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S48SA1R810NRFC Datasheet(PDF) 8 Page - Delta Electronics, Inc. |
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S48SA1R810NRFC Datasheet(HTML) 8 Page - Delta Electronics, Inc. |
8 / 13 page DS_S48SA1R212_05122006 percentage output voltage change △Vo% is defined as: [] ΚΩ − ∆ = − 62 % Vo up − ∆ + 1089 %) 100 ( 9 . 15 Vo x. When trim-up +10% (1.2V X 1.1 = 1.32V) Rtrim E [] ΚΩ = − = − 4 62 10 up − + 1089 ) 10 100 ( 9 . 15 Care should be taken to ensure that the maximum EATURES DESCRIPTIONS (CON.) e set point, the Rtrim output power of the module remains at or below the maximum rated power. F utput Voltage Adjustment (TRIM) O o increase or decrease the output voltag T modules may be connected with an external resistor between the TRIM pin and either the Vo+ or Vo -. The TRIM pin should be left open if this feature is not used. Figure 15: Circuit configuration for trim-down (decrease output ternal resistor is connected between the TRIM voltage) the ex If and Vo- pins, the output voltage set point decreases. The external resistor value required to obtain a percentage of output voltage change △Vo% is defined as: [] ΚΩ − ∆ = − 62 % Vo down 1089 x. When trim-down –10% (1.2V X 0.9 = 1.08V) Rtrim E [] ΚΩ = − = − 9 . 46 62 10 1089 down Rtrim Figure 16: Circuit configuration for trim-up (increase output the external resistor is connected between the TRIM voltage) If and Vo+ pins, the output voltage set point increases. The external resistor value required to obtain a 8 |
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