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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
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Small size: 69.9 mm x 25.4 mm x 8.6 mm (2.75 in. x 1.00 in. x 0.34 in.) Non-isolated output Constant frequency High efficiency: 91% typical Overcurrent protection Remote on/off Output voltage adjustment: 90% to 110% of VO, nom: VO S 2.5 V 100% to 120% of VO, nom: VO < 2.5 V Overtemperature protection Remote sense UL* 60950 Recognized, CSA C22.2 No. 6095000 Certified, VDE 0805 (IEC60950) Licensed Meets FCC Class A radiated limits
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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.
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Applications
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Distributed power architectures Servers Workstations Desktop computers
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Options
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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 www..com frame power modules have a maximum output current rating of 10 A and 15 A, respectively, at typical full-load efficiencies of 91%.
CSA is a registered trademark of Canadian Standards Association.
* UL is a registered trademark of Underwriters Laboratories, Inc.
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 Input Voltage (continuous) On/Off Terminal Voltage Operating Ambient Temperature*: NH033X-L NH050x-L Storage Temperature Device All All All All All Symbol VI Von/off TA TA Tstg Min -- -- 0 0 -55 Max 7.0 6.0 62 49 125 Unit Vdc Vdc C C 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 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 Input Reflected-ripple Current, Peak-to-peak (5 Hz to 20 MHz, 500 nH source impedance; see Figure 33.) Input Ripple Rejection (120 Hz) 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 www..com 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. Symbol VI VI Min 4.75 4.5 Typ -- 5.0 Max -- 5.5 Unit Vdc Vdc
II, max II, max II
-- -- --
-- -- 300
10 16 --
A A mAp-p
--
--
60
--
dB
2
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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 Output Voltage Set Point (VI = 5.0 V; IO = IO, max; TA = 25 C) Device NH0xxM-L NH0xxS1R8-L NH0xxG-L NH0xxF-L NH0xxM-L NH0xxS1R8-L NH0xxG-L NH0xxF-L All All All Symbol VO, set VO, set VO, set VO, set VO VO VO VO -- -- -- Min 1.45 1.74 2.42 3.18 1.43 1.71 2.40 3.16 -- -- -- Typ 1.5 1.8 2.5 3.3 -- -- -- -- 0.1 0.1 -- Max 1.55 1.86 2.58 3.39 1.58 1.89 2.60 3.44 0.3 0.3 17 Unit Vdc Vdc Vdc Vdc Vdc Vdc Vdc Vdc %VO %VO mV
Output Voltage (Over all operating input voltage, resistive load, and temperature conditions until end of life; see Figure 35.) 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 Voltage (See Figure 34.): RMS Peak-to-peak (5 Hz to 20 MHz) External Load Capacitance (See Design Considerations section.) Output Current (See Derating Curves Figures 50 and 51.) Output Current-limit Inception (VO = 90% of VO, set; TQ32 = 80 C; see Feature Descriptions section.) Output Short-circuit Current Efficiency (VI = 5.0 V; IO = IO, max; TA = 25 C; see Figure 35.)
All All All NH033X-L NH050x-L All
-- -- -- IO IO IO
-- -- 0 0 0 103
-- -- -- -- -- --
25 100 15,000 10.0 15.0 200
mVrms mVp-p F A A %IO, max
All NH033M-L NH033S1R8-L NH033G-L NH033F-L NH050M-L NH050S1R8-L NH050G-L NH050F-L All
IO --
-- 80 82 87 90 77 81 85 89 --
170 83 85 89 92 81 83 87 90.5 265
-- -- -- -- -- -- -- -- -- --
%IO, max % % % % % % % % kHz
Switching Frequency 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 www..com 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
All All
-- --
-- --
20 200
-- --
mV s
All All
-- --
-- --
20 200
-- --
mV s
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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 Calculated MTBF (IO = 80% of IO, max; TA = 40 C) Weight -- Min Typ 1,300,000 -- 14 (0.5) Max Unit hours g (oz.)
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 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 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 = IO, max; VO within 1% of steady state; see Figures 25--32.) 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.) Symbol Min Typ Max Unit
Von/off Ion/off Von/off Ion/off --
-0.7 -- -- -- --
-- -- -- -- 3.0
0.3 50 6.0 10 --
V A V mA ms
-- -- VTRIM VTRIM TQ32
-- -- 90 100 115
-- -- -- -- 120
10 20 110 120 --
% VO, nom % VO, nom % VO, nom % VO, nom C
* Total adjustment of trim and remote sense combined should not exceed 10% for VO 2.5 V or 20% for VO < 2.5 V.
