Advance Data Sheet August 1997 NH050x-LP Series Power Modules: 5 Vdc Input; 1.5 Vdc to 3.3 Vdc Output; 15 A Features The NH050x-LP Power Modules use advanced, surface-mount technology and deliver high-quality, compact, dc-dc conversion at an economical price. Applications Distributed power architectures Servers Workstations Desktop computers Non-isolated output Small size: 76.2 mm x 25.4 mm x 8.6 mm (3.00 in. x 1.00 in. x 0.34 in.) High efficiency: 91% typical Constant frequency Remote sense Remote on/off Output voltage adjustment: 90% to 110% of VO, nom Overcurrent protection Thermal shutdown Synchronization capability Parallelable (current sharing) Interleaved control Designed to meet EN60950 UL* Recognition, CSA Certification, and VDE Licensing pending Meets FCC and VDE Class A radiated limits * UL is a registered trademark of Underwriters Laboratories, Inc. CSA is a registered trademark of Canadian Standards Association. Description The NH050x-LP Power Modules are non-isolated dc-dc converters that operate over an input voltage range of 4.5 Vdc to 5.5 Vdc and provide a regulated output of 3.3 Vdc, 2.5 Vdc, 2.0 Vdc, or 1.5 Vdc. The open frame power modules have a maximum output current rating of 15 A at typical full-load efficiencies of 91%. Modules can be connected in parallel for increased current capability. Synchronization pins are provided to lock operating frequencies. Interleaved control reduces input and output ripple currents during parallel operation. NH050x-LP Series Power Modules: 5 Vdc Input; 1.5 Vdc to 3.3 Vdc Output; 15 A Advance Data Sheet August 1997 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 device reliability. Ratings apply to all devices. Parameter Input Voltage Continuous On/Off Terminal Voltage Operating Ambient Temperature*: NH050x-LP Storage Temperature Symbol VI Von/off Min -- -- Max 7.0 6.0 Unit V Vdc TA Tstg 0 -55 45 125 C C * Forced convection--400 lfm minimum. Higher ambient temperatures possible with increased airflow and/or decreased power output. See the Thermal Considerations section for more details. Electrical Specifications Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature conditions. Table 1. Input Specifications Parameter Operating Input Voltage: Start-up Continuous Operation Maximum Input Current (VI = 0 V to 5.5 V; IO = IO, max): NH050x-LP Input Reflected-ripple Current, Peak-to-peak (5 Hz to 20 MHz, 500 nH source impedance; see Figure 1.) Input Ripple Rejection (120 Hz) Symbol Min Typ Max Unit VI VI 4.75 4.5 -- 5.0 -- 5.5 Vdc Vdc II, max -- -- 16 A -- -- 300 -- mAp-p -- -- 60 -- dB Fusing Considerations 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 stand-alone operation to an integrated part of a sophisticated 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 normal-blow, dc fuse with a maximum rating of 20 A (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 for further information. 2 Tyco Electronics Corp. NH050x-LP Series Power Modules: 5 Vdc Input; 1.5 Vdc to 3.3 Vdc Output; 15 A Advance Data Sheet August 1997 Electrical Specifications (continued) Table 2. Output Specifications Parameter Output Voltage (Over all operating input voltage, resistive load, and temperature conditions until end of life.) (See Figure 3.) Output Voltage Set Point (VI = 5.0 V; IO = IO, max; TA = 25 C) Output Regulation: Line (VI = 4.5 V to 5.5 V) Load (IO = 0 to IO, max) Temperature (TA = 0 C to 50 C) Output Ripple and Noise (See Figure 2.): RMS Peak-to-peak (5 Hz to 20 MHz) Output Current* Output Current-limit Inception (VO = 90% of VO, set; see Feature Descriptions section.) Efficiency (VI = 5.0 V; IO = IO, max; TA = 25 C; see Figure 3.) Device NH050M-LP NH050S1R8-LP NH050G-LP NH050F-LP Symbol VO VO VO VO Min 1.43 1.71 2.40 3.16 Typ -- -- -- -- Max 1.58 1.89 2.60 3.44 Unit Vdc Vdc Vdc Vdc NH050M-LP NH050S1R8-LP NH050G-LP NH050F-LP VO, set VO, set VO, set VO, set 1.46 1.74 2.43 3.18 1.5 1.8 2.5 3.3 1.55 1.86 