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UC494AAC Fiches technique(PDF) 3 Page - Texas Instruments |
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UC494AAC Fiches technique(HTML) 3 Page - Texas Instruments |
3 / 5 page ELECTRICAL CHARACTERISTICS: PARAMETER TEST CONDITION MIN TYP MAX UNITS Deadtime Control Section (cont.) (Output Control Connected to VREF) Input Threshold Voltage (Pin 4) Zero Duty-Cycle 3 3.3 V Maximum Duty-Cycle 0 V Amplifier Section Input Offset Voltage VO (PIN 3) = 2.5V 2 10 mV Input Offset Current VO (PIN 3) =2.5V 25 250 nA Input Bias Current VO (PIN 3) = 2.5V -0.2 -1 µA Common-Mode Input Voltage Range VCC = 7V to 40V .03 to VCC -2 V Open Loop Voltage Gain ∆VO = 3V, VO = 0.5V to 3.5 V 70 95 dB Unity Gain Bandwidth 800 kHz Common-Mode Rejection Ratio VCC = 40V, TA = 25 °C65 80 dB Output Sink Current (Pin 3) VID = -15mV to -5V, V(PIN 3) = 0.7V 0.3 0.7 mA Output Source Current (Pin 3) VID = 15mV to 5V, V(PIN 3) = 3.5V -2 mA Output Section Collector Off-State Current VCE = 40V, VCC = 40V 2 100 µA Emitter Off-State Current VCC = VC = 40V, VE = 0 -100 µA Collector - Emitter Saturation Voltage Common-Emitter VE = 0, IC = 200mA 1.1 1.3 V Emitter-Follower VC = 15V, IE = -200mA 1.5 2.5 V Output Control Input Current VI = VREF 3.5 mA PWM Comparator Section Input Threshold Voltage (Pin 3) Zero Duty-Cycle 4 4.5 V Input Sink Current (Pin 3) V(PIN 3) = 0.7V 0.3 0.7 mA Steering Control (UC495A, See Function Table) Input Current V(PIN 13) = 0.4V, Q1 ACTIVE -200 µA V(PIN 13) = 2.4V, Q2 ACTIVE 300 µA Deadband 500 mV Zener Diode Circuit (UC495A) Breakdown Voltage VCC = 45V, IZ = 2mA 36 39 45 V Sink Current V(PIN 15) = 1V 0.2 0.3 0.6 mA Total Device Standby Supply Current Pin 6 at VREF, All other inputs and outputs open VCC = 15V 6 10 mA VCC = 40V 9 15 mA Under Voltage Lockout 3.5 6.5 V Hysteresis 300 mV Switching Characteristics (TA = 25 °C) Output Voltage Rise Time Common-Emitter Configuration 100 200 ns Output Voltage Fall Time RL = 68 Ω, CL = 15pF 25 100 ns Output Voltage Rise Time Emitter-Follower Configuration 100 200 ns Output Voltage Fall Time RL = 68 Ω, CL=15pF 40 100 ns Note 1: Duration of the short circuit should not exceed one second. Note 2: Frequency for other values of CT and RT is approximately f = 1.1 RTCT Note 3: Standard deviation is a measure of the statistical distribution about the mean as derived from the formula: σ = √nΣ(Xn−X)2 n = 1 n − 1 . UC494A/AC UC495A/AC Unless otherwise stated, over recommended operating free-air temperature range, VCC = 15V, f = 10kHz, TA = TJ. 3 |
Numéro de pièce similaire - UC494AAC |
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Description similaire - UC494AAC |
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