SMT4004 Datasheet, PDF (1/23 Pages) List of Unclassifed Manufacturers – Distributed Power Hot-Swap Controller

SUMMIT
MICROELECTRONICS, Inc.
Distributed Power Hot-Swap Controller
SMT4004
FEATURES
l Programmable Voltage and Current Monitoring
w Monitors 4 independent supplies
w Programmable Host-side Under- and Over-
Voltage Thresholds
w Programmable Card-side Under-Voltage
Monitors
w Programmable Card-side Circuit Breaker
Delay and QuickTrip™ Threshold Levels
l Programmable Card-side Trakker Function
w Programmable Slew Rate Control
w Guarantees and Enforces Supply Differential
Tracking
l Programmable Watchdog and Longdog Timers
(0 to 6.4 seconds)
l Operates From Any One of Four Supply Voltages
l Nonvolatile Fault Register
w Records Source of Any Interrupt
w Readable in “Dead Board” Environment
l All Communications to Configuration Registers
and Memory Array are via 2-wire Serial Inter-
face
FUNCTIONAL BLOCK DIAGRAM
UV_OVERRIDE 12
VO1 20
CB1 37
VI1 41
VO2 21
CB2 36
VI2 40
VO3 22
CB3 35
VI3 39
SUPPLY
MANAGER
#1
SUPPLY
MANAGER
#2
SUPPLY
MANAGER
#3
PWR_ON FORCE_SD SEATED1# SEATED2# MR# IRQ_CLR#
33
27
10
11
5
6
SEQUENCE
ENABLE
LOGIC
RESET &
STATUS
OUTPUT
CONTROL
LOGIC
CHARGE
PUMP &
VGATE
CONTROL
7 IRQ#
13 RST1#
14 RST2#
15 RST3#
16 RST4#
3 CROWBAR
25 CBFAULT
26 HEALTHY#
32 VGATE1
31 VGATE2
30 VGATE3
29 VGATE4
28 VGG_CAP
24 ^ENABLE
VO4 23
CB4 34
VI4 38
SUPPLY
MANAGER
#4
POWER
SUPPLY
ARBITRATION
TRAKKER
LOGIC
TIMER
LOGIC
MEMORY
& 2-WIRE
BUS
INTERFACE
9 TRKR_IRQ#
48 WLDI
1 LDO#
2 WDO#
4 1.25VREF
43 A0
44 A1
45 A2
46 SDA
47 SCL
42
8
18
19
VDD_CAP PGND DGND AGND
17
PGND
2049 BD 2.1
©SUMMIT MICROELECTRONICS, Inc., 2000 • 300 Orchard City Dr., Suite 131 • Campbell, CA 95008 • Phone [phone] • FAX [phone] • www.summitmicro.com
2049 2.2 9/13/00
Characteristics subject to change without notice
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