2.58 3.39 Vdc Vdc Vdc Vdc All All All -- -- -- -- -- -- 0.1 0.1 -- 0.3 0.3 17 % % mV All All All -- -- IO All IO -- -- 0 103 -- -- -- -- 25 100 15.0 200 mVrms mVp-p A %IO, max NH050M-LP NH050S1R8-LP NH050G-LP NH050F-LP TBD TBD TBD TBD 82 83 88 91.5 -- -- -- -- % % % % All All -- -- -- -- 20 200 -- -- mV s All All -- -- -- -- 20 200 -- -- mV s Dynamic Response (IO/t = 1 A/10 s, VI = 5.0 V, TA = 25 C): Load Change from IO = 0% to 100% of IO, max: Peak Deviation Settling Time (VO < 10% peak deviation) Load Change from IO = 100% to 0% of IO, max: Peak Deviation Settling Time (VO < 10% peak deviation) * Forced convection--400 lfm minimum. General Specifications Parameter Calculated MTBF (IO = 80% of IO, max; TA = 40 C) Weight Tyco Electronics Corp. Min -- Typ 1,000,000 -- Max 14 (0.5) Unit hr g (oz.) 3 NH050x-LP Series Power Modules: 5 Vdc Input; 1.5 Vdc to 3.3 Vdc Output; 15 A Advance Data Sheet August 1997 Cleanliness Requirements The open frame (no case or potting) power modules meet specification J-STD-001B. These requirements state that solder balls must be attached and their size should not compromise minimum electrical spacing of the power module. The cleanliness designator of the open frame power module is C00 (per J specification). Feature Specifications Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature conditions. See Feature Descriptions and Design Considerations sections for further information. Parameter Remote On/Off Signal Interface (VI = 4.5 V to 5.5 V; open collector pnp transistor or equivalent; signal referenced to GND terminal; see Figure 6 and Feature Descriptions section.): Logic Low (ON/OFF pin open)--Module On: Ion/off = 0.0 A Von/off = 0.3 V Logic High (Von/off > 2.8 V)--Module Off: Ion/off = 10 mA Von/off = 5.5 V Turn-on Time (IO = 80% of IO, max; VO within 1% of steady state) Output Voltage Adjustment (See Feature Descriptions section.): Output Voltage Remote-sense Range: For VO 2.5 V For VO < 2.5 V Output Voltage Set-point Adjustment Range (Trim): For VO 2.5 V For VO < 2.5 V Over Temperature Shutdown (See Feature Descriptions section.) Current Share Accuracy--2 Units in Parallel External Synchronization: Clock Amplitude Duty Cycle Rise and Fall Time of Clock Signal Capture Frequency Range Fan-out 4 Symbol Min Typ Max Unit Von/off Ion/off 0 -- -- -- 0.3 50 V A Von/off Ion/off -- -- -- -- 6.0 10 V mA -- -- 3.0 -- ms -- -- -- -- -- -- 10 20 % VO, nom % VO, nom -- -- TC 90 100 -- -- -- 120 110 120 -- % VO, nom % VO, nom C -- -- 10 -- %IO, rated -- -- -- -- -- 4.5 5 -- 285 -- 5.0 50 50 300 -- 5.5 95 75 325 1 Vp-p % ns kHz -- Tyco Electronics Corp. NH050x-LP Series Power Modules: 5 Vdc Input; 1.5 Vdc to 3.3 Vdc Output; 15 A Advance Data Sheet August 1997 Test Configurations CONTACT AND DISTRIBUTION LOSSES VI TO OSCILLOSCOPE II CURRENT PROBE VO SENSE(+) SUPPLY IO LOAD SENSE(-) LTEST GND VI 500 nH BATTERY CONTACT RESISTANCE CS 220 F ESR < 0.1 @ 20 C, 100 kHz 8-1173(C).a Note: All measurements are taken at the module terminals. When socketing, place Kelvin connections at module terminals to avoid measurement errors due to socket contact resistance. 470 F ESR < 0.02 @ 100 kHz GND 8-203(C).m VO x IO = ----------------------- x 100 VI x II Note: Input reflected-ripple current is measured with a simulated source inductance of 500 nH. Capacitor CS offsets possible battery impedance. Current is measured at the input of the module. Figure 3. Single-Output Voltage and Efficiency Measurement Test Setup Figure 1. Input Reflected-Ripple Test Setup Design Considerations Input Source Impedance COPPER STRIP VO 0.1 F 47 F SCOPE RESISTIVE LOAD GND 8-513(C).k Note: Use a 0.1 F ceramic capacitor and a 47 F aluminum or tantalum capacitor (ESR < 0.1 @ 100 kHz). Scope measurement should be made using a BNC socket. Position the load between 50 mm and 80 mm (2 in. and 3 in.) from the module. Figure 2. Peak-to-Peak Output Noise Measurement Test Setup The power module