Bel GRND-C2A160 Non-isolated dc/dc converter Datasheet

NON-ISOLATED DC/DC CONVERTERS
10.8 Vdc - 13.2 Vdc Input
0.5 Vdc - 1.6 Vdc/120 A Outputs
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Apr. 01, 2010
GRND-C2A160
RoHS Compliant
Rev.B
Features
• Non-Isolated
• Input Under Voltage Lockout
• Fixed Frequency
• SCP/OCP
• High Efficiency
• Remote On/Off
• 8 bit VID Digital Voltage
Programming
• 2-Wire Remote Sense
• Class 1, Category 2, Non-Isolated DC/DC Converter (refer to IPC-9592)
Applications
•
Networking
•
Computers and peripherals
•
Telecommunications
Description
The GRND-C2A160 is a non-isolated step down dc/dc converter providing up to 120 A of output current and
designed to be compatible with Intel VRM11.1 requirements. Standard features include current monitor, remote
on/off, over current protection, remote sense, 8 bit VID digital voltage programming and a power good signal.
This product also makes use of selectable adaptive positioning to improve transient response performance.
These products may be used almost anywhere low-voltage silicon is being employed and a nominal 12 Vdc
source is available. Typical applications include file servers, work stations and other computing applications.
Part Selection
Output Voltage
Input Voltage
0.5 - 1.6 Vdc
10.8 - 13.2 Vdc
Max. Output
Current
120 A
Max. Output
Power
192 W
Typical
Efficiency
84%
Model Number
Active High
GRND-C2A160
Note: Add “G” suffix at the end of the model number to indicate “Tray Packaging”.
Part Number Explanation
G R ND – C2 A 16 0
1
2
3
4 5
6 7
1---Goldfinger
2---RoHS 6, change “R” to “7” means RoHS 5
3---Series name
4---Series code
5---Wide input range (10.8-13.2V)
6---Wide output range (0.5-1.6V)
7---Suffix
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com
NON-ISOLATED DC/DC CONVERTERS
10.8 Vdc - 13.2 Vdc Input
0.5 Vdc - 1.6 Vdc/120 A Outputs
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Apr. 01, 2010
Absolute Maximum Ratings
Parameter
Min
Typ
Max
Notes
Input Voltage (continuous)
-0.3 V
-
15 V
Remote On/Off
-0.3 V
-
5V
Ambient Temperature
0 °C
-
65 °C
Storage Temperature
-55 °C
-
125 °C
Note: Ratings used beyond the maximum ratings may cause a reliability degradation of the converter or may
permanently damage the device.
Input Specifications
Parameter
Min
Typ
Max
10.8 V
12 V
13.2 V
Input Current (full load)
-
-
30 A
Input Current (no load)
-
600 mA
800 mA
80 mA
100 mA
-
10 mA
25 mA
-
80 mA
150 mA
-
25 mA
50 mA
I t Inrush Current Transient
-
-
5A s
Turn-on Voltage Threshold
9.4 V
10 V
10.6 V
Under Voltage Threshold
8.0 V
9.0 V
10 V
Input Voltage
Input Current (no load)
Remote Off Input Current
Input Reflected Ripple Current
(pk-pk)
Input Reflected Ripple Current
(rms)
2
Notes
With simulated source impedance of 100
nH, 5 Hz to 20 MHz; use two 1000uF/25 V
electrolytic cap with ESR = 0.03 ohm max
at 100 kHz.
2
Note: All specifications are typical at nominal input, full load at 25 °C unless otherwise stated
Output Specifications
Parameter
Min
Typ
Max
1.27 V
1.285 V
1.3 V
Adaptive Positioning
(Droop Impedance)
-
0.8 mOhm
-
Line Regulation
-
-
±8 mV
Regulation Over Temperature
(0deg.C-65deg.C)
-
-
±8 mV
90 A
Thermal design
0
-
120 A
Peak current rating
125 A
-
155 A
Short Circuit Surge Transient
-
-
5A s
Ripple and Noise (rms)
-
3 mV
5 mV
Ripple and Noise (pk-pk)
-
6 mV
10 mV
Output Voltage Set Point
Output Current
Current Limit Threshold
0
Notes
VID=0X32, Iout=0
2
Measured with 3*330uF/6mOhm ESR
SP-CAP, and 10*22uF/0805 +
28*10uF/1206 ceramic capacitors on
output
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com
NON-ISOLATED DC/DC CONVERTERS
10.8 Vdc - 13.2 Vdc Input
0.5 Vdc - 1.6 Vdc/120 A Outputs
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Apr. 01, 2010
Output Specifications (continued)
Parameter
Output Ripple and Noise(pk-pk)
under worst case
Min
Typ
Max
-
-
50 mV
Rise time
-
-
5 mS
Turn on Time
-
2.5 mS
5 mS
Overshoot at Turn on
-
-
1%
Output Capacitance
1490 uF
-
Notes
over all operating input voltage, load
and ambient temperature condition
3*330uF/6mOhm ESR SP-CAP, and
10*22uF/0805 + 28*10uF/1206 ceramic
capacitors. Consult factory regarding
external capacitance outside of this
range
-
Transient Response
Overshoot
50% ~ 100%
Max Load
-
-
50 mV
-
-
25 uS
Overshoot
-
-
50 mV
Settling Time
-
-
25 uS
Settling Time
100% ~ 50%
Max Load
All
di/dt=300A/us,
Vin=12Vdc, Ta=25°C,
with typical cap bank on
the output.
