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TL594INSR Arkusz danych(PDF) 6 Page - Texas Instruments |
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TL594INSR Arkusz danych(HTML) 6 Page - Texas Instruments |
6 / 16 page TL594 PULSEWIDTHMODULATION CONTROL CIRCUIT SLVS052F − APRIL 1988 − REVISED NOVEMBER 2003 6 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 electrical characteristics over recommended operating free-air temperature range, VCC = 15 V, (unless otherwise noted) (continued) dead-time control section (see Figure 2) PARAMETER TEST CONDITIONS TL594C, TL594I UNIT PARAMETER TEST CONDITIONS MIN TYP† MAX UNIT Input bias current VI = 0 to 5.25 V −2 −10 µA Maximum duty cycle, each output DTC = 0 V 0.45 Input threshold voltage Zero duty cycle 3 3.3 V Input threshold voltage Maximum duty cycle 0 V † All typical values, except for parameter changes with temperature, are at TA = 25°C. output section PARAMETER TEST CONDITIONS TL594C, TL594I UNIT PARAMETER TEST CONDITIONS MIN TYP† MAX UNIT VC = 40 V, VE = 0 V, VCC = 40 V 2 100 Collector off-state current DTC and OUTPUT CTRL = 0 V, VC = 15 V, VE = 0 V, VCC = 1 to 3 V 4 200 µA Emitter off-state current VCC = VC = 40 V, VE = 0 −100 µA Collector-emitter saturation voltage Common emitter VE = 0, IC = 200 mA 1.1 1.3 V Collector-emitter saturation voltage Emitter follower VC = 15 V, IE = −200 mA 1.5 2.5 V Output control input current VI = Vref 3.5 mA † All typical values, except for parameter changes with temperature, are at TA = 25°C. pwm comparator section (see Figure 2) PARAMETER TEST CONDITIONS TL594C, TL594I UNIT PARAMETER TEST CONDITIONS MIN TYP† MAX UNIT Input threshold voltage, FEEDBACK Zero duty cycle 4 4.5 V Input sink current, FEEDBACK FEEDBACK = 0.5 V 0.3 0.7 mA † All typical values, except for parameter changes with temperature, are at TA = 25°C. undervoltage lockout section (see Figure 2) PARAMETER TEST CONDITIONS‡ TL594C, TL594I UNIT PARAMETER TEST CONDITIONS‡ MIN MAX UNIT Threshold voltage TA = 25°C 6 V Threshold voltage ∆TA = MIN to MAX 3.5 6.9 V Hysteresis§ 100 mV ‡ For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions. § Hysteresis is the difference between the positive-going input threshold voltage and the negative-going input threshold voltage. PARAMETER TEST CONDITIONS TL594C, TL594I UNIT PARAMETER TEST CONDITIONS MIN TYP† MAX UNIT Standby supply current RT at Vref, VCC = 15 V 9 15 mA Standby supply current RT at Vref, All other inputs and outputs open VCC = 40 V 11 18 mA Average supply current DTC = 2 V, See Figure 2 12.4 mA † All typical values, except for parameter changes with temperature, are at TA = 25°C. |
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