LINEAGEPOWER NSR020A0X43Z

Data Sheet
July 28, 2009
Naos Raptor 20A: Non-Isolated Power Modules
4.5 – 14Vdc input; 0.59Vdc to 6Vdc Output; 20A Output Current
Features
RoHS Compliant
Applications
ƒ
Compliant to RoHS EU Directive 2002/95/EC (Z
versions)
ƒ
Compatible in a Pb-free or SnPb wave-soldering
environment (Z versions)
ƒ
ƒ
Wide input voltage range (4.5Vdc-14Vdc)
ƒ
Tunable Loop
response
ƒ
Fixed switching frequency
ƒ
Output overcurrent protection (non-latching)
ƒ
Over temperature protection
Output voltage programmable from 0.59Vdc to 6Vdc
via external resistor
TM
ƒ
Distributed power architectures
ƒ
Remote On/Off
ƒ
Intermediate bus voltage applications
Remote Sense
ƒ
Telecommunications equipment
ƒ
Servers and storage applications
ƒ
ƒ
ƒ
ƒ
Networking equipment
to optimize dynamic output voltage
Power Good Signal
Small size:
36.8 mm x 15.5 mm x 9.2 mm
(1.45 in. x 0.61 in. x 0.36 in)
ƒ
ƒ
Wide operating temperature range (-40°C to 85°C)
ƒ
ISO** 9001 and ISO 14001 certified manufacturing
facilities
†
UL* 60950 Recognized, CSA C22.2 No. 60950-00
Certified, and VDE‡ 0805 (EN60950-1 3rd edition)
Licensed
Description
The Naos Raptor 20A SIP power modules are non-isolated dc-dc converters in an industry standard package that
can deliver up to 20A of output current with a full load efficiency of 91% at 3.3Vdc output voltage (VIN = 12Vdc).
These modules operate over a wide range of input voltage (VIN = 4.5Vdc-13.8Vdc) and provide a precisely regulated
output voltage from 0.59Vdc to 6Vdc, programmable via an external resistor. Features include remote On/Off,
adjustable output voltage, over current and over temperature protection. A new feature, the Tunable LoopTM, allows
the user to optimize the dynamic response of the converter to match the load.
* UL is a registered trademark of Underwriters Laboratories, Inc.
†
CSA is a registered trademark of Canadian Standards Association.
VDE is a trademark of Verband Deutscher Elektrotechniker e.V.
** ISO is a registered trademark of the International Organization of Standards
‡
Document No: DS06-127 ver. 1.07
PDF name: NSR020A0X_ds.pdf
Data Sheet
July 28, 2009
Naos Raptor 20A: Non Isolated Power Module:
4.5 – 14Vdc input; 0.59Vdc to 6Vdc Output; 20A output current
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 the device reliability.
Parameter
Device
Symbol
Min
Max
Unit
All
VIN
All
TA
-0.3
15
Vdc
-40
85
°C
All
Tstg
-55
125
°C
Input Voltage
Continuous
Operating Ambient Temperature
(see Thermal Considerations section)
Storage Temperature
Electrical Specifications
Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature
conditions.
Parameter
Device
Symbol
Min
Typ
Max
Unit
Operating Input Voltage
All
VIN
4.5
12.0
13.8
Vdc
Maximum Input Current
All
IIN,max
20
Adc
VO,set = 0.6 Vdc
IIN,No load
50
mA
VO,set = 5.0Vdc
IIN,No load
110
mA
All
IIN,stand-by
6.08
mA
Inrush Transient
All
It
Input Reflected Ripple Current, peak-to-peak
(5Hz to 20MHz, 1μH source impedance; VIN, min to
VIN, max, IO= IOmax ; See Test configuration section)
All
34.4
Input Ripple Rejection (120Hz)
All
43
(VIN= VIN, min to VIN, max, IO=IO, max VO,set = 3.3Vdc)
Input No Load Current
(VIN = 12Vdc, IO = 0, module enabled)
Input Stand-by Current
(VIN = 12Vdc, module disabled)
LINEAGE POWER
2
1
2
As
mAp-p
dB
2
Data Sheet
July 28, 2009
Naos Raptor 20A: Non Isolated Power Module:
4.5 – 14Vdc input; 0.59Vdc to 6Vdc Output; 20A output current
Electrical Specifications (continued)
Parameter
Device
Symbol
Min
Output Voltage Set-point (with 0.5% tolerance
for external resistor used to set output voltage)
All
VO, set
-1.5
Output Voltage
All
VO, set
–3.0
All
VO
0.59
Typ
⎯
Max
Unit
+1.5
% VO, set
+3.0
% VO, set
6
Vdc
(Over all operating input voltage, resistive load,
and temperature conditions until end of life)
Adjustment Range
Selected by an external resistor
