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TL1451ACNS 数据表(PDF) 7 Page - Texas Instruments |
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TL1451ACNS 数据表(HTML) 7 Page - Texas Instruments |
7 / 29 page TL1451A DUAL PULSE-WIDTH-MODULATION CONTROL CIRCUITS SLVS024E – FEBRUARY 1983 – REVISED NOVEMBER 1999 7 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 short-circuit protection control section PARAMETER TEST CONDITIONS TL1451AQ, TL1451AM UNIT PARAMETER TEST CONDITIONS MIN TYP† MAX UNIT TA = 25°C 650 700 750 Input threshold voltage (SCP) TA = 125°C 400 478 550 mV TA = MIN 800 880 950 Standby voltage (SCP) 140 185 230 mV TA = 25°C 60 120 Latched input voltage (SCP) TA = 125°C 70 120 mV TA = MIN 60 120 Equivalent timing resistance 170 k Ω Comparator threshold voltage (FEEDBACK) 1.18 V † All typical values are at TA = 25°C unless otherwise indicated. oscillator section PARAMETER TEST CONDITIONS TL1451AQ, TL1451AM UNIT PARAMETER TEST CONDITIONS MIN TYP† MAX UNIT C 330 F TA = 25°C 200 Frequency CT = 330 pF, RT =10kΩ TA = 125°C 195 kHz RT = 10 kΩ TA = MIN 193 Standard deviation of frequency CT = 330 pF, RT = 10 kΩ 2% TA = 25°C 1% Frequency change with voltage VCC = 3.6 V to 40 V TA = 125°C 1% TA = MIN 3% Frequency change with temperature 1.37% * ±10% *These parameters are not production tested. † All typical values are at TA = 25°C unless otherwise indicated. dead-time control section PARAMETER TEST CONDITIONS TL1451AQ, TL1451AM UNIT PARAMETER TEST CONDITIONS MIN TYP† MAX UNIT Input bias current (DTC) TA = 25°C 1 µA Input bias current (DTC) TA = MIN and 125°C 3 µA Latch mode (source) current (DTC) –80 –145 µA TA = 25°C 2.30 Latched input voltage (DTC) TA = 125°C 2.22 2.32 V TA = MIN 2.28 2.40 Input threshold voltage atf=10kHz (DTC) Zero duty cycle 2.05 *2.25 V Input threshold voltage at f = 10 kHz (DTC) Maximum duty cycle *1.20 1.45 V *These parameters are not production tested. † All typical values are at TA = 25°C unless otherwise indicated. |
类似零件编号 - TL1451ACNS |
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类似说明 - TL1451ACNS |
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