• VHB75-Single Output Half Brick DC-DC Converter Features ·37.5W-75W isolated output ·Efficiency to 85% ·300KHz switching frequency ·2:1 input range ·Regulated outputs ·Continuous short circuit protection ·Industry standard half-brick package ·Five-sided metal case Input Input Voltage Range 12V 9-18V 24V 18-36V 48V 36-75V 12 Vin power up 8.8V power down 8V 24Vin power up 17V power down 16V 48Vin power down 34V power down 32.5V Under Voltage Lockout Positive Logic Remote ON/OFF Input Filter (see note 4&5) PI Type Output Voltage Accuracy Transient Response: 25% Step Load Change External Trim Adj. Range Ripple & Noise 20MHz BW, 2.5V, 3.3V, 5V ±1% max. <500µ sec. ±10% 20mV RMS., max 75mV pk-pk., max 30mV RMS., max 100mV pk-pk., max 100mV RMS., max 240mV pk-pk, max ±0.03%/°C Continuous ±0.2% max ±0.2% max 115-140% 110-150% Nominal Output 12V & 15V 24V Temperature Coefficient Short Circuit Protection Line Regulation 1 Load Regulation 2 Over Voltage Protection trip Range, % Vo nom. Current Limit General Specifications Efficiency Isolation Voltage see table 1500VDC min. 1500VDC min. 1500VDC min. Input/Output Input/Case Output/Case 10 7 Ohm min. Isolation Resistance Switching Frequency 12-24Vin 400KHz, Typ. 48Vin 300KHz, Typ Operating Case Temperature -40°C to +100°C Storage Temperature -55°C to +105°C Thermal Shutdown, Case Temp. 100°C Typ. Dimensions 2.28x2.40x0.50 inches Case Material aluminum (57.9x61.0x12.7mm) V-Infinity, LLC, 9615 SW Allen Blvd Suite 103, Beaverton, OR 97005 www.v-infinity.com 1-866-372-1258 • VHB75-Single Output Half Brick DC-DC Converter NOTES: 1. Measured from high line to low line 2. Measured from full load to zero load 3. Logic compatibility...open collector ref to -input Module ON...open circuit Module OFF...<0.8Vdc 4. Suffix “N” to the model number with negative logic remote on/off Model Number VHB75-D12-S2R5 VHB75-D12-S3R3 VHB75-D12-S5 VHB75-D12-S12 VHB75-D12-S15 VHB75-D12-S24 Input Voltage 9-18 VDC 9-18 VDC 9-18 VDC 9-18 VDC 9-18 VDC 9-18 VDC Output Voltage 2.5VDC 3.3VDC 5VDC 12VDC 15VDC 24VDC Output Current 15A 15A 15A 6.25A 5A 3.13A VHB75-D24-S2R5 VHB75-D24-S3R3 VHB75-D24-S5 VHB75-D24-S12 VHB75-D24-S15 VHB75-D24-S24 VHB75-D48-S2R5 VHB75-D48-SR33 VHB75-D48-S5 VHB75-D48-S12 VHB75-D48-S15 VHB75-D48-S24 18-36 18-36 18-36 18-36 18-36 18-36 36-75 36-75 36-75 36-75 36-75 36-75 2.5VDC 3.3VDC 5VDC 12VDC 15VDC 24VDC 2.5VDC 3.3VDC 5VDC 12VDC 15VDC 24VDC 15A 15A 15A 6.25A 5A 3.13A 15A 15A 15A 6.25A 5A 3.13A VDC VDC VDC VDC VDC VDC VDC VDC VDC VDC VDC VDC I nput Current No Load Full Load 50mA 4110mA 50mA 5290mA 50mA 7715mA 50mA 7440mA 50mA 7440mA 50mA 7440mA 50mA 50mA 50mA 50mA 50mA 50mA 50mA 50mA 50mA 50mA 50mA 50mA 2029mA 2610mA 3810mA 3675mA 3675mA 3640mA 1015mA 1305mA 1883mA 1838mA 1838mA 1820mA Effic. 76% 78% 81% 84% 84% 84% Case HB HB HB HB HB HB 77% 79% 82% 85% 85% 86% 77% 79% 83% 85% 86% 86% HB HB HB HB HB HB HB HB HB HB HB HB Case HB Pin Connection Pin 1. 2. 3. 4. 5. 6. 7. 8. 9. V-Infinity, LLC, 9615 SW Allen Blvd Suite 103, Beaverton, OR 97005 www.v-infinity.com Function Vin ON/OFF NC -Vin -Vout -Sense Trim +Sense +Vout 1-866-372-1258 • VHB75-Single Output Half Brick DC-DC Converter Application Notes Derating: The operating case temperature range of the VHB75 series is -40°C to +100°C. When operating the VHB75, proper derating or cooling is needed. Following is the derating curve of VHB75 without heat sink. Where: The power dissapation (Pd) is Pd= Pi - Po = Po (1-n )/ n The thermal resistances are listed below. The temperature rise (∆T): ∆T = Pd * Rca Remote ON/OFF Control The VHB75 series allows the user to switch the module on and off electronically with the remote on/off feature. The VHB75 series is available with “positive logic” or “negative logic” options. V-Infinity, LLC, 9615 SW Allen Blvd Suite 103, Beaverton, OR 97005 www.v-infinity.com 1-866-372-1258 • VHB75-Single Output Half Brick DC-DC Converter External Output Trimming Output may optionally be externally trimmed (±10%) with a fixed resistor or an external trimpot as shown. Output Noise The output noise is measured with a 10µF tantalum capacitor and a 1.0µF ceramic capacitor across the output. V-Infinity, LLC, 9615 SW Allen Blvd Suite 103, Beaverton, OR 97005 www.v-infinity.com 1-866-372-1258