GE Industrial Solutions 12A Digital PicoDLynx User Manual
A
K
A
A
GE
Data Sheet
12A Digital PicoDLynxTM: Non-Isolated DC-DC Power Modules
3Vdc –14.4Vdc input; 0.45Vdc to 5.5Vdc output; 12A Output Current
RoHS Compliant
Applications
Distributed power architectures
Intermediate bus voltage applications
Telecommunications equipment
Servers and storage applications
Networking equipment
Industrial equipment
SIG_GND
GND
VOUT
VS+
TRIM
DDR0
DDR1
VS-
RADDR1
GND
VIN
PGOOD
MODULE
SEQ
CL
Cin
DAT
SMBALRT#
ON/OFF
SYNC
RTUNE
CTUNE
RTrim
RADDR0
Vout+Vin+
Co
Features
Compliant to RoHS II EU “Directive 2011/65/EU”
Compatible in a Pb-free or SnPb reflow environment
Compliant to IPC-9592 (September 2008), Category 2,
Class II
DOSA based
Wide Input voltage range (3Vdc-14.4Vdc)
Output voltage programmable from 0.6Vdc to 5.5Vdc
via external resistor. Digitally adjustable down to
0.45Vdc
Digital interface through the PMBus
Tunable Loop
response
Flexible output voltage sequencing EZ-SEQUENCE
Power Good signal
Fixed switching frequency with capability of external
synchronization
Output overcurrent protection (non-latching)
Overtemperature protection
Remote On/Off
Ability to sink and source current
Cost efficient open frame design
Small size: 12.2 mm x 12.2 mm x 8.5 mm
(0.48 in x 0.48 in x 0.335 in)
Wide operating temperature range [-40°C to
105°C(Ruggedized: -D), 85°C(Regular)]
UL* 60950-1Recognized, CSA
Certified, and VDE
ISO** 9001 and ISO 14001 certified manufacturing
facilities
TM
to optimize dynamic output voltage
†
‡
0805:2001-12 (EN60950-1) Licensed
C22.2 No. 60950-1-03
TM #
protocol
Description
The 12A Digital PicoDLynxTM power modules are non-isolated dc-dc converters that can deliver up to 12A of output current. These
modules operate over a wide range of input voltage (V
0.45Vdc to 5.5Vdc, programmable via an external resistor and PMBus control. Features include a digital interface using the PMBus
protocol, remote On/Off, adjustable output voltage, over current and over temperature protection. The PMBus interface supports a
range of commands to both control and monitor the module. The module also includes the Tunable Loop
user to optimize the dynamic response of the converter to match the load with reduced amount of output capacitance leading to
savings on cost and PWB area.
*
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
#
The PMBus name and logo are registered trademarks of the System Management Interface Forum (SMIF)
November 19, 2013
= 3Vdc-14.4Vdc) and provide a precisely regulated output voltage from
IN
TM
feature that allows the
©2013 General Electric Corporation.
All rights reserved.
GE
Data Sheet
12A Digital PicoDLynxTM: Non-Isolated DC-DC Power Modules
3Vdc –14.4Vdc input; 0.45Vdc to 5.5Vdc output; 12A 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
Input Voltage All V
Continuous
IN
SEQ, SYNC, VS+ All 7 V
CLK, DATA, SMBALERT# All 3.6 V
Operating Ambient Temperature All T
(see Thermal Considerations section)
Storage Temperature All T
A
stg
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 3
Maximum Input Current All I
(VIN=3V to 14V, IO=I
Input No Load Current
= 12Vdc, IO = 0, module enabled)
(V
IN
Input Stand-by Current
= 12Vdc, module disabled)
(V
IN
)
O, max
= 0.6 Vdc I
V
O,set
V
= 5Vdc I
O,set
All I
Inrush Transient All I2t 1 A2s
Input Reflected Ripple Current, peak-to-peak
(5Hz to 20MHz, 1H source impedance; V
= I
14V
; See Test Configurations)
, IO
Omax
=0 to
IN
All 400 mAp-p
Input Ripple Rejection (120Hz) All -55 dB
IN,max
IN,No load
85 mA
IN,No load
6.5 mA
IN,stand-by
-0.3 15 V
-40 85 °C
-55 125 °C
⎯
14.4 Vdc
9 Adc
52 mA
November 19, 2013
©2013 General Electric Corporation.
