參數(shù)資料
型號(hào)： SMH4042G-AHN
廠(chǎng)商： Electronic Theatre Controls, Inc.
英文描述： Hot Swap⑩ Controller
中文描述： ⑩熱插拔控制器
文件頁(yè)數(shù)： 20/28頁(yè)
文件大?。?/td> 225K
代理商： SMH4042G-AHN
20
SMH4042
2037-07 9/23/99
CompactPCI
Applications Aid
The long pins engage.
Power is supplied to the SMH4042, the LED and the BD_SEL
”
pull-up resistor.
V(I/O) is either the early 5V or the early 3V, dependent upon the interface operating levels.
The LED is illuminated by LOCAL_PCI_RST# going low.
The medium length pins contact.
The ENUM# signal should
not be
active at this point.
The board is fully inserted and the injector switch is closed.
ENUM# is driven low.
BD_SEL# makes contact (optional: the pull-up on the board indicates to the host the presence of a board.)
The host responds to the ENUM# signal and drives BD_SEL# low.
This provides the last gating item to the SMH4042 before it will begin the power-on sequence.
V(I/O)
BD_SEL2#
V(I/O)
PRESENT
BD_SEL1#
SMH4042
Power ON
Board
Platform
RESET
LOCAL_PCI_RESET#
BD_SEL#
3.9K
10K
R
LIM
eP
PCI_RST#
PCI_RST#
eP
EIM=0
Board Status
INS
eP
EXT
Open Collector
ENUM#
LOCAL_PCI_RESET#
2037 ILL30.0
Figure 9.Full HotSwap board/host interface
Switching + and -12Volts
In some applications there may be a need to switch + or -12Volts to the backend circuits. Using the SMH4042
DRVREN# output these voltages can be controlled as shown in the Figure 9 below:
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參數(shù)描述
SMH4042G-AKM 制造商:未知廠(chǎng)家 制造商全稱(chēng):未知廠(chǎng)家 功能描述:Hot Swap⑩ Controller
SMH4042G-AKN 制造商:未知廠(chǎng)家 制造商全稱(chēng):未知廠(chǎng)家 功能描述:Hot Swap⑩ Controller
SMH4042G-ALM 制造商:未知廠(chǎng)家 制造商全稱(chēng):未知廠(chǎng)家 功能描述:Hot Swap⑩ Controller
SMH4042G-ALN 制造商:未知廠(chǎng)家 制造商全稱(chēng):未知廠(chǎng)家 功能描述:Hot Swap⑩ Controller
SMH4042G-BGM 制造商:未知廠(chǎng)家 制造商全稱(chēng):未知廠(chǎng)家 功能描述:Hot Swap⑩ Controller
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