall adapter removal.

The synchronous buck battery charger delivers 95% efficiency with only 0.5V dropout voltage, and prevents audible noise in all operating modes. Patented input current limiting with 5% accuracy charges batteries in the shortest possible time without overloading the wall adapter.

The LTC1960’s 5mm × 7mm 38-pin QFN and 36-pin narrow SSOP packages allow implementation of a complete SBS-compliant dual battery system while consuming minimum PCB area.

Applications

Portable Computers
Portable Instruments

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