Output Regulation (for VO ≥ 2.5V)
Line (VIN=VIN, min to VIN, max)
All
Load (IO=IO, min to IO, max
All
-0.2
⎯
+0.2
% VO, set
⎯
0.8
% VO, set
⎯
+5
mV
⎯
20
mV
Output Regulation (for VO < 2.5V)
Line (VIN=VIN, min to VIN, max)
All
Load (IO=IO, min to IO, max)
All
-5
Output Ripple and Noise on nominal output
(VIN=VIN, nom and IO=IO, min to IO, max, Cout = 0μF)
Peak-to-Peak (5Hz to 20MHz bandwidth)
Vo = 0.59V
⎯
20
mVpk-pk
Peak-to-Peak (5Hz to 20MHz bandwidth)
Vo = 1.2V
⎯
23
mVpk-pk
Peak-to-Peak (5Hz to 20MHz bandwidth)
Vo = 1.8V
⎯
25
mVpk-pk
Peak-to-Peak (5Hz to 20MHz bandwidth)
Vo = 2.5V
⎯
30
mVpk-pk
Peak-to-Peak (5Hz to 20MHz bandwidth)
Vo = 3.3V
⎯
40
mVpk-pk
Peak-to-Peak (5Hz to 20MHz bandwidth)
Vo = 5.0V
⎯
50
mVpk-pk
Peak-to-Peak (5Hz to 20MHz bandwidth)
Vo = 6.0V
⎯
60
mVpk-pk
300
μF
External Capacitance
1`
TM
Without the Tunable Loop
All
CO, max
⎯
⎯
ESR ≥ 0.15 mΩ
All
CO, max
0
⎯
1500
μF
ESR ≥ 10 mΩ
All
CO, max
0
⎯
10000
μF
0
⎯
20
ESR ≥ 1 mΩ
With the Tunable Loop
TM
Output Current
All
Io
Output Current Limit Inception (Hiccup Mode )
All
IO, lim
140
% Io
Adc
Output Short-Circuit Current
All
IO, s/c
1.1
Arms
VO,set = 0.59Vdc
η
72.7
%
VO,set = 1.2Vdc
η
82.3
%
(VO≤250mV) ( Hiccup Mode )
Efficiency
(Vin=9Vdc)
VIN= 12Vdc, TA=25°C
IO=IO, max , VO= VO,set
Switching Frequency
1
VO,set = 1.8Vdc
η
87.5
%
VO,set = 2.5Vdc
η
90.2
%
VO,set = 3.3Vdc
η
92.1
%
VO,set = 5.0Vdc
η
94.3
%
VO,set = 6.0Vdc
η
All
fsw
95.0
⎯
600
%
⎯
kHz
TM
External capacitors may require using the new Tunable Loop feature to ensure that the module is stable as well as
TM
getting the best transient response. See the Tunable Loop section for details.
LINEAGE POWER
3
Data Sheet
July 28, 2009
Naos Raptor 20A: Non Isolated Power Module:
4.5 – 14Vdc input; 0.59Vdc to 6Vdc Output; 20A output current
General Specifications
Parameter
Min
Calculated MTBF (VIN=12V, VO=5Vdc, IO=0.8IO, max, TA=40°C) Per
Telcordia Issue 2, Method I Case 3
Max
Unit
16,061,773
⎯
Weight
Typ
Hours
⎯
6.6 (0.23)
g (oz.)
Feature Specifications
Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature
conditions. See Feature Descriptions for additional information.
Parameter
Device
Symbol
Min
Typ
Max
Unit
On/Off Signal Interface
(VIN=VIN, min to VIN, max ; open collector or equivalent,
Signal referenced to GND)
Logic High (Enable pin open – Module ON)
Input High Current
All
IIH
0
⎯
0.5
mA
Input High Voltage
All
VIH
1.0
⎯
5.5
V
Logic Low (Module OFF)
Input Low Current
All
IIL
⎯
⎯
200
µA
Input Low Voltage
All
VIL
-0.3
⎯
0.4
V
PwGood (Power Good)
Signal Interface Open Collector/Drain
PwGood = High = Power Good
PwGood = Low = Power Not Good
Logic level low voltage, Isink = 5 mA
0
Sink Current, PwGood = low
0.35
V
10
mA
Turn-On Delay and Rise Times
(VIN=VIN, nom, IO=IO, max , VO to within ±1% of steady state)
Case 1: Enable input is enabled and then
input power is applied (delay from instant at
which VIN = VIN, min until Vo = 10% of Vo, set)
All
Tdelay
2
3
msec
Case 2: Input power is applied for at least one second
and then the Enable input is enabled (delay from instant
at which Enable is enabled until Vo = 10% of Vo, set)
All
Tdelay
2
3
msec
Output voltage Rise time (time for Vo to rise from
10% of Vo, set to 90% of Vo, set)
All
Trise
3
6
msec
0.5
% VO, set
Output voltage overshoot
o
IO = IO, max; VIN, min – VIN, max, TA = 25 C
Remote Sense Range
All
Over Temperature Protection
All
⎯
Tref
⎯
0.5
V
130
ºC
(See Thermal Considerations section)
Input Undervoltage Lockout
Turn-on Threshold
All
4.2
Vdc
Turn-off Threshold
All
4.1
Vdc
LINEAGE POWER
4
Data Sheet
July 28, 2009
Naos Raptor 20A: Non Isolated Power Module:
4.5 – 14Vdc input; 0.59Vdc to 6Vdc Output; 20A output current
Characteristic Curves
90
22
85
20
OUTPUT CURRENT, Io (A)
EFFICIENCY, η (%)
The following figures provide typical characteristics for the Naos Raptor 20A modules at 0.6Vout and 25ºC.
