Data Sheet March 2010 NH033x-L and NH050x-L Series Power Modules: 5 Vdc Input; 1.2 Vdc to 3.3 Vdc Output; 10 A and 15 A Features n n Non-isolated output n Constant frequency n High efficiency: 91% typical n Overcurrent protection n Remote on/off n The NH033x-L and NH050x-L Series Power Modules use advanced, surface-mount technology and deliver high-quality, compact, dc-dc conversion at an economical price. Overtemperature protection n Remote sense Applications Distributed power architectures n Servers n Workstations n Desktop computers Output voltage adjustment: 90% to 110% of VO, nom: VO Š 2.5 V 100% to 120% of VO, nom: VO < 2.5 V n n n Small size: 69.9 mm x 25.4 mm x 8.6 mm (2.75 in. x 1.00 in. x 0.34 in.) n UL* 60950 Recognized, CSA† C22.2 No. 6095000 Certified, VDE 0805 (IEC60950) Licensed Meets FCC Class A radiated limits Options n n Tight tolerance output Short pins: 2.79 mm ± 0.25 mm (0.110 in. ± 0.010 in.) Description The NH033x-L and NH050x-L Series 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 between 1.2 V and 3.3 V. The open frame power modules have a maximum output current rating of 10 A and 15 A, respectively, at typical full-load efficiencies of 91%. * UL is a registered trademark of Underwriters Laboratories, Inc. † CSA is a registered trademark of Canadian Standards Association. NH033x-L and NH050x-L Series Power Modules: 5 Vdc Input; 1.2 Vdc to 3.3 Vdc Output; 10 A and 15 A Data Sheet March 2010 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. Parameter Device Symbol Min Max Unit Input Voltage (continuous) All VI — 7.0 Vdc On/Off Terminal Voltage All Von/off — 6.0 Vdc Operating Ambient Temperature*: NH033x-L NH050x-L All All TA TA 0 0 62 49 °C °C Storage Temperature All Tstg –55 125 °C * Forced convection—200 lfpm 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 Symbol Min Typ Max Unit VI VI 4.75 4.5 — 5.0 — 5.5 Vdc Vdc II, max II, max — — — — 10 16 A A Input Reflected-ripple Current, Peak-to-peak (5 Hz to 20 MHz, 500 nH source impedance; see Figure 33.) II — 300 — mAp-p Input Ripple Rejection (120 Hz) — — 60 — dB Operating Input Voltage: Start-up Continuous Operation Maximum Input Current (VI = 0 V to 5.5 V; IO = IO, max; see Figures 1—8.): NH033x-L NH050x-L 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 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 Lineage Power Data Sheet March 2010 NH033x-L and NH050x-L Series Power Modules: 5 Vdc Input; 1.2 Vdc to 3.3 Vdc Output; 10 A and 15 A Electrical Specifications (continued) Table 2. Output Specifications Parameter Device Symbol Min Typ Max Unit Output Voltage Set Point (VI = 5.0 V; IO = IO, max; TA = 25 °C) NH0xxM-L NH0xxS1R8-L NH0xxG-L NH0xxF-L VO, set VO, set VO, set VO, set 1.45 1.74 2.42 3.18 1.5 1.8 2.5 3.3 1.55 1.86 2.58 3.39 Vdc Vdc Vdc Vdc Output Voltage (Over all operating input voltage, resistive load, and temperature conditions until end of life; see Figure 35.) NH0xxM-L NH0xxS1R8-L NH0xxG-L NH0xxF-L VO VO VO VO 1.43 1.71 2.40 3.16 — — — — 1.58 1.89 2.60 3.44 Vdc Vdc Vdc Vdc Output Regulation: Line (VI = 4.5 V to 5.5 V) Load (IO = 0 to IO, max) Temperature (TA = 0 °C to 50 °C) All All All — — — — — — 0.1 0.1 — 0.3 0.3 17 %VO %VO mV Output Ripple and Noise Voltage (See Figure 34.): RMS Peak-to-peak (5 Hz to 20 MHz) All All — — — — — — 25 100 mVrms mVp-p External Load Capacitance (See Design Considerations section.) All — 0 — 15,000 µF Output Current (See