should be connected to a low acimpedance input source. Highly inductive source impedances can affect the stability of the power module. Adding external capacitance close to the input pins of the module can reduce the ac impedance and ensure system stability. The minimum recommended input capacitance (C1) is a 470 F electrolytic capacitor with an ESR 0.02 @ 100 kHz. Verify the quality and layout of these capacitors by ensuring that the ripple across the module input terminals is less than 1 Vp-p at full load. (See Figures 1, 4, and 5.) The 470 F electrolytic capacitor (C1) should be added across the input of the power module to ensure stability of the unit. The electrolytic capacitor should be selected for ESR and RMS current ratings to ensure safe operation in the case of a fault condition. The input capacitor for the power module should be rated to handle 10 Arms. When using a tantalum input capacitor, take care not to exceed the tantalum capacitor power rating because of the capacitor's failure mechanism (for example, a short circuit). Tyco Electronics Corp. 5 NH050x-LP Series Power Modules: 5 Vdc Input; 1.5 Vdc to 3.3 Vdc Output; 15 A Advance Data Sheet August 1997 Design Considerations (continued) TO OSCILLOSCOPE Input Source Impedance (continued) CURRENT PROBE LSOURCE LFILTER VI TO OSCILLOSCOPE SUPPLY CURRENT PROBE LSOURCE + C1 470 F C2 GND VI 1 H (MAX) 8-1216(C).a SUPPLY C1 470 F + C2 10 F (MAX) GND 8-1215(C).a Figure 4. Setup with External Capacitor to Reduce Input Ripple Voltage To reduce the amount of ripple current fed back to the input supply (input reflected ripple current), an external input filter can be added. Up to 10 F of ceramic capacitance (C2) may be externally connected to the input of the power module, provided the source inductance (LSOURCE) is less than 1 H (see Figure 4). To further reduce the input reflected ripple current, a filter inductor (LFILTER) can be connected between the supply and the external input capacitors (see Figure 5). The filter inductor should be rated to handle the maximum power module input current of 16 Adc for the NH050F-LP. If the amount of input reflected-ripple current is unacceptable with an external L-C filter, more capacitance may be added across the input supply to form a C-L-C filter. For best results, the filter components should be mounted close to the power module. Figure 5. Setup with External Input Filter to Reduce Input Reflected-Ripple Current and Ensure Stability Safety Considerations For safety-agency approval of the system in which the power module is used, the power module must be installed in compliance with the spacing and separation requirements of the end-use safety agency standard, i.e., UL-1950, CSA 22.2-950, and EN60950. For the converter output to be considered meeting the requirements of safety extra-low voltage (SELV), the input must meet SELV requirements. If the input meets extra-low voltage (ELV) requirements, then the converter's output is considered ELV. The input to these units is to be provided with a maximum 20 A normal-blow fuse in the ungrounded lead. Electrical Descriptions Overcurrent Protection To provide protection in a fault condition, the unit is equipped with internal overcurrent protection. The unit operates normally once the fault condition is removed. Under some extreme overcurrent conditions, the unit may latch off. Once the fault is removed, the unit can be reset by toggling the remote on/off signal for one second or by cycling the input power. 