80
Vin = 6V
75
Vin = 9V
Vin = 4.5V
70
65
60
0
5
10
15
LINEAGE POWER
12
1m/s
(200LFM)
NC
0.5m/s
(100LFM)
10
8
35
45
55
65
75
85
AMBIENT TEMPERATURE, TA C
OUTPUT VOLTAGE
VO (V) (200mV/div)
IO (A) (5Adiv)
OUTPUT CURRENT,
TIME, t (100μs /div)
VIN (V) (5V/div)
Figure 4. Transient Response to Dynamic Load
Change from 0% to 50% to 0% with VIN=9V.
INPUT VOLTAGE
VO (V) (200mV/div)
Figure 5. Typical Start-up Using On/Off Voltage (Io =
Io,max).
1.5m/s
(300LFM)
Figure 2. Derating Output Current versus Ambient
Temperature and Airflow.
VO (V) (200mV/div)
ON/OFF VOLTAGE
VON/OFF (V) (2V/div)
OUTPUT VOLTAGE
TIME, t (1ms/div)
14
O
OUTPUT VOLTAGE
VO (V) (10mV/div)
OUTPUT VOLTAGE
TIME, t (1μs/div)
Figure 3. Typical output ripple and noise (VIN = 9V, Io =
Io,max).
2m/s
(400LFM)
16
25
20
OUTPUT CURRENT, IO (A)
Figure 1. Converter Efficiency versus Output Current.
18
TIME, t (1ms/div)
Figure 6. Typical Start-up Using Input Voltage (VIN =
9V, Io = Io,max).
5
Data Sheet
July 28, 2009
Naos Raptor 20A: Non Isolated Power Module:
4.5 – 14Vdc input; 0.59Vdc to 6Vdc Output; 20A output current
Characteristic Curves (continued)
The following figures provide typical characteristics for the Naos Raptor 20A modules at 1.2Vout and 25ºC.
95
22
20
OUTPUT CURRENT, Io (A)
EFFICIENCY, η (%)
90
Vin = 4.5V
85
Vin = 12V
80
Vin = 14V
75
70
0
5
10
15
LINEAGE POWER
0.5m/s
(100LFM)
10
NC
8
35
45
55
65
75
85
OUTPUT VOLTAGE
VO (V) (200mV/div)
IO (A) (5Adiv)
OUTPUT CURRENT,
TIME, t (20μs /div)
VIN (V) (5V/div)
Figure 10. Transient Response to Dynamic Load
Change from 0% to 50% to 0% with VIN=12V.
INPUT VOLTAGE
VON/OFF (V) (2V/div)
VO (V) (500mV/div)
Figure 11. Typical Start-up Using On/Off Voltage (Io =
Io,max).
1m/s
(200LFM)
Figure 8. Derating Output Current versus Ambient
Temperature and Airflow.
VO (V) (500mV/div)
ON/OFF VOLTAGE
OUTPUT VOLTAGE
TIME, t (1ms/div)
12
AMBIENT TEMPERATURE, TA C
OUTPUT VOLTAGE
VO (V) (10mV/div)
OUTPUT VOLTAGE
TIME, t (1μs/div)
1.5m/s
(300LFM)
14
O
OUTPUT CURRENT, IO (A)
Figure 9. Typical output ripple and noise (VIN = 12V, Io =
Io,max).
2m/s
(400LFM)
16
25
20
Figure 7. Converter Efficiency versus Output Current.
18
TIME, t (1ms/div)
Figure 12. Typical Start-up Using Input Voltage (VIN =
12V, Io = Io,max).
6
Data Sheet
July 28, 2009
Naos Raptor 20A: Non Isolated Power Module:
4.5 – 14Vdc input; 0.59Vdc to 6Vdc Output; 20A output current
Characteristic Curves (continued)
100
22
95
20
OUTPUT CURRENT, Io (A)
EFFICIENCY, η (%)
The following figures provide typical characteristics for the Naos Raptor 20A modules at 1.8Vout and at 25ºC.
90
Vin = 12V
85
Vin = 14V
Vin = 4.5V
80
75
70
0
5
10
15
LINEAGE POWER
1m/s
(200LFM)
0.5m/s
(100LFM)
10
NC
8
35
45
55
65
75
85
VO (V) (200mV/div)
IO (A) (5Adiv)
OUTPUT CURRENT,
OUTPUT VOLTAGE
Figure 14. Derating Output Current versus Ambient
Temperature and Airflow.
TIME, t (100μs /div)
VIN (V) (5V/div)
Figure 16. Transient Response to Dynamic Load
Change from 0% to 50% to 0% with VIN=12V.
INPUT VOLTAGE
VON/OFF (V) (2V/div)
VO (V) (500mV/div)
Figure 17. Typical Start-up Using On/Off Voltage (Io =
Io,max).
1.5m/s
(300LFM)
12
O
VO (V) (500mV/div)
ON/OFF VOLTAGE
OUTPUT VOLTAGE
TIME, t (1ms/div)
14
AMBIENT TEMPERATURE, TA C
OUTPUT VOLTAGE
VO (V) (10mV/div)
OUTPUT VOLTAGE
TIME, t (1μs/div)
Figure 15. Typical output ripple and noise (VIN = 12V, Io
= Io,max).
