ANALOG DEVICES LTC1760IFW#PBF Battery Charger IC, Li-Ion/Pol/NiCd/NiMH, 28 V, 8.4 to 32.7 V/4.43 A Charge, -40 to 125 °C, TSSOP-48

LTC1760 is a smart battery system manager. It is a highly integrated SMBus level 3 battery charger and selector intended for products using dual smart batteries. Three SMBus interfaces allow the device to servo to the internal voltage and currents measured by the batteries while allowing an SMBus Host device to monitor either battery�s status. Charging accuracy is determined by the battery�s internal voltage and current measurements, typically better than ±0.2%. A proprietary PowerPath architecture supports simultaneous charging or discharging of both batteries. Typical battery run times are extended by upto 10%, while charging times are reduced by upto 50%. It automatically switches between power sources in less than 10µs to prevent power interruption upon battery or wall adapter removal. It is widely used in application such as portable computers and instruments, standalone dual smart battery chargers, battery backup systems etc.

• Includes all SMBus charger V1.1 safety features
• Supports autonomous operation without a host
• Allows both batteries to discharge simultaneously into single load with low loss (ideal diode)
• SMBus switching for dual batteries with alarm monitoring for charging battery at all times
• Pin programmable limits for maximum charge current and voltage improve safety
• Low loss simultaneous charging of two batteries
• 95% efficient synchronous buck charger
• SMBus accelerator improves SMBus timing
• Operating temperature is -40°C to 125°C
• Package style is 48-lead plastic TSSOP

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party