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TA8041HA Datasheet DUAL VOLTAGE REGULATOR WITH WATCHDOG TIMER

Manufacturer: Toshiba

Overview: TOSHIBA Bipolar Linear Integrated Circuit Silicon Monolithic TA8041HA TA8041HA Dual Voltage Regulator with Watchdog Timer The TA8041HA is an IC specially designed for microcomputer systems. It incorporates a highly accurate 5±0.15V constant-voltage power supply and various system reset functions. The power supply section produces two outputs : main output and sub-output. The main output can be controlled for its on / off through the EN pin. For system reset, it has a voltage monitoring function as well as a watchdog timer which can self-diagnose the microcomputer system so that program runaway can be prevented. It also has a reverse battery protection function, a current limiter and a thermal protection function. Since its standby current is as small as 1mA, it can be connected directly to an automotive battery.

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General Description

TA8041HA Pin No.

1 2 3 4 5 6 7 8 9 10 11 12 Symbol GND SE WI RESET TCM CK NC VIN EN VMO VSO TCS Description Grounded.

Detection voltage select pin for power monitoring : Low : VTH1 = 4.80V, VTH2 = 4.40V High : VTH1 = 4.60V, VTH2 = 4.20V It conects to 50kΩ resistor which pulled down to GND.

Key Features

  • Weight: 4.0 g (typ. ) l Accurate output : 5±0.15V l Difference between main and sub output voltage : ±25mV l Output power transistor incorporated Current capacity : Main : 250mA (max) Sub : 100mA (max) l Low standby current : 1mA (max) l Multiple protective function : Reverse battery connection, thermal-shutdown, current limiter l Reset function : Power-on reset, watchdog timer, low voltage detection l Plastic HZIP-12pin 1 2002-02-08 Block Diagram and Pin Layout TA8041HA 2 2002-0.

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