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参数资料
| 型号： | FND850-12RG |
| 厂商： | Power-One |
| 文件页数： | 1/11页 |
| 文件大小： | 0K |
| 描述： | FRONT END DC/DC 850W 12V |
| 标准包装： | 2 |
| 系列： | * |
FND850-12RG Front-End Preliminary Data Sheet
DC Input, 12V Output, 850 Watts
Features
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RoHS compliant for all six substances
Universal input voltage range (36-75 VDC)
High power density, 15.15 Watts/cubic inch
1U or 2U height configurations
Active current share with ORing FETs
I 2 C interface status and control
External standby voltage of 5 VDC @ 2 A
Overtemperature, overload, and overvoltage
protection
Status LEDs: INPUT OK, DC OK,
Overtemperature
Applications
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Telecom, datacom, and distributed power
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Airflow direction from rear-to-front
systems
Description
The FND850-12RG DC-DC front-end provides a 12 VDC output for telecom, datacom, and other distributed
power applications. The FND850-12RG small 1U by 2U size allows for configurations of either height in hot-
swap redundant systems while its internal fan and cooling design permits wide use with reliable operation.
Status is provided with front panel LEDs, logic signals, and via the I 2 C management interface bus. In addition,
the I 2 C bus can enable the power supply, control fan speed, and adjust the output voltage from 7 to 12 VDC.
This powerful feature allows the same power supply to be used in various applications.
In addition, the FND850-12RG is designed with airflow from the rear of the power supply to the front. This
airflow direction supports those critical applications where space limitations and/or higher ambient temperatures
near the rear of the racking system, prohibit the discharge of higher temperature airflow from regular front-to-rear
cooled power supplies.
The FND850-12RG meets international safety requirements and is CE marked to the Low Voltage Directive
(LVD).
Model Selection
(%)
pk-pk %
Model
FND850-12RG
Input
Voltage
(VDC)
36 to 44
44 to 75
36 to 75
Nominal
Output
Voltage
(VDC)
12
12
5 (Standby)
Adjustment
Range
(VDC)
7 to 12
7 to 12
N/A
Maximum
Output
Current
(Amps)
58
71
2
Line
Regulation
(%)
±0.17
±0.17
±5
Load
Regulation
1
±0.8
±0.8
±5
Ripple &
Noise
2
1
1
1
1
2
% of Vnom
Maximum peak-to-peak noise is expressed as a percentage of output voltage; 20 MHz bandwidth.
Input Specifications
Parameter
Conditions/Description
Min.
Nom.
Max.
Units
Input Voltage
Hold-up Time
Input Current
Inrush Surge Current
DC input voltage
After DC input; removing at full power
At 100% load (main and standby output) ,
Vin = 36 VDC
Internally limited. Vin = 36 VDC @ 25 oC
Internally limited. Vin = 75 VDC @ 25 °C
36
4
5
75
23.5
35
25
VDC
ms
A rms
A pk
MCD10060 Rev. 1.8, 23-Jul-10
Page 1 of 11
www.power-one.com
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