Lineage Power NH050S1R8-L Power modules 5 vdc input; 1.2 vdc to 3.3 vdc output; 10 a and 15 a Datasheet

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)
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