All rights reserved.
Page 2
p
GE
Data Sheet
12A Digital PicoDLynxTM: Non-Isolated DC-DC Power Modules
3Vdc –14.4Vdc input; 0.45Vdc to 5.5Vdc output; 12A Output Current
Electrical Specifications (continued)
Parameter Device Symbol Min Typ Max Unit
Output Voltage Set-point (with 0.1% tolerance for external
resistor used to set output voltage)
Output Voltage (Over all operating input voltage, resistive
load, and temperature conditions until end of life)
All V
All V
O, set
O, set
Adjustment Range (selected by an external resistor)
(Some output voltages may not be possible depending on the
All V
O
input voltage – see Feature Descriptions Section)
PMBus Adjustable Output Voltage Range All VO,adj -25 0 +25 %V
PMBus Output Voltage Adjustment Step Size All 0.4 %V
Remote Sense Range All 0.5 Vdc
Output Regulation (for VO 2.5Vdc)
Line (VIN=V
Load (IO=I
IN, min
O, min
to V
) All
IN, max
to I
) All
O, max
Output Regulation (for VO < 2.5Vdc)
Line (VIN=V
Load (IO=I
Temperature (T
IN, min
O, min
to V
) All
IN, max
to I
) All
O, max
to T
ref=TA, min
) All
A, max
Output Ripple and Noise on nominal output
(VIN=V
ca
IN, nom
acitors)
and IO=I
O, min
to I
Co = 0.1F // 22 F ceramic
O, max
Peak-to-Peak (5Hz to 20MHz bandwidth) All
RMS (5Hz to 20MHz bandwidth) All 20 38 mV
External Capacitance1
Without the Tunable Loop
TM
ESR 1 m All C
With the Tunable Loop
TM
ESR 0.15 m All C
ESR 10 m All C
Output Current (in either sink or source mode) All I
Output Current Limit Inception (Hiccup Mode)
(current limit does not operate in sink mode)
All I
Output Short-Circuit Current All I
(VO250mV) ( Hiccup Mode )
Efficiency V
VIN= 12Vdc, TA=25°C V
IO=I
O, max , VO
= V
V
O,set
V
V
V
= 0.6Vdc 76.4 %
O,set
= 1.2Vdc 86.0 %
O, set
= 1.8Vdc 89.9 %
O,set
= 2.5Vdc 92.2 %
O,set
= 3.3Vdc 93.6 %
O,set
= 5.0Vdc 95.4 %
O,set
Switching Frequency All f
1
External capacitors may require using the new Tunable LoopTM feature to ensure that the module is stable as well as getting the best
transient response. See the Tunable Loop
TM
section for details.
O, max
O, max
O, max
o
O, lim
O, s/c
sw
-1.0 +1.0 % V
-3.0
⎯
+3.0 % V
0.6 5.5 Vdc
+0.4 % V
⎯
⎯
⎯
⎯
⎯
50 100 mV
⎯
10 mV
5 mV
10 mV
0.4 % V
22
22
22
⎯
⎯
⎯
47 F
1000 F
5000 F
0 12 Adc
130 % I
0.92 Arms
600
⎯
⎯
o,max
kHz
O, set
O, set
O,set
O,set
O, set
O, set
pk-pk
rms
November 19, 2013
©2013 General Electric Corporation.
All rights reserved.