Note: All specifications are typical at nominal input, full load at 25 °C unless otherwise stated.
General Specifications
Parameter
Efficiency
Min
Typ
Max
82%
84%
-
-
400 kHz
-
Switching Frequency
FIT
Notes
Vin=12 V, full load
Calculated Per Bell Core SR-332 (Vin=12
V, Io=80%load, Ta = 25 °C,
9
FIT=10 /MTBF)
TBD
Dimensions
Inches (L × W × H)
Millimeters (L × W × H)
Weight
3.80 x 1.20 x 0.70
96.52 x 30.48 x 17.78
-
50 g
-
Note: All specifications are typical at 25 °C unless otherwise stated.
Control Specifications
Parameter
Min
Typ
Max
Notes
-0.3 V
-
0.4 V
1V
-
5V
The remote on/off pin open, Unit
On.
0 mA
-
1 mA
Remote On/Off
Signal Low (Unit Off)
Signal High (Unit On)
Current Sink
Active High
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com
NON-ISOLATED DC/DC CONVERTERS
10.8 Vdc - 13.2 Vdc Input
0.5 Vdc - 1.6 Vdc/120 A Outputs
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Apr. 01, 2010
Efficiency Data
90.00%
EFFICIENCY
85.00%
80.00%
75.00%
10.8 V
70.00%
12V
65.00%
13.2V
60.00%
55.00%
50.00%
12.00
30.00
60.00
90.00
120.00
OUTPUT CURRENT(A)
VID=0X32
Thermal Derating Curves
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com
NON-ISOLATED DC/DC CONVERTERS
10.8 Vdc - 13.2 Vdc Input
0.5 Vdc - 1.6 Vdc/120 A Outputs
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Apr. 01, 2010
Ripple and Noise Waveform
Ripple and noise at full load, 12V input, VID=0X32 and Ta=25 degC
Transient Response Waveforms
30 A to 90 A Load @ VID=0X32
90 A to 30 A Load @ VID=0X32
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com
NON-ISOLATED DC/DC CONVERTERS
10.8 Vdc - 13.2 Vdc Input
0.5 Vdc - 1.6 Vdc/120 A Outputs
Apr. 01, 2010
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Startup & Shutdown
Rise time
Test Condition: VID=0x32, Iout=120A
Startup time
Startup from on/off
Startup from on/off
Ch1: Vo, Ch3: on/off
Ch1: Vo, Ch3: on/off
Test Condition: VID=0x32, Iout=0A
Test Condition: VID=0x32, Iout=120A
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com
NON-ISOLATED DC/DC CONVERTERS
10.8 Vdc - 13.2 Vdc Input
0.5 Vdc - 1.6 Vdc/120 A Outputs
Apr. 01, 2010
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Startup & Shutdown (continued)
Shutdown
Test Condition: VID=0x32, Iout=0A
Over Current Protection
To provide protection in a fault output overload condition, the module is equipped with internal current-limiting
circuitry and can endure current limiting for a few mili-seconds. If the overcurrent condition persists beyond a few
milliseconds, the module will shut down into hiccup mode and restart once every 400mS. The module operates
normally when the output current goes into specified range. The typical average output current is 5A during
hiccup.
