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Summit Microelectronics

SMH4044 Datasheet Preview

SMH4044 Datasheet

Compact PCI Hot-Swap Controller

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SUMMIT
MICROELECTRONICS, Inc.
Cwwowm.DaptaSahceett4PU.CcomI Hot-Swap Controller
With IPMI Support
SMH4044
Preliminary
FEATURES
! IPMI Implementation
" IPMB Interface
" Software Controlled Power-Up/-Down
" Status Reporting: 5V, 3.3V, V1, V2, Healthy,
Signal Valid, Reset
" 2k-Bit E2PROM Memory
! Full Voltage Control for Hot Swap Applications
" Detect, Monitors and Controls up to 4 inde-
pendent supplies
! 14V High Side Driver Generation Allows use of
Low On Resistance N-Channel FETs
! Under-Voltage Lockout
! Electronic Circuit Breakers
" Programmable Over-current Levels
! Card Insertion Detection
! Card Voltage Sequencing
! Flexible Reset Control
" Low Voltage Resets
" Host Reset Filtering
" Soft Reset
! Adjustable Power On Slew Rate
SIMPLIFIED APPLICATION DRAWING
CompactPCI
Backplane
12V
5V
IPMB_SDA
IPMB_SCL
GAO
GA1
GA2
42
26 SDA
VCC
27 SCL
7 A0
11 A1
12 A2
20 SGNL_VLD#
16 BD_SEL1#
15 BD_SEL2#
44
CBI_5
41
VGATE5
40
CARD_5V_MON
DRVREN# 45
MONITOR 2 30
SMH4044
6 MONITOR1
18 GND
HST_
19 HEALTHY# 3V_MON
35
LOCAL_PCI_RST 29
CBI_3 VGATE3 CARD_3V_MON
36 34
33
4.7k
1N4148
330k
0.33µF
10
0.1µF
5V
12V
3.3V
3.3V
2057 SAD-A
Simplified Application Drawing — Triple Voltage Hot Swap (12V, 5V, 3.3V)
©SUMMIT MICROELECTRONICS, Inc., 2001 • 300 Orchard City Dr., Suite 131 • Campbell, CA 95008 • Phone 408-378-6461 • FAX 408-378-6586 • www.summitmicro.com
Characteristics subject to change without notice
2057 1.x 8/16/01
1




Summit Microelectronics

SMH4044 Datasheet Preview

SMH4044 Datasheet

Compact PCI Hot-Swap Controller

No Preview Available !

SMH4044
www.DataSheet4U.com
Preliminary
DESCRIPTION
The SMH4044 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
systems. It detects proper insertion of the card and
senses valid supply voltage levels at the backplane.
Utilizing external low on-resistance N-channel MOS-
FETs, card power is ramped by two high-side driver
outputs that are slew-rate limited at 250V/s.
The internal 256 × 8 E2PROM can be used as configura-
tion memory for the individual card or as general purpose
memory.
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.
The SMH4044 continuously monitors the host supplies,
the add-in card supplies and the add-in card currents. If
the SMH4044 detects the current is higher than the
programmed value it will shut down the MOSFETs and
issue a fault status to the host.
CompactPCI
Backplane
1.8V
5V
1.8V
5V
42
VCC
20 SGNL_VLD#
16 BD_SEL1#
15 BD_SEL2#
44
CBI_5
41
VGATE5
40
CARD_5V_MON
LOCAL_PCI_RST 29
6 MONITOR1
SMH4044
MONITOR 2 30
18 GND
19 HEALTHY#
HST_3V_MON
35
CBI_3 VGATE3
36 34
CARD_3V_MON
33
3.3V
Simplified Application Drawing — Triple Voltage Hot Swap (5V, 3.3V, 1.8V)
3.3V
2057 SAD-B
2
2057 1.x 8/16/01
SUMMIT MICROELECTRONICS, Inc.


Part Number SMH4044
Description Compact PCI Hot-Swap Controller
Maker Summit Microelectronics
Total Page 20 Pages
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