SMH4042A Datasheet, PDF (1/28 Pages) Summit Microelectronics, Inc. – Distributed Power Hot-Swap Controller for CompactPCI

SUMMIT
MICROELECTRONICS, Inc.
SMH4042A
Distributed Power Hot-Swap Controller for CompactPCI^
Preliminary
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 VCC Detection
w Card Voltage Sequencing
FUNCTIONAL BLOCK DIAGRAM
28
VCC
ISLEW
3
A0
8
A1
10
A2
11
SCL
19
SDA
18
EEPROM
Memory
Array
CBI_3
24
–
+
CBI_5
1
–
+
23 ^HST_3V_MON
CONTROL
+
–
+
–
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 I²C Serial Data Interface
w 4k-Bit E²PROM Memory
BD_SEL1#
13
BD_SEL2#
12
1VREF ₅
VGATE3 ₂₂
VGATE5 ₂₇
LOCAL_PCI_RST ₂₀
LOCAL_PCI_RST#
9
SGNL_VLD#
16
HEALTHY# ₁₅
DRVREN#
2
ASSOCIATE
MEMBER
CARD_3V_MON
21
+
–
CARD_5V_MON
25
+
–
1.25V
FAULT#
4
PWR_EN
7
17 ^PCI_RST#
VSEL
6
GND
14
©SUMMIT MICROELECTRONICS, Inc., 2003 • 1717 Fox Drive, San Jose, CA 95131 • Phone [phone] • FAX [phone] • www.summitmicro.com
Characteristics subject to change without notice
2070 9.1 5/27/03
1