GE
4.5Vdc –14.4Vdc input; 0.6Vdc to 2.0Vdc output; 40A Output Current
Features
Data Sheet
40A Analog MegaDLynx
TM
: Non-Isolated DC-DC Power Modules
Compliant to RoHS EU Directive 2011/65/EU (Z versions)
Compliant to IPC-9592 (September 2008), Category 2, Class II
Compatible in a Pb-free or SnPb reflow environment (Z versions)
Wide Input voltage range (4.5Vdc-14.4Vdc)
Output voltage programmable from 0.6Vdc to 2.0Vdc via
external resistor.
Tunable Loop
TM
to optimize dynamic output voltage response.
Power Good signal.
Fixed switching frequency with capability of external
synchronization.
Output overcurrent protection (non-latching).
Over temperature protection.
Remote On/Off.
Ability to sink and source current.
Cost efficient open frame design.
Small size: 33.02 mm x 13.46 mm x 10.9 mm
(1.3 in x 0.53 in x 0.429 in)
Wide operating temperature range [-40°C to 105°C].
Ruggedized (-D) version able to withstand high levels of shock
and vibration
UL*
60950-1 2
nd
Ed. Recognized,
CSA
†
C22.2 No. 60950-1-
07 Certified, and
VDE
‡
(EN60950-1 2
nd
Ed.) Licensed
ISO** 9001 and ISO 14001 certified manufacturing facilities
Vout+
RoHS Compliant
Applications
Industrial equipment
Distributed power architectures
Intermediate bus voltage applications
Telecommunications equipment
Servers and storage applications
Networking equipment
Vin+
VIN
PGOOD
SEQ
SHARE
Cin
VOUT
VS+
RTUNE
CTUNE
MODULE
TRIM
Co
RTrim
ON/OFF
SIG_GND
SYNC GND VS-
GND
Description
The 40A Analog MegaDLynx
TM
power modules are non-isolated dc-dc converters that can deliver up to 40A of output current. These
modules operate over a wide range of input voltage (V
IN
= 4.5Vdc-14.4Vdc) and provide a precisely regulated output voltage from
0.6Vdc to 2.0Vdc, programmable via an external resistor. Features include remote On/Off, adjustable output voltage, over current and
overtemperature protection. The module also includes the Tunable Loop
TM
feature that allows the 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
April 24, 2013
©2012 General Electric Company. All rights reserved.
GE
4.5Vdc –14.4Vdc input; 0.6Vdc to 2.0Vdc output; 40A Output Current
Absolute Maximum Ratings
Data Sheet
40A Analog MegaDLynx
TM
: Non-Isolated DC-DC Power Modules
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
Input Voltage
Continuous
Operating Ambient Temperature
(see Thermal Considerations section)
Storage Temperature
All
T
stg
-55
125
°C
All
T
A
-40
105
°C
Device
All
Symbol
V
IN
Min
-0.3
Max
15
Unit
V
Electrical Specifications
Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature conditions.
Parameter
Operating Input Voltage
Maximum Input Current
(V
IN
=4.5V to 14V, I
O
=I
O, max
)
Input No Load Current
(V
IN
= 12Vdc, I
O
= 0, module enabled)
Input Stand-by Current
(V
IN
= 12Vdc, module disabled)
Inrush Transient
Input Reflected Ripple Current, peak-to-peak
(5Hz to 20MHz, 1μH source impedance; V
IN
=0 to 14V
,
I
O
= I
Omax
;
See Test Configurations)
Input Ripple Rejection (120Hz)
V
O,set
= 0.6 Vdc
V
O,set
= 2Vdc
All
All
All
All
I
IN,No load
I
IN,No load
I
IN,stand-by
I
2
t
90
-60
54.7
104
12.5
1
mA
mA
mA
A
2
s
mAp-p
dB
Device
All
All
Symbol
V
IN
I
IN,max
Min
4.5
Typ
Max
14.4
24
Unit
Vdc
Adc
April 24, 2013
©2012 General Electric Company. All rights reserved.
Page 2
GE
4.5Vdc –14.4Vdc input; 0.6Vdc to 2.0Vdc output; 40A Output Current
Electrical Specifications
(continued)
Parameter
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)
Adjustment Range (selected by an external resistor)
(Some output voltages may not be possible depending on the
input voltage – see Feature Descriptions Section)
Remote Sense Range
Output Regulation
Line (V
IN
=V
IN, min
to V
IN, max
)
Load (I
O
=I
O, min
to I
O, max
)
Temperature (T
ref
=T
A, min
to T
A, max
)
Output Ripple and Noise on nominal output
(V
IN
=V
IN, nom
and I
O
=I
O, min
to I
O, max
Co = 0.1μF // 22 μF ceramic
capacitors)
Peak-to-Peak (5Hz to 20MHz bandwidth)
RMS (5Hz to 20MHz bandwidth)
External Capacitance
1
Without the Tunable Loop
TM
ESR ≥ 1 mΩ
With the Tunable Loop
TM
ESR ≥ 0.15 mΩ
ESR ≥ 10 mΩ
Output Current (in either sink or source mode)
Output Current Limit Inception (Hiccup Mode)
(current limit does not operate in sink mode)
Output Short-Circuit Current
(V
O
≤250mV) ( Hiccup Mode )
Efficiency
V
IN
= 12Vdc, T
A
=25°C
I
O
=I
O, max ,
V
O
= V
O,set
Switching Frequency
Frequency Synchronization
Synchronization Frequency Range
High-Level Input Voltage
Low-Level Input Voltage
Input Current, SYNC
Minimum Pulse Width, SYNC
Maximum SYNC rise time
1
External
Data Sheet
40A Analog MegaDLynx
TM
: Non-Isolated DC-DC Power Modules
Device
All
All
All
All
All
All
All
Symbol
V
O, set
V
O, set
V
O
Min
-1.0
-3.0
0.6
Typ
Max
+1.0
Unit
% V
O, set
% V
O, set
Vdc
Vdc
mV
mV
% V
O, set
+3.0
2.0
0.5
0.4
6
10
All
All
50
20
100
38
mV
pk-pk
mV
rms
All
All
All
All
All
All
V
O,set
= 0.6Vdc
V
O, set
= 1.2Vdc
V
O,set
= 1.8Vdc
All
All
All
All
All
All
All
All
C
O, max
C
O, max
C
O, max
I
o
I
O, lim
I
O, s/c
η
η
η
f
sw
6x47
6x47
6x47
0
6x47
7000
8500
40
μF
μF
μF
Adc
% I
o,max
Arms
%
%
%
150
2.1
81.3
88.5
91.5
350
400
480
0.4
100
100
100
kHz
kHz
V
V
nA
ns
ns
VIH
VIL
ISYNC
tSYNC
tSYNC_SH
2.0
capacitors may require using the new Tunable Loop
TM
feature to ensure that the module is stable as well as getting the best transient response. See
the Tunable Loop
TM
section for details.
