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TL1451 Arkusz danych(PDF) 8 Page - Texas Instruments |
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TL1451 Arkusz danych(HTML) 8 Page - Texas Instruments |
8 / 29 page TL1451A DUAL PULSE-WIDTH-MODULATION CONTROL CIRCUITS SLVS024E – FEBRUARY 1983 – REVISED NOVEMBER 1999 8 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 error-amplifier section PARAMETER TEST CONDITIONS TL1451AQ, TL1451AM UNIT PARAMETER TEST CONDITIONS MIN TYP† MAX UNIT TA = 25°C ±6 Input offset voltage VO (FEEDBACK) = 1.25 V TA = 125°C ±10 mV TA = MIN ±12 TA = 25°C ±100 Input offset current VO (FEEDBACK) = 1.25 V TA = 125°C ±100 nA TA = MIN ±200 TA = 25°C 160 500 Input bias current VO (FEEDBACK) = 1.25 V TA = 125°C 100 500 nA TA = MIN 142 700 1.05 Common-mode input voltage range VCC = 3.6 V to 40 V 1.05 to V gg CC 1.45 TA = 25°C 70 80 Open-loop voltage amplification RF = 200 kΩ TA = 125°C 70 80 dB TA = MIN 64 80 Unity-gain bandwidth 1.5 MHz Common-mode rejection ratio 60 80 dB Positive output voltage swing 2 V Negative output voltage swing 1 V TA = 25°C 0.5 1.6 Output (sink) current (FEEDBACK) VID = – 0.1 V, VO = 1.25 V TA = 125°C 0.4 1.8 mA TA = MIN 0.3 1.7 TA = 25°C –45 –70 Output (source) current (FEEDBACK) VID = 0.1 V, VO = 1.25 V TA = 125°C –25 –50 µA TA = MIN –15 –70 † All typical values are at TA = 25°C unless otherwise indicated. output section PARAMETER TEST CONDITIONS TL1451AQ, TL1451AM UNIT PARAMETER TEST CONDITIONS MIN TYP† MAX UNIT Collector off-state current VO = 50 V 10 µA TA = 25°C 1.20 2.0 Output saturation voltage TA = 125°C 1.60 2.4 V TA = MIN 1.36 2.2 Short-circuit output current VO = 6 V 90 mA † All typical values are at TA = 25°C unless otherwise indicated. pwm comparator section PARAMETER TEST CONDITIONS TL1451AQ, TL1451AM UNIT PARAMETER TEST CONDITIONS MIN TYP† MAX UNIT Input threshold voltage atf=10kHz (FEEDBACK) Zero duty cycle 2.05 *2.25 V Input threshold voltage at f = 10 kHz (FEEDBACK) 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. |
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