2m/s
(400LFM)
16
25
20
OUTPUT CURRENT, IO (A)
Figure 13. Converter Efficiency versus Output Current.
18
TIME, t (1ms/div)
Figure 18. Typical Start-up Using Input Voltage (VIN =
12V, Io = Io,max).
7
Data Sheet
July 28, 2009
Naos Raptor 20A: Non Isolated Power Module:
4.5 – 14Vdc input; 0.59Vdc to 6Vdc Output; 20A output current
Characteristic Curves (continued)
100
22
95
20
OUTPUT CURRENT, Io (A)
EFFICIENCY, η (%)
The following figures provide thermal derating curves for Naos Raptor 20A modules at 2.5Vout and 25ºC.
90
Vin = 12V
85
Vin = 14V
Vin = 4.5V
80
75
70
0
5
10
15
LINEAGE POWER
NC
8
35
45
55
65
75
85
VO (V) (200mV/div)
IO (A) (5Adiv)
OUTPUT CURRENT,
OUTPUT VOLTAGE
Figure 23. Typical Start-up Using On/Off Voltage (Io =
Io,max).
10
1m/s
(200LFM)
0.5m/s
(100LFM)
AMBIENT TEMPERATURE, TA C
TIME, t (100μs /div)
VIN (V) (5V/div)
Figure 22. Transient Response to Dynamic Load
Change from 0% to 50% to 0% with VIN=12V.
INPUT VOLTAGE
VON/OFF (V) (2V/div)
VO (V) (1V/div)
TIME, t (1ms/div)
1.5m/s
(300LFM)
12
Figure 20. Derating Output Current versus Ambient
Temperature and Airflow.
VO (V) (1V/div)
ON/OFF VOLTAGE
OUTPUT VOLTAGE
Figure 21. Typical output ripple and noise (VIN = 12V, Io
= Io,max).
14
O
OUTPUT VOLTAGE
VO (V) (10mV/div)
OUTPUT VOLTAGE
TIME, t (1μs/div)
2m/s
(400LFM)
16
25
20
OUTPUT CURRENT, IO (A)
Figure 19. Converter Efficiency versus Output Current.
18
TIME, t (1ms/div)
Figure 24. Typical Start-up Using Input Voltage (VIN =
12V, Io = Io,max).
8
Data Sheet
July 28, 2009
Naos Raptor 20A: Non Isolated Power Module:
4.5 – 14Vdc input; 0.59Vdc to 6Vdc Output; 20A output current
Characteristic Curves (continued)
The following figures provide thermal derating curves for Naos Raptor 20A modules at 3.3Vout and 25ºC.
100
22
OUTPUT CURRENT, Io (A)
20
EFFICIENCY, η (%)
95
90
Vin = 4.5V
Vin = 12V
Vin = 14V
85
80
0
5
10
15
LINEAGE POWER
10
1m/s
(200LFM)
0.5m/s
(100LFM)
NC
8
35
45
55
65
75
85
IO (A) (5Adiv)
OUTPUT CURRENT,
VO (V) (200mV/div)
Figure 26. Derating Output Current versus Ambient
Temperature and Airflow.
OUTPUT VOLTAGE
Figure 29. Typical Start-up Using On/Off Voltage (Io =
Io,max).
1.5m/s
(300LFM)
12
AMBIENT TEMPERATURE, TA C
TIME, t (100μs /div)
VIN (V) (5V/div)
Figure 28. Transient Response to Dynamic Load
Change from 0% to 50% to 0% with VIN=12V.
INPUT VOLTAGE
VON/OFF (V) (2V/div)
VO (V) (1V/div)
TIME, t (1ms/div)
14
O
OUTPUT VOLTAGE
ON/OFF VOLTAGE
OUTPUT VOLTAGE
Figure 27. Typical output ripple and noise (VIN = 12V, Io
= Io,max).
2m/s
(400LFM)
VO (V) (1V/div)
VO (V) (10mV/div)
OUTPUT VOLTAGE
TIME, t (1μs/div)
16
25
20
OUTPUT CURRENT, IO (A)
Figure 25. Converter Efficiency versus Output Current.
18
TIME, t (1ms/div)
Figure 30. Typical Start-up Using Input Voltage (VIN =
12V, Io = Io,max).
9
Data Sheet
July 28, 2009
Naos Raptor 20A: Non Isolated Power Module:
4.5 – 14Vdc input; 0.59Vdc to 6Vdc Output; 20A output current
Characteristic Curves (continued)
The following figures provide thermal derating curves for Naos Raptor 20A modules at 5Vout and 25ºC.
100
22
OUTPUT CURRENT, Io (A)
20
EFFICIENCY, η (%)
95
Vin = 12V
90
Vin = 14V
Vin = 6V
85
80
0
5
10
15
LINEAGE POWER
NC
8
35
45
55
65
75
85
OUTPUT VOLTAGE
VO (V) (200mV/div)
IO (A) (5Adiv)
OUTPUT CURRENT,
TIME, t (100μs /div)
VIN (V) (5V/div)
Figure 34. Transient Response to Dynamic Load
Change from 0% to 50% to 0% with VIN=12V.
INPUT VOLTAGE
VON/OFF (V) (2V/div)
VO (V) (2V/div)
Figure 35. Typical Start-up Using On/Off Voltage (Io =
Io,max).
