DS1336

DS1336 Afterburner Chip www.dalsemi.com FEATURES § Provides power switching of up to 1.5 amps at voltages between 3.0 and 5.0 volts § Five separate power switches § Selectable battery switches for use with § battery-backed systems § Very low on impedance of 0.7O § Battery backup current of 4 mA § Diode-isolated battery path § Available in 16-pin DIP or 16-pin SOIC surface § mount package § Low voltage drop battery path § Connects directly to a variety of Dallas Semiconductor devices, adding increased switching capability for large battery backup current applications PIN ASSIGNMENT OUT5 PF IN5 IN2 IN4 VBATIN VBAT02 OUT4 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 VCC/IN1 PF GND OUT1 OUT2 OUT3 VBAT01 IN3 16-Pin DIP (300-mil) See Mach. Drawings Section OUT5 PF IN5 IN2 IN4 VBATIN VBAT02 OUT4 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 VCC/IN1 PF GND OUT1 OUT2 OUT3 VBAT01 IN3 16-Pin DIP SOIC (300-mil) See Mach. Drawings Section PIN DESCRIPTION VCC/IN1 IN2 - IN5 OUT1 - 5 VBATIN VBAT01 VBAT02 PF, PF GND - +5V Input and Input 1 - Inputs 2 - 5 - Outputs 1 - 5 - External Battery Input - Diode Protected Battery Output - Low Voltage Drop Battery Output - Power-fail Inputs - Ground DESCRIPTION The DS1336 Afterburner Chip is designed to provide power switching between a primary power supply (VCC) and a backup battery power supply (VBAT). Five VCC and two battery paths are provided which can be used individually or in parallel to supply uninterrupted power in applications such as SRAM networks....