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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
6 5 INPUT CURRENT, II (A) 4 3 2 1 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
8-2415
12 10 INPUT CURRENT, II (A) 8 6 4 2 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, V I (V)
8-2420
IO = 15 A
IO = 10 A
INPUT VOLTAGE, V I (V)
Figure 1. NH033M-L Input Characteristics, TA = 25 C
Figure 4. NH050S1R8-L Input Characteristics, TA = 25 C
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10 9 INPUT CURRENT, II (A) 8 7 6 5 4 3 2 1 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 IO = 15 A
8 INPUT CURRENT, II (A) 7 6 5 4 3 2 1 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 IO = 10 A
INPUT VOLTAGE, V I (V)
8-2414
INPUT VOLTAGE, VI (V)
8-2419
Figure 2. NH050M-L Input Characteristics, TA = 25 C
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Figure 5. NH033G-L Input Characteristics, TA = 25 C
14 12
IO = 10 A INPUT CURRENT, II (A)
INPUT CURRENT, I (A) I
6 5 4 3 2
I = 15 A O
10 8 6 4 2 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)
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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, V I (V)
8-2416
8-2418
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
Data Sheet March 2010
Characteristics Curves (continued)
OUTPUT VOLTAGE, VO (V)
9 8 INPUT CURRENT, I (A) I 7 6 5 4 3 2 1 I = 10 A O
1.6 1.4 VI = 5.0 (V) 1.2 1.0 0.8 0.6 0.4 0.2 0.0 0 2 4 6 8 10 12 14 16 18 20 22 24 26
O OUTPUT CURRENT, I (A)
0 0 1 2 3 4 5 6
8-2427(C)
INPUT VOLTAGE, VI(V)
8-2413(C)
Figure 10. NH050M-L Current Limit, TA = 25 C
Figure 7. NH033F-L Input Characteristics, TA = 25 C
1.8 1.6 VI = 5.0 V OUTPUT VOLTAGE, VO (V)
14 12 INPUT CURRENT, I (A) I 10 8 6 4 2 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)
1.4 1.2 1.0 0.8 0.6 0.4 0.2 0.0 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 1819 20
O OUTPUT CURRENT, I (A)
I = 15 A O
8-2424(C)
Figure 11. NH033S1R8-L Current Limit, TA = 25 C
Figure 8. NH050F-L Input Characteristics, TA = 25 C
1.8 OUTPUT VOLTAGE, VO (V) 1.6 VI= 5.0(V) 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0.0 0 2 4 6 8 10 12 14 16 18 20 22 24 26
8-2428(C)
1.6 OUTPUT VOLTAGE, VO (V) 1.4 1.2 1.0 0.8 0.6 VI = 5.0 V
0.4 www..com 0.2 0.0 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
O OUTPUT CURRENT, I (A)
O OUTPUT CURRENT, I (A)
8-2423(C)
Figure 12. NH050S1R8-L Current Limit, TA = 25 C Lineage Power
Figure 9. NH033M-L Current Limit, TA = 25 C 6
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, VO (V)
2.5 OUTPUT VOLTAGE, VO (V)
3.5 3.0 2.5 2.0 1.5 1.0 0.5 VI = 5.0 V
2.0
VI = 5.0 V
1.5
1.0
0.5
0.0 0
2
4
6
8
10 12
14 16 18
20 22
24
0.0 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
O OUTPUT CURRENT, I (A)
OUTPUT CURRENT, I (A) O
8-2425(C)
8-2422(C)
Figure 16. NH050F-L Current Limit, TA = 25 C
Figure 13. NH033G-L Current Limit, TA = 25 C
86.0
2.5 OUTPUT VOLTAGE, VO (V) VI = 5.0 V 2.0
EFFICIENCY, (%)
85.5 VI = 4.5 V 85.0 84.5 VI = 5.0 V 84.0 83.5 83.0 VI = 5.5 V 82.5
1.5
1.0
0.5
82.0 0 1 2 3 4 5 6 7 8 9 10
0.0 0
2
4
6
8
10 12 14 16 18 20 22 24 26 28
OUTPUT CURRENT, IO (A)
8-2431(C)
OUTPUT CURRENT, I (A) O
8-2426(C)
Figure 17. NH033M-L Efficiency, TA = 25 C
Figure 14. NH050G-L Current Limit, TA = 25 C
86
3.5 OUTPUT VOLTAGE, VO (V) 3.0 2.5 2.0 1.5 1.0 0.5 0.0 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 1819
