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TL598N Datasheet(PDF) 6 Page - Texas Instruments |
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TL598N Datasheet(HTML) 6 Page - Texas Instruments |
6 / 10 page TL598 PULSE-WIDTH-MODULATION CONTROL CIRCUITS SLVS053C – FEBRUARY 1988 – REVISED JULY 1999 6 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 electrical characteristics over recommended operating free-air temperature range, VCC = 15 V (unless otherwise noted) switching characteristics, TA = 25°C (see Note 4) PARAMETER TEST CONDITIONS TL598C, TL598Q UNIT PARAMETER TEST CONDITIONS MIN TYP MAX UNIT Output-voltage rise time CL = 1500 pF, VC = 15 V, VCC = 15 V, 60 150 ns Output-voltage fall time See Figure 2 35 75 ns NOTE 4. Pulse-testing techniques must be used that maintain the junction temperature as close to the ambient temperature as possible. electrical characteristics, VCC = 15 V, TA = 25°C reference section (see Note 4) PARAMETER TEST CONDITIONS TL598Y UNIT PARAMETER TEST CONDITIONS MIN TYP† MAX UNIT Output voltage (REF) IO = 1 mA 5 V Input regulation VCC = 7 V to 40 V 2 mV Output regulation IO = 1 mA to 10 mA 1 mV Output-voltage change with temperature 2 mV/V Short-circuit output current‡ REF = 0 V –48 mA † All typical values except for parameter changes with temperature are at TA = 25°C. ‡ Duration of the short circuit should not exceed one second. NOTE 4. Pulse-testing techniques that maintain the junction temperature as close to the ambient temperature as possible must be used. oscillator section, CT = 0.001 µF, RT = 12 kΩ (see Figure 1) (see Note 4) PARAMETER TEST CONDITIONS TL598Y UNIT PARAMETER TEST CONDITIONS MIN TYP MAX UNIT Frequency 100 kHz Standard deviation of frequency§ All values of VCC, CT, RT, TA constant 100 Hz/kHz Frequency change with voltage VCC = 7 V to 40 V, 1 Hz/kHz § Standard deviation is a measure of the statistical distribution about the mean as derived from the formula: s + N n +1 xn–X 2 N–1 NOTE 4. Pulse-testing techniques that maintain the junction temperature as close to the ambient temperature as possible must be used. error amplifier section (see Note 4) PARAMETER TEST CONDITIONS TL598Y UNIT PARAMETER TEST CONDITIONS MIN TYP MAX UNIT Input offset voltage Feedback = 2.5 V 2 mV Input offset current Feedback = 2.5 V 25 nA Input bias current Feedback = 2.5 V 0.2 µA Open-loop voltage amplification ∆VO (FEEDBACK) = 3 V, VO (FEEDBACK) = 0.5 V to 3.5 V 95 dB Unity-gain bandwidth 800 kHz Common-mode rejection ratio VCC = 40 V, ∆VIC = 6.5 V, 80 dB Output sink current (FEEDBACK) FEEDBACK = 0.5 V 0.7 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 NOTE 4. Pulse-testing techniques that maintain the junction temperature as close to the ambient temperature as possible must be used. |
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