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TL494CDR2 Datasheet(PDF) 3 Page - ON Semiconductor |
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TL494CDR2 Datasheet(HTML) 3 Page - ON Semiconductor |
3 / 14 page TL494, NCV494 http://onsemi.com 3 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 ERROR AMPLIFIER SECTION Input Offset Voltage (VO (Pin 3) = 2.5 V) VIO − 2.0 10 mV Input Offset Current (VO (Pin 3) = 2.5 V) IIO − 5.0 250 nA Input Bias Current (VO (Pin 3) = 2.5 V) IIB − −0.1 −1.0 mA Input Common Mode Voltage Range (VCC = 40 V, TA = 25°C) VICR −0.3 to VCC−2.0 V Open Loop Voltage Gain ( DVO = 3.0 V, VO = 0.5 V to 3.5 V, RL = 2.0 kW) AVOL 70 95 − dB Unity−Gain Crossover Frequency (VO = 0.5 V to 3.5 V, RL = 2.0 kW) fC− − 350 − kHz Phase Margin at Unity−Gain (VO = 0.5 V to 3.5 V, RL = 2.0 kW) fm − 65 − deg. Common Mode Rejection Ratio (VCC = 40 V) CMRR 65 90 − dB Power Supply Rejection Ratio ( DVCC = 33 V, VO = 2.5 V, RL = 2.0 kW) PSRR − 100 − dB Output Sink Current (VO (Pin 3) = 0.7 V) IO− 0.3 0.7 − mA Output Source Current (VO (Pin 3) = 3.5 V) IO+ 2.0 −4.0 − mA PWM COMPARATOR SECTION (Test Circuit Figure 11) Input Threshold Voltage (Zero Duty Cycle) VTH − 2.5 4.5 V Input Sink Current (V(Pin 3) = 0.7 V) II− 0.3 0.7 − mA DEADTIME CONTROL SECTION (Test Circuit Figure 11) Input Bias Current (Pin 4) (VPin 4 = 0 V to 5.25 V) IIB (DT) − −2.0 −10 mA Maximum Duty Cycle, Each Output, Push−Pull Mode (VPin 4 = 0 V, CT = 0.01 mF, RT = 12 kW) (VPin 4 = 0 V, CT = 0.001 mF, RT = 30 kW) DCmax 45 − 48 45 50 50 % Input Threshold Voltage (Pin 4) (Zero Duty Cycle) (Maximum Duty Cycle) Vth − 0 2.8 − 3.3 − V OSCILLATOR SECTION Frequency (CT = 0.001 mF, RT = 30 kW) fosc − 40 − kHz Standard Deviation of Frequency* (CT = 0.001 mF, RT = 30 kW) sfosc − 3.0 − % Frequency Change with Voltage (VCC = 7.0 V to 40 V, TA = 25°C) Dfosc (DV) − 0.1 − % Frequency Change with Temperature ( DTA = Tlow to Thigh) (CT = 0.01 mF, RT = 12 kW) Dfosc (DT) − − 12 % UNDERVOLTAGE LOCKOUT SECTION Turn−On Threshold (VCC increasing, Iref = 1.0 mA) Vth 5.5 6.43 7.0 V TOTAL DEVICE Standby Supply Current (Pin 6 at Vref, All other inputs and outputs open) (VCC = 15 V) (VCC = 40 V) ICC − − 5.5 7.0 10 15 mA Average Supply Current (CT = 0.01 mF, RT = 12 kW, V(Pin 4) = 2.0 V) (VCC = 15 V) (See Figure 12) − 7.0 − mA * Standard deviation is a measure of the statistical distribution about the mean as derived from the formula, s N n = 1 S (Xn − X)2 N − 1 |
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