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TA8006SN

Part Number	TA8006SN
Manufacturer	Toshiba
Description	5V VOLTAGE REGULATOR WITH WATCHDOG TIMER
Published	Jun 16, 2005
Detailed Description	TA8006SN TOSHIBA BIPOLAR LINEAR INTEGRATED CIRCUIT SILICON MONOLITHIC TA8006SN 5V VOLTAGE REGULATOR WITH WATCHDOG TIMER ...
Datasheet	TA8006SN PDF File

Overview

TA8006SN TOSHIBA BIPOLAR LINEAR INTEGRATED CIRCUIT SILICON MONOLITHIC TA8006SN 5V VOLTAGE REGULATOR WITH WATCHDOG TIMER The TA8006SN is an IC specially designed for microcomputer systems.
It incorporates a highly accurate constant-voltage power supply (5±0.
1V) and various system reset functions.
For system reset, it monitors two voltages-84% and 92% of VREG-and has a watchdog timer which can self-diagnose the microcomputer system so that program runaway can be prevented.
It also has an overvoltage protection function and a current limiter.
Since its standby current is as small as 0.
7mA (max.
), it can be connected directly to an automotive battery.
FEATURES l Accurate output : 5±0.
1V (Ta = 25°C) Weight: 0.
71 g (typ.
) l Low standby current : 0.
7mA (ｍax.
) l Watchdog timer and power-on reset timer incorporated : RESET, RESET, WI l Current limiter and overvoltage protection circuit incorporated.
l Wide operating voltage range : 40V (ｍax.
) l Wide operating temperature : −40~105°C l Small shrink SIP-12pin.
BLOCK DIAGRAM AND PIN LAYOUT 1 2002-02-27 PIN DESCRIPTION TA8006SN PIN No.
1 2 3 4 5 6 7 8 9 10 11 12 SYMBOL BIAS IS OUT COMP VCC GND ST WI RESET RESET TC CK DESCRIPTION Power supply pin for the current limiter, the over-voltage detector, the startup circuit which turns on 5V power.
Detection pin for the current limiter.
The voltage drop across external detection resistor RS between pins 1 and 2 is monitored.
A voltage exceeding 0.
3V activates the current limiter.
Example : If the load current 300mA, the value of RS is 0.
3V / 300mA = 1Ω Connected to the base of an external PNP transistor so that the output voltage is stabilized.
Power supply design suitable for particular load capacities is thus possible.
Since the recommended maximum IOUT is 5mA, an output current of 300mA is assured if the external transistor has an hFE of 60 or more.
Phase compensation pin for output stabilization.
Power supply pin for the power supply and the reset timer.
The output...

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