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TL494CD Arkusz danych(PDF) 2 Page - ON Semiconductor |
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TL494CD Arkusz danych(HTML) 2 Page - ON Semiconductor |
2 / 12 page TL494, NCV494 http://onsemi.com 2 RECOMMENDED OPERATING CONDITIONS Characteristics Symbol Min Typ Max Unit Power Supply Voltage VCC 7.0 15 40 V Collector Output Voltage VC1, VC2 − 30 40 V Collector Output Current (Each transistor) IC1, IC2 − − 200 mA Amplified Input Voltage Vin −0.3 − VCC − 2.0 V Current Into Feedback Terminal lfb − − 0.3 mA Reference Output Current lref − − 10 mA Timing Resistor RT 1.8 30 500 k W Timing Capacitor CT 0.0047 0.001 10 mF Oscillator Frequency fosc 1.0 40 200 kHz ELECTRICAL CHARACTERISTICS (VCC = 15 V, CT = 0.01 mF, RT = 12 kW, unless otherwise noted.) For typical values TA = 25°C, for min/max values TA is the operating ambient temperature range that applies, unless otherwise noted. Characteristics Symbol Min Typ Max Unit REFERENCE SECTION Reference Voltage (IO = 1.0 mA) Vref 4.75 5.0 5.25 V Line Regulation (VCC = 7.0 V to 40 V) Regline − 2.0 25 mV Load Regulation (IO = 1.0 mA to 10 mA) Regload − 3.0 15 mV Short Circuit Output Current (Vref = 0 V) ISC 15 35 75 mA OUTPUT SECTION Collector Off−State Current (VCC = 40 V, VCE = 40 V) IC(off) − 2.0 100 mA Emitter Off−State Current VCC = 40 V, VC = 40 V, VE = 0 V) IE(off) − − −100 mA Collector−Emitter Saturation Voltage (Note 2) Common−Emitter (VE = 0 V, IC = 200 mA) Emitter−Follower (VC = 15 V, IE = −200 mA) Vsat(C) Vsat(E) − − 1.1 1.5 1.3 2.5 V Output Control Pin Current Low State (VOC v 0.4 V) High State (VOC = Vref) IOCL IOCH − − 10 0.2 − 3.5 mA mA Output Voltage Rise Time Common−Emitter (See Figure 12) Emitter−Follower (See Figure 13) tr − − 100 100 200 200 ns Output Voltage Fall Time Common−Emitter (See Figure 12) Emitter−Follower (See Figure 13) tf − − 25 40 100 100 ns 2. Low duty cycle pulse techniques are used during test to maintain junction temperature as close to ambient temperature as possible. |
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