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TL598QDR Datasheet(PDF) 4 Page - Texas Instruments |
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TL598QDR Datasheet(HTML) 4 Page - Texas Instruments |
4 / 17 page TL598 PULSEWIDTHMODULATION CONTROL CIRCUITS SLVS053D − FEBRUARY 1988 − REVISED NOVEMBER 2003 4 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 electrical characteristics over recommended operating free-air temperature range, VCC = 15 V (unless otherwise noted) (continued) error amplifier section (see Note 4) PARAMETER TEST CONDITIONS MIN TYP† MAX UNIT Input offset voltage FEEDBACK = 2.5 V 2 10 mV Input offset current FEEDBACK = 2.5 V 25 250 nA Input bias current FEEDBACK = 2.5 V 0.2 1 µA Common-mode input voltage range VCC = 7 V to 40 V 0 to VCC−2 V Open-loop voltage amplification ∆VO (FEEDBACK) = 3 V, VO (FEEDBACK) = 0.5 V to 3.5 V 70 95 dB Unity-gain bandwidth 800 kHz Common-mode rejection ratio VCC = 40 V, ∆VIC = 6.5 V, TA = 25°C 65 80 dB Output sink current (FEEDBACK) FEEDBACK = 0.5 V 0.3 0.7 mA Output source current (FEEDBACK) FEEDBACK = 3.5 V −2 mA Phase margin at unity gain FEEDBACK = 0.5 V to 3.5 V, RL = 2 kΩ 65 ° Supply-voltage rejection ratio FEEDBACK = 2.5 V, ∆VCC = 33 V, RL = 2 kΩ 100 dB † All typical values, except for parameter changes with temperature, are at TA = 25°C. NOTE 4. Pulse-testing techniques that maintain the junction temperature as close to the ambient temperature as possible must be used. electrical characteristics over recommended operating free-air temperature range, VCC =15V (unless otherwise noted) undervoltage lockout section (see Note 4) PARAMETER TEST CONDITIONS‡ MIN MAX UNIT Threshold voltage TA = 25°C 4 6 V Threshold voltage ∆TA = full range 3.5 6.9 V Hysteresis§ TA = 25°C 100 mV Hysteresis§ TA = full range 50 mV ‡ Full range is 0°C to 70°C. § Hysteresis is the difference between the positive-going input threshold voltage and the negative-going input threshold voltage. NOTE 4. Pulse-testing techniques must be used that maintain the junction temperature as close to the ambient temperature as possible. output section (see Note 4) PARAMETER TEST CONDITIONS MIN MAX UNIT High-level output voltage VCC = 15 V, IO = −200 mA 12 V High-level output voltage VCC = 15 V, VC = 15 V IO = −20 mA 13 V Low-level output voltage VCC = 15 V, IO = 200 mA 2 V Low-level output voltage VCC = 15 V, VC = 15 V IO = 20 mA 0.4 V Output-control input current VI = Vref 3.5 mA Output-control input current VI = Vref VI = 0.4 V 100 µA NOTE 4. Pulse-testing techniques must be used that maintain the junction temperature as close to the ambient temperature as possible. |
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