10
1m/s
(200LFM)
0.5m/s
(100LFM)
Figure 32. Derating Output Current versus Ambient
Temperature and Airflow.
VO (V) (2V/div)
ON/OFF VOLTAGE
OUTPUT VOLTAGE
TIME, t (1ms/div)
1.5m/s
(300LFM)
12
AMBIENT TEMPERATURE, TA C
OUTPUT VOLTAGE
VO (V) (10mV/div)
OUTPUT VOLTAGE
TIME, t (1μs/div)
2m/s
(400LFM)
14
O
OUTPUT CURRENT, IO (A)
Figure 33. Typical output ripple and noise (VIN = 12V, Io
= Io,max).
16
25
20
Figure 31. Converter Efficiency versus Output Current.
18
TIME, t (1ms/div)
Figure 36. Typical Start-up Using Input Voltage (VIN =
12V, Io = Io,max).
10
Data Sheet
July 28, 2009
Naos Raptor 20A: Non Isolated Power Module:
4.5 – 14Vdc input; 0.59Vdc to 6Vdc Output; 20A output current
Characteristic Curves (continued)
The following figures provide thermal derating curves for Naos Raptor 20A modules at 6Vout and 25ºC.
100
22
OUTPUT CURRENT, Io (A)
20
EFFICIENCY, η (%)
95
Vin = 12V
90
Vin = 14V
Vin = 7.5V
85
80
0
5
10
15
LINEAGE POWER
NC
8
35
45
55
65
75
85
VO (V) (200mV/div)
IO (A) (5Adiv)
OUTPUT CURRENT,
OUTPUT VOLTAGE
Figure 38. Derating Output Current versus Ambient
Temperature and Airflow.
TIME, t (100μs /div)
VIN (V) (5V/div)
Figure 40. Transient Response to Dynamic Load
Change from 0% to 50% to 0% with VIN=12V.
INPUT VOLTAGE
Figure 41. Typical Start-up Using On/Off Voltage (Io =
Io,max).
10
1m/s
(200LFM)
0.5m/s
(100LFM)
AMBIENT TEMPERATURE, TA C
OUTPUT VOLTAGE
VON/OFF (V) (2V/div)
VO (V) (2V/div)
TIME, t (1ms/div)
1.5m/s
(300LFM)
12
VO (V) (2V/div)
VO (V) (10mV/div)
OUTPUT VOLTAGE
ON/OFF VOLTAGE
OUTPUT VOLTAGE
Figure 39. Typical output ripple and noise (VIN = 12V, Io
= Io,max).
2m/s
(400LFM)
14
O
OUTPUT CURRENT, IO (A)
TIME, t (1μs/div)
16
25
20
Figure 37. Converter Efficiency versus Output Current.
18
TIME, t (1ms/div)
Figure 42. Typical Start-up Using Input Voltage (VIN =
12V, Io = Io,max).
11
Data Sheet
July 28, 2009
Naos Raptor 20A: Non Isolated Power Module:
4.5 – 14Vdc input; 0.59Vdc to 6Vdc Output; 20A output current
Test Configurations
Design Considerations
CURRENT PROBE
The Naos Raptor 20A module should be connected to
a low-impedance source. A highly inductive source
can affect the stability of the module. An input
capacitance must be placed directly adjacent to the
input pin of the module, to minimize input ripple voltage
and ensure module stability.
To minimize input voltage ripple, low-ESR ceramic or
polymer capacitors are recommended at the input of the
module. Figure 46 shows the input ripple voltage for
various output voltages at 20A of load current with 2x22
µF or 4x22 µF ceramic capacitors and an input of 12V.
LTEST
VIN(+)
BATTERY
1μH
CIN
CS 1000μF
Electrolytic
2x100μF
Tantalum
E.S.R.<0.1Ω
@ 20°C 100kHz
COM
NOTE: Measure input reflected ripple current with a simulated
source inductance (LTEST) of 1μH. Capacitor CS offsets
possible battery impedance. Measure current as shown
above.
90
Figure 43. Input Reflected Ripple Current Test Setup.
COPPER STRIP
VO (+)
RESISTIVE
LOAD
1uF
.
10uF
Input Filtering
SCOPE
COM
GROUND PLANE
Input Ripple Voltage (mVp-p)
TO OSCILLOSCOPE
80
2x22uF
70
4x22uF
60
50
40
30
20
10
0
0.5
1
1.5
NOTE: All voltage measurements to be taken at the module
terminals, as shown above. If sockets are used then
Kelvin connections are required at the module terminals
to avoid measurement errors due to socket contact
resistance.
Figure 44. Output Ripple and Noise Test Setup.
Rdistribution
Rcontact
Rcontact
VIN(+)
2
2.5
3
3.5
4
4.5
5
Output Voltage (Vdc)
Figure 46. Input ripple voltage for various output
voltages with 2x22 µF or 4x22 µF ceramic capacitors
at the input (20A load). Input voltage is 12V.
Rdistribution
VO
Output Filtering
Rdistribution
RLOAD
VO
VIN
Rcontact
Rcontact
COM
Rdistribution
COM
NOTE: All voltage measurements to be taken at the module
terminals, as shown above. If sockets are used then
Kelvin connections are required at the module terminals
to avoid measurement errors due to socket contact
resistance.
