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IPM24S0B0S Datasheet(PDF) 7 Page - Delta Electronics, Inc. |
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IPM24S0B0S Datasheet(HTML) 7 Page - Delta Electronics, Inc. |
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7 / 12 page  DS_IPM24S0C0_01092009 7 DESIGN CONSIDERATIONS Remote On/Off The IPM series power modules have an On/Off control pin for output voltage remote On/Off operation. The On/Off pin is an open collector/drain logic input signal that is referenced to ground. When On/Off control pin is not used, leave the pin unconnected. The remote on/off pin is internally connected to +5Vdc through an internal pull-up resistor. Figure 27 shows the circuit configuration for applying the remote on/off pin. The module will execute a soft start ON when the transistor Q1 is in the off state. The typical rise for this remote on/off pin at the output voltage of 2.5V and 5.0V are shown in Figure 17 and 18. Vo On/Off Vin GND IPM Q1 RL Figure 19: Remote on/off implementation FEATURES DESCRIPTIONS Over-Current Protection To provide protection in an output over load fault condition, the unit is equipped with internal over-current protection. When the over-current protection is triggered, the unit enters hiccup mode. The units operate normally once the fault condition is removed. Output Voltage Programming The output voltage shall be externally adjustable by use of a Trim pin. The module output shall be adjusted by either a voltage source referenced to ground or an external resistor be connected between trim pin and Vo or ground. To trim-down using an external resistor, connect a resistor between the Trim and Vo pin of the module. To trim up using an external resistor, connect the resistor between the Trim and ground pins of the module. The value of resistor is defined below. The module outputs shall not be adversely affected (regulation and operation) when the Trim pin is left open. IPM can also be programmed by applying a voltage between the TRIM and GND pins (Figure 20). The following equation can be used to determine the value of Vtrim needed for a desired output voltage Vadj: Trim up Rtrim = (Vout-0.7)*1.91 (K Ω ) Vadj-Vout Trim Down Rtrim = (Vadj-0.7)*20 (K Ω ) Vout-Vadj Rtrim is the external resistor in K Ω Vadj is the desired output voltage |
Similar Part No. - IPM24S0B0S |
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Similar Description - IPM24S0B0S |
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