O OUTPUT CURRENT, I (A)
VI = 4.5 V 85 EFFICIENCY, (%) VI = 5.0V VI = 5.5 V 84
VI = 5 V
83
82
81 80 0
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
OUTPUT CURRENT, IO (A)
8-2435(C)
8-2421(C)
Figure 18. NH050M-L Efficiency, TA = 25 C 7
Figure 15. NH033F-L Current Limit, TA = 25 C Lineage Power
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
Characteristics Curves (continued)
87.5
EFFICIENCY, (%)
91 VI = 4.5 V 90 VI = 5.0 V VI = 5.5 V
87.0 EFFICIENCY, (%) 86.5 86.0 85.5 85.0
VI = 4.5 V
89
88
VI = 5.0 V
87
VI = 5.5 V
86 85
84.5 84.0 0 1 2 3 4 5 6 7 8 9 10
0
1
2
3
4
5
6
7
8
9
10 11 12 13
14 15
OUTPUT CURRENT, IO (A)
8-2434(C)
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
87.0 86.5 86.0 EFFICIENCY, (%) 85.5 85.0 84.5 84.0 83.5 83.0 82.5 82.0 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 VI = 4.5 V VI = 5.0 V VI = 5.5 V
92.5 EFFICIENCY, (%) 92.0 91.5 VI = 5.5 V 91.0 90.5 90.5 0 1 2 3 4 5 6 7 8 9 10
VI = 5.0 V
OUTPUT CURRENT, IO (A)
8-2429(C)
OUTPUT CURRENT, IO (A)
8-2436(C)
Figure 23. NH033F-L Efficiency, TA = 25 C
Figure 20. NH050S1R8-L Efficiency, TA = 25 C
93.0 92.5
90.5
EFFICIENCY, (%)
90.0 EFFICIENCY, (%) 89.5 89.0 88.5 88.0 87.5
VI = 4.5 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 88.5 88.0 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
VI = 5.0 V
VI = 5.5 V
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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 Lineage Power
Figure 21. NH033G-L Efficiency, TA = 25 C 8
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)
REMOTE ON/OFF, V) VON/OFF ( OUTPUT VOLTAGE, VO (V) (1 V/div.)
OUTPUT VOLTAGE, VO (V) (1 V/div.)
REMOTE ON/OFF, VON/OFF ( V)
TIME, t (500 s/div)
8-2440(C)
TIME, t (500 s/div)
8-2439(C)
Figure 27. NH033S1R8-L Typical Start-Up from Remote On/Off, VI = 5 V, IO = 10 A
Figure 25. NH033M-L Typical Start-Up from Remote On/Off, VI = 5 V, IO = 10 A
REMOTE ON/OFF, VON/OFF (V) OUTPUT VOLTAGE, VO (V) (1 V/div.)
OUTPUT VOLTAGE, VO (V) (500mV/div.)
REMOTE ON/OFF, V) VON/OFF (
TIME, t (500 s/div)
8-2452(C)
TIME, t (500 s/div)
8-2442(C)
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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
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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
Characteristics Curves (continued)
REMOTE ON/OFF, VON/OFF ( V) OUTPUT VOLTAGE, VO (V) (1 V/div.)
OUTPUT VOLTAGE, VO (V) (1 V/div.)
REMOTE ON/OFF, VON/OFF (V)
TIME, t (500 s/div)
8-2437(C)
TIME, t (500 s/div)
8-2438(C)
Figure 31. NH033F-L Typical Start-Up from Remote On/Off, VI = 5 V, IO = 10 A
Figure 29. NH033G-L Typical Start-Up from Remote On/Off, VI = 5 V, IO = 10 A
REMOTE ON/OFF, VON/OFF (V) OUTPUT VOLTAGE, VO (V) (1 V/div.)
OUTPUT VOLTAGE, VO (V) (1 V/div.)
REMOTE ON/OFF, V) VON/OFF (
TIME, t (500 s/div)
8-2441(C)
TIME, t (500 s/div)
8-2443(C)
Figure 32. NH050F-L Typical Start-Up from Remote On/Off, VI = 5 V, IO = 15 A
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Figure 30. NH050G-L Typical Start-Up from Remote On/Off, VI = 5 V, IO = 15 A
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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
TO OSCILLOSCOPE CURRENT PROBE VI(+)
Design Considerations
Input Source Impedance
LTEST 500 H CS 220 F ESR < 0.1 @ 20 C, 100 kHz
BATTERY
CI 470 F ESR < 0.2 @ 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.
