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TL494 Datasheet(PDF) 4 Page - HTC Korea TAEJIN Technology Co. |
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TL494 Datasheet(HTML) 4 Page - HTC Korea TAEJIN Technology Co. |
4 / 6 page Pulse-Width-Modulation Control Circuits TL494 ABSOLUTE MAXIMUM RATINGS OVER OPERATING FREE-AIR TEMPERATURE RANGE RECOMMENDED OPERATING CONDITIONS Electrical characteristics over recommended operatng free-air temperature range, Vcc=15V, f= 10 kHz(unless otherwise noted). Oscillator section (See Figure 1) 2008 - Ver. 1.2 HTC 1 TA = MIN to MAX 4 / 6 Frequency change with temperature**** CT=0.01μF, RT=12KΩ, KHz Standard deviation of frequency**** 10 % Frequency change with voltage 0.1 Frequency 10 mA Parameter Test Conditions* Value Unit MIN TYP** MAX Short-circuit output current*** Vref = 0 35 Unit V mV Output voltage change with temperature TA = MIN to MAX 0.2 1 % Operating free-air temperature, TA -40 85 oC Oscillator frequency 1 300 KHz Parameter Value Unit V Vcc=7V to 40V, TA=25oC Unit V mA oC Storage temperature range -65 to 150 Lead temperature 1,6 mm from case for 10 seconds 260 and TA constant All values of Vcc, CT,RT, CT=0.01μF, RT=12KΩ Output regulation Io = 1mA to 10mA 1 15 4.75 5 5.25 Input regulation Vcc = 7V to 40 V 2 25 MIN TYP** MAX Output voltage (Vref) lo = 1mA Parameter Test Conditions* Value Timing resistor, RT 1.8 500 KΩ Timing capacitor, CT 0.47 10000 nF Current into feedback terminal 0.3 mA Collector output current (each transistor) 200 Amplifier input voltage, Vi -0.3 Vcc -2 Collector output voltage, Vo 40 MIN MAX Supply voltage, Vcc 7 40 Amplifier input voltage Vcc +0.3 Collector output voltage 41 Collector output current 250 Operating free-air temperature range -40 to 125 Rating Value Supply voltage, Vcc 41 |
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