Derating Curves Figures 50 and 51.) NH033x-L NH050x-L IO IO 0 0 — — 10.0 15.0 A A Output Current-limit Inception (VO = 90% of VO, set; TQ32 = 80 °C; see Feature Descriptions section.) All IO 103 — 200 %IO, max Output Short-circuit Current All IO — 170 — %IO, max NH033M-L NH033S1R8-L NH033G-L NH033F-L NH050M-L NH050S1R8-L NH050G-L NH050F-L η η η η η η η η 80 82 87 90 77 81 85 89 83 85 89 92 81 83 87 90.5 — — — — — — — — % % % % % % % % All — — 265 — kHz All All — — — — 20 200 — — mV µs All All — — — — 20 200 — — mV µs Efficiency (VI = 5.0 V; IO = IO, max; TA = 25 °C; see Figure 35.) Switching Frequency Dynamic Response (ΔIO/Δt = 1 A/10 µs, 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) Lineage Power 3 NH033x-L and NH050x-L Series Power Modules: 5 Vdc Input; 1.2 Vdc to 3.3 Vdc Output; 10 A and 15 A Data Sheet March 2010 General Specifications Parameter Min Calculated MTBF (IO = 80% of IO, max; TA = 40 °C) Weight Typ Max Unit 14 (0.5) g (oz.) 1,300,000 — — hours Cleanliness Requirements The open frame (no case or potting) power modules meet specification J-STD-001B. These requirements state that any solder balls must be attached and their size should not compromise the 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 Symbol Min Typ Max Unit Remote On/Off Signal Interface (VI = 4.5 V to 5.5 V; open collector pnp transistor or equivalent; signal referenced to GND pin; see Figure 38 and Feature Descriptions section.): Logic Low (ON/OFF pin open)—Module On: Ion/off = 0.0 µA 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 = IO, max; VO within ±1% of steady state; see Figures 25—32.) Von/off Ion/off –0.7 — — — 0.3 50 V µA Von/off Ion/off — — — — — — 3.0 6.0 10 — V mA ms — — — — — — 10 20 % VO, nom % VO, nom VTRIM VTRIM 90 100 — — 110 120 % VO, nom % VO, nom TQ32 115 120 — °C 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 Overtemperature Protection (shutdown) (See Feature Descriptions section.) * Total adjustment of trim and remote sense combined should not exceed 10% for VO ≥ 2.5 V or 20% for VO < 2.5 V. 4 Lineage Power Data Sheet March 2010 NH033x-L and NH050x-L Series Power Modules: 5 Vdc Input; 1.2 Vdc to 3.3 Vdc Output; 10 A and 15 A Characteristics Curves 12 INPUT CURRENT, II (A) 10 6 INPUT CURRENT, II (A) 5 IO = 10 A 4 3 IO = 15 A 8 6 4 2 2 0 1 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 INPUT VOLTAGE, V I (V) 0 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 8-2420 INPUT VOLTAGE, V I (V) 8-2415 Figure 1. NH033M-L Input Characteristics, TA = 25 °C Figure 4. NH050S1R8-L Input Characteristics, TA = 25 °C 9 8 INPUT CURRENT, II (A) 10 INPUT CURRENT, II (A) 9 IO = 15 A 8 7 6 5 4 IO = 10 A 7 6 5 4 3 2 3 2 1 1 0 0.0 0.5 0 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 INPUT VOLTAGE, V I (V) 8-2414 INPUT VOLTAGE, VI (V) 8-2419 Figure 2. NH050M-L Input Characteristics, TA = 25 °C Figure 5. NH033G-L Input Characteristics, TA = 25 °C 14 7 INPUT CURRENT, II (A) INPUT CURRENT, II (A) 12 6 IO = 10 A 5 4 3 2 8 6 4 2 1 0 0.0 0.5 IO = 15 A 10 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 0 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 INPUT VOLTAGE, VI (V) INPUT VOLTAGE, V I (V) 8-2418 8-2416 Figure 3. NH033S1R8-L Input Characteristics, TA = 25 °C Lineage Power Figure 6. NH050G-L Input Characteristics, TA = 25 °C 5 NH033x-L and NH050x-L Series Power Modules: 5 Vdc Input; 1.2 Vdc to 3.3 Vdc Output; 10 A and 15 A