TA8005S

TA8005S/F TOSHIBA BIPOLAR LINEAR INTEGRATED CIRCUIT SILICON MONOLITHIC TA8005S,TA8005F 5V VOLTAGE REGULATOR WITH WATCHDOG TIMER The TA8005S TA8005F is an IC specially designed for micro-computer systems. It incorporates a highly accurate constant-voltage power supply (5±0.25V) and various system reset functions. For system reset, it monitors the output voltage of VREG×85% and has a watchdog timer which can self-diagnose the microcomputer system so that program runaway can be prevented. Since its bias current is as small as 1.4mA (max.) , it can be connected directly to an automotive battery. FEATURES l Accurate output : 5±0.25V l Low bias current : 1.4mA (max.) l Power-on reset timer incorporated l Watchdog timer incorporated l Wide operating voltage range : 40V (max.) l Operating temperature range : from −40 to 85°C l Output voltage adjusting pin attached l Small SIP-9 pin (TA8005S) SOP-14 pin (TA8005F) TA8005S TA8005F Weight SIP9-P-2.54A : 0.92 g (typ.) SOP14-P-225-1.27 : 0.2 g (typ.) 1 2002-02-27 BLOCK DIAGRAM AND PIN LAYOUT TA8005S/F Note: The TA8005S and TA8005F are the same chip, only the packages are different. 2 2002-02-27 TA8005S/F PIN DESCRIPTION PIN No. TA8005S TA8005F 1 12 2 14 31 43 54 65 77 88 9 10 ― 2, 6, 9, 11, 13 SYMBOL BIAS OUT COMP VCC GND ADJ RESET TC CK NC DESCRIPTION Power supply starting pin. The starting current is supplied through a resistor to which the input voltage is applied. When VCC rises above 3.0V, the startin...