Figure 45. Output Voltage and Efficiency Test Setup.
VO. IO
Efficiency
η =
LINEAGE POWER
VIN. IIN
x
100 %
The Naos Raptor 20A modules are designed for low
output ripple voltage and will meet the maximum output
ripple specification with no external capacitors. However,
additional output filtering may be required by the system
designer for a number of reasons. First, there may be a
need to further reduce the output ripple and noise of the
module. Second, the dynamic response characteristics
may need to be customized to a particular load step
change.
To reduce the output ripple and improve the dynamic
response to a step load change, additional capacitance at
the output can be used. Low ESR ceramic and polymer
are recommended to improve the dynamic response of
the module. For stable operation of the module, limit the
capacitance to less than the maximum output
capacitance as specified in the electrical specification
table. Optimal performance of the module can be
achieved by using the Tunable LoopTM feature described
later in this data sheet.
12
Data Sheet
July 28, 2009
Naos Raptor 20A: Non Isolated Power Module:
4.5 – 14Vdc input; 0.59Vdc to 6Vdc Output; 20A output current
Safety Considerations
Feature Descriptions
For safety agency approval the power module must be
installed in compliance with the spacing and separation
requirements of the end-use safety agency standards,
i.e., UL 60950-1, CSA C22.2 No. 60950-1-03, and VDE
0850:2001-12 (EN60950-1) Licensed.
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.
An input fuse for the module is recommended. Due to the
wide input voltage and output voltage ranges of the
module, different fuse ratings are recommended as
shown in Table 1. These are suggested “maximum” fuse
ratings. However, for optimum circuit protection, the fuse
value should not be any larger than required in the end
application. As an option to using a fuse, no fuse is
required, if the module is
1. powered by a power source with current limit
protection set point less than the protection
device value listed in Table 1, and
2. the module is evaluated in the end-use
equipment.
Table 1.
Enable (Remote On/Off)
Input
Output Voltage (VDC)
Voltage
0.59 to 1.3 1.31 to 2.7 2.71 to 5.0 5.1 to 6
(VDC)
10.1 to 14
5A
10A
15A
20A
6.51 to 10
6.3A
15A
25A
30A
4.5 to 6.5
10A
20A
30A
NA
The Naos Raptor 20A modules feature an Enable pin with
positive logic for remote On/Off operation. If not using the
Enable pin, leave the pin open (the module will be ON,
except for the -49 option modules where leaving the pin
open will cause the module to remain OFF). The Enable
signal (VEnable) is referenced to ground.
During a Logic High on the Enable pin, the module
remains ON. During Logic-Low, the module is turned
OFF.
MODULE
R1
7.5K
ON/OFF
ENABLE
R2
100k
C1
1000p
GND
Figure 47. Remote On/Off Implementation.
Components R2 and C1 are only present in the -49Z
option module.
Overcurrent Protection
To provide protection in a fault (output overload)
condition, the unit is equipped with internal
current-limiting circuitry and can endure current limiting
continuously. At the point of current-limit inception, the
unit enters hiccup mode. The unit operates normally once
the output current is brought back into its specified range.
The typical average output current during hiccup is 10%
of Io,max.
Overtemperature Protection
To provide protection in a fault condition, these modules
are equipped with a thermal shutdown circuit. The unit
will shut down if the overtemperature threshold of 130ºC
is exceeded at the thermal reference point Tref. The
thermal shutdown is not intended as a guarantee that the
unit will survive temperatures beyond its rating. Once the
unit goes into thermal shutdown it will then wait to cool
before attempting to restart.
Input Undervoltage Lockout
At input voltages below the input undervoltage lockout
limit, module operation is disabled. The module will begin
to operate at an input voltage above the undervoltage
lockout turn-on threshold.
LINEAGE POWER
13
Data Sheet
July 28, 2009
Naos Raptor 20A: Non Isolated Power Module:
4.5 – 14Vdc input; 0.59Vdc to 6Vdc Output; 20A output current
Table 2 provides Rtrim values required for some common
output voltages.
Feature Descriptions (continued)
Power Good
Table 2
The Naos Raptor 20A modules provide a Power Good
Status signal that indicates whether or not the power
module is functioning properly.
PwGood is a power good signal implemented with an
open-collector output to indicate that the output voltage is
within the regulation limits of the power module. The
PwGood signal will be de-asserted to a low state If any
condition such as over-temperature, over-current, or
over-voltage occurs which would result in the output
voltage going out of range.
Output Voltage Programming
The output voltage of the Naos Raptor 20A module can
be programmed to any voltage from 0.59Vdc to 6Vdc by
connecting a resistor between the Trim+ and Trim– pins
of the module. Certain restrictions apply on the output
voltage set point depending on the input voltage. These
are shown in the Output Voltage vs. Input Voltage Set
Point Area plot in Fig. 48. The Upper Limit curve shows
that for output voltages of 0.9V and lower, the input
voltage must be lower than the maximum of 14V. The
Lower Limit curve shows that for output voltages of 3.8V
and higher, the input voltage needs to be larger than the
minimum of 4.5V.