6 Tyco Electronics Corp. Advance Data Sheet August 1997 NH050x-LP Series Power Modules: 5 Vdc Input; 1.5 Vdc to 3.3 Vdc Output; 15 A Feature Descriptions Remote Sense Remote On/Off Remote sense minimizes the effects of distribution losses by regulating the voltage at the remote-sense connections. The voltage between the remote-sense pins and the output terminals must not exceed the output voltage sense range given in the Feature Specifications table. To turn the power module on and off, the user must supply a switch to control the voltage at the on/off terminal (Von/off). The switch should be an open collector pnp transistor connected between the on/off terminal and the VI terminal or its equivalent (see Figure 6). During a logic low when the ON/OFF pin is open, the power module is on and the maximum Von/off generated by the power module is 0.3 V. The maximum allowable leakage current of the switch when Von/off = 0.3 V and VI = 5.5 V (Vswitch = 5.2 V) is 50 A. During a logic high, when Von/off = 2.8 V to 5.5 V, the power module is off and the maximum Ion/off is 10 mA. The switch should maintain a logic high while sourcing 10 mA. The voltage between the VOUT and GND terminals must not exceed 110% of VO, nom for VO 2.5 V or 120% of VO, nom for VO < 2.5 V. This limit includes any increase in voltage due to remote-sense compensation and output voltage set-point adjustment (trim). See Figure 7. If not using the remote-sense feature to regulate the output at the point of load, then connect SENSE(+) to VOUT and SENSE(-) to GND at the module. SENSE(+) CAUTION: Never ground the on/off terminal. Grounding the on/off terminal disables an important safety feature and may damage the module or the customer system. SENSE(-) CONTACT RESISTANCE If not using the remote on/off feature, leave the ON/OFF pin open. VOUT VIN IO II SUPPLY GND CONTACT AND DISTRIBUTION LOSSES LOAD 8-651(C).i Figure 7. Effective Circuit Configuration for SingleModule Remote-Sense Operation VI Vo + Vswitch ON/OFF Ion/off + Von/off GND 8-1175(C).a Figure 6. Remote On/Off Implementation Tyco Electronics Corp. 7 NH050x-LP Series Power Modules: 5 Vdc Input; 1.5 Vdc to 3.3 Vdc Output; 15 A Feature Descriptions (continued) Output Voltage Set-Point Adjustment (Trim) Output voltage set-point adjustment allows the output voltage set point to be increased or decreased by connecting an external resistor between the TRIM pin and either the VO pin (decrease output voltage) or GND pin (increase output voltage). The trim range for modules that produce 2.5 VOUT or greater is 10% of VO, nom. The trim range for modules that produce less than 2.5 VOUT is +20%, -0%. Connecting an external resistor (Rtrim-down) between the TRIM and VO pin decreases the output voltage set point as defined in the following equation. Advance Data Sheet August 1997 restart when Q32 cools down. The unit cycles on and off if the fault condition continues to exist. Recovery from shutdown is accomplished when the cause of the overheating condition is removed. Parallel Operation For additional power requirements, the power modules can be configured for parallel operation with forced load sharing (see Figure 8). Good layout techniques should be observed for noise immunity. To implement forced load sharing, the following connections must be made: For the F (3.3 VOUT) module: 18.23 R trim-down = ------------------------------ - 47.2 k V O - V O , adj For the G (2.5 VOUT) module: 6.98 R trim-down = ------------------------------ - 24 k V O - V O , adj Note: Output voltages below 2.5 V cannot be trimmed down. Connecting an external resistor (Rtrim-up) between the TRIM and GND pins increases the output voltage set point to VO, adj as defined in the following equation. For the G (2.5 VOUT) module: The PARALLEL pins of all units must be connected together. The paths of these connections should be as direct as possible. Connect the SYNC OUT pin of one module to the SYNC IN pin of another module according to the Module Synchronization section on the next page. All remote-sense pins must be connected to the power bus at the same point, i.e., connect all SENSE(+) pins to the (+) side of the power bus at the same point and all SENSE(-) pins to the (-) side of the power bus at the same point. Close proximity and directness are necessary for good noise immunity. MASTER SYNC IN SYNC OUT PARALLEL