Page 3
GE
Data Sheet
12A Digital PicoDLynxTM: Non-Isolated DC-DC Power Modules
3Vdc –14.4Vdc input; 0.45Vdc to 5.5Vdc output; 12A Output Current
Electrical Specifications (continued)
Parameter Device Symbol Min Typ Max Unit
Frequency Synchronization All
Synchronization Frequency Range All 510 720 kHz
High-Level Input Voltage All V
Low-Level Input Voltage All V
Input Current, SYNC All I
Minimum Pulse Width, SYNC All t
Maximum SYNC rise time All t
IH
IL
SYNC
SYNC
SYNC_SH
General Specifications
Parameter Device Min Typ Max Unit
Calculated MTBF (IO=0.8I
Case 3
, TA=40°C) Telecordia Issue 2 Method 1
O, max
All 21,774,843 Hours
Weight
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=V
Signal referenced to GND)
Device code with suffix “4” – Positive Logic (See Ordering
Information)
Logic High (Module ON)
Input High Current All IIH
Input High Voltage All VIH
Logic Low (Module OFF)
Input Low Current All IIL
Input Low Voltage All VIL
Device Code with no suffix – Negative Logic (See Ordering
Information)
(On/OFF pin is open collector/drain logic input with
external pull-up resistor; signal referenced to GND)
Logic High (Module OFF)
Input High Current All IIH — — 1 mA
Input High Voltage All VIH 2.0 — V
Logic Low (Module ON)
Input low Current All IIL — — 10 A
Input Low Voltage All VIL -0.2 — 0.6 Vdc
IN, min
to V
; open collector or equivalent,
IN, max
2.0 V
0.4 V
100 nA
100 ns
100 ns
2.23 (0.079)
⎯
2.0
⎯
⎯
1 mA
V
V
IN,max
⎯ ⎯
-0.2
⎯
1 mA
0.6 V
⎯
g (oz.)
Vdc
IN, max
November 19, 2013
©2013 General Electric Corporation.
All rights reserved.
Page 4
GE
Data Sheet
12A Digital PicoDLynxTM: Non-Isolated DC-DC Power Modules
3Vdc –14.4Vdc input; 0.45Vdc to 5.5Vdc output; 12A Output Current
Feature Specifications (cont.)
Parameter Device Symbol Min Typ Max Units
Turn-On Delay and Rise Times
(VIN=V
Case 1: On/Off input is enabled and then input power is
applied (delay from instant at which V
10% of V
Case 2: Input power is applied for at least one second and
then the On/Off input is enabled (delay from instant at
which Von/Off is enabled until V
Output voltage Rise time (time for Vo to rise from
10% of Vo, set to 90% of Vo, set)
Output voltage overshoot (TA = 25oC
V
With or without maximum external capacitance
Over Temperature Protection
(See Thermal Considerations section)
PMBus Over Temperature Warning Threshold * All T
Tracking Accuracy (Power-Up: 2V/ms) All VSEQ –Vo 100 mV
(Power-Down: 2V/ms) All VSEQ –Vo 100 mV
(V
Input Undervoltage Lockout
, IO=I
IN, nom
o, set)
= V
to V
IN
IN, min
to V
IN, min
IN, max
Turn-on Threshold All
Turn-off Threshold All
Hysteresis All
to within ±1% of steady state)
O, max , VO
All Tdelay — 1.1 — msec
All Tdelay — 700 — sec
All Trise
— 3.1 — msec
3.0 % V
All T
ref
WARN
120 °C
130 °C
2.475 3.025 Vdc
2.25 2.75 Vdc
0.25 Vdc
IN, max,IO
; I
O, min
= V
until Vo =
IN
IN, min
o = 10% of Vo, set)
= I
to I
)
O, max
VSEQ < Vo)
to I
O, min
O, max
O, set
PMBus Adjustable Input Under Voltage Lockout Thresholds All
Resolution of Adjustable Input Under Voltage Threshold All
PGOOD (Power Good)
Signal Interface Open Drain, V
supply
≤ 5VDC
Overvoltage threshold for PGOOD ON All
Overvoltage threshold for PGOOD OFF All
Undervoltage threshold for PGOOD ON All
Undervoltage threshold for PGOOD OFF All
Pulldown resistance of PGOOD pin All
Sink current capability into PGOOD pin All
2.5 14 Vdc
500 mV
108 %V
110 %V
92 %V
90 %V
50
5 mA
* Over temperature Warning – Warning may not activate before alarm and unit may shutdown before warning
November 19, 2013
©2013 General Electric Corporation.
