Delta Electronics 10A Design Considerations CON, Features Descriptions, Safety Considerations

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DESIGN CONSIDERATIONS (CON.)

The power module should be connected to a low ac-impedance input source. Highly inductive source impedances can affect the stability of the module. An input capacitance must be placed close to the modules input pins to filter ripple current and ensure module stability in the presence of inductive traces that supply the input voltage to the module.

Safety Considerations

For safety-agency approval the power module must be installed in compliance with the spacing and separation requirements of the end-use safety agency standards.

For the converter output to be considered meeting the requirements of safety extra-low voltage (SELV), the input must meet SELV requirements. The power module has extra-low voltage (ELV) outputs when all inputs are ELV.

The input to these units is to be provided with a maximum 15A time-delay fuse in the ungrounded lead.

FEATURES DESCRIPTIONS

Remote On/Off

The DNM/DNL series power modules have an On/Off pin for remote On/Off operation. Both positive and negative On/Off logic options are available in the DNM/DNL series power modules.

For positive logic module, connect an open collector (NPN) transistor or open drain (N channel) MOSFET between the On/Off pin and the GND pin (see figure 34). Positive logic On/Off signal turns the module ON during the logic high and turns the module OFF during the logic low. When the positive On/Off function is not used, leave the pin floating or tie to Vin (module will be On).

For negative logic module, the On/Off pin is pulled high with an external pull-up 5kΩ resistor (see figure 35). Negative logic On/Off signal turns the module OFF during logic high and turns the module ON during logic low. If the negative On/Off function is not used, leave the pin floating or tie to GND. (module will be On)

Vin Vo

ION/OFF

On/Off

RL

GND

Figure 34: Positive remote On/Off implementation

Rpull-up

Vin Vo

ION/OFF

On/Off

RL

GND

Figure 35: Negative remote On/Off implementation

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.

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Contents Delphi DNM, Non-Isolated Point of Load Parameter DNM04S0A0S10PFD Technical SpecificationsConverter Efficiency vs. Output Current 3.3V out Electrical Characteristics CurvesOutput ripple & noise at 3.3Vin, 2.5V/10A out Turn on delay time at 5Vin, 3.3V/10A out 5Vout Cout =1uF ceramic, 10μF Tantalum Output short circuit current 5Vin, 0.75Vout Design Considerations Test ConfigurationsSafety Considerations Features DescriptionsDesign Considerations CON Remote On/OffOver-Temperature Protection Features Descriptions CONRemote Sense Output Voltage ProgrammingFeature Descriptions CON Voltage MarginingVoltage Tracking Simultaneous Sequential Start-upThermal Considerations Thermal Testing SetupVo=2.5VEither Orientation Thermal CurvesLead Free SAC Process Recommend TEMP. Profile Pick and Place LocationMechanical Drawing Model List Part Numbering System

2.8-5.5Vin, 0.75-3.3V, 10A specifications

Delta Electronics has established itself as a leading provider of power supply solutions, and its latest offering, the Delta Electronics 2.8-5.5Vin, 10A, 0.75-3.3V DC-DC converter, exemplifies the company’s commitment to high efficiency and reliability in power management. This product is particularly suitable for a wide range of applications, including industrial automation, telecommunications, and consumer electronics.

One of the standout features of this DC-DC converter is its wide input voltage range of 2.8 to 5.5 volts. This flexibility allows it to be used in various applications where voltage levels may vary, ensuring compatibility with different systems and reducing the need for additional voltage regulation components. The device is also capable of providing up to 10A of output current, which is ideal for powering high-demand electronic components.

The output voltage range of 0.75 to 3.3 volts makes this converter versatile for diverse operational requirements. Users can easily adjust the output voltage using external resistors, allowing for a customized power solution tailored to specific needs. This adjustability is critical in applications where components may have different voltage requirements, enhancing the overall efficiency of the power system.

Delta’s DC-DC converter employs advanced synchronous rectification technology which significantly improves efficiency by minimizing losses associated with power conversion. The converter achieves efficiencies that can exceed 90%, helping to minimize heat generation and improve the thermal performance of the entire system. This is particularly important in compact designs where space and heat dissipation are critical concerns.

Additionally, the Delta Electronics converter is designed with built-in protections, including overcurrent, overvoltage, and thermal shutdown features. These safety mechanisms ensure reliable operation even in demanding environments, safeguarding both the converter and the connected loads.

In terms of physical characteristics, the converter is packaged in a compact form factor, facilitating easy integration into various systems. Its low profile design enables it to fit into space-constrained applications without compromising on performance.

Overall, Delta Electronics’ 2.8-5.5Vin, 10A, 0.75-3.3V DC-DC converter is an excellent choice for designers seeking a dependable, efficient, and compact power solution for their diverse electronic applications. The combination of wide input voltage range, adjustable output, high efficiency, and robust protection features make it a standout product in the power management market.
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