M20W BOURNS | Alldatasheet

Document overview

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Technical content

Features

■ 20 watt output power ■ Independently regulated outputs ■ Open-frame design ■ 85 % efficiency ■ 500 V isolation ■ Overvoltage protection ■ Fast transient response ■ Short-circuit protection ■ Remote enable ■ Industry-standard pin-out ■ UL 1950 ■ Bellcore 1089 ■ CISPR 22 Class A ■ EN60950 Electrical Specifications Input Specifications 48 VDC Nom. 75 VDC Max.

40 V at Startup

±0.6 % Vnom (5 Vout) Dynamic Response 3.3 V Output, ±1.5 A step 60 µs (Di/Dt = 1 A/µs)

5 V output, ±1 A step

300 µs (Di/Dt = 1 A/µs) General Specifications Full Power, 200 LFM Dimensions are to the center of the standoff pad. Bottom View STANDOFF 4 PLCS. +Vin +3.3 Vout +Vin 3.3 Vout

5 Vout

3 x 220 µf 10 V 3 x 2200 µf 10 V

3.3 Vreturn

5 Vreturn

-Vin +5 Vout Gnd 100 µf / 100 V EnableGndRemote Enable -Vin 47.50 (1.870) 47.63 (1.875) 2.03 (0.08) 3.30 (.130) 3.30 (.130) 49.02 (1.93) 49.28 (1.94) 1.65 (.065) 1.65 (.065) MILLIMETERS (INCHES)DIMENSIONS = Temperature Derating 16.0 14.0 12.0 10.0 8.0 6.0 4.0 2.0 0.0 01 02 0 3 04 0 5 06 0 7 08 0 90 Total Power (watts) Ambient Temperature, °C Still Air How to Order M 20W -48 D 5-3-3 Configuration M = Module Current/Power (Watts) Input Voltage (Volts) Outputs D = Dual Output Voltage (Volts) The M20W power module is a member of Bourns industrial temperature range, dual- output family. The system designer obtains flexibility in choosing 5 V and 3.3 V components based on the ability of the module to supply either voltage over a wide power range to the load. The output voltages are tightly and independently regulated, thus eliminating the common problem of cross regulation errors between the outputs. The M20W is capable of 20 W combined output power. The module is designed with Bourns’ resonant primary and synchronous secondary topology for enhanced reliability and high efficiency, allowing high-temperature operation.

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