DESCRIPTION

The DS1227 Kickstarter is a unique CMOS circuit which combines power conversion and microenergy management functions for battery operated systems. Using its integral DC-DC converter, the DS1227 supplies +5V on demand from either a 3– or 6–volt battery input.

FEATURES

• Provides step-up regulation and microenergy management for battery-operated systems

• Converts +3V to +6V DC input power source to +5V DC out for system power

• “Kickstarts” system power upon detection of external stimuli:

- Clock/calendar alarm

- Sensor trip; such as from a photo diode

- Incoming activity to a serial port

- Any low-level signal transition

• Shuts down microcontroller power under software control when operation complete

• Provides 3 auxiliary power outputs for independent powering of system functions

• Allows design of “power on demand” systems

• Insures maximum life of main power source

• Ideally suited for DS5000-based systems

• Available in 20-pin DIP or SOIC packages

• Operating temperature range of –40°C to +85°C