NXA025A0XZ

Data Sheet October 5, 2009 NaOSTM NXA025 SIP Non-isolated Power Modules: 10Vdc – 14Vdc Input; 0.8Vdc to 5.5Vdc Output; 25A Output Current RoHS Compliant Features Compliant to RoHS EU Directive 2002/95/EC (-Z versions) Compliant to ROHS EU Directive 2002/95/EC with lead solder exemption (non-Z versions) Delivers up to 25A output current High efficiency – 93% at 3.3V full load Small size and low profile: 31.7 mm x 50.8 mm x 8.50 mm (1.25 in x 2.00 in x 0.335 in) Low output ripple and noise Constant switching frequency (500 kHz) Output voltage programmable from 0.8 Vdc to 5.5Vdc via external resistor Remote On/Off Remote Sense Parallel operation with current sharing (-P option) Output voltage sequencing (multiple modules) Output overvoltage protection Overtemperature protection Output overcurrent protection (non-latching) Wide operating temperature range (-40°C to 85°C) UL* 60950-1Recognized, CSA C22.2 No. 60950-1‡ 03 Certified, and VDE 0805:2001-12 (EN60950-1) Licensed ISO** 9001 and ISO 14001 certified manufacturing facilities † Applications Distributed power architectures Intermediate bus voltage applications Telecommunications equipment Servers and storage applications Networking equipment Enterprise Networks Latest generation IC’s (DSP, FPGA, ASIC) and Microprocessor powered applications Description The NXA025 series SIP (single-in line package) power modules are non-isolated dc-dc converters that can deliver up to 25A of output current with full load efficiency of 93% at 3.3Vdc output voltage. These modules provide a precisely regulated output voltage from 0.8Vdc to 5.5Vdc, programmable via an external resistor. The open-frame construction and small footprint enable designers to develop cost- and space-efficient solutions. Standard features include remote On/Off, adjustable output voltage, remote sense, output voltage sequencing of multiple modules, over current, over voltage, and over temperature protection. * UL is a registered trademark of Underwriters Laboratories, Inc. † ‡ CSA is a registered trademark of Canadian Standards Association. VDE is a trademark of Verband Deutscher Elektrotechniker e.V. ** ISO is a registered trademark of the International Organization of Standards Document No: DS05-034 ver 1.53 PDF name: nxa025_sip_ds.pdf Data Sheet October 5, 2009 NaosTM NXA025 SIP Non-isolated Power Modules: 10 – 14Vdc Input; 0.8Vdc to 5.5Vdc Output; 25A output current Absolute Maximum Ratings Stresses in excess of the absolute maximum ratings can cause permanent damage to the device. These are absolute stress ratings only, functional operation of the device is not implied at these or any other conditions in excess of those given in the operations sections of the data sheet. Exposure to absolute maximum ratings for extended periods can adversely affect the device reliability. Parameter Input Voltage Continuous Operating Ambient Temperature (see Thermal Considerations section) Storage Temperature All Tstg -55 125 °C All TA -40 85 °C Device All Symbol VIN Min -0.3 Max 14 Unit Vdc Electrical Specifications Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature conditions. Parameter Operating Input Voltage Maximum Input Current (VIN=10.0V to 14.0V, IO=IO, max ) Inrush Transient Input Reflected Ripple Current, peak-to-peak (5Hz to 20MHz, 1μH source impedance; VIN, min to VIN, max, IO= IOmax ; See Test configuration section) Input Ripple Rejection (120Hz) All All All It 60 50 2 Device All All Symbol VIN IIN,max Min 10.0 Typ 12.0 Max 14.0 14 1 Unit Vdc Adc As mAp-p dB 2 CAUTION: This power module is not internally fused. An input line fuse must always be used. This power module can be used in a wide variety of applications, ranging from simple standalone operation to being part of a complex power architecture. To preserve maximum flexibility, internal fusing is not included, however, to achieve maximum safety and system protection, always use an input line fuse. The safety agencies require a fastacting fuse with a maximum rating of 30A (see Safety Considerations section). Based on the information provided in this data sheet on inrush energy and maximum dc input current, the same type of fuse with a lower rating can be used. Refer to the fuse manufacturer’s data sheet for further information. LINEAGE POWER 2 Data Sheet October 5, 2009 NaosTM NXA025 SIP Non-isolated Power Modules: 10 – 14Vdc Input; 0.8Vdc to 5.5Vdc Output; 25A output current Electrical Specifications (continued) Parameter Output Voltage Set-point (VIN=VN, min, IO=IO, max, TA=25°C) Output Voltage (Over all operating input voltage, resistive load, and temperature conditions until end of life) Adjustment Range Selected by an external resistor Output Regulation Line (VIN=VIN, min to VIN, max) Load (IO=IO, min to IO, max) Temperature (Tref=TA, min to TA, max) Output Ripple and Noise on nominal output (VIN=VIN, nom and IO=IO, min to IO, max Cout = 2 × 0.47μF ceramic capacitors) RMS (5Hz to 20MHz bandwidth) Peak-to-Peak (5Hz to 20MHz bandwidth) External Capacitance ESR ≥ 1 mΩ ESR ≥ 10 mΩ Output Current Output Current Limit Inception (Hiccup Mode ) Output Short-Circuit Current (VO≤250mV) ( Hiccup Mode ) Efficiency VIN= VIN, nom, TA=25°C IO=IO, max , VO= VO,set VO,set = 0.8Vdc VO, set = 1.2Vdc VO,set = 1.5Vdc VO,set = 1.8Vdc VO,set = 2.0Vdc VO,set = 2.5Vdc VO,set = 3.3Vdc VO,set = 5.5Vdc Switching Frequency Dynamic Load Response (dIo/dt=5A/μs; VIN = VIN, nom; TA=25°C) Load Change from Io= 50% to 100% of Io,max; No external output capacitors Peak Deviation Settling Time (Vo