All rights reserved.
O, set
O, set
O, set
O, set
Ω
Page 5
GE
Data Sheet
12A Digital PicoDLynxTM: Non-Isolated DC-DC Power Modules
3Vdc –14.4Vdc input; 0.45Vdc to 5.5Vdc output; 12A Output Current
Digital Interface Specifications
Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature conditions. See
Feature Descriptions for additional information.
Parameter Conditions Symbol Min Typ Max Unit
PMBus Signal Interface Characteristics
Input High Voltage (CLK, DATA) VIH 2.1 3.6 V
Input Low Voltage (CLK, DATA) VIL 0.8 V
Input high level current (CLK, DATA) IIH -10 10 A
Input low level current (CLK, DATA) IIL -10 10 A
Output Low Voltage (CLK, DATA, SMBALERT#) I
Output high level open drain leakage current (DATA,
SMBALERT#)
Pin capacitance CO 0.7 pF
PMBus Operating frequency range Slave Mode FPMB 10 400 kHz
Data hold time
Data setup time
Measurement System Characteristics
Read delay time
Output current measurement range
Output current measurement resolution
Output current measurement gain accuracy at 25°C
(with I
Output current measurement offset
V
OUT
V
OUT
V
OUT
V
OUT
VIN measurement range
VIN measurement resolution
VIN measurement accuracy
VIN measurement offset
)
OUT, CORR
measurement range
measurement resolution
measurement accuracy
measurement offset
=2mA VOL 0.4 V
OUT
V
=3.6V I
OUT
Receive Mode
Transmit Mode
tSU:DAT
OH
tHD:DAT
tDLY 153 192 231 s
I
RNG
RES
I
I
ACC
I
OFST
V
OUT(rng)
V
OUT(res)
V
OUT(ACC)
V
OUT(ofst)
V
IN(rng)
V
IN(res)
V
IN(ACC)
V
IN(ofst)
0 10 A
0
300
250 ns
0 18 A
62.5 mA
±5 %
0.1 A
0 5.5 V
15.625 mV
-15 15 %
-3 3 %
3 14.4 V
32.5 mV
-15 15 %
-5.5 1.4 LSB
ns
November 19, 2013
©2013 General Electric Corporation.
All rights reserved.
Page 6
OUTPUT
VOLTAGE
ON/OFF
VOLTAGE
GE
Data Sheet
12A Digital PicoDLynxTM: Non-Isolated DC-DC Power Modules
3Vdc –14.4Vdc input; 0.45Vdc to 5.5Vdc output; 12A Output Current
Characteristic Curves
The following figures provide typical characteristics for the 12A Digital PicoDLynxTM at 0.6Vo and 25oC.
85
80
75
70
65
60
EFFICIENCY, η (%)
55
50
024681012
Vin=3V
Vin=12V
OUTPUT CURRENT, I
Vin=14V
(A) AMBIENT TEMPERATURE, TA OC
O
Figure 1. Converter Efficiency versus Output Current.
12
10
8
6
Standard Par t
Ruggediz ed (D)
4
2
OUTPUT CURRENT, Io (A)
(85°C)
Part (105° C)
NC
1m/s
(
200LFM
0.5m/s
(100LFM)
)
0
55 65 75 85 95 105
Figure 2. Derating Output Current versus Ambient
Temperature and Airflow.
1.5m/s
(300LFM)
2m/s
2m/s
(400LFM)
(400LFM)
(V) (20mV/div)
O
V
OUTPUT VOLTAGE
TIME, t (1μs/div) TIME, t (20μs /div)
Figure 3. Typical output ripple and noise (CO=22F ceramic,
IN = 12V, Io = Io,max, ).