Characteristics Curves (continued) OUTPUT VOLTAGE, V O (V) 1.6 9 INPUT CURRENT, II (A) 8 Data Sheet March 2010 IO = 10 A 7 6 5 4 1.4 VI = 5.0 (V) 1.2 1.0 0.8 0.6 0.4 3 0.2 2 0.0 0 2 4 8 6 10 12 14 16 18 20 22 24 26 1 OUTPUT CURRENT, IO (A) 0 0 1 2 3 4 5 8-2427(C) 6 INPUT VOLTAGE, V I(V) 8-2413(C) Figure 10. NH050M-L Current Limit, TA = 25 °C Figure 7. NH033F-L Input Characteristics, TA = 25 °C 1.8 V I = 5.0 V OUTPUT VOLTAGE, V O (V) 1.6 14 INPUT CURRENT, II (A) 12 IO = 15 A 10 8 6 1.4 1.2 1.0 0.8 0.6 0.4 4 0.2 2 0.0 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 1819 20 OUTPUT CURRENT, IO (A) 0 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 INPUT VOLTAGE, VI (V) 8-2417(C) 8-2424(C) Figure 11. NH033S1R8-L Current Limit, TA = 25 °C Figure 8. NH050F-L Input Characteristics, TA = 25 °C 1.8 1.6 1.4 OUTPUT VOLTAGE, V O (V) OUTPUT VOLTAGE, V O (V) 1.6 V I = 5.0 V 1.2 1.0 0.8 0.6 V I= 5.0(V) 1.4 1.2 1.0 0.8 0.6 0.4 0.4 0.2 0.2 0.0 0 0.0 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 OUTPUT CURRENT, IO (A) 8-2423(C) 2 4 6 8 10 12 14 16 18 20 22 24 26 OUTPUT CURRENT, IO (A) 8-2428(C) Figure 12. NH050S1R8-L Current Limit, TA = 25 °C Figure 9. NH033M-L Current Limit, TA = 25 °C 6 Lineage Power Data Sheet March 2010 NH033x-L and NH050x-L Series Power Modules: 5 Vdc Input; 1.2 Vdc to 3.3 Vdc Output; 10 A and 15 A Characteristics Curves (continued) OUTPUT VOLTAGE, V O (V) 3.5 OUTPUT VOLTAGE, V O (V) 2.5 2.0 V I = 5.0 V 1.5 1.0 3.0 V I = 5.0 V 2.5 2.0 1.5 1.0 0.5 0.0 0 0.5 2 4 6 8-2422(C) 10 12 14 16 18 20 22 24 OUTPUT CURRENT, IO (A) 0.0 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 OUTPUT CURRENT, IO (A) 8 8-2425(C) Figure 16. NH050F-L Current Limit, TA = 25 °C Figure 13. NH033G-L Current Limit, TA = 25 °C 86.0 85.5 VI = 4.5 V EFFICIENCY, η (%) OUTPUT VOLTAGE, V O (V) 2.5 V I = 5.0 V 2.0 1.5 1.0 85.0 84.5 VI = 5.0 V 84.0 83.5 83.0 VI = 5.5 V 82.5 0.5 82.0 0 0.0 0 2 4 6 8 1 2 3 4 5 6 7 8 9 10 OUTPUT CURRENT, IO (A) 10 12 14 16 18 20 22 24 26 28 8-2431(C) OUTPUT CURRENT, IO (A) 8-2426(C) Figure 17. NH033M-L Efficiency, TA = 25 °C Figure 14. NH050G-L Current Limit, TA = 25 °C 86 VI = 4.5 V 3.0 85 VI = 5.0V VI = 5.5 V VI = 5 V EFFICIENCY, η (%) OUTPUT VOLTAGE, V O (V) 3.5 2.5 2.0 1.5 84 83 82 1.0 81 0.5 80 0 0.0 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 1819 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 OUTPUT CURRENT, IO (A) 8-2435(C) OUTPUT CURRENT, IO (A) 8-2421(C) Figure 18. NH050M-L Efficiency, TA = 25 °C Figure 15. NH033F-L Current Limit, TA = 25 °C Lineage Power 7 NH033x-L and NH050x-L Series Power Modules: 5 Vdc Input; 1.2 Vdc to 3.3 Vdc Output; 10 A and 15 A Characteristics Curves (continued) Data Sheet March 2010 91 VI = 4.5 V 90 VI = 5.0 V 87.5 EFFICIENCY, η (%) EFFICIENCY, η (%) VI = 5.5 V 87.0 VI = 4.5 V 86.5 VI = 5.0 V 86.0 85.5 89 88 87 VI = 5.5 V 86 85.0 85 0 84.5 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 OUTPUT CURRENT, IO (A) 84.0 0 1 2 3 4 5 6 7 8 9 8-2434(C) 10 OUTPUT CURRENT, IO (A) 8-2432(C) Figure 22. NH050G-L Efficiency, TA = 25 °C Figure 19. NH033S1R8-L Efficiency, TA = 25 °C 93.0 VI = 4.5 V 92.5 VI = 4.5 V 86.0 VI = 5.0 V EFFICIENCY, η (%) 87.0 86.5 EFFICIENCY, η (%) VI = 5.5 V 85.5 85.0 84.5 84.0 92.0 VI = 5.0 V 91.5 VI = 5.5 V 91.0 90.5 83.5 90.5 83.0 0 82.5 1 2 82.0 0 1 2 3 4 5 6 7 8 9 10 11 12 13 3 4 5 6 8 7 9 10 OUTPUT CURRENT, IO (A) 14 15 8-2429(C) OUTPUT CURRENT, IO (A) Figure 23. NH033F-L