GE
3Vdc –14.4Vdc input; 0.45Vdc to 5.5Vdc output; 20A Output Current
Features
Data Sheet
20A Digital MicroDLynx
TM
: Non-Isolated DC-DC Power Modules
Compliant to RoHS EU Directive 2002/95/EC (Z versions)
Compatible in a Pb-free or SnPb reflow environment (Z
versions)
Compliant to IPC-9592 (September 2008), Category 2, Class II
DOSA based
Wide Input voltage range (3Vdc-14.4Vdc)
Output voltage programmable from 0.45Vdc to 5.5Vdc via
external resistor and PMBus
TM #
Digital interface through the PMBus
TM #
protocol
Tunable Loop
TM
to optimize dynamic output voltage response
Flexible output voltage sequencing EZ-SEQUENCE
Power Good signal
Fixed switching frequency with capability of external
synchronization
Output over current protection (non-latching)
Over temperature protection
Remote On/Off
Ability to sink and source current
Cost efficient open frame design
Small size: 20.32 mm x 11.43 mm x 8.5 mm
0.45 in x 0.334 in)
Wide operating temperature range [-40°C to 85°C]
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
(0.8 in x
RoHS Compliant
Applications
Vin+
Distributed power architectures
Intermediate bus voltage applications
Telecommunications equipment
Servers and storage applications
Networking equipment
Industrial equipment
VIN
PGOOD
SEQ
Cin
VOUT
VS+
RTUNE
Vout+
MODULE
CLK
TRIM
DATA
ADDR0
SMBALRT#
ADDR1
ON/OFF
SIG_GND
SYNC GND VS-
RADDR1
CTUNE
Co
RTrim
RADDR0
GND
Description
The 20A Digital MicroDLynx
TM
power modules are non-isolated dc-dc converters that can deliver up to 20A of output current.
These modules operate over a wide range of input voltage (V
IN
= 3Vdc-14.4Vdc) and provide a precisely regulated output voltage
from 0.6Vdc to 5.5Vdc, programmable via an external resistor and PMBus
TM
control. Features include a digital interface using the
PMBus
TM
protocol, remote On/Off, adjustable output voltage, over current and over temperature protection. The PMBus
TM #
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.
Page 1
GE
3Vdc –14.4Vdc input; 0.45Vdc to 5.5Vdc output; 20A Output Current
Absolute Maximum Ratings
Data Sheet
20A Digital MicroDLynx
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
85
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
=3V 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
=
5Vdc
All
All
All
All
I
IN,No load
I
IN,No load
I
IN,stand-by
I
2
t
50
-64
69
134
16.4
1
mA
mA
mA
A
2
s
mAp-p
dB
Device
All
All
Symbol
V
IN
I
IN,max
Min
3
Typ
Max
14.4
19
Unit
Vdc
Adc
April 24, 2013
©2012 General Electric Company. All rights reserved.
Page 2
GE
3Vdc –14.4Vdc input; 0.45Vdc to 5.5Vdc output; 20A 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 (for V
O
≥ 2.5Vdc)
Line (V
IN
=V
IN, min
to V
IN, max
)
Load (I
O
=I
O, min
to I
O, max
)
Output Regulation (for V
O
< 2.5Vdc)
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
V
O,set
= 0.6Vdc
V
O, set
= 1.2Vdc
V
O,set
= 1.8Vdc
V
O,set
= 2.5Vdc
V
O,set
= 3.3Vdc
V
O,set
= 5.0Vdc
Switching Frequency
1
External
Data Sheet
20A Digital MicroDLynx
TM
: Non-Isolated DC-DC Power Modules
Device
All
All
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
% V
O, set
mV
mV
mV
% V
O, set
+3.0
5.5
0
+25
0.5
+0.4
10
5
10
0.4
All
All
50
20
100
38
mV
pk-pk
mV
rms
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
η
η
η
f
sw
2x47
2x47
2x47
0
2x47
1000
10000
20
μF
μF
μF
Adc
% I
o,max
Arms
%
%
%
%
%
%
130
1.4
79.2
87.1
90.4
92.6
93.8
95.2
500
All
kHz
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
3Vdc –14.4Vdc input; 0.45Vdc to 5.5Vdc output; 20A Output Current
Electrical Specifications
(continued)
Parameter
Frequency Synchronization
Synchronization Frequency Range
High-Level Input Voltage
Low-Level Input Voltage
Input Current, SYNC
Minimum Pulse Width, SYNC
Maximum SYNC rise time
Device
All
All
All
All
All
All
All
V
IH
V
IL
I
SYNC
t
SYNC
t
SYNC_SH
100
100
425
2.0
Symbol
Min
Data Sheet
20A Digital MicroDLynx
TM
: Non-Isolated DC-DC Power Modules
Typ
Max
600
0.4
100
Unit
kHz
V
V
nA
ns
ns
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
15,455,614
4.54 (0.16)
Max
Unit
Hours
g (oz.)
Feature Specifications
Unless otherwise indicated, specifications apply overall 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 code 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
All
All
I
IL
V
IL
―
-0.2
―
―
10
0.6
μA
Vdc
All
All
I
IH
V
IH
―
2
―
―
1
V
IN, max
mA
Vdc
All
All
I
IL
V
IL
-0.2
1
0.6
mA
V
All
All
I
IH
V
IH
2
1
V
IN,max
mA
V
Device
Symbol
Min
Typ
Max
Unit
April 24, 2013
©2012 General Electric Company. All rights reserved.
Page 4
GE
3Vdc –14.4Vdc input; 0.45Vdc to 5.5Vdc output; 20A Output Current
Feature Specifications (cont.)
Parameter
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
Over Temperature Protection
(See Thermal Considerations section)
PMBus Over Temperature Warning Threshold *
Tracking Accuracy
(Power-Up: 2V/ms)
(Power-Down: 2V/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
2.6
All
Tdelay
―
Device
Symbol
Min
Data Sheet
20A Digital MicroDLynx
TM
: Non-Isolated DC-DC Power Modules
Typ
Max
Units
1.2
―
msec
All
All
Tdelay
Trise
―
―
0.8
2.7
―
―
3.0
msec
msec
% V
O, set
°C
°C
All
All
All
All
T
ref
T
WARN
V
SEQ
–V
o
V
SEQ
–V
o
120
120
100
100
mV
mV
3.25
0.25
14
500
Vdc
Vdc
Vdc
Vdc
mV
108
105
110
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
