GRND-40A160 [BEL]
NON-ISOLATED DC/DC CONVERTERS; 非隔离式DC / DC转换器
| 型号： | GRND-40A160 |
| 厂家： | 
BEL FUSE INC. |
| 描述： | NON-ISOLATED DC/DC CONVERTERS |
| 文件： | 总5页 (文件大小：193K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
NON-ISOLATED DC/DC CONVERTERS
12V Input / Programmable Output / VRM11 Compatible
GRND-40A160 Rev. B
•
•
•
•
•
•
High efficiency means less power dissipation
Remote on/off
Wide input range (10.8 – 13.2V)
I2C/SMbus available – consult factory
2-Wire Remote sense
7 bit VID digital voltage programming.
Description
The GRND-40A Series is a non-isolated step down DC/DC converter providing up to 45A of output current and
designed to be compatible with the Intel VRM11 requirements. Standard features include remote on/off, over
current protection, remote sense, VR_Fan signal, VR_Hot signal and a power good signal. This product also
makes use of adaptive positioning to improve transient response performance. These products may be used
almost anywhere low-voltage silicon is being employed and a nominal 12V source is available. Typical
applications include file servers, work stations and other computing applications.
Part Selection
Output
Voltage
Input
Voltage
12V
Output Current
(Thermal Design)
35A
Output Current
(Peak Current)
45A
Typical
Efficiency
85%
Model Number
0.82 – 1.60V
GRND-40A160
Input Specifications
Parameter
Min
Typ
Max
Notes
Input Voltage Range
Input Current (disabled)
Input Current (full load)
Reflected Ripple Current
10.8 VDC
13.2 VDC
17mA
8.0A
400mA rms
With 2 330uF, 25mOhm
capacitor and 200nH of input
inductance.
Output Specifications
Parameter
Min
Typ
Max
35A
Notes
Output Current
0A
Thermal design
45A
Peak current rating
no load, excluding Adaptive
positioning, VRM11 VID 0x32
Set Point Accuracy
1.27V
1.28V
1.25 mOhm
20mV
1.29V
Adaptive Positioning
(Droop Impedance)
Ripple and Noise
pk-pk, 0 to 20MHz Bandwidth
Full load. Note 3
Turn on Time
15mS
30mS
Transient Response
di/dt = 5A/uS
Deviation
TBD
TBD
Load step =50% of max load.
Settling Time
Remote Sense Compensation
Output Capacitance
±0.3VDC
See note
See note
1,400uF
Consult factory regarding
external capacitance outside
of this range
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
10.3 –13.2V Input / Programmable Output / 90A VRM11
General Specifications
Pin Connections
Parameter
Specification
Row A
Row B
Switching Frequency
TBD MHz typical (fixed)
Pin
Function
Pin
Function
Dimensions
1
2
3
4
5
6
7
8
9
PWRGD
Reserved
OUTEN
LL1
164 VBIAS
inches
mm
3.8 x 1.055 x 0.393
96.5 x 26.8 x 9.98
TBD
0°C to 65°C
-40°C to 100°C
163 Reserved
162 LL0
Weight
Operating Temperature
161 VID6
160 VID4
159 VID2
158 VID0
157 LPL
VID5
VID3
Non-Operating Temperature
Protection Features
Over current
VID1
Reserved
+SENSE
Reserved
VR_HOT
IMON
110% to 170% max Io
UVLO Vin < 10.0V
Active High
156 -SENSE
155 VIDSEL
154 VRM_PRES
153 Reserved
Key
Undervoltage
10
11
12
Remote On/Off
Efficiency (full load)
1.3V output
85%
Key
35A load
13-16 VIN
149-152 VIN
17-20 GND
21-24 VOUT
25-26 GND
27-30 VOUT
31-34 GND
35-38 VOUT
39-42 GND
43-46 VOUT
47-48 GND
49-52 VOUT
53-56 GND
57-60 VOUT
61-64 GND
65-68 VOUT
69-70 GND
71-74 VOUT
75-78 GND
79-82 VOUT
145-148 GND
141-144 VOUT
139-140 GND
135-138 VOUT
131-134 GND
127-130 VOUT
123-126 GND
119-122 VOUT
117-118 GND
113-116 VOUT
109-112 GND
105-108 VOUT
101-104 GND
97-100 VOUT
95-96 GND
91-94 VOUT
87-90 GND
83-86 VOUT
Notes:
1. Mechanical key between pins 12 & 13 and 152 &
153
2. Recommended mating connector Molex iCool P/N
87787-1011.
