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TL1451AQPWRG4Q1 Folha de dados(PDF) 6 Page - Texas Instruments |
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TL1451AQPWRG4Q1 Folha de dados(HTML) 6 Page - Texas Instruments |
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6 / 24 page  TL1451A-Q1 DUAL PULSEWIDTHMODULATION CONTROL CIRCUITS SGLS304A − JUNE 2005 − REVISED JUNE 2008 6 www.ti.com error-amplifier section PARAMETER TEST CONDITIONS TL1451AQ UNIT PARAMETER TEST CONDITIONS MIN TYP† MAX UNIT TA = 25°C ±7 Input offset voltage VO (FEEDBACK) = 1.25 V TA = 125°C ±10 mV Input offset voltage VO (FEEDBACK) = 1.25 V TA = MIN ±12 mV TA = 25°C ±100 Input offset current VO (FEEDBACK) = 1.25 V TA = 125°C ±100 nA Input offset current VO (FEEDBACK) = 1.25 V TA = MIN ±200 nA TA = 25°C 160 500 Input bias current VO (FEEDBACK) = 1.25 V TA = 125°C 100 500 nA Input bias current VO (FEEDBACK) = 1.25 V TA = MIN 142 700 nA 1.05 Common-mode input voltage range VCC = 3.6 V to 40 V 1.05 to V Common-mode input voltage range VCC = 3.6 V to 40 V to 1.45 V TA = 25°C 70 80 Open-loop voltage amplification RF = 200 kΩ TA = 125°C 70 80 dB Open-loop voltage amplification RF = 200 kΩ TA = MIN 64 80 dB 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 Output (sink) current (FEEDBACK) VID = − 0.1 V, VO = 1.25 V TA = MIN 0.3 1.7 mA TA = 25°C −45 −70 Output (source) current (FEEDBACK) VID = 0.1 V, VO = 1.25 V TA = 125°C −25 −50 µA Output (source) current (FEEDBACK) VID = 0.1 V, VO = 1.25 V TA = MIN −15 −70 µA † All typical values are at TA = 25°C unless otherwise indicated. output section PARAMETER TEST CONDITIONS TL1451AQ UNIT PARAMETER TEST CONDITIONS MIN TYP† MAX UNIT Collector off-state current VO = 50 V 10 µA TA = 25°C 1.2 2 Output saturation voltage TA = 125°C 1.6 2.4 V Output saturation voltage TA = MIN 1.36 2.2 V 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 UNIT PARAMETER TEST CONDITIONS MIN TYP† MAX UNIT Input threshold voltage at f = 10 kHz (FEEDBACK) Zero duty cycle 2.05 2.25} V Input threshold voltage at f = 10 kHz (FEEDBACK) Maximum duty cycle 1.2} 1.45 V † All typical values are at TA = 25°C unless otherwise indicated. ‡ These parameters are not production tested. |
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