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com
NON-ISOLATED DC/DC CONVERTERS
10.8 Vdc - 13.2 Vdc Input
0.5 Vdc - 1.6 Vdc/120 A Outputs
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Apr. 01, 2010
Over Temperature Protection
L3 is the hottest component
R74 is the thermal sense component
Input Under-voltage Lockout
Input Current
Under-voltage Lockout
Voltage Falling
Voltage Rising
V1
V2
V1=8.5V
V2=10V
Input Voltage (V)
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com
NON-ISOLATED DC/DC CONVERTERS
10.8 Vdc - 13.2 Vdc Input
0.5 Vdc - 1.6 Vdc/120 A Outputs
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Apr. 01, 2010
Mechanical Outline
Pin Connections
Row A
Pin
Function
Pin
Row B
Function
Pin
Function
Pin
Function
1
VIN-
15
VO+
40
VO+
54
VIN+
2
VIN-
16
VO-
39
VO-
53
VIN+
3
VIN-
17
VO-
38
VO-
52
VIN+
4
VID4
18
VO-
37
VO-
51
VID3
5
VID2
19
VO+
36
VO+
50
VID1
6
VID0
20
VO+
35
VO+
49
VID5
7
VO_SEN+
21
VO+
34
VO+
48
VO_SEN-
8
VR_Ready
22
VO-
33
VO-
47
VR_hot#
9
OUTEN
23
VO-
32
VO-
46
VID7
10
IMON
24
VO-
31
VO-
45
PSI
11
VID6
25
VO+
30
VO+
44
VRM_pres#0
12
VRM_pres#2
26
VO+
29
VO+
43
VRM_pres#1
13
VO+
27
VO+
28
VO+
42
VO+
14
VO+
41
VO+
Note:
1) Undimensioned components are shown for visual reference only.
2) All dimensions in inches (mm); Tolerances: x.xx +/-0.02 in. (x.x +/-0.5mm) x.xxx +/-0.010 in. (x.xx +/-0.25mm).
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com
NON-ISOLATED DC/DC CONVERTERS
10.8 Vdc - 13.2 Vdc Input
0.5 Vdc - 1.6 Vdc/120 A Outputs
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Apr. 01, 2010
Signal Definitions
Vin+
VRM Input Voltage
Vin-
VRM Input Ground
VID0, VID1, VID2,
VID3, VID4, VID5,
VID6, VID7
Logic level inputs used to set the output voltage, refer to VID table. Connect VID0
thru VID7 pins to open-drain outputs with external pull-up resistors. Valid logic low
is -0.3V to 0.4V, valid logic high level is 0.8V to 5.0V.
VO_SEN+,
VO_SEN-
Remote voltage sense lines. Connect these at the point of load, to VO+ and VOrespectively.
VR_Ready
Open drain output signal indicating that the start-up sequence is complete output
voltage has moved to the programmed VID value.
VR_HOT#
Open-drain output signal, pulled actively low indicating a thermal event has been
detected on the VRM.
OUTEN
IMON
PSI
VRM_pres#1,
VRM_pres#2,
VRM_pres#3
Logic level input used to enable the converter when high. Valid logic low is -0.3V to
0.4V, valid logic high level is 1.0V to 5.0V
Analog voltage signal representing the output load current
Logic level input, indicates when the CPU is in a low power state
VRM11.1 presence indicator(s)
VO+
VRM Output Voltage
VO-
VRM Output Ground
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com
NON-ISOLATED DC/DC CONVERTERS
10.8 Vdc - 13.2 Vdc Input
0.5 Vdc - 1.6 Vdc/120 A Outputs
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Apr. 01, 2010
VID CODES (VRM11.0 CODES)
HEX
Vout
HEX
Vout
HEX
Vout
HEX
Vout
(VID6 - VID0)
0
0
0
1
0
2
0
3
0
4
0
5
0
6
0
7
0
8
0
9
0
A
0
B
0
C
0
D
0
E
0
F
1
0
1
1
1
2
1
3
1
4
1
5
1
6
1
7
1
8
1
9
1
A
1
B
1
C
1
D
1
E
1
F
2
0
2
1
2
2
2
3
2
4
2
5
2
6
2
7
2
8
2
9
2
A
2
B
2
C
2
D
2
E
2
F
(VDC)
OFF
OFF
1.60000
1.59375
1.58750
1.58125
1.57500
1.56875
1.56250
1.55625
1.55000
1.54375
1.53750
1.53125
1.52500
1.51875
1.51250
1.50625
1.50000
1.49375
1.48750
1.48125
1.47500
1.46875
1.46250