3. Measured with 2 X 560u 7mOhm ESR Al Poly and
28 X 10u 10mOHm ESR ceramic capacitors on output.
4. Leave Reserved pins floating in end use application.
2007 Bel Fuse Inc. Specifications subject to change without notice. 082807
CORPORATE
FAR EAST
EUROPE
Bel Fuse Inc.
Bel Fuse Ltd.
Bel Fuse Europe Ltd.
206 Van Vorst Street
Jersey City, NJ 07302
Tel 201-432-0463
Fax 201-432-9542
www.belfuse.com
8F/ 8 Luk Hop Street
San Po Kong
Preston Technology Management Centre
Marsh Lane, Suite G7, Preston
Lancashire, PR1 8UD, U.K.
Tel 44-1772-556601
Kowloon, Hong Kong
Tel 852-2328-5515
Fax 852-2352-3706
www.belfuse.com
Fax 44-1772-888366
www.belfuse.com
NON-ISOLATED DC/DC CONVERTERS
12V Input / Programmable Output / VRM11 Compatible
Signal Definitions
Symbol
VIN
Definitions
Input power to the converter
GND
Common return for both input and output
VID0, VID1,
VID2, VID3,
VID4, VID5
VID6
Logic level inputs used to set the output voltage, refer to VID table. Connect VID0 thru
VID6 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 5.5V.
VIDSEL
Digital input used to select between extended VR10 and VR11 VID tables.
The open drain power good signal indicates the output voltage is within 10% of the VID
PWRGD
setpoint.
+SENSE
-SENSE
Remote voltage sense lines. Connect these at the point of load, to VOUT and GND
respectively.
VOUT
Output voltage available to the load.
Logic level input used to enable the converter when high. Valid logic low is -0.3V to 0.4V,
valid logic high level is 0.8V to 5.5V.
OUTEN
Load line select pins. Working in conjunction with VID_Select, LL0/LL1 are used to select
load line slope. Currently only 1.25mohm slope is supported. Module can be configured
to support multiple load line slopes.
LL0/LL1
IMON
Analog average load current signal, scaling TBD.
VBIAS
3.3V Bias input. 3.1 – 3.5V, 200mA max, required for operation of unit.
Open-drain output signal, pulled actively low indicating a thermal event has been
detected on the VRM
VR_HOT
VRM_PRES Signal used by system to indicate the VRM is present in the design.
Low Power Lockout. This signal has a 10k pull-down resistor internal to the VRM. The
application board ties this signal to OUTEN, so the VRM will turn on only when plugged
LPL
into a socket with this configuration. LPL and OUTEN are AND’ed in the VRM, both must
be logic high in order for the VRM output to be enabled.
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
10.3 –13.2V Input / Programmable Output / 90A VRM11
VRM11.0 VID
Codes
Vo
Vo
Vo
HEX
(VDC)
HEX
(VDC)
HEX
(VDC)
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
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
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
7
7
7
7
7
7
7
7
7
7
7
7
7
7
7
7
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
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
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
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
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
1.51875
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
Note: VIDs with VID7=1 not
shown because this VRM
does not have a VID7 pin.
2007 Bel Fuse Inc. Specifications subject to change without notice. 082807
CORPORATE
Bel Fuse Inc.
FAR EAST
EUROPE
Bel Fuse Ltd.
Bel Fuse Europe Ltd.
206 Van Vorst Street
Jersey City, NJ 07302
Tel 201-432-0463
Fax 201-432-9542
www.belfuse.com
8F/ 8 Luk Hop Street
San Po Kong
Preston Technology Management Centre
Marsh Lane, Suite G7, Preston
Lancashire, PR1 8UD, U.K.
Tel 44-1772-556601
Kowloon, Hong Kong
Tel 852-2328-5515
Fax 852-2352-3706
www.belfuse.com
Fax 44-1772-888366
www.belfuse.com
NON-ISOLATED DC/DC CONVERTERS
12V Input / Programmable Output / VRM11 Compatible
Mechanical Outline Drawing
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com
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