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TA1307P

Integrated Circuit For Standby Power-Supply Control

Toshiba 

TA1307P

AC Characteristics Measurement (there is no designation VCC = 9 V, Ta = 25°C)

(refer: Figure 5 AC characteristic measurement circuit)

No.

Characteristics

UVLO movement voltage

(VUL/VUH)

1

Start Up Current

2

Triangle Wave Oscillate Frequency

3

Output Pulse Rise Time

4 (reference data)

Output Pulse Fall Time

5 (reference data)

6 Output Pulse Max. Voltage

7 Output Pulse Min. Voltage

SW mode

1

2

3

4

Test Condition

Pin4 (FB IN) = GND

Confirm pin7 (pulse out) pulse is output.

Vcc voltage is lowered, and measure Vcc

b

b

a

a voltage when pin7 output pulse

disappears.(VUL)

And Vcc voltage is upped, and measure Vcc

voltage when pin7 output pulse

appears.(VUH)

Pin4 (FB IN) = GND

Input voltage Vcc < 5.0 V

b

b

a

a (= pin7 pulse is not outputted)

And Vcc voltage is upped (Vcc = 9V)

Measure source current through Vcc (I strt).

Pin4 (FB IN) = GND

b

b

a

a Confirm pin7 (pulse out) pulse is output.

Measure pulse period, look for frequency.

(Fosc)

b

b

Above condition, measure pulse rise time

a

a

:pulse amplitude 10% to 90% (TRPF)

b

b

Above condition, measure pulse fall time

a

a

:pulse amplitude 10% to 90% (TSPF)

b

b

a

a

Above condition, measure pulse Max. voltage.

(VOPMX)

b

b

a

a

Above condition, measure pulse Min. voltage.

(VOPMN)

8

2002-02-12

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