V
(V) (5V/div)
ON/OFF
(V) (200mV/div) V
O
(V) (5mV/div)
O
(A) (10Adiv) V
O
I
OUTPUT CURRENT, OUTPUT VOLTAGE
Figure 4. Transient Response to Dynamic Load Change from
50% to 100% at 12Vin, Cout= 3x47uF+6x330uF, CTune=47nF,
RTune=180ohms
(V) (5V/div)
IN
(V) (200mV/div) V
O
V
Figure 5. Typical Start-up Using On/Off Voltage (Io = Io,max).
November 19, 2013
TIME, t (2ms/div) TIME, t (2ms/div)
OUTPUT VOLTAGE INPUT VOLTAGE
V
Figure 6. Typical Start-up Using Input Voltage (V
o,max).
I
©2013 General Electric Corporation.
All rights reserved.
IN = 12V, Io =
Page 7
GE
Data Sheet
12A Digital PicoDLynxTM: Non-Isolated DC-DC Power Modules
3Vdc –14.4Vdc input; 0.45Vdc to 5.5Vdc output; 12A Output Current
Characteristic Curves
The following figures provide typical characteristics for the 12A Digital PicoDLynxTM at 1.2Vo and 25oC.
95
90
85
Vin=3V
80
75
70
65
60
EFFICIENCY, η (%)
55
50
024681012
OUTPUT CURRENT, I
Vin=12V
Vin=14V
(A) AMBIENT TEMPERATURE, TA OC
O
Figure 7. Converter Efficiency versus Output Current.
12
10
8
6
4
2
OUTPUT CURRENT, Io (A)
NC
Standard
Part (85 C)
Ruggedized (D)
Part (105°C)
0.5m/s
(100LFM)
1m/s
(200LFM)
0
55 65 75 85 95 105
Figure 8. Derating Output Current versus Ambient
Temperature and Airflow.
1.5m/s
(300LFM)
2m/s
(400LFM)
(V) (20mV/div)
O
V
OUTPUT VOLTAGE
TIME, t (1μs/div) TIME, t (20μs /div)
Figure 9. Typical output ripple and noise (CO=22F ceramic,
IN = 12V, Io = Io,max, ).
V
(V) (5V/div)
ON/OFF
(V) (500mV/div) V
O
(V) (10mV/div)
O
(A) (10Adiv) V
O
I
OUTPUT CURRENT OUTPUT VOLTAGE
Figure 10. Transient Response to Dynamic Load Change from
50% to 100% at 12Vin, Cout= 1x47uF+3x330uF, CTune=10nF
& RTune=220ohms
(V) (5V/div)
IN
(V) (500mV/div) V
O
OUTPUT VOLTAGE ON/OFF VOLTAGE
V
TIME, t (2ms/div) TIME, t (2ms/div)
Figure 11. Typical Start-up Using On/Off Voltage (Io = Io,max).
November 19, 2013
©2013 General Electric Corporation.
All rights reserved.
OUTPUT VOLTAGE INPUT VOLTAGE
V
Figure 12. Typical Start-up Using Input Voltage (V
o,max).
I
IN = 12V, Io =
Page 8
/
GE
Data Sheet
12A Digital PicoDLynxTM: Non-Isolated DC-DC Power Modules
3Vdc –14.4Vdc input; 0.45Vdc to 5.5Vdc output; 12A Output Current
Characteristic Curves
The following figures provide typical characteristics for the 12A Digital PicoDLynxTM at 1.8Vo and 25oC.
95
90
Vin=3.5V
85
Vin=14V
80
75
EFFICIENCY, η (%)
70
024681012
OUTPUT CURRENT, I
Vin=12V
(A) AMBIENT TEMPERATURE, TA OC
O
Figure 13. Converter Efficiency versus Output Current.
12
10
8
6
4
2
OUTPUT CURRENT, Io (A)
NC
Standard Part
(85°C)
Ruggedized (D)
Part (105° C)
0.5m/s
(100LFM)
(200LFM)
1m/s
0
55 65 75 85 95 105
Figure 14. Derating Output Current versus Ambient
Temperature and Airflow.