Efficiency, TA = 25 °C 8-2436(C) Figure 20. NH050S1R8-L Efficiency, TA = 25 °C 93.0 92.5 90.5 VI = 4.5 V EFFICIENCY, η (%) EFFICIENCY, η (%) 90.0 89.5 VI = 5.0 V 89.0 88.5 VI = 5.5 V VI = 4.5 V 92.0 VI = 5.0 V VI = 5.5 V 91.5 91.0 90.5 90.0 89.5 89.0 88.0 88.5 87.5 88.0 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 87.0 0 1 2 3 4 5 6 7 8 9 10 OUTPUT CURRENT, IO (A) 8-2433(C) OUTPUT CURRENT, IO (A) 8-2430(C) Figure 24. NH050F-L Efficiency, TA = 25 °C Figure 21. NH033G-L Efficiency, TA = 25 °C 8 Lineage Power Data Sheet March 2010 NH033x-L and NH050x-L Series Power Modules: 5 Vdc Input; 1.2 Vdc to 3.3 Vdc Output; 10 A and 15 A OUTPUT VOLTAGE, VO (V) (1 V/div.) OUTPUT VOLTAGE, V O (V) (1 V/div.) REMOTE ON/OFF, VON/OFF ( V) REMOTE ON/OFF, V ON/OFF (V) Characteristics Curves (continued) TIME, t (500 µs/div) 8-2440(C) TIME, t (500 µs/div) 8-2439(C) Figure 27. NH033S1R8-L Typical Start-Up from Remote On/Off, VI = 5 V, IO = 10 A OUTPUT VOLTAGE, V O (V) (500mV/div.) OUTPUT VOLTAGE, V O (V) (1 V/div.) REMOTE ON/OFF, V ON/OFF (V) REMOTE ON/OFF, V ON/OFF (V) Figure 25. NH033M-L Typical Start-Up from Remote On/Off, VI = 5 V, IO = 10 A TIME, t (500 µs/div) 8-2452(C) TIME, t (500 µs/div) 8-2442(C) Figure 28. NH050S1R8-L Typical Start-Up from Remote On/Off, VI = 5 V, IO = 15 A Figure 26. NH050M-L Typical Start-Up from Remote On/Off, VI = 5 V, IO = 15 A Lineage Power 9 NH033x-L and NH050x-L Series Power Modules: 5 Vdc Input; 1.2 Vdc to 3.3 Vdc Output; 10 A and 15 A Data Sheet March 2010 (1 V/div.) OUTPUT VOLTAGE, V O (V) (1 V/div.) OUTPUT VOLTAGE, V O (V) REMOTE ON/OFF, V ON/OFF (V) REMOTE ON/OFF, V ON/OFF (V) Characteristics Curves (continued) TIME, t (500 µs/div) 8-2437(C) TIME, t (500 µs/div) 8-2438(C) Figure 31. NH033F-L Typical Start-Up from Remote On/Off, VI = 5 V, IO = 10 A OUTPUT VOLTAGE, V O (V) (1 V/div.) OUTPUT VOLTAGE, V O (V) (1 V/div.) REMOTE ON/OFF, V ON/OFF (V) REMOTE ON/OFF, V ON/OFF (V) Figure 29. NH033G-L Typical Start-Up from Remote On/Off, VI = 5 V, IO = 10 A TIME, t (500 µs/div) 8-2441(C) TIME, t (500 µs/div) 8-2443(C) Figure 32. NH050F-L Typical Start-Up from Remote On/Off, VI = 5 V, IO = 15 A Figure 30. NH050G-L Typical Start-Up from Remote On/Off, VI = 5 V, IO = 15 A 10 Lineage Power Data Sheet March 2010 NH033x-L and NH050x-L Series Power Modules: 5 Vdc Input; 1.2 Vdc to 3.3 Vdc Output; 10 A and 15 A Test Configurations Design Considerations Input Source Impedance TO OSCILLOSCOPE CURRENT PROBE LTEST VI(+) 500 µH CS 220 µF ESR < 0.1 Ω @ 20 ˚C, 100 kHz BATTERY CI 470 µF ESR < 0.2 Ω @ 100 kHz GND 8-203(C).h Note: Input reflected-ripple current is measured with a simulated source impedance of 500 nH. Capacitor CS offsets possible battery impedance. Current is measured at the input of the module. Figure 33. Input Reflected-Ripple Test Setup COPPER STRIP VO 1.0 µF 1000 µF SCOPE RESISTIVE LOAD GND The power module should be connected to a low acimpedance input source. Highly inductive source impedances can affect the stability of the NH033x-L and NH050x-L Series Power Modules. 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 µF electrolytic capacitor with an ESR ð 0.02 Ω @ 100 kHz. Verify the quality and layout of these capacitors by ensuring that the ripple across the module input pins is less than 1 Vp-p at IO = IO, max. (See Figures 33, 36, and 37.) The 470 µF electrolytic capacitor (C1) should be added across the input of the NH033x-L or NH050x-L 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 NH033x-L and NH050x-L series 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). 