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TL598MFKB Folha de dados(PDF) 2 Page - Texas Instruments |
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TL598MFKB Folha de dados(HTML) 2 Page - Texas Instruments |
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2 / 17 page  TL598 PULSEWIDTHMODULATION CONTROL CIRCUITS SLVS053D − FEBRUARY 1988 − REVISED NOVEMBER 2003 2 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 FUNCTION TABLE INPUT/OUTPUT CTRL OUTPUT FUNCTION VI = GND Single-ended or parallel output VI = REF Normal push-pull operation functional block diagram GND SIGNAL REF VCC Reference Regulator Undervoltage Lockout Control 2 GND POWER OUT2 OUT1 VC Pulse-Steering Flip-Flop C1 1D FEEDBACK − + 1IN+ DTC CT RT PWM Comparator Error Amplifier 1 + − Error Amplifier ≈0.1 V DTC Comparator Oscillator OUTPUT CTRL (see Function Table) 6 5 4 1 2 16 15 3 13 11 8 9 10 12 14 7 1IN− 2IN+ 2IN− 0.7 mA absolute maximum ratings over operating free-air temperature range (unless otherwise noted)† Supply voltage, VCC (see Note 1) 41 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Amplifier input voltage, VI VCC + 0.3 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Collector voltage 41 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Output current (each output), sink or source, IO 250 mA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Package thermal impedance, θJA (see Notes 2 and 3): D package 73 °C/W . . . . . . . . . . . . . . . . . . . . . . . . . . . . N package 67 °C/W . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Operating virtual junction temperature, TJ 150 °C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Storage temperature range, Tstg −65 °C to 150°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . † Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. NOTES: 1. All voltage values, except differential voltages, are with respect to the signal ground terminal. 2. Maximum power dissipation is a function of TJ(max), θJA, and TA. The maximum allowable power dissipation at any allowable ambient temperature is PD = (TJ(max) − TA)/θJA. Operating at the absolute maximum TJ of 150°C can impact reliability. 3. The package thermal impedance is calculated in accordance with JESD 51-7. |
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