Click Here to download this file: http://www.murata-ps.com/data/power/mdc_vrk81b100cs.pdf

VRK81B100CS
www.murata-ps.com
Programmable, 100A Single Output DC/DC Converter
SELECTION GUIDE
V (NOM.)
V
Output
Current
A
12
0.8-1.55
100
Input Voltage
OBSOLETE PRODUCT
Order Code
VRK81B100CS-1C
Last time buy: August 31, 2014.
CHARACTERISTICS
Click Here For Obsolescence Notice ofINPUT
February
2014.
Parameter
Output Voltage
Conditions1
Input voltage operating range
Under voltage lockout
FEATURES

Meets AMD K8 requirements
Maximum input current

DAC Programmable output voltage
No-load input current
Disabled input current

Power good output

Differential remote sense

Remote enable
Enable - positive logic
Turn-on threshold
Turn-off threshold
Hysteresis voltage
Typical: 80A, 1.4VID, VIN = 12V
Max: 80A, 1.55VID, VIN = 12V
Enable state, no load
Disabled state
On state range
Off state range
Efficiency
% (Typ.)
85
Min.
Typ.
Max.
Units
10.2
6.5
5.4
0.7
12.0
6.9
6.0
0.9
11
13.2
7.3
6.6
1.1
V
100
10
0.8
-0.3
200
20
Typ.
13
400
50
5
0.4
A
mA
V
OUTPUT CHARACTERISTICS


Supervisory functions

Latch off overcurrent

Short circuit protection

Tri-state output when disabled

Dynamic VID capability

SMBus temperature monitor
DESCRIPTION
Parameter
Conditions1
Min.
Voltage set point
Line regulation
Load regulation
Voltage total regulation DC
5-Bit DAC controlled
0.800
-5
Ripple & noise 2
VRK81B100CS is designed to meet the fast load
transients required by AMD 64-bit processors
and is fully compliant with the latest AMD64™
processor power specifications. High efficiency of
85% at full load for reduced power dissipation to
simplify system thermal management. Packaged in
a compact design, VRK81B100CS is ideal for use in
a wide variety of server applications.
This product is a direct replacement for
VRK81B080CS.
VID-50mV
20MHz bandwidth, using
recommended output capacitors
Current operating range
Efficiency
Turn-on time
Recommended bulk output
capacitance
0
0.6
IO = 100A, VID = 1.325V
IO = 80A, VID = 1.325V
VIN present: enable to 90% VOUT
560μF, 4V alum poly
10μF, 1206 X7R ceramic
Max.
Units
1.55
5.0
V
mV
mΩ
V
VID+50mV
8.4
0
82
83
mVp-p
100
84
85
A
%
50
mS
EA
EA
Max.
Units
8
25
GENERAL CHARACTERISTICS
Parameter
Conditions1
Semiconductor junction
temperature
Package rated to 150ºC
Material flammability
MTBF
Switching frequency
UL 94V-0
Calculated (RAC PRISM)
Per phase
Min.
Typ.
115
ºC
x106 Hrs
KHz
1.303
300
TEMPERATURE CHARACTERISTICS
Parameter
Conditions1
Min.
Storage temperature range
Non-condensing
-40
70
Operating temperature
range
See derating graph
0
60
Typ.
Max.
Units
ºC
PROTECTION CHARACTERISTICS
For full details go to
www.murata-ps.com/rohs
Parameter
Conditions1
Min.
Output overcurrent
shutdown
Latching
115
Overvoltage Indication,
CBOUT
VOUT
Typ.
Max.
Units
120
A
2.1
V
1. VIN = 12VDC, TA = 25ºC, Airflow = 400LFM unless otherwise noted.
2. Output ripple voltage is specified when measured with recommended capacitance at the output of the converter.
www.murata-ps.com
www.murata-ps.com/support
MDC_VRK81B100CS.C01 Page 1 of 4
VRK81B100CS
Programmable, 100A Single Output DC/DC Converter
THERMAL DERATING GRAPH
110
100
Current
90
200 LFM
300 LFM
80
400 LFM
500 LFM
70
60
50
30
40
50
60
Temperature
VID CODES
VID4
VID3
VID2
VID1
VID0
VOUT
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
1.550
1.525
1.500
1.475
1.450
1.425
1.400
1.375
1.350
1.325
1.300
1.275
1.250
1.225
1.200
1.175
1.150
1.125
1.100
1.075
1.050
1.025
1.000
0.975
0.950
0.925
0.900
0.875
0.850
0.825
0.800
Shutdown
www.murata-ps.com
www.murata-ps.com/support
MDC_VRK81B100CS.C01 Page 2 of 4
VRK81B100CS
Programmable, 100A Single Output DC/DC Converter
PART NUMBER CODING
VRK81B100CS-1C
Family
VR = VRM
Pb free
C = RoHS
Version
Form factor
S = Standard (2U)
Mounting type
C = Card edge
Peak output current
100 = 100A
AMD K8 support
K81 = K8
Input voltage
B = 12VIN
PACKAGE SPECIFICATIONS
PIN ASSIGNMENT
Pin
Signal
Pin
Signal
1
2
3
4
5
6
7
8
9
101
111
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
GND
GND
GND
VID4
VID2
VID0
COREFB_H
PWRGD
ENABLE
SmDA
SMCL
SGND
VDD CORE+
VDD CORE+
VDD CORE+
GND
GND
GND
VDD CORE+
VDD CORE+
VDD CORE+
VDD CORE+
VDD CORE+
VDD CORE+
GND
GND
GND
54
53
52
51
50
49
48
47
461
451
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
+12VIN
+12VIN
+12VIN
VID3
VID1
NC
CORERB_L
CBOUT
ADD 0
ADD 1
VRMPRES_L
+5V ALWAYS
VDD CORE+
VDD CORE+
VDD CORE+
GND
GND
GND
VDD CORE+
VDD CORE+
VDD CORE+
VDD CORE+
VDD CORE+
VDD CORE+
GND
GND
GND
1. Optional features. Substitute “NC” if option is not ordered.
www.murata-ps.com
www.murata-ps.com/support
MDC_VRK81B100CS.C01 Page 3 of 4
VRK81B100CS
Programmable, 100A Single Output DC/DC Converter
PACKAGE SPECIFICATIONS (continued)
MECHANICAL DIMENSIONS
4:.
Recommended Interface Connector Options
Typco/Elcon
283-0172-01303 (Solder Tail, Long)
283-0172-02303 (Solder Tail, Short)
284-0202-03003 (Surface Mount)
All dimensions in inches ±0.03 (mm ±0.25mm).
Murata Power Solutions, Inc.
11 Cabot Boulevard, Mansfield, MA 02048-1151 U.S.A.
ISO 9001 and 14001 REGISTERED
Weight: 2.08oz (59g)
This product is subject to the following operating requirements
and the Life and Safety Critical Application Sales Policy:
Refer to: http://www.murata-ps.com/requirements/
Murata Power Solutions, Inc. makes no representation that the use of its products in the circuits described herein, or the use of other
technical information contained herein, will not infringe upon existing or future patent rights. The descriptions contained herein do not imply
the granting of licenses to make, use, or sell equipment constructed in accordance therewith. Specifications are subject to change without
notice.
© 2014 Murata Power Solutions, Inc.
www.murata-ps.com
www.murata-ps.com/support
MDC_VRK81B100CS.C01 Page 4 of 4