VO, set (V)
Rtrim (KΩ)
0.59
1.0
1.2
1.5
1.8
2.5
3.3
5.0
6.0
Open
2.89
1.941
1.3
0.978
0.619
0.436
0.268
0.219
By using a ±0.5% tolerance trim resistor with a TC of
±25ppm, a set point tolerance of ±1.5% can be achieved
as specified in the electrical specification. The POL
Programming Tool available at www.lineagepower.com
under the Design Tools section, helps determine the
required trim resistor needed for a specific output voltage.
Note: Vin ≥ 130% of Vout at the module output pin.
V IN(+)
V O(+)
ON/OFF
TRIM+
Vout
16
Input Voltage (v)
14
12
10
LOAD
R trim
8
GND
6
TRIM−
4
2
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
5.5
6
Figure 49. Circuit configuration for programming
output voltage using an external resistor.
Output Voltage (V)
Figure 48. Output Voltage vs. Input Voltage Set Point
Area plot showing limits where the output voltage
can be set for different input voltages.
Without an external resistor between Trim+ and Trim–
pins, the output of the module will be 0.59Vdc. To
calculate the value of the trim resistor, Rtrim for a desired
output voltage, use the following equation:
Rtrim =
1.182
kΩ
(Vo − 0.591)
Rtrim is the external resistor in kΩ
Vo is the desired output voltage
LINEAGE POWER
Voltage Margining
Output voltage margining can be implemented in the
Naos Raptor 20A modules by connecting a resistor,
Rmargin-up, from the Trim+ pin to the Trim– pin for
margining-up the output voltage and by connecting a
resistor, Rmargin-down, from the Trim+ pin to the output pin
for margining-down. Figure 50 shows the circuit
configuration for output voltage margining. The POL
Programming Tool, available at www.lineagepower.com
under the Design Tools section, also calculates the
values of Rmargin-up and Rmargin-down for a specific output
voltage and % margin. Please consult your local Lineage
Power technical representative for additional details.
14
Data Sheet
July 28, 2009
Naos Raptor 20A: Non Isolated Power Module:
4.5 – 14Vdc input; 0.59Vdc to 6Vdc Output; 20A output current
Vo
Rmargin-down
MODULE
Q2
Trim+
for an input voltage of 12V. The value of RTUNE should
never be lower than the values shown in Tables 3 and 4.
Please contact your Lineage Power technical
representative to obtain more details of this feature as
well as for guidelines on how to select the right value of
external R-C to tune the module for best transient
performance and stable operation for other output
capacitance values.
Rmargin-up
VOUT
SENSE+
Rtrim
RTune
Q1
MODULE
Trim-
CTune
TRIM+
Figure 50. Circuit Configuration for margining Output
voltage.
RTrim
TRIM-
Monotonic Start-up and Shutdown
The Naos Raptor 20A modules have monotonic start-up
and shutdown behavior for any combination of rated input
voltage, output current and operating temperature range.
TM
Tunable Loop
The Naos Raptor 20A modules have a new feature that
optimizes transient response of the module called
TM
Tunable Loop . External capacitors are usually added
to improve output voltage transient response due to load
current changes. Sensitive loads may also require
additional output capacitance to reduce output ripple and
noise. Adding external capacitance however affects the
voltage control loop of the module, typically causing the
loop to slow down with sluggish response. Larger values
of external capacitance could also cause the module to
become unstable.
To use the additional external capacitors in an optimal
TM
manner, the Tunable Loop feature allows the loop to be
tuned externally by connecting a series R-C between the
SENSE and TRIM pins of the module, as shown in Fig.
51. This R-C allows the user to externally adjust the
voltage loop feedback compensation of the module to
match the filter network connected to the output of the
module.
Figure. 51. Circuit diagram showing connection of
RTUME and CTUNE to tune the control loop of the
module.
Table 3. Recommended values of RTUNE and CTUNE to
obtain transient deviation of 2% of Vout for a 10A
step load with Vin=12V.
Vout
5V
3.3V
2.5V
1.8V
1.2V
0.69V
4x47μF 2x47μF 6x47μF
+
+
+
330μF
7x330μF 23x330μF
Cext
Polymer 330μF 2x330μF 3x330μF Polymer Polymer
Polymer Polymer Polymer
RTUNE
75
51
51
51
51
31
CTUNE
100nF
150nF
220nF
330nF
330nF
330nF
ΔV
94mV
66mV
50mV
36mV
24mV
12mV
Table 4. General recommended values of of RTUNE and
CTUNE for Vin=12V and various external ceramic
capacitor combinations.
Cext 2x47μF 4x47μF 6x47μF 10x47μF 20x47μF 30x47μF
RTUNE
75
75
75
51
51
51
CTUNE
15nF
27nF
33nF
47nF
68nF
82nF
Recommended values of RTUNE and CTUNE are given in
Tables 3 and 4. Table 3 lists recommended values of
RTUNE and CTUNE in order to meet 2% output voltage
deviation limits for some common output voltages in the
presence of a 5A to 10A step change (50% of full load),
with an input voltage of 12V. Table 4 shows the
recommended values of RTUNE and CTUNE for different
values of ceramic output capacitors up to 1000uF, again
LINEAGE POWER
15
Data Sheet
July 28, 2009
Naos Raptor 20A: Non Isolated Power Module:
4.5 – 14Vdc input; 0.59Vdc to 6Vdc Output; 20A output current
Thermal Considerations
Power modules operate in a variety of thermal
environments; however sufficient cooling should always
be provided to help ensure reliable operation.