8-513(C).r TO OSCILLOSCOPE Note: Use a 0.1 µF ceramic capacitor and a 1,000 µF aluminum or tantalum capacitor (ESR = 0.05 ¾ @ 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 34. Peak-to-Peak Output Noise Measurement Test Setup CURRENT PROBE LSOURCE VI 1 µH (MAX) SUPPLY C1 470 µF + C2 10 µF (MAX) GND CONTACT AND DISTRIBUTION LOSSES VI II VO IO SENSE(+) SUPPLY LOAD 8-1215(C).a Figure 36. Setup with External Capacitor to Reduce Input Ripple Voltage SENSE(-) GND CONTACT RESISTANCE 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. VO × IO η = ------------------------ x 100 VI × II % 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 µF of ceramic capacitance (C2) may be externally connected to the input of the NH033x-L or NH050x-L, provided the source inductance (LSOURCE) is less than 1 µH (see Figure 36). Figure 35. Output Voltage and Efficiency Measurement Test Setup Lineage Power 11 NH033x-L and NH050x-L Series Power Modules: 5 Vdc Input; 1.2 Vdc to 3.3 Vdc Output; 10 A and 15 A Data Sheet March 2010 Design Considerations (continued) Safety Considerations Input Source Impedance (continued) 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 60950, CSA C22.2 No. 60950-00, and VDE 0805 (IEC60950). 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 37). The filter inductor should be rated to handle the maximum power module input current of 10 Adc for the NH033x-L and 16 Adc for the NH050x-L. 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. TO OSCILLOSCOPE CURRENT PROBE LSOURCE LFILTER VI SUPPLY + C1 470 µF For the converter output to be considered meeting the requirements of safety extra-low voltage (SELV), the input must meet SELV requirements. The power module has extra-low voltage (ELV) outputs when all inputs are ELV. The input to these units is to be provided with a maximum 20 A normal-blow fuse in the ungrounded lead. Feature Descriptions Overcurrent Protection C2 GND 8-1216(C).a Figure 37. Setup with External Input Filter to Reduce Input Reflected-Ripple Current and Ensure Stability Output Capacitance The NH033x-L and NH050x-L Series Power Modules can be operated with large values of output capacitance. In order to maintain stability, choose a capacitor bank so that the product of their capacitance and ESR is greater than 50 x 10–6 (e.g., 1,000 µF x 0.05 Ω = 50 x 10–6). For complex or very low ESR filters, consult the Technical Support for stability analysis. 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. Remote On/Off To turn the power module on and off, the user must supply a switch to control the voltage at the ON/OFF pin (Von/off). The switch should be an open collector pnp transistor connected between the ON/OFF pin and the VI pin or its equivalent (see Figure 38). 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 µA. 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. Leave the remote ON/OFF pin open if not using that feature. 12 The module has internal capacitance to reduce noise at the ON/OFF pin. Additional capacitance is not generally needed and may degrade the start-up characteristics of the module. Lineage Power Data Sheet March 2010 NH033x-L and NH050x-L Series Power Modules: 5 Vdc Input; 1.2 Vdc to 3.3 Vdc Output; 10 A and 15 A Feature Descriptions (continued) Output Voltage Set-Point Adjustment (Trim) Remote On/Off (continued) CAUTION: Never ground the ON/OFF pin. Grounding the ON/OFF pin disables an important safety feature and may damage the module or the customer system. 