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参数资料
| 型号： | FC400R1-29 |
| 元件分类： | 电源模块 |
| 英文描述： | 1-OUTPUT 400 W DC-DC REG PWR SUPPLY MODULE |
| 文件页数： | 3/18页 |
| 文件大小： | 521K |
| 代理商： | FC400R1-29 |
Tyco Electronics Corp.
11
Advance Data Sheet
July 2001
18 Vdc to 36 Vdc Input, 28 Vdc Output; 400 W
FC400R1-29 Power Module; dc-dc Converter:
Feature Descriptions (continued)
SYNC OUT Pin (continued)
When synchronizing several modules together, the
modules can be connected in a daisy-chain fashion
where the SYNC OUT pin of one module is connected
to the SYNC IN pin of another module. Each module in
the chain will synchronize to the frequency of the first
module in the chain.
To avoid loading effects, ensure that the SYNC OUT
pin of any one module is connected to the SYNC IN pin
of only one module. Any number of modules can be
synchronized in this daisy-chain fashion.
Overtemperature Protection
To provide protection in a fault condition, the unit is
equipped with an over temperature shutdown circuit.
The shutdown circuit will not engage unless the unit is
operated above the maximum case temperature of
approximately 107 °C. This unit is equipped with an
automatic restart feature which gets activated when
case temperature drops approximately 25 °C below
temperature shut down.
Forced Load Sharing (Parallel Operation)
For either redundant operation or additional power
requirements, the power modules can be configured for
parallel operation with forced load sharing (see Figure
15). For a typical redundant configuration, Schottky
diodes or an equivalent should be used to protect
against short-circuit conditions. Because of the remote
sense, the forward-voltage drops across the Schottky
diodes do not affect the set point of the voltage applied
to the load. For additional power requirements, where
multiple units are used to develop combined power in
excess of the rated maximum, the Schottky diodes are
not needed.
Good layout techniques should be observed for noise
immunity. To implement forced load sharing, the follow-
ing connections must be made:
s
The parallel pins of all units must be connected
together. The paths of these connections should be
as direct as possible.
s
All remote-sense pins should be connected to the
power bus at the same point, i.e., connect all
SENSE(+) pins to the (+) side of the power bus at the
same point and all SENSE(–) pins to the (–) side of
the power bus at the same point. Close proximity and
directness are necessary for good noise immunity.
When not using the parallel feature, leave the
PARALLEL pin open.
8-581 (F)
Figure 15. Wiring Configuration for Redundant
Parallel Operation
Power Good Signal
The PWR GOOD pin provides an open-drain signal
(referenced to the SENSE(–) pin) that indicates the
operating state of the module. A low impedance
(<100
) between PWR GOOD and SENSE(–) indi-
cates that the module is operating. A high impedance
(>1 M
) between PWR GOOD and SENSE(–) indi-
cates that the module is off or has failed. The PWR
GOOD pin can be pulled up through a resistor to an
external voltage to facilitate sensing. This external volt-
age level must not exceed 40 V, and the current into the
PWR GOOD pin during the low-impedance state
should be limited to 1 mA maximum.
CASE
ON/OFF
VI(+)
VI(–)
SENSE(+)
SENSE(–)
VO(+)
VO(–)
PARALLEL
CASE
ON/OFF
VI(+)
VI(–)
SENSE(+)
SENSE(–)
VO(+)
VO(–)
PARALLEL
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相关代理商/技术参数 |
参数描述 |
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| FC40150-0 | 制造商:Amphenol Corporation 功能描述:LEAD 2.54MM F/F 150MM 40WA 制造商:Amphenol Aerospace 功能描述:LEAD, 2.54MM, F/F, 150MM, 40WAY 制造商:Amphenol Corporation 功能描述:LEAD, 2.54MM, F/F, 150MM, 40WAY; Connector Type A:IDC Female; Connector Type B:IDC Socket; No. of Conductors:40; Pitch Spacing:2.54mm; Cable Length - Imperial:5.91"; Cable Length - Metric:150mm; Jacket Colour:Grey; SVHC:No SVHC ;RoHS Compliant: Yes |
| FC40150-S | 制造商:Amphenol Corporation 功能描述:LEAD 2.54MM F/F S/R 150MM 制造商:Amphenol Aerospace 功能描述:LEAD, 2.54MM, F/F, S/R, 150MM, 40WAY 制造商:Amphenol Corporation 功能描述:LEAD, 2.54MM, F/F, S/R, 150MM, 40WAY; Connector Type A:IDC Female; Connector Type B:IDC Socket; No. of Conductors:40; Pitch Spacing:2.54mm; Cable Length - Imperial:5.91"; Cable Length - Metric:150mm; Jacket Colour:Grey; SVHC:No SVHC ;RoHS Compliant: Yes |
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| FC-402-2 | 制造商:Struthers-Dunn 功能描述: |
| FC-402-3 | 制造商:Struthers-Dunn 功能描述: |
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