LTC1960CG#PBF

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 upto 50%. It 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. It is used in applications such as portable computers, portable instruments etc.

• Circuit breaker protects against overcurrent faults
• Charger has low 0.5V dropout voltage
• No audible noise generation, even with ceramic capacitors
• IDAC resolution is 10bits
• VDAC resolution is 11bits
• DCIN operating range is 6V to 28V
• DCIN operating current is 1mA typical at (TA = 25°C, VDCIN = 20V, VBAT1 = 12V, VBAT2 = 12V)
• Regulator switching frequency is 300KHz typ at (TA = 25°C, VDCIN = 20V)
• Operating ambient temperature is 0°C to 70°C
• Package style is 36-lead plastic SSOP

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