1.5m/s
(300LFM)
2m/s
(400LFM)
(V) (20mV/div)
O
V
OUTPUT VOLTAGE
TIME, t (1μs/div) TIME, t (20μs /div)
Figure 15. Typical output ripple and noise (CO=22F ceramic,
IN = 12V, Io = Io,max, ).
V
(V) (5V/div)
OFF VOLTAGE
ON/OFF
(V) (500mV/div) V
O
(V) (20mV/div)
O
(A) (10Adiv) V
O
I
OUTPUT CURRENT, OUTPUT VOLTAGE
Figure 16. Transient Response to Dynamic Load Change from
50% to 100% at 12Vin, Cout=
1x47uF+2x330uF,CTune=5600pF & RTune=270ohms
(V) (5V/div)
IN
(V) (500mV/div) V
O
V
OUTPUT VOLTAGE ON
Figure 17. Typical Start-up Using On/Off Voltage (Io = Io,max).
TIME, t (2ms/div) TIME, t (2ms/div)
OUTPUT VOLTAGE INPUT VOLTAGE
V
Figure 18. Typical Start-up Using Input Voltage (V
o,max).
I
IN = 12V, Io =
November 19, 2013
©2013 General Electric Corporation.
All rights reserved.
Page 9
OUTPUT
VOLTAGE
ON/OFF
VOLTAGE
GE
Data Sheet
12A Digital PicoDLynxTM: Non-Isolated DC-DC Power Modules
3Vdc –14.4Vdc input; 0.45Vdc to 5.5Vdc output; 12A Output Current
Characteristic Curves
The following figures provide typical characteristics for the 12A Digital PicoDLynxTM at 2.5Vo and 25oC.
100
95
90
Vin=4.5V
EFFICIENCY, η (%)
85
80
75
70
024681012
Vin=14V
OUTPUT CURRENT, I
Vin=12V
(A) AMBIENT TEMPERATURE, TA OC
O
Figure 19. Converter Efficiency versus Output Current.
12
10
8
6
4
2
OUTPUT CURRENT, Io (A)
NC
Standard
Part (8 5°C)
Ruggedized (D)
Part (105°C)
0.5m/s
(100LFM)
0
55 65 75 85 95 105
Figure 20. Derating Output Current versus Ambient
Temperature and Airflow.
1m/s
(200LFM)
1.5m/s
(300LFM)
(400LFM
2m/s
(V) (20mV/div)
O
V
OUTPUT VOLTAGE
TIME, t (1μs/div) TIME, t (20μs /div)
Figure 21. Typical output ripple and noise (CO=22F ceramic,
IN = 12V, Io = Io,max, ).
V
(V) (5V/div)
ON/OFF
(V) (1V/div) V
O
(V) (20mV/div)
O
(A) (10Adiv) V
O
I
OUTPUT CURRENT, OUTPUT VOLTAGE
Figure 22. Transient Response to Dynamic Load Change from
50% to 100% at 12Vin, Cout=
1x47uF+1x330uF,CTune=3300pF & RTune=270ohms
(V) (5V/div)
IN
(V) (1V/div) V
O
V
Figure 23. Typical Start-up Using On/Off Voltage (Io = Io,max).
November 19, 2013
TIME, t (2ms/div) TIME, t (2ms/div)
OUTPUT VOLTAGE INPUT VOLTAGE
V
Figure 24. Typical Start-up Using Input Voltage (V
o,max).
I
©2013 General Electric Corporation.
All rights reserved.
IN = 12V, Io =
Page 10
/
GE
Data Sheet
12A Digital PicoDLynxTM: Non-Isolated DC-DC Power Modules
3Vdc –14.4Vdc input; 0.45Vdc to 5.5Vdc output; 12A Output Current
Characteristic Curves
The following figures provide typical characteristics for the 12A Digital PicoDLynxTM at 3.3Vo and 25oC.
