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| Powering Communications and Technology OBS SERIES 25 WATT FEATURES * Industry standard package * * 24 and 48V input versions * * 25W output power * 100C 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 100C 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 s 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 +100C -40 to +125C 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 25C, normal line, and full load, unless otherwise stated. Soldering Conditions: I/O pins, 260C, 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 performance should be validated for specific application. 7 8 (Dimensions as listed unless otherwise specified.) 2 OPTIONS Powering Communications and Technology When ordering equipment options, use the following suffix information. Select the option(s) that you prefer and add them to the model number. Example ordering options are located below the options table. OPTIONS Negative Logic SUFFIX N APPLICABLE SERIES HAS, HBD, HBS, HES, HLS, LES, QBS, QES, QLS, TES, TQD HAS, HBD, HBS, HES, HLS, QBS, QES, QLS XWS, XWD, XWT IAS, LES IAD, IAS, LES, SMS IAS, LES SMS Encapsulated EWS, IWS, OWS Standard Pin Length is 0.180" (4.6mm) 8 9 1H 1V 2H 2V 3H 3V All Units (Except SMS) All Units (Except SMS) All Units (Except DIP, HLS, HLD, QLS, SIP, SM TLD, and TKD Packages) All Units (Except DIP, HLS, HLD, QLS, SIP, SM TLD, and TKD Packages) All Units (Except DIP, HLS, HLD, QLS, SIP, SM TLD, and TKD Packages) All Units (Except DIP, HLS, HLD, QLS, SIP, SM TLD, and TKD Packages) All Units (Except DIP, HLS, HLD, QLS, SIP, SM TLD, and TKD Packages) All Units (Except DIP, HLS, HLD, QLS, SIP, SM TLD, and TKD Packages) REMARKS TTL "Low" Turns Module ON TTL "High" Turns Module OFF Lucent Compatible Trim Terminal Strip Trim Enable Trim and Enable Current Share Headerless PIN LENGTH AND HEATSINK OPTIONS 0.110" (2.8mm) Pin Length 0.150" (3.8mm) Pin Length 0.24" (6.1mm) Horizontal Heatsink 0.24" (6.1mm) Vertical Heatsink 0.45" (11.4mm) Horizontal Heatsink 0.45" (11.4mm) Vertical Heatsink 0.95" (24.1mm) Horizontal Heatsink 0.95" (24.1mm) Vertical Heatsink T TS 1 2 3 4 Y Includes Thermal Pad Includes Thermal Pad Includes Thermal Pad Includes Thermal Pad Includes Thermal Pad High Density - Board Mounted Power Division Includes Thermal Pad Example Options: HBS050ZG-ANT3V = HBS050ZG-A with negative logic, Lucent compatible trim, and 0.95" vertical heatsink. LES015YJ-3N = LES015YJ with optional trim and enable, negative logic. QBS066ZG-AT8 = QBS066ZG-A with Lucent compatible trim and 0.110" pin length. NUCLEAR AND MEDICAL APPLICATIONS - Power-One products are not authorized for use as critical components in life support systems, equipment used in hazardous environments, or nuclear control systems without the express written consent of the President of Power-One, Inc. TECHNICAL REVISIONS - The appearance of products, including safety agency certifications pictured on labels, may change depending on the date manufactured. Specifications are subject to change without notice. 3 |
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