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AHV2815DF Datasheet(PDF) 6 Page - International Rectifier |
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AHV2815DF Datasheet(HTML) 6 Page - International Rectifier |
6 / 9 page 6 www.irf.com AHV28XX Series (28V Input- Single, Dual and Triple Output) Application Information EMI Filter Inhibit Function Connecting the inhibit pin (Pin 2 of single and dual models, pin 8 of triple models) to the input return (pin 10) will cause the converter to shutdown and operate in a low power standby mode. Power consumption in this mode is calculated by multiplying Vin times the input current inhibited, typically 225mW at Vin equal to 28V. The input current inhibited is relatively constant with changes in Vin. The open circuit inhibit pin voltage is typically 11.5V and can be conveniently driven by an open collector driver. An internal pull-up resistor enables the user to leave this pin floating if the inhibit function is not used in their particular application. All models use identical inhibit internal circuits. Forcing inhibit pin to any voltage between 0V and 6V will assure the converter is inhibited. The input current to this pin is 500 µA maximum at Vpin2 = to 0V. The converter can be turned on by opening Pin 2 or forcing a voltage from 10V to 50V. Inhibit pin current from 10V to 50V is less than ± 50 µA. An optional EMI filter ( AFC461) will reduce the input ripple current to levels below the limits imposed by MIL-STD- 461 CEO3. The output voltage of the AHV28XXS can be adjusted upward by connecting a resistor between the Output Adjust (Pin 3) and the Output Common (Pin 4) as shown in Table 1. Table 1: Output Adjustment Resistor Values * Output Adjust (Single Output Models Only) Output Voltage Increase (%) * Resistance (Ohms) Pin 3 to 4 5V 12V 15V None 0 0 0 390 K +1.0% +1.6% +1.7% 145 K +2.0% +3.2% +3.4% 63 K +3.1% +4.9% +5.1% 22 K +4.1% +6.5% +6.8% 0 +5.0% +7.9% +8.3% Standard Microcircuit Drawing Equivalence Table Standard Microcircuit Vendor Cage IR Standard Drawing Number Code Part Number 5962-91773 52467 AHV2805S 5962-92112 52467 AHV2812S 5962-92113 52467 AHV2815S 5962-92114 52467 AHV2812D 5962-92115 52467 AHV2812T 5962-92116 52467 AHV2815T |
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