100
95
90
85
80
EFFICIENCY, η (%)
75
70
024681012
Vin=4.5V
OUTPUT CURRENT, I
Vin=14V
Vin=12V
(A) AMBIENT TEMPERATURE, TA OC
O
Figure 25. Converter Efficiency versus Output Current.
12
10
8
6
4
2
OUTPUT CURRENT, Io (A)
NC
0.5m/s
(100LFM)
Standard
Part (85° C)
Ruggedized (D)
Part (105° C)
1m/s
(200LFM)
0
55 65 75 85 95 105
Figure 26. Derating Output Current versus Ambient
Temperature and Airflow.
1.5m/s
(300LFM)
2m/s
(400LFM)
(V) (20mV/div)
O
V
OUTPUT VOLTAGE
TIME, t (1μs/div) TIME, t (20μs /div)
Figure 27. Typical output ripple and noise (CO=22F ceramic,
IN = 12V, Io = Io,max, ).
V
(V) (5V/div)
OFF VOLTAGE
ON/OFF
(V) (1V/div) V
O
(V) (50mV/div)
O
(A) (10Adiv) V
O
I
OUTPUT CURRENT, OUTPUT VOLTAGE
Figure 28 Transient Response to Dynamic Load Change from
50% to 100% at 12Vin, Cout=
1x47uF+1x330uF,CTune=2700pF & RTune=330ohms
(V) (5V/div)
IN
(V) (1V/div) V
O
V
OUTPUT VOLTAGE ON
Figure 29. Typical Start-up Using On/Off Voltage (Io = Io,max).
November 19, 2013
TIME, t (2ms/div) TIME, t (2ms/div)
OUTPUT VOLTAGE INPUT VOLTAGE
V
Figure 30. Typical Start-up Using Input Voltage (V
o,max).
I
©2013 General Electric Corporation.
All rights reserved.
IN = 12V, Io =
Page 11
/
GE
Data Sheet
12A Digital PicoDLynxTM: Non-Isolated DC-DC Power Modules
3Vdc –14.4Vdc input; 0.45Vdc to 5.5Vdc output; 12A Output Current
Characteristic Curves
The following figures provide typical characteristics for the 12A Digital PicoDLynxTM at 5Vo and 25oC.
100
95
90
85
80
EFFICIENCY, η (%)
75
70
024681012
Vin=7V Vin=14V
OUTPUT CURRENT, I
Vin=12V
(A) AMBIENT TEMPERATURE, TA OC
O
Figure 31. Converter Efficiency versus Output Current.
12
10
8
6
4
2
OUTPUT CURRENT, Io (A)
NC
0.5m/s
(100LFM)
Standard
Part (85°C)
Ruggedized (D)
Part (105° C)
1m/s
(200LFM)
0
45 55 65 75 85 95 105
Figure 32. Derating Output Current versus Ambient
Temperature and Airflow.
1.5m/s
(300LFM)
(400LFM)
2m/s
(V) (20mV/div)
O
V
OUTPUT VOLTAGE
TIME, t (1μs/div) TIME, t (20μs /div)
Figure 33. Typical output ripple and noise (CO=22F ceramic,
IN = 12V, Io = Io,max, ).
V
(V) (5V/div)
OFF VOLTAGE
ON/OFF
(V) (2V/div) V
O
(V) (50mV/div)
O
(A) (10Adiv) V
O
I
OUTPUT CURRENT, OUTPUT VOLTAGE
Figure 34. Transient Response to Dynamic Load Change from
50% to 100% at 12Vin, Cout= 5x47uF, CTune=1500pF &
RTune=330ohms
(V) (5V/div)
IN
(V) (2V/div) V
O
V
OUTPUT VOLTAGE ON
Figure 35. Typical Start-up Using On/Off Voltage (Io = Io,max).
November 19, 2013
TIME, t (2ms/div) TIME, t (2ms/div)
OUTPUT VOLTAGE INPUT VOLTAGE
V
Figure 36. Typical Start-up Using Input Voltage (V
o,max).
I
©2013 General Electric Corporation.
All rights reserved.
IN = 12V, Io =
Page 12
Loading...