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IPM04S0A0R10FA Datasheet(PDF) 10 Page - Delta Electronics, Inc. |
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IPM04S0A0R10FA Datasheet(HTML) 10 Page - Delta Electronics, Inc. |
10 / 15 page DS_IPM04S0A010_12182006 10 The amount of power delivered by the module is the voltage at the output terminals multiplied by the output current. When using the trim feature, the output voltage of the module can be increased, which at the same output current would increase the power output of the module. Care should be taken to ensure that the maximum output power of the module must not exceed the maximum rated power (Vo.set x Io.max ≤ P max). Voltage Margining Output voltage margining can be implemented in the IPM modules by connecting a resistor, Rmargin-up, from the Trim pin to the ground pin for margining-up the output voltage and by connecting a resistor, Rmargin-down, from the Trim pin to the output pin for margining-down. Figure 31 shows the circuit configuration for output voltage margining. If unused, leave the trim pin unconnected. Vo On/Off Vin GND Trim IPM Q2 Q1 Rmargin-up Rmargin-down Rtrim Figure 31: Circuit configuration for output voltage margining FEATURE DESCRIPTIONS (CON.) Table 1 provides Rtrim values required for some common output voltages, while Table 2 provides value of external voltage source, Vtrim, for the same common output voltages. By using a 0.5% tolerance resistor, set point tolerance of ±2.5% can be achieved as specified in the electrical specification. Table 1 VO (V) Rtrim (Ω) 0.9 Open 1.2 23.146K 1.5 11.479K 1.8 7.590K 2.5 4.188K 3.3 2.729K Table 2 VO (V) Vtrim (V) 0.9 0.7000 1.2 0.6943 1.5 0.6887 1.8 0.6831 2.5 0.6700 3.3 0.6551 |
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