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TL1453 Folha de dados(PDF) 3 Page - Texas Instruments |
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TL1453 Folha de dados(HTML) 3 Page - Texas Instruments |
3 / 7 page TL1453C DUAL PULSE-WIDTH-MODULATION CONTROL CIRCUIT SLVS039A – FEBRUARY 1990 – REVISED DECEMBER 1990 3 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 electrical characteristics over recommended operating free-air temperature range, VCC = 6 V, f = 200 kHz (unless otherwise noted) (continued) undervoltage lockout section PARAMETER TEST CONDITIONS MIN TYP† MAX UNIT Upper threshold voltage (pin 9) IOref = 0.1 mA, TA = 25°C 2.72 V Lower threshold voltage (pin 9) IOref = 0.1 mA, TA = 25°C 2.6 V Hysteresis (pin 9) IOref = 0.1 mA, TA = 25°C 80 120 mV oscillator section PARAMETER TEST CONDITIONS MIN TYP† MAX UNIT Frequency CT = 330 pF, RT = 10 kΩ 200 kHz Standard deviation of frequency VCC, TA, RT, CT values are constant 10% Frequency change with voltage VCC = 3.6 V to 40 V 1% Frequency change with temperature TA = –20°C to 25°C – 0.4% ±2% Frequency change with tem erature TA = 25°C to 85°C – 0.2% ±2% dead-time control section PARAMETER TEST CONDITIONS MIN TYP† MAX UNIT Input bias current (pins 6 and 11) 1 µA Input threshold voltage at f 10kHz (pins 6 and 11) Zero duty cycle 2.05 2.25 V Input threshold voltage at f = 10kHz (pins 6 and 11) Maximum duty cycle 1.2 1.45 V error-amplifier section PARAMETER TEST CONDITIONS MIN TYP† MAX UNIT Input offset voltage VO (pins 5 and 12) = 1.25 V ±6 mV Input offset current VO (pins 5 and 12) = 1.25 V ±100 nA Input bias current VO (pins 5 and 12) = 1.25 V 160 500 nA 1.05 Common-mode input voltage range VCC = 3.6 V to 40 V 1.05 to V gg CC 1.45 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 (pins 5 and 12) VID = – 0.1 V, VO = 1.25 V 0.5 1.6 mA Output (source) current (pins 5 and 12) VID = 0.1 V, VO = 1.25 V –45 –70 µA output section PARAMETER TEST CONDITIONS MIN TYP† MAX UNIT Collector off state current VCC = 0, VO = 50 V 10 µA 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. |
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