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PDF NH050x-L Data sheet ( Hoja de datos )
| Número de pieza | NH050x-L | |
| Descripción | Power Modules | |
| Fabricantes | 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
The NH033x-L and NH050x-L Series Power Modules use
advanced, surface-mount technology and deliver high-qual-
ity, compact, dc-dc conversion at an economical price.
Applications
n Distributed power architectures
n Servers
n Workstations
n Desktop computers
Features
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 Non-isolated output
n Constant frequency
n High efficiency: 91% typical
n Overcurrent protection
n Remote on/off
n 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 Overtemperature protection
n Remote sense
n UL* 60950 Recognized, CSA† C22.2 No. 60950-
00 Certified, VDE 0805 (IEC60950) Licensed
n Meets FCC Class A radiated limits
Options
n Tight tolerance output
n 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.DataSheeftr4aUm.ceompower 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.
1 page  
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
IO = 10 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
INPUT VOLTAGE, V I (V)
Figure 1. NH033M-L Input Characteristics,
TA = 25 °C
8-2415
10
9
8 IO = 15 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
INPUT VOLTAGE, VI (V)
Figure 2. NH050M-L Input Characteristics,
TA = 25 °C
8-2419
12
10
IO = 15 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
Figure 4. NH050S1R8-L Input Characteristics,
TA = 25 °C
9
8
IO = 10 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
INPUT VOLTAGE, V I (V)
Figure 5. NH033G-L Input Characteristics,
TA = 25 °C
8-2414
7
6 IO = 10 A
5
4
3
2
www.DataSheet4U.c1om
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
Figure 3. NH033S1R8-L Input Characteristics,
TA = 25 °C
Lineage Power
14
12 IO = 15 A
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)
Figure 6. NH050G-L Input Characteristics,
TA = 25 °C
8-2418
5
5 Page 
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
TO OSCILLOSCOPE
LTEST
500 µH
CURRENT
PROBE
BATTERY
CS 220 µF
ESR < 0.1 Ω
@ 20 ˚C, 100 kHz
CI 470 µF
ESR < 0.2 Ω
@ 100 kHz
VI(+)
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
VO
GND
COPPER STRIP
1.0 µF
1000 µF SCOPE
RESISTIVE
LOAD
8-513(C).r
Note: Use a 0.1 µF ceramic capacitor and a 1,000 µF aluminum or
tantalum capacitor (ESR = 0.05 ¾ @ 100 kHz). Scope mea-
surement 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
Input Source Impedance
The power module should be connected to a low ac-
impedance 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 capaci-
tors 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).
TO OSCILLOSCOPE
LSOURCE
CURRENT
PROBE
1 µH (MAX)
VI
SUPPLY
+
C1
470 µF
C2
10 µF (MAX)
GND
II
SUPPLY
CONTACT AND
DISTRIBUTION LOSSES
VI VO
SENSE(+)
SENSE(-)
GND
IO
LOAD
CONTACT RESISTANCE
8-1173(C).a
www.DataNShoteee:t4AUll.cmoemasurements are taken at the module terminals. When
socketing, place Kelvin connections at module terminals to
avoid measurement errors due to socket contact resistance.
η = -V--V--O---I----××-------II--OI-- x 100
%
Figure 35. Output Voltage and Efficiency
Measurement Test Setup
Lineage Power
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 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).
11
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