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TA1307P 数据表(PDF) 8 Page - Toshiba Semiconductor |
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TA1307P 数据表(HTML) 8 Page - Toshiba Semiconductor |
8 / 12 page TA1307P 2002-02-12 8 AC Characteristics Measurement (there is no designation VCC ==== 9 V, Ta ==== 25°C) (refer: Figure 5 AC characteristic measurement circuit) SW mode No. Characteristics 1 2 3 4 Test Condition 1 UVLO movement voltage (VUL/VUH) b b a a Pin4 (FB IN) = GND Confirm pin7 (pulse out) pulse is output. Vcc voltage is lowered, and measure Vcc voltage when pin7 output pulse disappears.(VUL) And Vcc voltage is upped, and measure Vcc voltage when pin7 output pulse appears.(VUH) 2 Start Up Current b b a a Pin4 (FB IN) = GND Input voltage Vcc < 5.0 V ( = pin7 pulse is not outputted) And Vcc voltage is upped (Vcc = 9V) Measure source current through Vcc (I strt). 3 Triangle Wave Oscillate Frequency b b a a Pin4 (FB IN) = GND Confirm pin7 (pulse out) pulse is output. Measure pulse period, look for frequency. (Fosc) 4 Output Pulse Rise Time (reference data) b b a a Above condition, measure pulse rise time :pulse amplitude 10% to 90% (TRPF) 5 Output Pulse Fall Time (reference data) b b a a Above condition, measure pulse fall time :pulse amplitude 10% to 90% (TSPF) 6 Output Pulse Max. Voltage b b a a Above condition, measure pulse Max. voltage. (VOPMX) 7 Output Pulse Min. Voltage b b a a Above condition, measure pulse Min. voltage. (VOPMN) |
类似零件编号 - TA1307P |
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类似说明 - TA1307P |
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