Datasheet > SMH4042S-AKM

SMH4042S-AKM

更新时间： 2024-01-25 19:35:29

品牌	Logo	应用领域
SUMMIT		控制器
页数	文件大小	规格书
28页	227K
描述
Hot Swap™ Controller

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技术参数
数据手册

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SMH4042S-AKM 技术参数

是否Rohs认证：	不符合	生命周期：	Obsolete
包装说明：	,	Reach Compliance Code：	unknown
风险等级：	5.92	Is Samacsys：	N
湿度敏感等级：	1	Base Number Matches：	1

SMH4042S-AKM 数据手册

SUMMIT

SMH4042

MICROELECTRONICS, Inc.

Hot Swap™ Controller

DESCRIPTION

FEATURES

•

Full Voltage Control for Hot Swap Applications

CompactPCI High Availability Compatible

TheSMH4042isafullyintegratedhotswapcontrollerthat

provides complete power control for add-in cards ranging

in use for basic hot swap systems to high availability

systems. It detects proper insertion of the card and

senses valid supply voltage levels at the backplane.

Utilizing external low on-resistance N-channel

MOSFETs, card power is ramped by two high-side driver

outputs that are slew-rate limited at 250V/s.

On-board 15V High Side Driver Generation

Allows use of Low On-resistance N-Channel FETS

Undervoltage Lockout

Electronic Circuit Breakers

Card Insertion Detection

Host VCC Detection

Card Voltage Sequencing

•

Flexible Reset Control

The SMH4042 continuously monitors the host supplies,

the add-in card supplies and the add-in card current. If the

SMH4042 detects the current is higher than the pro-

grammed value it will shut down the MOSFETs and issue

a fault status back to the host.

Low Voltage Resets

Host Reset Filtering

Soft Reset

•

Adjustable Power-on Slew Rate

Supports Mixed Voltage Cards

The on board E²PROM can be used as configuration

memory for the individual card or as general purpose

memory. The proprietary DataDownload mode provides

amoredirectinterfacetotheE²PROM,simplifyingaccess

by the add-in card’s controller or ASIC.

Integrated 4K Bit 2-Wire E²PROM Memory

Data Download™ Mode [Simplifies

Downloading of Configuration Memory into

Interface ASIC or MCU]

APPLICATIONS

•

CompactPCI Hot Swap Control

VME Live Insertion Control

FUNCTIONAL BLOCK DIAGRAM

VCC5

BD_SEL1#

BD_SEL2#

CBI_3

CBI_5

EEPROM

Memory

Array

50mV

ASSOCIATE

MEMBER

Charge

Pump

Ref

Voltage

SDA

SCL

50mV

1Vref

Slew Rate

Control

VGATE3

VGATE5

DRVREN#

Control

Circuitry

HST_3V_MON

LOCAL_PCI_RST#

FAULT#

PCI_RST#

LOCAL_PCI_RST

CARD_5V_MON

PWR_EN

SGNL_VLD#

HEALTHY#

CARD_3V_MON

2037 ILL2.2

1.25V

VSEL

ISLEW

SUMMIT MICROELECTRONICS, Inc.

•

300 Orchard City Drive, Suite 131

•

Campbell, CA 95008

•

Telephone 408-378-6461

•

Fax 408-378-6586

•

www.summitmicro.com

©SUMMITMICROELECTRONICS,Inc.1999

2037 8.0 8/8/00

Characteristics subject to change without notice

12 3 4 5 6 7...28

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