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PDF SMH4044 Data sheet ( Hoja de datos )
| Número de pieza | SMH4044 | |
| Descripción | Compact PCI Hot-Swap Controller | |
| Fabricantes | Summit Microelectronics | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de SMH4044 (archivo pdf) en la parte inferior de esta página. Total 20 Páginas | ||
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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
4.7kΩ
1N4148
330kΩ
0.33µF
10Ω
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
1 page  
www.DataSheet4U.com
PIN CONFIGURATION
SMH4044
Preliminary
FAULT#
1VREF
VSEL
PWR_EN
nc
MONITOR 1
A0
LOCAL_PCI_RST#
nc
nc
A1
A2
1
2
3
4
5
6
7
8
9
10
11
12
36 CBI_3
35 HST_3V_MON
34 VGATE3
33 CARD_3V_MON
32 CS#
31 nc
30 MONITOR 2
29 LOCAL_PCI_RST
28 nc
27 SCL
26 SDA
25 nc
2057 PCon
PIN DESCRIPTIONS
A0, A1, A2 (7, 11, 12)
Address inputs 0, 1 and 2 are used to set the three-bit
device address of the memory array. The state of these
inputs will determine the device address for the memory
if it is on a two-wire bus with multiple memories with the
same device type identifier.
SCL (27)
The SCL input is used to clock data into and out of the
memory array. In the write mode, data must remain stable
while SCL is HIGH. In the read mode, data is clocked out
on the falling edge of SCL.
SDA (26)
The SDA pin is a bidirectional pin used to transfer data into
and out of the SMH4044. Data changing from one state
to the other may occur only when SCL is LOW, except
when generating START or STOP conditions. SDA is an
open-drain output and may be wire-ORed with any num-
ber of open-drain outputs.
CARD_3V_MON (33)
This input monitors the card-side 3.3V supply. If the input
falls below VTRIP then the HEALTHY# and SGNL_VLD#
outputs are de-asserted and the reset outputs are driven
active.
CARD_5V_MON (40)
This input monitors the card-side 5V supply. If the input
falls below VTRIP then the HEALTHY# and SGNL_VLD#
outputs are de-asserted and the reset outputs are driven
active.
CBI_3 (36)
CBI_3 is the circuit breaker input for the low supply. With
a series resistor placed in the supply path between
HST_3V_MON and CBI_3, the circuit breaker will trip
whenever the voltage across the resistor exceeds 50mV.
SUMMIT MICROELECTRONICS, Inc.
2057 1.x 8/16/01
5
5 Page 
www.DataSheet4U.com
SMH4044
Preliminary
VCC ≥ 1V
Assert Outputs
LOCAL_PCI_RST &
LOCAL_PCI_RST#
Shut Off Signals
DRVREN#,
HEALTHY#,
SGNL_VLD#,
VGATE3 &
VGATE5
Monitor
BD_SEL1# &
BD_SEL2#
For Insertion
LOW
HIGH
Monitor
VSEL
Input Level
HIGH
LOW
LOW
Monitor
HOST_3V_MON
Input Level
OK
Monitor
VCC &
HOST_3V_MON
Input Level
OK
LOW
Turn On Signals
DRVREN#,
VGATE3 &
VGATE5
Monitor
CARD_3V_MON &
CARD_3V_MON:
≥ VTRIP?
YES
NO
Start Timer
tPURST
Turn On
HEALTHY#
tPURST
Timeout?
YES
NO
PCI_RST
Released?
YES
NO
SUMMIT MICROELECTRONICS, Inc.
2057 Fig02
Release
Resets
Figure 2. Sequence Diagram Flow Chart
2057 1.x 8/16/01
Turn On
SGNL_VLD
11
11 Page | ||
| Páginas | Total 20 Páginas | |
| PDF Descargar | [ Datasheet SMH4044.PDF ] | |
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