April 24, 2013
©2012 General Electric Company. All rights reserved.
Page 3
GE
4.5Vdc –14.4Vdc input; 0.6Vdc to 2.0Vdc output; 40A Output Current
General Specifications
Parameter
Calculated MTBF (I
O
=0.8I
O, max
, T
A
=40°C) Telecordia Issue 2 Method
1 Case 3
Weight
Device
All
Min
Typ
Data Sheet
40A Analog MegaDLynx
TM
: Non-Isolated DC-DC Power Modules
Max
Unit
Hours
6,498,438
11.7 (0.41)
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
On/Off Signal Interface
(V
IN
=V
IN, min
to V
IN, max
; open collector or equivalent,
Signal referenced to GND)
Device is with suffix “4” – Positive Logic (See Ordering Information)
Logic High (Module ON)
Input High Current
Input High Voltage
Logic Low (Module OFF)
Input Low Current
Input Low Voltage
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
Input High Voltage
Logic Low (Module ON)
Input low Current
Input Low Voltage
Turn-On Delay and Rise Times
(V
IN
=V
IN, nom
, I
O
=I
O, max ,
V
O
to within ±1% of steady state)
Case 1: On/Off input is enabled and then input power is
applied (delay from instant at which V
IN
= V
IN, min
until V
o
=
10% of V
o, set
)
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
o
= 10% of V
o, set
)
Output voltage Rise time (time for V
o
to rise from
10% of Vo, set to 90% of Vo, set)
Output voltage overshoot (T
A
= 25
o
C
V
IN
= V
IN, min
to V
IN, max
,I
O
= I
O, min
to I
O, max
)
With or without maximum external capacitance
Output voltage overshoot (T
A
= 25
o
C
V
IN
= V
IN, min
to V
IN, max
,I
O
= I
O, min
to I
O, max
)
With or without maximum external capacitance
All
All
I
IL
V
IL
―
-0.2
―
―
10
0.4
μA
Vdc
All
All
I
IH
V
IH
―
2
―
―
1
V
IN, max
mA
Vdc
All
All
I
IL
V
IL
-0.3
1
0.4
mA
V
All
All
I
IH
V
IH
3.5
10
V
IN,max
µA
V
Device
Symbol
Min
Typ
Max
Unit
All
Tdelay
―
1.1
―
msec
All
All
Tdelay
Trise
―
―
700
1.5
―
―
3.0
3.0
μsec
msec
% V
O, set
% V
O, set
April 24, 2013
©2012 General Electric Company. All rights reserved.
Page 4
GE
4.5Vdc –14.4Vdc input; 0.6Vdc to 2.0Vdc output; 40A Output Current
Data Sheet
40A Analog MegaDLynx
TM
: Non-Isolated DC-DC Power Modules
Feature Specifications (Continued)
Parameter
Over Temperature Protection
(See Thermal Considerations section)
Tracking Accuracy
(Power-Up: 0.5V/ms)
(Power-Down: 0.5V/ms)
(V
IN, min
to V
IN, max
; I
O, min
to I
O, max
V
SEQ
< V
o
)
Input Undervoltage Lockout
Turn-on Threshold
Turn-off Threshold
Hysteresis
PGOOD (Power Good)
Signal Interface Open Drain, V
supply
5VDC
Overvoltage threshold for PGOOD ON
Overvoltage threshold for PGOOD OFF
Undervoltage threshold for PGOOD ON
Undervoltage threshold for PGOOD OFF
Pulldown resistance of PGOOD pin
Sink current capability into PGOOD pin
All
All
All
All
All
All
108
110
92
90
50
5
%V
O, set
%V
O, set
%V
O, set
%V
O, set
mA
All
All
All
4.25
3.96
0.25
Vdc
Vdc
Vdc
Device
All
All
All
Symbol
T
ref
V
SEQ
–V
o
V
SEQ
–V
o
Min
Typ
145
100
100
Max
Units
°C
mV
mV
April 24, 2013
©2012 General Electric Company. All rights reserved.
Page 5
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