Our 75 watt quarter brick DC-DC converter features a single output up to 25A, an adjustable output voltage and 90% efficiency. This UL- and CE-approved design also has a compact quarter brick package of 2.28" x 1.45" x 0.50".

INPUT

• Input Voltages:
• 48 Vdc: 36 - 72 Vdc
• Input Filter: L-C Type
• Start Up Time: Nominal Vin and Constant Resistive Load
• Power Up: 25 mS Typ
• Remote ON/OFF: 25 mS Typ
• Negative Logic
• DC-DC ON: Short or OV<Vr<1.2V
• DC-DC OFF: Open or 3.5V<Vr<15V
• Positive Logic
• DC-DC ON: Open or 3.5V<Vr<15V
• DC-DC OFF: Short or OV<Vr<1.2V

OUTPUT

• Voltage Accuracy (FL and Nominal Vin): ±1.5%
• Voltage Adjustability: +10%, -20%
• Line Regulation
• LL to HL at FL: ±0.2%
• Load Regulation
• NL to FL:
• 1.8 Vdc: 5.4 mV, ±0.1%
• 2.5 Vdc: 7.5 mV, ±0.1%
• 3.3 Vdc: 10 mV, ±0.02%
• 5 Vdc: 15 mV, ±0.02%
• Ripple and Noise (20 MHz BW)
• Measured with a 1uF M/C & a 1OuFT/C: 100 mVp-p
• Temperature Coefficient (at FL): ±0.02%/°C, max
• Transient Response, 25% load step change: 200µS

GENERAL

• Efficiency: 85 - 90%
• Isolation Voltage: 1600 Vdc, min.
• Isolation Resistance: 10⁷ Ohms, min.
• Switching Frequency: 270 KHz, typ.
• Protection
• Over Voltage Protection: 120% Vout max.
• Over current protection threshold: 110 - 140% of load
• Short circuit protection: hiccup, automatic recovery

ENVIRONMENTAL

• Operating Base Plate Temperature Range: -40 to 100°C
• Storage Temperature Range: -55 to 125°C
• Humidity, Max, Non-Condensing: 95%

PHYSICAL

• Case Material: Aluminum base-plate
• Weight: 42 g (1.46 oz.)
• Dimensions: 2.28" x 1.45" x 0.50" (57.9 X 36.83 X 12.7 mm)

EMC CHARACTERISTICS

• Conducted Emissions:
• EN55022, Level A
• EN55022, Level B
• Radiated Emissions: EN550224, Level A
• ESD: EN61000-4-2, Perf. Criteria 2
• Radiated Immunity: EN61000-4-3, Perf. Criteria 2
• Fast Transient: EN61000-4-4, Perf. Criteria 2
• Surge: EN61000-4-5, Perf. Criteria 2
• Conducted Immunity: EN61000-4-6, Perf. Criteria 2