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 SENSE(+) pin (decrease output voltage) or SENSE(–) pin (increase output voltage). The trim range for modules that produce 2.5 VO or greater is ±10% of VO, nom. The trim range for modules that produce less than 2.5 VO is +20%, –0%. Connecting an external resistor (Rtrim-down) between the TRIM and SENSE(+) pin decreases the output voltage set point as defined in the following equation. VI Vo + V switch For the F (3.3 VO) module: ON/OFF Ion/off 18.23 R t ri m -down = ⎛ ------------------------------ – 47.2⎞ kΩ ⎝ V O – V O , adj ⎠ + V on/off GND For the G (2.5 VO) module: 8-1175(C).a Figure 38. Remote On/Off Implementation 6.98 R tr im -down = ⎛ ------------------------------ – 24⎞ kΩ ⎝ V O – V O , adj ⎠ Note: Output voltages below 2.5 V cannot be trimmed down. Remote Sense 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 pins must not exceed the output voltage sense range given in the Feature Specifications table. The voltage between the VO and GND pins 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 39. If not using the remote-sense feature to regulate the output at the point of load, connect SENSE(+) to VO and SENSE(–) to GND at the module. Connecting an external resistor (Rtrim-up) between the TRIM and SENSE(–) pins increases the output voltage set point to VO, adj as defined in the following equation. For the G (2.5 VO) module: 28 R t r i m -up = ⎛ ------------------------------ – 10⎞ kΩ ⎝ V O , adj – V O ⎠ For all other modules: 28 R tr im -up = ⎛ ------------------------------ – 33.2⎞ kΩ ⎝ V O , adj – V O ⎠ Leave the TRIM pin open if not using that feature. Overvoltage Protection Overvoltage protection is not provided in the power module. External circuitry is required to provide overvoltage protection. SENSE(+) SENSE(-) VI VO IO II GND CONTACT RESISTANCE SUPPLY CONTACT AND DISTRIBUTION LOSSES LOAD 8-651(C).i Figure 39. Effective Circuit Configuration for Single-Module Remote-Sense Operation Lineage Power 13 NH033x-L and NH050x-L Series Power Modules: 5 Vdc Input; 1.2 Vdc to 3.3 Vdc Output; 10 A and 15 A Feature Descriptions (continued) Data Sheet March 2010 Proper cooling can be verified by measuring the power module’s temperature at lead 7 of Q32 as shown in Figure 41. Overtemperature Protection 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 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. Q32 LEAD #7 8-1149(C).b Thermal Considerations Figure 41. Temperature Measurement Location The thermal data presented is based on measurements taken in a wind tunnel. The test setup shown in Figure 40 was used to collect data for Figures 50 and 51. 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. The module runs cooler when it is rotated 90° from the direction shown in Figure 40. This thermally preferred orientation increases the maximum ambient temperatures 4 °C to 5 °C from the maximum values shown in Figures 50 and 51. 203.2 (8.0) Convection Requirements for Cooling To predict the approximate cooling needed for the module, determine the power dissipated as heat by the unit for the particular application. Figures 42 through 49 show typical power dissipation for the module over a range of output currents. 