SUMMIT
MICROELECTRONICS, Inc.
SMH4042A
Preliminary
Distributed Power Hot-Swap Controller for
CompactPCI
FEATURES
l
Full Voltage Control for Hot Swap Applications
w
15V High Side Driver Generation Allows use
of Low On Resistance N-Channel FETs
w
Under-Voltage Lockout
w
Electronic Circuit Breakers
w
Card Insertion Detection
w
Host V
CC
Detection
w
Card Voltage Sequencing
l
Flexible Reset Control
w
Low Voltage Resets
w
Host Reset Filtering
w
Soft Reset
l
Adjustable Power On Slew Rate
l
Suppoprts Mixed Voltage Cards
l
Two Wire I
2
C Serial Data Interface
w
4k-Bit E
2
PROM Memory
FUNCTIONAL BLOCK DIAGRAM
28
VCC
BD_SEL1#
BD_SEL2#
3
8
10
11
19
18
24
ISLEW
A0
A1
A2
SCL
SDA
–
13
12
1VREF
VGATE3
EEPROM
Memory
Array
VGATE5
5
22
27
CBI_3
LOCAL_PCI_RST
LOCAL_PCI_RST#
20
9
+
–
23
HST_3V_MON
+
–
21
CARD_3V_MON
25
CARD_5V_MON
+
–
1.25V
7
17
6
PWR_EN
PCI_RST#
VSEL
GND
14
©SUMMIT MICROELECTRONICS, Inc., 2003 • 1717 Fox Drive, San Jose, CA 95131 • Phone 408-436-9890 • FAX 408-436-9897 •
www.summitmicro.com
Characteristics subject to change without notice
2070
9.1 5/27/03
+
+
–
–
1
CBI_5
+
SGNL_VLD#
CONTROL
ASSOCIATE
MEMBER
16
HEALTHY#
15
DRVREN#
2
FAULT#
4
1