TA8002S 查看數據表（PDF） - Toshiba

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TA8002S

5V VOLTAGE REGULATOR WITH RESET TIMER

Toshiba 

PIN DESCRIPTION

TA8002S/AS

PIN No.

1

2

3

4

5

SYMBOL

DESCRIPTION

BIAS

OUT

VCC

GND

Power supply starting pin. The starting current is supplied through a resistor to which the input voltage

is applied. The output current from this starting current is as follows :

IOUT (OUT Pin) ≥HFE× (VIN−0.7) / (200+R1) (mA)

where R1 is the external resistance attached to Bias Pin (kΩ) .

When VCC rises above 2.7V, the starting current is absorbed in the internal circuit ; instead, the

output current OUT is supplied via VCC.

Connected to the base of an external PNP transistor so that the output voltage is stabilized.

Power supply pin for internal circuit. The output voltage can also be detected at this pin.

Grounded

The output voltage can be adjusted by inserting a resistor between ADJ and GND or between ADJ

and VCC.

Mode

ADJ Pin

Output Voltage VREG

ADJ

Standby

OPEN

3.5V

Normal

GND

5.0V

6

TC

Time setting pin for reset timer. Use external RT and CT to set the time.

NPN transistor open-collector output. This pin supplies a reset signal when the output drops below

7

RESET 92% of the specified level. After the output voltage increases above 92% of the specified level, the

reset signal will be output for a period of time set at the TC pin.

2

2002-03-12

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