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AEQ15AF48-6 Datasheet(PDF) 8 Page - Astec America, Inc |
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AEQ15AF48-6 Datasheet(HTML) 8 Page - Astec America, Inc |
8 / 15 page Technical Reference Notes AEQ15AF48 Series (Dual Output Quarter Brick - Baseplate) MODEL: AEQ15AF48 SERIES SHEET 8 OF 15 JUNE 16, 2003 - REVISION 01 Basic Operation and Features INPUT UNDER VOLTAGE LOCKOUT To prevent any instability to the converter, which may affect the end system, the AEQ15 series have been designed to turn-on once VIN is in the voltage range of 34.5-36 VDC. Likewise, it has also been programmed to turn-off when VIN drops down to 30 – 32.5 VDC. OUTPUT VOLTAGE ADJUST/TRIM The converter comes with a TRIM pin (PIN 6), which is used to adjust both outputs simultaneously by as much as 90% to 110% of its set point. This is achieved by connecting an external resistor as described below. To INCREASE the output voltages, external Radj_up resistor should be connected between TRIM PIN (Pin6) and +Vo2 (Pin 4). Please refer to Equation (1) for the VO,adj and Radj_up relationship. Equation (1) where: %VO,adj = percent change in o/p voltage To DECREASE the output voltages, external Radj_down resistor should be connected between TRIM PIN (Pin 6) and O/P Return (Pin 5). Please refer to Equation (2) for the VO,adj and Radj_down relationship. Equation (2) Figure 3. External Trim resistor setup to increase o/p. Figure 4. External Trim resistor setup to decrease o/p. |
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