Maker : Power-One
Part No. : OBS025ZJ

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Product Information

Powering Communications and Technology OBS SERIES 25 WATT FEATURES • Industry standard package • • 24 and 48V input versions • • 25W output power • 100°C baseplate operation • • TECHNICAL SPECIFICATIONS Input Voltage Range 24 VDC Nominal 48 VDC Nominal Reflected Ripple Input Reverse Voltage Protection DESCRIPTION OBS single output DC/DC converters provide up to 25 Watts of output power in an industry standard package and footprint. The OBS units feature excellent efficiency, sixsided shielding, and fixed switching frequency. With 100°C case operation, the OBS converters are especially suited to telecom, networking, and industrial applications. These units are 100% surface-mount construction and fully compatible with production board washing processes. Trim And Enable Pins Fixed Frequency 1500V Isolation 6-Sided Shielding EFFICIENCY % Efficiency vs. Load (24V Input) 95 90 85 80 EFF. OBS025YG 75 70 65 10 20 30 40 50 60 70 80 90 100 LO AD % EFF. OBS025YH 18 - 36 VDC 34 - 75 VDC 25 mA Shunt Diode EFF. OBS025YJ Output Setpoint Accuracy Line Regulation Vin Min - Vin Max., Iout Rated Load Regulation Iout Min. - Iout Max., Vin Nom. Minimum Output Current Dynamic Regulation, Loadstep Pk Deviation Settling Time Voltage Trim Range Short Circuit / Overcurrent Protection Current Limit Threshold Range, % of Iout Rated OVP Trip Range ±1% 0.2% Vout 0.5% Vout 10 % Iout Rated 25% Iout 4% Vout 500 µs ±10% Iout Rated Hiccup 110 - 140% 115 - 140%Vout Nom. Hiccup Efficiency vs. Load (48V Input) 95 90 85 EFFICIENCY % 80 75 70 65 60 EFF. OBS017ZE EFF. OBS025ZG High Density - Board Mounted Power Division OVP EFF. OBS025ZH General Turn-On Time: 24 & 48Vin Remote Shutdown Remote Shutdown Reference Switching Frequency Isolation Input - Output Input - Case (24 Vin units) Output - Case (48 V in units) Temperature Coefficient Case Temperature Operating Range Storage Range Humidity Max., Non-Condensing Vibration, 3 Axes, 5 Min Each MTBF† (Bellcore TR-NWT-000332) Safety Weight (Approx.) 10 ms Positive Vin Negative 400 kHz 1500 VDC 500 VDC 500 VDC 0.03%/°C -40 to +100°C -40 to +125°C 95% 5 g, 10 - 55 Hz 1.8 x 106 hrs UL, cUL, TUV 1.9 oz 55 10 20 30 40 50 60 70 80 90 100 LOAD % Notes † MTBF predictions may vary slightly from model to model. Specifications typically at 25°C, normal line, and full load, unless otherwise stated. Soldering Conditions: I/O pins, 260°C, ten seconds; fully compatible with commercial wave-soldering equipment. Units are water-washable and fully compatible with commercial spray or immersion post wave-solder washing equipment. 1 Powering Communications and Technology MODELS - (See the last page of Section for options.) Selection Chart Model OBS025YH OBS025YJ OBS017ZE OBS025ZG OBS025ZH OBS025ZJ Vin (Volts) 24 24 48 48 48 48 Vin Range (Volts) 18 - 36 18 - 36 34 - 75 34 - 75 34 - 75 34 - 75 Iin Max.* (Amps) 1.90 1.90 0.60 0.94 0.92 0.92 Vout (Volts) 12 15 3.3 5 12 15 OBS SERIES 25 WATT Iout Rated (Amps) 2.1 1.7 5.0 5.0 2.1 1.7 Ripple & Noise Pk-Pk (mV) 120 150 75 75 120 150 Efficiency Typ. ** 88% 87% 81% 83% 88% 88% * Maximum input current at minimum input voltage, maximum rated output power. ** At nominal Vin, rated output. MECHANICAL DRAWING 2.00" (50.8mm) 0.18" MIN. (4.6mm) 5 1.100"(27.9mm) DIA 0.040" (1.0mm) 0.700"(17.8mm) 2.00" (50.8mm) 0.600"(15.2mm) 0.400"(10.2mm) 0.200"(5.1mm) 0 1 2 3 4 6 BOTTOM VIEW 7 0.300"(7.6mm) 8 -0.100"(-2.5mm) -0.50"(-12.7mm) 1.800" (45.7mm) 0 0.42" High Density - Board Mounted Power Division -0.10" (-2.5mm) (10.7mm) Thermal Impedance Natural Convection 100 LFM 200 LFM 300 LFM 400 LFM 10.3 7.7 6.3 5.1 4.0 °C/W °C/W °C/W °C/W °C/W Pin 1 2 3 4 5 6 Function +Vin -Vin No Conn. Enable No Pin +Vout -Vout Trim Tolerances Inches: .XX ± 0.020 .XXX ± 0.010 Pin: ± 0.002 Case: + 0.04, - 0.00 (Millimeters) .X ± 0.5 .XX ± 0.25 ± 0.05 + 1.0, - 0.00 Note: Thermal impedance data is dependent on many environmental factors. The exact thermal p...

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