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TL1451ACDG4 Folha de dados(PDF) 5 Page - Texas Instruments |
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TL1451ACDG4 Folha de dados(HTML) 5 Page - Texas Instruments |
5 / 37 page TL1451A DUAL PULSEWIDTHMODULATION CONTROL CIRCUITS SLVS024E – FEBRUARY 1983 – REVISED NOVEMBER 1999 5 www.ti.com dead-time control section PARAMETER TEST CONDITIONS TL1451AC UNIT PARAMETER TEST CONDITIONS MIN TYP† MAX UNIT Input bias current (DTC) 1 µA Latch mode (source) current (DTC) TA = 25°C –80 –145 µA Latched input voltage (DTC) IO = 40 µA 2.3 V Input threshold voltage at f 10 kHz (DTC) Zero duty cycle 2.05 2.25 V Input threshold voltage at f = 10 kHz (DTC) Maximum duty cycle 1.2 1.45 V † All typical values are at TA = 25°C. error-amplifier section PARAMETER TEST CONDITIONS TL1451AC UNIT PARAMETER TEST CONDITIONS MIN TYP† MAX UNIT Input offset voltage VO (FEEDBACK) = 1.25 V ±6 mV Input offset current VO (FEEDBACK) = 1.25 V ±100 nA Input bias current VO (FEEDBACK) = 1.25 V 160 500 nA 1.05 Common-mode input voltage range VCC = 3.6 V to 40 V 1.05 to V Common mode in ut voltage range VCC = 3.6 V to 40 V to 1.45 V Open-loop voltage amplification RF = 200 kΩ 70 80 dB Unity-gain bandwidth 1.5 MHz Common-mode rejection ratio 60 80 dB Positive output voltage swing Vref–0.1 V Negative output voltage swing 1 V Output (sink) current (FEEDBACK) VID = –0.1 V, VO = 1.25 V 0.5 1.6 mA Output (source) current (FEEDBACK) VID = 0.1 V, VO = 1.25 V –45 –70 µA † All typical values are at TA = 25°C. output section PARAMETER TEST CONDITIONS TL1451AC UNIT PARAMETER TEST CONDITIONS MIN TYP† MAX UNIT Collector off-state current VO = 50 V 10 µA Output saturation voltage IO = 10 mA 1.2 2 V Short-circuit output current VO = 6 V 90 mA † All typical values are at TA = 25°C. pwm comparator section PARAMETER TEST CONDITIONS TL1451AC 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. total device PARAMETER TEST CONDITIONS TL1451AC UNIT PARAMETER TEST CONDITIONS MIN TYP† MAX UNIT Standby supply current Off-state 1.3 1.8 mA Average supply current RT = 10 kΩ 1.7 2.4 mA † All typical values are at TA = 25°C. |
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