3.5 POWER AIRFLOW The temperature at this location should not exceed 115 °C at full power. The output power of the module should not exceed the rated power. DISSIPATION,P D (W) 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. 3.0 2.5 2.0 1.5 1.0 0.5 0 25.4 (1.0) POWER MODULE AIR VELOCITY AND AMBIENT TEMPERATURE MEASURED HERE V I= 5.5 V V I= 5.0 V V I = 4.5 V 1 2 3 4 5 6 7 8 9 10 OUTPUT CURRENT, IO (A) 8-2446(C) Figure 42. NH033M-L Typical Power Dissipation vs. Output Current, TA = 25 °C 76.2 (3.0) 8-1199(C).a Note: Dimensions are in millimeters and (inches). Figure 40. Thermal Test Setup 14 Lineage Power Data Sheet March 2010 NH033x-L and NH050x-L Series Power Modules: 5 Vdc Input; 1.2 Vdc to 3.3 Vdc Output; 10 A and 15 A Thermal Considerations (continued) DISSIPATION,P D (W) Convection Requirements for Cooling POWER 6.0 5.5 5.0 4.5 POWER DISSIPATION,P D (W) (continued) 4.0 3.5 V I = 5.5 V V I = 5.0 V V I = 4.5 V 3.0 2.5 6.0 5.5 5.0 4.5 4.0 3.5 V I = 5.5 V V I = 5.0 V V I = 4.5 V 3.0 2.5 2.0 1.5 1.0 0.5 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 OUTPUT CURRENT, IO (A) 2.0 8-2451(C) 1.5 1.0 0.5 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Figure 45. NH050S1R8-L Typical Power Dissipation vs. Output Current, TA = 25 °C OUTPUT CURRENT, IO (A) 8-2450(C) Figure 43. NH050M-L Typical Power Dissipation vs. Output Current, TA = 25 °C POWER 3.0 2.5 POWER DISSIPATION,P D (W) 3.5 V I= 5.5 V V I= 5.0 V V I = 4.5 V 2.0 3.0 V I= 5.5 V V I= 5.0 V V I = 4.5 V 2.5 2.0 1.5 1.0 0.5 0 1.5 1 2 3 4 5 6 7 8 9 10 OUTPUT CURRENT, IO (A) 8-2445(C) 1.0 0.5 0 DISSIPATION,P D (W) 3.5 1 2 3 4 5 6 7 8 9 10 Figure 46. NH033G-L Typical Power Dissipation vs. Output Current, TA = 25 °C OUTPUT CURRENT, IO (A) 8-2447(C) Figure 44. NH033S1R8-L Typical Power Dissipation vs. Output Current, TA = 25 °C Lineage Power 15 NH033x-L and NH050x-L Series Power Modules: 5 Vdc Input; 1.2 Vdc to 3.3 Vdc Output; 10 A and 15 A Thermal Considerations (continued) DISSIPATION,P D (W) Convection Requirements for Cooling POWER 6.0 5.5 5.0 POWER DISSIPATION,P D (W) (continued) 4.5 4.0 V I = 5.5 V V I = 5.0 V V I = 4.5 V 3.5 3.0 Data Sheet March 2010 6.0 5.5 5.0 4.5 4.0 V I = 5.5 V V I = 5.0 V 3.5 3.0 V I = 4.5 V 2.5 2.0 1.5 1.0 0.5 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 2.5 OUTPUT CURRENT, IO (A) 2.0 8-2448(C) 1.5 1.0 0.5 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Figure 49. NH050F-L Typical Power Dissipation vs. Output Current, TA = 25 °C OUTPUT CURRENT, IO (A) 8-2449(C) Figure 47. NH050G-L Typical Power Dissipation vs. Output Current, TA = 25 °C With the known power dissipation and a given local ambient temperature, the minimum airflow can be chosen from the derating curves in Figures 50 and 51. POWER DISSIPATION, PD (W) 4 POWER DISSIPATION,P D (W) 3.5 3.0 2.5 V I= 5.5 V V I= 5.0 V V I = 4.5 V 2.0 1.5 TYPICAL 5.5I,V 10 AOUT DISSIPATION TYPICAL 5.0I,V 10 AOUT DISSIPATION 3 2 NATURAL CONVECTION 0.5 m/s (100 ft./min.) 1.0 m/s (200 ft./min.) 1.5 m/s (300 ft./min.) 2.0 m/s (400 ft./min.) 3.0 m/s (600 ft./min.) 1 0 1.0 0.5 0 0 25 35 45 55 65 75 85 95 105 115 125 AMBIENT TEMPERATURE, T A (˚C) 1 2 3 4 5 6 7 8 9 10 OUTPUT CURRENT, IO (A) 8-2444(C) 8-1425(C).c Figure 50. NH033x-L Power Derating vs. Local Ambient Temperature and Air Velocity Figure 48. NH033F-L Typical Power Dissipation vs. Output Current, TA = 25 °C 16 Lineage Power Data Sheet March 2010 NH033x-L and NH050x-L Series Power Modules: 5 Vdc Input; 1.2 Vdc to 3.3 Vdc Output; 10 A and 15 A Thermal Considerations (continued) Convection Requirements for Cooling (continued) POWER DISSIPATION, PD (W) 6 TYPICAL 5.5 I,V 15 AOUT DISSIPATION 5 TYPICAL 5.0 I,V 15 AOUT DISSIPATION 4 NATURAL CONVECTION 0.5 m/s (100 1.0 m/s (200 1.5 m/s (300 2.0 m/s (400 3.0 m/s (600 3 2 For example, if the NH050F-L dissipates 4 W of heat, the minimum airflow in a 65 °C environment is 1 m/s (200 ft./min.). 