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DNM12S0A0S10PFB Datasheet(PDF) 11 Page - Delta Electronics, Inc. |
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DNM12S0A0S10PFB Datasheet(HTML) 11 Page - Delta Electronics, Inc. |
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11 / 16 page  DS_DNM04SIP10_05292006 11 The DNL family has 3 different option codes for TRACK function. Option code A: the output voltage TRACK characteristic can be achieved when the output voltage of PS2 follows the output voltage of PS1 on a volt-to-volt basis. (Figure 41) Option code B: No TRACK function Option code C: Implementation of advanced power tracking techniques is based on connecting the power good signal or selecting proper value for external resistor R1 (Figure 40 to Figure 43). Figure 40: Sequential Figure 41: Simultaneous Figure 42: Ratio-metric Figure 43: Ratio-metric FEATURE DESCRIPTIONS (CON.) 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 DNL modules by connecting a resistor, R margin-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 39 shows the circuit configuration for output voltage margining. If unused, leave the trim pin unconnected. A calculation tool is available from the evaluation procedure which computes the values of R margin-up and Rmargin-down for a specific output voltage and margin percentage. Vo On/Off Vin GND Trim Q2 Q1 Rmargin-up Rmargin-down Rtrim Figure 39: Circuit configuration for output voltage margining Voltage Tracking The DNM/DNL family was designed for applications that have output voltage tracking requirements during power-up and power-down. The devices have a TRACK pin to implement three types of tracking method: sequential, ratio-metric and simultaneous. TRACK simplifies the task of supply voltage tracking in a power system by enabling modules to track each other, or any external voltage, during power-up and power-down. By connecting multiple modules together, customers can get multiple modules to track their output voltages to the voltage applied on the TRACK pin. The DNL family has 3 different option codes for TRACK function PS1 PS1 PS1 PS2 PS2 PS1 PS1 PS2 PS2 PS2 PS2 PS1 PS1 PS2 PS2 -V△ -V△ PS1 |
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