SG3546

Input Supply Voltage (VIN)............................................................................... -1V to 12V
RESET Output Voltage (VOUT) .......................................................................... -1V to 12V
Clamp Diode Forward Current .............................................................................. 100mA
Operating Junction Temperature
Plastic (DM - Package) ......................................................................................... 150°C
Storage Temperature Range...................................................................... -65°C to 150°C
Lead Temperature (Soldering, 10 seconds) ............................................................ 300°C
Note 1. Values beyond which damage may occur. All voltages are specified with respect to
ground, and all currents are positive into the specified terminal.

The SG3546 is an undervoltage sensing circuit specifically designed for use as a reset controller in 3.3V
microprocessor-based applications. Its micropower operation makes SG3546 ideal for portable applications where extended battery life is required. The device offers a 1.2V temperature compensated bandgap reference, a precision comparator with hysteresis and a high-current open collector output. This device operates from 1 10V input supply and drains <10µA in the non-fault condition.

The SG3546 is available in an 8-pin 150mil SOIC package or a 3-pin TO-92 package and is rated for an ambient temperature of 0°C to 70°C.