SMT4004F

The SMT4004F is a fully integrated programmable voltage manager IC, providing supervisory functions and tracking control for up to four independent power supplies. The four internal managers perform the following functions:Monitor source (bus-side) voltages for under- and overvoltage conditions, monitor each supply for over-current conditions, monitor back end (card-side) voltages for two staged levels of under-voltage conditions, insure power to the card-side logic tracks within the specified parametric limits, and provide supply status information to a host processor.

Features of the SMT4004F are:(1)programmable voltage and current monitoring;(2)programmable card-side trakker function;(3)programmable watchdog and longdog timers (0 to 6.4 seconds);(4)operates from any one of four supply voltages;(5)nonvolatile fault register;(6)all communications to configuration registers and memory array are via 2-wire serial interface.

The absolute maximum ratings of the SMT4004F can be summarized as:(1):the parameter is temperature under bias,the rating is -55 to 125,the unit is ;(2):the parameter is storage temperature,the rating is -65 to 150,the unit is ;(3):the parameter is lead solder temperature(10 secs),the rating is 300,the unit is ;(4):the parameter is terminal voltage with respect to GND:V0,V1,V2 and V3,the rating is -0.3 to 6.0,the unit is V;(5):the parameter is terminal voltage with respect to GND:all others,the rating is -0.3 to 6.0,the unit is V.