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TL494 Datasheet(PDF) 5 Page - HTC Korea TAEJIN Technology Co. |
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TL494 Datasheet(HTML) 5 Page - HTC Korea TAEJIN Technology Co. |
5 / 6 page Pulse-Width-Modulation Control Circuits TL494 Electrical characteristics over recommended operating free-air temperature range, Vcc=15V, f=10kHz (unless otherwise noted) Amplifier section (See Figure 2) *For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions. ** All typical values except for parameter changes with temperature are at TA =25 oC *** Duration of the short-circuit should not exceed one second. **** Standard deviation is a measure of the statistical distribution about the mean as derived from the formula. ***** Temperature coefficient of timing capacitor and timing resistor not taken into account. Output section Dead-time control-section (See Figure 1) PMW comparator section (See Figure 1) 2008 - Ver. 1.2 HTC 5 / 6 Average supply current VI(pin 4)= 2V 7.5 610 mA and outputs open VCC=40V 915 Standby supply current Pin 6 at Vref, all other inputs VCC=15V mA Total device PARAMETER TEST CONDITIONS MIN. TYP* MAX. UNIT Input sink current (pin 3) V(pin3) = 0.7V 0.3 0.7 MAX. UNIT Input threshold voltage (pin3) Zero duty cycle 4 4.5 V PARAMETER TEST CONDITIONS MIN. TYP* 3.3 V Maximum duty cycle 0 Input threshold voltage(pin 4) Zero duty cycle 3 -10 ㎂ Maximum duty cycle, each output VI (pin 4)=0, CT=0.1uF, RT=12KΩ 45 % Input bias current(pin4) VI=0 to 5.25V -2 3.5 mA PARAMETER TEST CONDITIONS MIN. TYP* MAX. UNIT Output control input current VI=Vref 1.1 1.3 V Emitter-follower Vc=15V, IE=-200mA 1.5 2.5 Collector-emitter saturation voltage Common-emitter VE=0, IC=200mA 100 ㎂ Emitter off-state current VCC=VC=40V,VE=0 -100 Collector off-state current VCE=40V, Vcc=40V 2 mA PARAMETER TEST CONDITIONS MIN. TYP* MAX. UNIT Output source current (pin 3) VID=15mV~5V, V(pin3)=3.5V -2 dB Output sink current (pin 3) VID=-15mV~-5V, V(pin3)=0.7V 0.3 0.7 mA Common-mode rejection ratio Vo= 40V, TA= 25 oC 65 80 dB Unity-gain bandwidth Vo=0.5~3.5V, RL=2KΩ 800 kHz Open-loop voltage amplification Vo=3V, RL=2KΩ, Vo=0.5~3.5V 70 95 1 ㎂ Common-mode input voltage range Vcc = 7V to 40V -0.3~-2 V Input bias current Vo(pin 3)=2.5V 0.2 10 ㎷ Input offset current Vo(pin 3)=2.5V 25 250 nA Input offset voltage Vo(pin 3)=2.5V 2 SYMBOL TEST CONDITIONS MIN. TYP**. MAX. UNIT |
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