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 41 to ensure it does not exceed 115 °C. ft./min.) ft./min.) ft./min.) ft./min.) ft./min.) 1 0 5 15 25 35 45 55 65 75 85 95 105 115 AMBIENT TEMPERATURE, T A (˚C) 8-1426(C).b Figure 51. NH050x-L Power Derating vs. Local Ambient Temperature and Air Velocity Lineage Power 17 NH033x-L and NH050x-L Series Power Modules: 5 Vdc Input; 1.2 Vdc to 3.3 Vdc Output; 10 A and 15 A Data Sheet March 2010 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.). 69.9 (2.75) Top View LABEL* 25.4 (1.00) Side View 5.84 (0.230) SQUARE PIN 0.64 x 0.64 (0.025 x 0.025) 25.4 (1.00) 8.6 (0.34) MAX Bottom View 48.3 (1.90) 17.3 (0.68) 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) * Label includes product designation and date code. 18 17.8 20.3 (0.70) (0.80 7.62 (0.300) 8-1176(C).b Lineage Power Data Sheet March 2010 NH033x-L and NH050x-L Series Power Modules: 5 Vdc Input; 1.2 Vdc to 3.3 Vdc Output; 10 A and 15 A 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) 70.4 (2.77) MAX J2 4 1 5 25.9 (1.02) MAX 8 5 4 8 1 7.62 2.54 (0.300) 20.32 (0.100) 17.78 (0.800 (0.700) 5.08 (0.200) J1 2.54 (0.100) 2.03 (0.080) 40.64 (1.600) 43.18 (1.700) 45.72 (1.800) 48.26 (1.900) 17.53 (0.690) 8-1176(C).b Lineage Power Pin Function Pin Function J1 - 1 J1 - 2 J1 - 3 J1 - 4 J1 - 5 J1 - 6 J1 - 7 J1 - 8 Remote On/Off No Connection TRIM GND GND VI VI VI J2 - 1 J2 - 2 J2 - 3 J2 - 4 J2 - 5 J2 - 6 J2 - 7 J2 - 8 SENSE (–) SENSE (+) VO VO VO VO GND GND 19 NH033x-L and NH050x-L Series Power Modules: 5 Vdc Input; 1.2 Vdc to 3.3 Vdc Output; 10 A and 15 Data Sheet March 2010 Ordering Information Please contact your Lineage Power Account Manager or Field Application Engineer for pricing and availability. Table 3. Device Codes Input Voltage Output Voltage Output Power Device Code Comcode 5V 1.5 V 15 W NH033M-L 107993685 5V 1.8 V 18 W NH033S1R8-L 107940306 5V 2.5 V 25 W NH033G-L 107917122 5V 3.3 V 33 W NH033F-L 107859928 5V 1.5 V 22.5 W NH050M-L 107993693 5V 1.8 V 27 W NH050S1R8-L 107940314 5V 2.5 V 37.5 W NH050G-L 107917130 5V 3.3 V 50 W NH050F-L 107917148 Table 4. Device Options Option Suffix Tight tolerance output Short pins: 2.79 mm ± 0.25 mm (0.110 in. ± 0.010 in.) 2 8 A s ia -P a cific Hea dquarters Tel: +65 6593 7211 World Wide Headquarters L ineage P ower C orpora tion 601 Shiloh Road, Plano, TX 75074, USA +1-800-526-7819 (Outside U.S.A.: +1-972-244-9428) www.linea gepower.com e-ma il: techs upport1@ lineagepower.c om E urope, Middle-E a s t and Africa Hea dquarters Tel: +49 898 780 672 80 India Headquarters Tel: +91 80 28411633 Lineage Power 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. Lineage Power DC-DC products are protected under various patents. Information on these patents is available at www.lineagepower.com/patents. © 2009 Lineage Power Corporation, (Plano, Texas) All International Rights Reserved. April 2008 FDS01-070EPS (Replaces FDS01-069EPS)