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TL497AIJ 数据表(PDF) 3 Page - Texas Instruments |
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TL497AIJ 数据表(HTML) 3 Page - Texas Instruments |
3 / 16 page TL497A 500mA PEAK STEPUP, STEPDOWN, INVERTING SWITCHING VOLTAGE REGULATOR SLVS009F − JUNE 1976 − REVISED FEBRUARY 2005 3 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 absolute maximum ratings over operating free-air temperature range (unless otherwise noted)† Supply voltage, VCC (see Note 1) 15 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Output voltage, VO 35 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Input voltage, VI(COMP INPUT) 5 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Input voltage, VI(INHIBIT) 5 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Diode reverse voltage 35 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Power switch current 750 mA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Diode forward current 750 mA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Package thermal impedance, θJA (see Notes 2 and 3): D package 86 °C/W . . . . . . . . . . . . . . . . . . . . . . . . . . . . N package 101 °C/W . . . . . . . . . . . . . . . . . . . . . . . . . . . PW package 113 °C/W . . . . . . . . . . . . . . . . . . . . . . . . . . Lead temperature 1,6 mm (1/16 inch) from case for 60 seconds 260 °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 diode voltages, are with respect to network 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, except for through-hole packages, which use a trace length of zero. recommended operating conditions MIN MAX UNIT Supply voltage, VCC 4.5 12 V High-level input voltage, VIH INHIBIT pin 2.5 V Low-level input voltage, VIL INHIBIT pin 0.8 V Step-up configuration (see Figure 1) VI + 2 30 Output voltage Step-down configuration (see Figure 2) Vref VI − 1 V Output voltage Inverting regulator (see Figure 3) −Vref −25 V Power switch current 500 mA Diode forward current 500 mA Operating free-air temperature range, TA TL497AC 0 70 °C Operating free-air temperature range, TA TL497AI −40 85 °C |
类似零件编号 - TL497AIJ |
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类似说明 - TL497AIJ |
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