TC5043P

The TC5043P is an timer consisting of CR oscillation circuit and frequency division circuit. The oscillation circuit is made up by externally installing one resistor and one capacitor, being able to be set in a wide range of cycle. The frequency division circuit consists of fixed stage of 1/1000 and variable stage of 1/1~1/600, being capable of performing frequency division of 6×105 max. Therefore, TC5043P can cover all the regions ranging from conventional CR timers to motor timers. This TC5043P is so designed that the external parts required may be reduced to the minimum by means of the built-in zener diode, auto reset circuit, and pull-up/pull-down resistance.

The features of TC5043P can be summarized as (1)wide time range of timer (5ms-1500Hr); (2)wide range of fine adjustment of oscillation frequency (±50% or over); (3)low power consumption (2mW Typ.); (4)little supply voltage regulation of oscillation cycle; (5)narrow temperature variations of oscillation cycle (0.02%/°C); (6)internal auto reset function; (7)precision CR oscillation circuit; (8)internal zener diode; (9)timer/divider switchable; (10)simple display of time elapsed of oscillation; (11)programmable frequency division ratio able to be set in eight ways.

The absolute maximum ratings of TC5043P are (1)DC supply voltage VDD: VSS-0.5-VSS+12V; (2)input voltage VIN: VSS-0.5~VDD+0.5V; (3)output voltage ROUT, Q/10: VSS-0.5~VSS+12V; (4)DC input current IIN: ±10mA; (5)zener current IZ: 10mA; (6)power dissipation PD: 300mW; (7)operating temperature range Topr: -40~85°C; (8)storage temperature range Tstg: -65~150°C.