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 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 pins is less than 1 Vp-p at IO = IO, max. (See Figures 33, 36, and 37.) The 470 F 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).
TO OSCILLOSCOPE CURRENT PROBE VI 1 H (MAX)
Figure 33. Input Reflected-Ripple Test Setup
COPPER STRIP VO 1.0 F
GND
1000 F SCOPE
RESISTIVE LOAD
8-513(C).r
Note: Use a 0.1 F ceramic capacitor and a 1,000 F aluminum or tantalum capacitor (ESR = 0.05 3/4 @ 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.
LSOURCE
Figure 34. Peak-to-Peak Output Noise Measurement Test Setup
SUPPLY
C1 470 F
+
C2 10 F (MAX) GND
CONTACT AND DISTRIBUTION LOSSES VI I I SUPPLY GND VO SENSE(+) SENSE(-) I O LOAD
8-1215(C).a
Figure 36. 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 NH033X-L or NH050x-L, provided the source inductance (LSOURCE) is less than 1 H (see Figure 36).
CONTACT RESISTANCE
8-1173(C).a
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socketing, place Kelvin connections at module terminals to avoid measurement errors due to socket contact resistance.
VO x IO = ----------------------- x 100 VI x II
%
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)
Input Source Impedance (continued)
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
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 60950, CSA C22.2 No. 60950-00, and VDE 0805 (IEC60950). 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
SUPPLY
+ C1 470 F
C2
GND
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.
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 F x 0.05 = 50 x 10-6). For complex or very low ESR filters, consult the Technical Support for stability analysis.
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 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. Leave the remote ON/OFF pin open if not using that feature. 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
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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 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 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
Feature Descriptions (continued)
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.
+ Vswitch + Von/off
Vo
ON/OFF I on/off
For the F (3.3 VO) module: 18.23 Rtrim-down = ----------------------------- - 47.2 k VO - VO , adj
GND
8-1175(C).a
For the G (2.5 VO) module: 6.98 Rtrim-down = ----------------------------- - 24 k VO - VO , adj Note: Output voltages below 2.5 V cannot be trimmed down. 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 Rtrim-up = ----------------------------- - 10 k VO , adj - VO For all other modules: 28 Rtrim-up = ----------------------------- - 33.2 k VO , adj - VO Leave the TRIM pin open if not using that feature.
Figure 38. Remote On/Off Implementation
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.
Overvoltage Protection
Overvoltage protection is not provided in the power module. External circuitry is required to provide overvoltage protection.
SENSE(+) SENSE(-) VI VO I O GND CONTACT RESISTANCE SUPPLY CONTACT AND DISTRIBUTION LOSSES LOAD
8-651(C).i
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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
Data Sheet March 2010
Feature Descriptions (continued)
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.
Proper cooling can be verified by measuring the power module's temperature at lead 7 of Q32 as shown in Figure 41.
Q32
LEAD #7
Thermal Considerations
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. 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.
8-1149(C).b
Figure 41. Temperature Measurement Location 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.
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 DISSIPATION,PD (W) 3.0 2.5 2.0 1.5 1.0 0.5 0
VI= 5.5 V VI= 5.0 V VI = 4.5 V
203.2 (8.0) AIRFLOW
POWER
1
2
3
4
5
6
7
8
9
10
25.4 (1.0)
POWER MODULE
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AIR VELOCITY AND AMBIENT TEMPERATURE MEASURED HERE
O OUTPUT CURRENT, I (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,PD (W)
Convection Requirements for Cooling
(continued)
6.0 5.5 5.0 4.5 4.0 3.5 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 VI = 5.5 V VI = 5.0 V VI = 4.5 V
DISSIPATION,PD (W)
6.0 5.5 5.0 4.5 4.0 3.5 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 VI = 5.5 V VI = 5.0 V VI = 4.5 V
POWER
POWER
OUTPUT CURRENT, I (A) O
8-2451(C)
Figure 45. NH050S1R8-L Typical Power Dissipation vs. Output Current, TA = 25 C
OUTPUT CURRENT, I (A) O
8-2450(C)
3.5 DISSIPATION,PD (W)
Figure 43. NH050M-L Typical Power Dissipation vs. Output Current, TA = 25 C
3.0 2.5 2.0 1.5 1.0 0.5 0 VI= 5.5 V VI= 5.0 V VI = 4.5 V
3.5 DISSIPATION,PD (W) 3.0 2.5 2.0 1.5 1.0 0.5 0
VI= 5.5 V VI= 5.0 V VI = 4.5 V
POWER
1
2
3
4
5
6
7
8
9
10
POWER
O OUTPUT CURRENT, I (A)
8-2445(C)
1
2
3
4
5
6
7
8
9
10
Figure 46. NH033G-L Typical Power Dissipation vs. Output Current, TA = 25 C
O OUTPUT CURRENT, I (A)
8-2447(C)
Figure 44. NH033S1R8-L Typical Power Dissipation vs. Output Current, TA = 25 C
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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
Thermal Considerations (continued)
DISSIPATION,PD (W)
Convection Requirements for Cooling
(continued)
6.0 5.5 5.0 4.5 4.0 3.5 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 VI = 5.5 V VI = 5.0 V VI = 4.5 V
DISSIPATION,PD (W)
6.0 5.5 5.0 4.5 4.0 3.5 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 VI = 5.5 V VI = 5.0 V VI = 4.5 V
POWER
POWER
OUTPUT CURRENT, I (A) O
8-2448(C)
Figure 49. NH050F-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.
