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SMH4042AGAHM 数据表(PDF) 2 Page - Summit Microelectronics, Inc.

部件名 SMH4042AGAHM
功能描述  Distributed Power Hot-Swap Controller for CompactPCI
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制造商  SUMMIT [Summit Microelectronics, Inc.]
网页  http://www.summitmicro.com
标志 SUMMIT - Summit Microelectronics, Inc.

SMH4042AGAHM 数据表(HTML) 2 Page - Summit Microelectronics, Inc.

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SMH4042A
2070
9.1 5/27/03
SUMMIT MICROELECTRONICS, Inc.
PIN CONFIGURATION
The SMH4042A is a fully integrated hot swap controller that
provides complete power control for add-in cards ranging in
use for basic hot swap systems to high availability
CompactPCIsystems. 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.
The SMH4042A continuously monitors the host supplies,
the add-in card supplies and the add-in card current. If
the SMH4042A detects the current is higher than the
programmed value it will shut down the MOSFETs and
issue a fault status back to the host.
DESCRIPTION
The internal 512
×8E2PROMcanbeusedasconfiguration
memory for the individual card or as general purpose
memory. The proprietary Data Download mode provides
a more direct interface to the E2PROM, simplifying
access by the add-in card’s controller or ASIC.
Programming of configuration, control and calibration
values by the user can be simplified with the interface
adapter and Windows GUI software obtainable from
Summit Microelectronics.
CBI_5
DRVREN#
ISLEW
FAULT#
1VREF
VSEL
PWR_EN
A0
LOCAL_PCI_RST#
A1
A2
BD_SEL2#
BD_SEL1#
GND
VCC
VGATE5
nc
CARD_5V_MON
CBI_3
HST_3V_MON
VGATE3
CARD_3V_MON
LOCAL_PCI_RST
SCL
SDA
PCI_RST#
SGNL_VLD#
HEALTHY#
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2070 PCon


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