SENSE(+) SENSE(-) 28 R trim-up = ------------------------------ - 10 k V O , adj - V O VOUT VIN For all other modules: 28 R trim-up = ------------------------------ - 33.2 k V O , adj - V O If not using the trim feature, leave the TRIM pin open. GND SLAVE SYNC PARALLEL IN SENSE(+) SYNC SENSE(-) OUT VOUT Overtemperature Shutdown VIN To provide additional protection in a fault condition, the unit is equipped with a nonlatched thermal shutdown circuit. The shutdown circuit engages when Q32 exceeds approximately 120 C. The unit attempts to GND 8-581(C).b Figure 8. Wiring Configuration for Parallel Operation 8 Tyco Electronics Corp. Advance Data Sheet August 1997 NH050x-LP Series Power Modules: 5 Vdc Input; 1.5 Vdc to 3.3 Vdc Output; 15 A Feature Descriptions (continued) Thermal Considerations Module Synchronization The power modules operate in a variety of thermal environments; however, sufficient cooling should be provided to help ensure reliable operation of the unit. Heat is removed by conduction, convection, and radiation to the surrounding environment. Any module can be synchronized to any other module or to an external clock using the SYNC IN or SYNC OUT pins. SYNC IN Pin The SYNC IN signal is referenced to VI(-). This pin can be connected either to an external clock or directly to the SYNC OUT pin of another NH050x-LP module. The thermal data presented is based on measurements taken in a wind tunnel. The test setup shown in Figure 9 was used to collect data for Figure 12. Note that the airflow is parallel to the long axis of the module. The derating data applies to airflow along either direction of the module's long axis. If an external clock signal is applied to the SYNC IN pin, the signal must have the characteristics as shown in the Feature Specifications table. Operation outside the specified frequency band will detrimentally affect the performance of the module and must be avoided. If the SYNC IN pin is connected to the SYNC OUT pin of another module, the connection should be as direct as possible, and the VI(-) pins of the modules must be shorted together. 203.2 (8.0) AIRFLOW If no connection is made to the SYNC IN pin, the module will operate from its own internal clock. SYNC OUT Pin This pin contains a clock signal referenced to the VI(-) pin. The frequency of this signal will equal either the module's internal clock frequency or the frequency established by an external clock applied to the SYNC IN pin. When synchronizing several modules together, the modules should be connected in a daisy-chain fashion where the SYNC OUT pin of one module is connected to the SYNC IN pin of another module. Each module in the chain will synchronize to the frequency of the first module in the chain. 25.4 (1.0) AIR VELOCITY AND AMBIENT TEMPERATURE MEASURED HERE POWER MODULE 76.2 (3.0) 8-1199(C).a Note: Dimensions are in millimeters and (inches). Figure 9. Thermal Test Setup To avoid loading effects, ensure that the SYNC OUT pin of any one module is connected to the SYNC IN pin of only one module. Any number of modules can be synchronized in this daisy-chain fashion. Tyco Electronics Corp. 9 NH050x-LP Series Power Modules: 5 Vdc Input; 1.5 Vdc to 3.3 Vdc Output; 15 A Thermal Considerations (continued) Proper cooling can be verified by measuring the power module's temperature at lead 7 of Q32 as shown in Figure 10. The temperature at this location should not exceed 115 C. Advance Data Sheet August 1997 With the known heat dissipation and a given local ambient temperature, the minimum airflow can be chosen from the derating curves in Figure 12. 6 POWER DISSIPATION, PD (W) 5 Q32 LEAD #7 8-1149(C).b 4 3 3.0 m/s (600 ft./min.) 2.0 m/s (400 ft./min.) 1.5 m/s (300 ft./min.) 1.0 m/s (200 ft./min.) 0.5 m/s (100 ft./min.) NAT. CONVECT. 