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參數(shù)資料
| 型號(hào)： | SMH4804 |
| 廠商： | Summit Microelectronics, Inc. |
| 英文描述： | -48V Programmable Hot Swap Sequencing Power Controller |
| 中文描述： | - 48V的可編程序熱插拔電源控制器 |
| 文件頁數(shù)： | 10/41頁 |
| 文件大?。?/td> | 574K |
| 代理商： | SMH4804 |
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Pin Descriptions
SMH4804
10
2050 3.7 10/30/02
Summit Microelectronics
–
PIN DESCRIPTIONS
Table 1 provides the type, name, and description of the SMH4804 pins. Pin numbers are provided for both the
28-pin SOIC and 48-pin TQFP packages.
Pin Number
(28-Pin SOIC)
Pin Number
(48-Pin TQFP)
Pin Type
(I/O)
Pin Name
Description
1
44
I
DRAIN SENSE
The DRAIN SENSE input monitors the voltage at the
drain of the external power MOSFET switch with
respect to VSS. An internal 10μA source pulls the
DRAIN SENSE signal towards the 5V reference level.
DRAIN SENSE must be held below 2.5V to enable the
PG[4:1] outputs.
2
46
I
A0
The A0 input works in conjunction with the A1 and A2
inputs. Together these inputs are used for decoding
multiple devices on the serial bus. The A0 input has an
internal 50K
pull-up to 5V.
3
48
O
VGATE
The VGATE output activates an external power
MOSFET switch. This signal supplies a constant
current output (100μA typical), which allows easy
adjustment of the MOSFET to turn on slew rate.
4
1
I
EN/TS
The Enable/Temperature Sense input is the master
enable input. If EN/TS is less than 2.5V, VGATE is
disabled. This pin has an internal 200K
pull-up to 5V.
5
2
I
PD1#
The PD1# pin works in conjunction with the PD2# pin
to optionally enable VGATE and the PG[4:1]outputs
when they are at V
SS
. This pin has an internal 50K
pull-up to 5V.
6
3
I
PD2#
The PD2# pin works in conjunction with the PD1# pin
to optionally enable VGATE and the PG[4:1]# outputs
when they are at V
SS
. This pin has an internal 50K
pull-up to 5V.
7
5
O
FAULT#
FAULT# is an open-drain, active-low output that
indicates the fault status of the device.
8
7
I
RESET#
The RESET# pin is used to clear latched fault
conditions. When this pin is asserted, the VGATE and
PG[4:1]# outputs are disabled. Refer to the section on
Circuit Breaker Operation for more information. This
pin has an internal 50K
pull-up to 5V.
9
9
I/O
SDA
SDA is the bidirectional serial data I/O port. This pin
has an internal 50K
pull-up to 5V.
Table 1. SMH4804 Pin Descriptions
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SMH4812 | Distributed Power Hot-Swap Controller |
| SMH4812G | Distributed Power Hot-Swap Controller |
| SMH4812S | Distributed Power Hot-Swap Controller |
| SMH4814 | Dual Feed Active-ORing Programmable Hot Swap Controller |
| SMH4814NCR00 | Dual Feed Active-ORing Programmable Hot Swap Controller |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SMH4804F | 制造商:SUMMIT 功能描述: |
| SMH4811 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:DISTRIBUTED POWER HOT SWAP CONTROLLER |
| SMH4811A | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:DISTRIBUTED POWER HOT SWAP CONTROLLER |
| SMH4811A_09 | 制造商:SUMMIT 制造商全稱:SUMMIT 功能描述:Programmable Distributed Power Hot-Swap Controller for High-Availability Systems |
| SMH4811AG | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:DISTRIBUTED POWER HOT SWAP CONTROLLER |
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