4 POWER DISSIPATION, P (W) D TYPICAL 5.5I V , OUT DISSIPATION 10 A TYPICAL 5.0I V , 10 A OUT DISSIPATION
O OUTPUT CURRENT, I (A)
8-2449(C)
Figure 47. NH050G-L Typical Power Dissipation vs. Output Current, TA = 25 C
3.5 DISSIPATION,PD (W) 3.0 2.5 2.0 1.5 1.0 0.5 0
3
2
VI= 5.5 V VI= 5.0 V VI = 4.5 V
1
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.) 0 25 35 45 55 65 75 85 95 105 115 125
POWER
0 AMBIENT TEMPERATURE, T A (C)
1
2
3
4
5
6
7
8
9
10
8-1425(C).c
O OUTPUT CURRENT, I (A)
8-2444(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
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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
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.
Thermal Considerations (continued)
Convection Requirements for Cooling
(continued)
6
TYPICAL 5.5 IV , OUT DISSIPATION 15 A TYPICAL 5.0 IV , 15 A OUT DISSIPATION 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
POWER DISSIPATION, P (W) D
5
4
3
2
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
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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) LABEL*
Top View
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) 45.7 (1.80) 43.2 (1.70) 40.6 (1.60) 2.54 (0.100)
17.3 (0.68)
1.8 (0.07) 5.08 (0.200)
2.54 (0.100)
17.8 20.3 (0.70) (0.80 7.62 (0.300)
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* Label includes product designation and date code.
8-1176(C).b
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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 5 25.9 (1.02) MAX 1 8 7.62 2.54 (0.300) 20.32 (0.100) 17.78 (0.800 (0.700) 5.08 (0.200) 2.03 (0.080)
5 8
4 1 J1
2.54 (0.100) 40.64 (1.600) 43.18 (1.700) 45.72 (1.800) 48.26 (1.900)
17.53 (0.690)
8-1176(C).b
Pin J1 - 1 J1 - 2 J1 - 3 J1 - 4 J1 - 5 J1 - 6 J1 - 7 J1 - 8
Function Remote On/Off No Connection TRIM GND GND VI VI VI
Pin J2 - 1 J2 - 2 J2 - 3 J2 - 4 J2 - 5 J2 - 6 J2 - 7 J2 - 8
Function SENSE (-) SENSE (+) VO VO VO VO GND GND
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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 5V 5V 5V 5V 5V 5V 5V 5V Table 4. Device Options Option Tight tolerance output Short pins: 2.79 mm 0.25 mm (0.110 in. 0.010 in.) Suffix 2 8 Output Voltage 1.5 V 1.8 V 2.5 V 3.3 V 1.5 V 1.8 V 2.5 V 3.3 V Output Power 15 W 18 W 25 W 33 W 22.5 W 27 W 37.5 W 50 W Device Code NH033M-L NH033S1R8-L NH033G-L NH033F-L NH050M-L NH050S1R8-L NH050G-L NH050F-L Comcode 107993685 107940306 107917122 107859928 107993693 107940314 107917130 107917148
A s ia -P a cific Hea dquarters Tel: +65 6593 7211 E urope, Middle-E a s t and Africa Hea dquarters Tel: +49 898 780 672 80 India Headquarters Tel: +91 80 28411633
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 www..com e-ma il: techs upport1@ lineagepower.c om
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. (c) 2009 Lineage Power Corporation, (Plano, Texas) All International Rights Reserved.
April 2008
FDS01-070EPS (Replaces FDS01-069EPS)

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