2 1 Figure 10. Temperature Measurement Location 0 0 Convection Requirements for Cooling 30 40 50 60 70 80 90 100 110 120 130 AMBIENT TEMPERATURE, TA (C) 8-1426(C) To predict the approximate cooling needed for the module, determine the power dissipated by the unit for the particular application. Figure 11 shows typical heat dissipation for the module over a range of output currents. For example, if the NH050F-LP dissipates 3.5 W of heat, the minimum airflow in a 60 C environment is 0.5 m/s (100 ft./min.). 5.0 Keep in mind that these derating curves are approximations of the ambient temperatures and airflows required to keep the power module temperature below its maximum rating. Once the module is assembled in the actual system, the module's temperature should be checked as shown in Figure 10 to ensure it does not exceed 115 C. 4.5 POWER DISSIPATION, PD (W) Figure 12. NH050x Power Derating vs. Local Ambient Temperature and Air Velocity HIGH LINE = 5.5 V NOM LINE = 5.0 V LOW LINE = 4.5 V 4.0 3.5 3.0 2.5 2.0 1.5 1.0 0.5 0.0 0 2 4 6 8 10 12 14 OUTPUT CURRENT, IO (A) 8-1428(C) Figure 11. NH050F Power Dissipation vs. Output Current, TA = 25 C 10 Tyco Electronics Corp. Advance Data Sheet August 1997 NH050x-LP Series Power Modules: 5 Vdc Input; 1.5 Vdc to 3.3 Vdc Output; 15 A Outline Diagram Dimensions are in millimeters and (inches). Tolerances: x.x mm 0.5 mm (x.xx in. 0.02 in.) x.xx mm 0.25 mm (x.xxx in. 0.010 in.) Top View 76.2 (3.00) 25.4 (1.00) LUCENT TECHNOLOGIES LABEL* Side View 5.84 (0.230) 25.4 (1.00) 8.6 (0.34) MAX Bottom View 48.3 (1.90) 23.6 (0.93) 45.7 (1.80) 43.2 (1.70) 40.6 (1.60) 2.54 (0.100) 1.8 (0.07) 5.08 (0.200) 2.54 (0.100) 10.16 17.8 (0.400) (0.70) 20.3 7.62 (0.80) (0.300) 8-1176(C).c * Label includes product designation and date code. Tyco Electronics Corp. 11 NH050x-LP Series Power Modules: 5 Vdc Input; 1.5 Vdc to 3.3 Vdc Output; 15 A Advance Data Sheet August 1997 Recommended Hole Pattern Dimensions are in millimeters and (inches). Tolerances: x.xx mm 0.13 mm (x.xxx in. 0.005 in.). PLATED HOLE SIZE 1.32 (0.052) 76.7 (3.02) MAX J2 25.9 (1.02) MAX 4 1 5 8 6 5 10 1 2.54 (0.100) 20.32 17.78 (0.800) 10.16 (0.700) (0.400) 5.08 (0.200) J1 2.54 (0.100) 7.62 (0.300) 2.03 (0.080) 40.64 (1.600) 43.18 (1.700) 45.72 (1.800) 23.88 (0.940) 48.26 (1.900) 8-1176(C).c Pin Function Pin Function J1 - 1 J1 - 2 J1 - 3 J1 - 4 J1 - 5 J1 - 6 J1 - 7 J1 - 8 J1 - 9 J1 - 10 Remote ON/OFF PARALLEL TRIM GND SYNC IN SYNC OUT GND VIN VIN VIN J2 - 1 J2 - 2 J2 - 3 J2 - 4 J2 - 5 J2 - 6 J2 - 7 J2 - 8 SENSE(-) SENSE(+) VOUT VOUT VOUT VOUT GND GND Ordering Information Please contact your Tyco Electronics Account Manager or Field Application Engineer For pricing and availability. Input Voltage 5V 5V 5V 5V 12 Output Voltage 1.5 V 1.8 V 2.5 V 3.3 V Output Power 22.5 W 27 W 37.5 W 50 W Device Code NH050M-LP NH050S1R8-LP NH050G-LP NH050F-LP Comcode TBD TBD TBD 108013715 Tyco Electronics Corp. Advance Data Sheet August 1997 NH050x-LP Series Power Modules: 5 Vdc Input; 1.5 Vdc to 3.3 Vdc Output; 15 A Notes Tyco Electronics Corp. 13 NH050x-LP Series Power Modules: 5 Vdc Input; 1.5 Vdc to 3.3 Vdc Output; 15 A Advance Data Sheet August 1997 Notes 14 Tyco Electronics Corp. Advance Data Sheet August 1997 NH050x-LP Series Power Modules: 5 Vdc Input; 1.5 Vdc to 3.3 Vdc Output; 15 A Notes Tyco Electronics Corp. 15 NH050x-LP Series Power Modules: 5 Vdc Input; 1.5 Vdc to 3.3 Vdc Output; 15 A Advance Data Sheet August 1997 Tyco Electronics Power Systems, Inc. 3000 Skyline Drive, Mesquite, TX 75149, USA +1-800-526-7819 FAX: +1-888-315-5182 (Outside U.S.A.: +1-972-284-2626, FAX: +1-972-284-2900 http://power.tycoeleectronics.com Tyco Electronics Corportation reserves the right to make changes to the product(s) or information contained herein without notice. No liability is assumed as a result of their use or application. No rights under any patent accompany the sale of any such product(s) or information. (c) 2001 Tyco Electronics Corporation, Harrisburg, PA. All International Rights Reserved. Printed in U.S.A. August 1997 DS97-208EPS Printed on Recycled Paper