Considerations include ambient temperature, airflow,
module power dissipation, and the need for increased
reliability. A reduction in the operating temperature of the
module will result in an increase in reliability. The thermal
data presented here is based on physical measurements
taken in a wind tunnel. The test set-up is shown in Figure
52. The preferred airflow direction for the module is in
Figure 53.
Figure 53. Temperature measurement location Tref.
Wind Tunnel
50.8
[2.00]
PWBs
Heat Transfer via Convection
Power Module
76.2
[3.0]
7.24
[0.285]
Probe Location
for measuring
airflow and
ambient
temperature
Air
Flow
Figure 52. Thermal Test Set-up.
The thermal reference point, Tref used in the
specifications is shown in Figure 53. For reliable
o
operation this temperatures should not exceed 122 C.
The output power of the module should not exceed the
rated power of the module (Vo,set x Io,max).
Please refer to the Application Note “Thermal
Characterization Process For Open-Frame BoardMounted Power Modules” for a detailed discussion of
thermal aspects including maximum device temperatures.
LINEAGE POWER
Increased airflow over the module enhances the heat
transfer via convection. Thermal derating curves showing
the maximum output current that can be delivered at
different local ambient temperatures (TA) for airflow
conditions ranging from natural convection and up to
2m/s (400 ft./min) are shown in the Characteristics
Curves section.
Post solder Cleaning and Drying
Considerations
Post solder cleaning is usually the final circuit-board
assembly process prior to electrical board testing. The
result of inadequate cleaning and drying can affect both
the reliability of a power module and the testability of the
finished circuit-board assembly. For guidance on
appropriate soldering, cleaning and drying procedures,
refer to Board Mounted Power Modules: Soldering and
Cleaning Application Note.
Through-Hole Lead-Free Soldering
Information
These RoHS-compliant through-hole products use the
SAC (Sn/Ag/Cu) Pb-free solder and RoHS-compliant
components. They are designed to be processed
through single or dual wave soldering machines. The
pins have an RoHS-compliant finish that is compatible
with both Pb and Pb-free wave soldering processes. A
maximum preheat rate of 3°C/s is suggested. The wave
preheat process should be such that the temperature of
the power module board is kept below 210°C. For Pb
solder, the recommended pot temperature is 260°C, while
the Pb-free solder pot is 270°C max. Not all RoHScompliant through-hole products can be processed with
paste-through-hole Pb or Pb-free reflow process. If
additional information is needed, please consult with your
Lineage Power technical representative for more details.
16
Data Sheet
July 28, 2009
Naos Raptor 20A: Non Isolated Power Module:
4.5 – 14Vdc input; 0.59Vdc to 6Vdc Output; 20A output current
Mechanical Outline
Dimensions are in inches and (millimeters).
Tolerances: x.x mm ± 0.5 mm (x.xx in. ± 0.02 in.) [unless otherwise indicated]
x.xx mm ± 0.25 mm (x.xxx in ± 0.010 in.)
Front View
L = 3.30 ± 0.5 [ 0.13 ± 0.02]
Side View
Pin out
LINEAGE POWER
Pin
Function
Pin
1
Vout
6
Function
Vin
2
Trim +
7
Sense +
3
GND
8
Sense -
4
PwGood
9
TRIM -
5
Enable
10
GND
17
Data Sheet
July 28, 2009
Naos Raptor 20A: Non Isolated Power Module:
4.5 – 14Vdc input; 0.59Vdc to 6Vdc Output; 20A output current
Recommended Pad Layout
Dimensions are in millimeters and (inches).
Tolerances: x.x mm ± 0.2 mm (x.xx in. ± 0.02 in.) [unless otherwise indicated]
x.xx mm ± 0.12 mm (x.xxx in ± 0.005 in.)
LINEAGE POWER
Pin
Function
Pin
1
Vout
6
Function
Vin
2
Trim +
7
Sense +
3
GND
8
Sense -
4
PwGood
9
TRIM -
5
Enable
10
GND
18
Data Sheet
July 28, 2009
Naos Raptor 20A: Non Isolated Power Module:
4.5 – 14Vdc input; 0.59Vdc to 6Vdc Output; 20A output current
Ordering Information
Please contact your Lineage Power Sales Representative for pricing, availability and optional features.
Table 5. Device Codes
Device Code
Input
Voltage Range
Output
Voltage
Output
Current
On/Off
Logic
Connector
Type
Comcode
NSR020A0X43Z
4.5 – 13.8Vdc
0.59 – 6Vdc
20 A
Positive
SIP
CC109130911
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Tel: +65 6416 4283
World Wide Headquarters
Lineage Power Corporation
3000 Skyline Drive, Mesquite, TX 75149, USA
+1-800-526-7819
(Outside U.S.A.: +1-972-284-2626)
www.lineagepower.com
e-mail: [email protected]
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Tel: +49 89 6089 286
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.
© 2008 Lineage Power Corporation, (Mesquite, Texas) All International Rights Reserved.
LINEAGE POWER
19
Document No: DS06-127 ver. 1.07
PDF name: NSR020A0X_ds.pdf