1.45625
1.45000
1.44375
1.43750
1.43125
1.42500
1.41875
1.41250
1.40625
1.40000
1.39375
1.38750
1.38125
1.37500
1.36875
1.36250
1.35625
1.35000
1.34375
1.33750
1.33125
1.32500
1.31875
(VID7 - VID0)
3
0
3
1
3
2
3
3
3
4
3
5
3
6
3
7
3
8
3
9
3
A
3
B
3
C
3
D
3
E
3
F
4
0
4
1
4
2
4
3
4
4
4
5
4
6
4
7
4
8
4
9
4
A
4
B
4
C
4
D
4
E
4
F
5
0
5
1
5
2
5
3
5
4
5
5
5
6
5
7
5
8
5
9
5
A
5
B
5
C
5
D
5
E
5
F
(VDC)
1.31250
1.30625
1.30000
1.29375
1.28750
1.28125
1.27500
1.26875
1.26250
1.25625
1.25000
1.24375
1.23750
1.23125
1.22500
1.21875
1.21250
1.20625
1.20000
1.19375
1.18750
1.18125
1.17500
1.16875
1.16250
1.15625
1.15000
1.14375
1.13750
1.13125
1.12500
1.11875
1.11250
1.10625
1.10000
1.09375
1.08750
1.08125
1.07500
1.06875
1.06250
1.05625
1.05000
1.04375
1.03750
1.03125
1.02500
1.01875
(VID7 - VID0)
6
0
6
1
6
2
6
3
6
4
6
5
6
6
6
7
6
8
6
9
6
A
6
B
6
C
6
D
6
E
6
F
7
0
7
1
7
2
7
3
7
4
7
5
7
6
7
7
7
8
7
9
7
A
7
B
7
C
7
D
7
E
7
F
8
0
8
1
8
2
8
3
8
4
8
5
8
6
8
7
8
8
8
9
8
A
8
B
8
C
8
D
8
E
8
F
(VDC)
1.01250
1.00625
1.00000
0.99375
0.98750
0.98125
0.97500
0.96875
0.96250
0.95625
0.95000
0.94375
0.93750
0.93125
0.92500
0.91875
0.91250
0.90625
0.90000
0.89375
0.88750
0.88125
0.87500
0.86875
0.86250
0.85625
0.85000
0.84375
0.83750
0.83125
0.82500
0.81875
0.81250
0.80625
0.80000
0.79375
0.78750
0.78125
0.77500
0.76875
0.76250
0.75625
0.75000
0.74375
0.73750
0.73125
0.72500
0.71875
(VID7 - VID0)
9
0
9
1
9
2
9
3
9
4
9
5
9
6
9
7
9
8
9
9
9
A
9
B
9
C
9
D
9
E
9
F
A
0
A
1
A
2
A
3
A
4
A
5
A
6
A
7
A
8
A
9
A
A
A
B
A
C
A
D
A
E
A
F
B
0
B
1
B
2
F
E
F
F
(VDC)
0.71250
0.70625
0.70000
0.69375
0.68750
0.68125
0.67500
0.66875
0.66250
0.65625
0.65000
0.64375
0.63750
0.63125
0.62500
0.61875
0.61250
0.60625
0.60000
0.59375
0.58750
0.58125
0.57500
0.56875
0.56250
0.55625
0.55000
0.54375
0.53750
0.53125
0.52500
0.51875
0.51250
0.50625
0.50000
OFF
OFF
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com
NON-ISOLATED DC/DC CONVERTERS
10.8 Vdc - 13.2 Vdc Input
0.5 Vdc - 1.6 Vdc/120 A Outputs
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Apr. 01, 2010
Revision History
Date
Revision
Changes Detail
Approval
1. Change to Bel new datasheet format; remove “Preliminary”.
2. In Absolute Maximum Ratings: 1)add remote on/off voltage;
2)update Ambient and storage temperature
3. Input spec: 1)update turn off voltage
2010-4-1
B
4. Output spec: 1)add load and temperature regulation; 2)add short
circuit surge transient; 3)add rise time; 4)update output current limit
Jack Fan
5. Update efficiency curve, add thermal derating curve, add startup and
shutdown figures, add OCP, OTP and UVLO figure
6. Add Signal Definitions and VID CODES.
RoHS Compliance
Complies with the European Directive 2002/95/EC, calling for the elimination of lead and
other hazardous substances from electronic products.
©2010 Bel Fuse Inc. Specifications subject to change without notice. 040110
CORPORATE
FAR EAST
EUROPE
Bel Fuse Inc.
206 Van Vorst Street
Jersey City, NJ 07302
Tel 201-432-0463
Fax 201-432-9542
www.belfuse.com
Bel Fuse Ltd.
8F/ 8 Luk Hop Street
San Po Kong
Kowloon, Hong Kong
Tel 852-2328-5515
Fax 852-2352-3706
www.belfuse.com
Bel Fuse Europe Ltd.
Preston Technology Management Centre
Marsh Lane, Suite G7, Preston
Lancashire, PR1 8UD, U.K.
Tel 44-1772-556601
Fax 44-1772-888366
www.belfuse.com
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