GE
4.5Vdc –14.4Vdc input; 0.45Vdc to 2.0Vdc output; 40A Output Current
Features
Data Sheet
40A Digital 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, ClassII
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. Digitally adjustable down to 0.45Vdc
Digital interface through the PMBus
TM #
protocol
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
RoHS Compliant
Applications
Industrial equipment
Distributed power architectures
Intermediate bus voltage applications
Telecommunications equipment
Servers and storage applications
Networking equipment
Vin+
Vout+
VIN
PGOOD
SEQ
Cin
VOUT
VS+
RTUNE
CTUNE
Co
RTrim
RADDR1
RADDR0
MODULE
CLK
TRIM
DATA
ADDR0
SMBALRT#
ADDR1
ON/OFF
SHARE
GND
SIG_GND
SYNC GND VS-
Description
The 40A Digital Mega DLynx
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 0.45Vdc to 2.0Vdc, 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
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
#
The PMBus name and logo are registered trademarks of the System Management Interface Forum (SMIF)
April 24, 2013
©2012 General Electric Company. All rights reserved.
GE
4.5Vdc –14.4Vdc input; 0.45Vdc to 2.0Vdc output; 40A Output Current
Absolute Maximum Ratings
Data Sheet
40A Digital 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
SEQ, SYNC, VS+
CLK, DATA, SMBALERT#
Operating Ambient Temperature
(see Thermal Considerations section)
Storage Temperature
All
T
stg
-55
125
°C
All
All
All
T
A
-40
7
3.6
105
V
V
°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; 0.45Vdc 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)
PMBus Adjustable Output Voltage Range
PMBus Output Voltage Adjustment Step Size
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 Digital MegaDLynx
TM
: Non-Isolated DC-DC Power Modules
Device
All
All
All
All
All
All
All
All
All
Symbol
V
O, set
V
O, set
V
O
V
O
,adj
Min
-1.0
-3.0
0.6
-25
0.4
Typ
Max
+1.0
Unit
% V
O, set
% V
O, set
Vdc
%V
O,set
%V
O,set
Vdc
mV
mV
% V
O, set
+3.0
2.0
0
+25
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; 0.45Vdc 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
Data Sheet
40A Digital MegaDLynx
TM
: Non-Isolated DC-DC Power Modules
Typ
6,498,4
38
11.7
(0.41)
Max
Unit
Hours
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
Tdelay
―
1.1
―
msec
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
All
Tdelay
Trise
―
―
700
1.5
―
―
3.0
μsec
msec
% V
O, set
3.0
% V
O, set
April 24, 2013
©2012 General Electric Company. All rights reserved.
Page 4
GE
4.5Vdc –14.4Vdc input; 0.45Vdc to 2.0Vdc output; 40A Output Current
Feature Specifications (cont.)
Parameter
Over Temperature Protection
(See Thermal Considerations section)
PMBus Over Temperature Warning Threshold*
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
PMBus Adjustable Input Under Voltage Lockout
Thresholds
Resolution of Adjustable Input Under Voltage Threshold
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
All
All
All
All
All
2.5
Device
All
All
All
All
Symbol
T
ref
T
WARN
V
SEQ
–V
o
V
SEQ
–V
o
Min
Data Sheet
40A Digital MegaDLynx
TM
: Non-Isolated DC-DC Power Modules
Typ
145
130
Max
Units
°C
°C
100
100
mV
mV
4.25
3.96
0.25
14
500
Vdc
Vdc
Vdc
Vdc
mV
108
110
92
90
50
5
%V
O, set
%V
O, set
%V
O, set
%V
O, set
mA
* Over temperature Warning – Warning may not activate before alarm and unit may shutdown before warning.
April 24, 2013
©2012 General Electric Company. All rights reserved.
Page 5
京公网安备 11010802033920号
EEWORLD
