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TL494 数据表(PDF) 6 Page - Texas Instruments |
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TL494 数据表(HTML) 6 Page - Texas Instruments |
6 / 33 page TL494 SLVS074G – JANUARY 1983 – REVISED JANUARY 2015 www.ti.com 7.8 Electrical Characteristics, Output Section PARAMETER TEST CONDITIONS MIN TYP(1) MAX UNIT Collector off-state current VCE = 40 V, VCC = 40 V 2 100 μA Emitter off-state current VCC = VC = 40 V, VE = 0 –100 μA Common emitter VE = 0, IC = 200 mA 1.1 1.3 Collector-emitter saturation voltage V Emitter follower VO(C1 or C2) = 15 V, IE = –200 mA 1.5 2.5 Output control input current VI = Vref 3.5 mA (1) All typical values, except for temperature coefficient, are at TA = 25°C. 7.9 Electrical Characteristics, Dead-Time Control Section See Figure 5 PARAMETER TEST CONDITIONS MIN TYP(1) MAX UNIT Input bias current (DEAD-TIME CTRL) VI = 0 to 5.25 V –2 –10 μA VI (DEAD-TIME CTRL) = 0, CT = 0.01 μF, Maximum duty cycle, each output 45% — RT = 12 kΩ Zero duty cycle 3 3.3 Input threshold voltage (DEAD-TIME CTRL) V Maximum duty cycle 0 (1) All typical values, except for temperature coefficient, are at TA = 25°C. 7.10 Electrical Characteristics, PWM Comparator Section See Figure 5 PARAMETER TEST CONDITIONS MIN TYP(1) MAX UNIT Input threshold voltage (FEEDBACK) Zero duty cyle 4 4.5 V Input sink current (FEEDBACK) V (FEEDBACK) = 0.7 V 0.3 0.7 mA (1) All typical values, except for temperature coefficient, are at TA = 25°C. 7.11 Electrical Characteristics, Total Device PARAMETER TEST CONDITIONS MIN TYP(1) MAX UNIT VCC = 15 V 6 10 RT = Vref, Standby supply current mA All other inputs and outputs open VCC = 40 V 9 15 Average supply current VI (DEAD-TIME CTRL) = 2 V, See Figure 5 7.5 mA (1) All typical values, except for temperature coefficient, are at TA = 25°C. 7.12 Switching Characteristics TA = 25°C PARAMETER TEST CONDITIONS MIN TYP(1) MAX UNIT Rise time 100 200 ns Common-emitter configuration, See Figure 7 Fall time 25 100 ns Rise time 100 200 ns Emitter-follower configuration, See Figure 8 Fall time 40 100 ns (1) All typical values, except for temperature coefficient, are at TA = 25°C. 6 Submit Documentation Feedback Copyright © 1983–2015, Texas Instruments Incorporated Product Folder Links: TL494 |
类似零件编号 - TL494_15 |
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类似说明 - TL494_15 |
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