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PDF SMT4004F Data sheet ( Hoja de datos )
| Número de pieza | SMT4004F | |
| Descripción | Distributed Power Hot-Swap Controller | |
| Fabricantes | ETC | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de SMT4004F (archivo pdf) en la parte inferior de esta página. Total 23 Páginas | ||
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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 408-378-6461 • FAX 408-378-6586 • www.summitmicro.com
2049 2.2 9/13/00
Characteristics subject to change without notice
1
1 page  
SMT4004
VIX
CBX
VOX
– OV
+
Comparator
VREF
+ UV
–
Comparator
VGATE Enable
VGATE and
TRAKKER
Logic
Programmable
Delay
25mV
Circuit
Breaker
Comparator
+
–
Programmable
Quick Trip
Threshold
+
–
Quick
Trip
Comparator
( = Programmable)
OC To IRQ
Quick Trip
–
+ UV1
Comparator
To Crowbar
To RST
VREF
+
– UV2
Comparator
2049 Fig01 1.0
Figure 1. Supply Manager Circuit
CARD-SIDE MANAGEMENT
On the card-side the TRAKKER monitors two program-
mable under-voltage thresholds on the VO inputs: UV1
and UV2. UV1 can be used to generate a warning interrupt
that the supply is decaying, and UV2 can be used to
generate a reset condition or a crowbar output. The card-
side under-voltage (UV1) threshold value is programmed
in Registers R08 through R0B. Like the bus-side thresh-
olds the levels can be programmed in 20mV increments
(on top of 0.9V). The second level (UV2) is determined by
the formula UV2 = UV1 – [(UV1 × 0.01) × n], where n is the
value in Registers R0C through R0F.
It should be noted that either one or both of the card-side
monitors can be disabled via Registers R0C through R0F.
OVER-CURRENT PROTECTION
The CB inputs are the circuit breaker inputs for the supply
voltages. With a series resistor placed in the supply path
between VI and CB the circuit breaker will trip whenever
the voltage across the resistor exceeds 25mV.
SUMMIT MICROELECTRONICS, Inc.
2049 2.2 9/13/00
5
5 Page 
SMT4004
IRQ Source Select (for Supply Managers 1 and 2)
D7 D6
VI1-OV VI1-UV
1x
x1
xx
xx
xx
xx
xx
xx
D5
VO1-1
x
x
1
x
x
x
x
x
D4
VO1-2
x
x
x
1
x
x
x
x
Register R13
D3 D2 D1
VI2-OV VI2-UV VO2-1
xxx
xxx
xxx
xxx
1x x
x 1x
xx 1
xxx
D0
VO2-2
x
x
x
x
x
x
x
1
Action
Selects bus-side1 OV as an IRQ#
trigger
Selects bus-side1 UV as an IRQ#
trigger
Selects card-side1 UV1 as an IRQ#
trigger
Selects card-side1 UV2 as an IRQ#
trigger
Selects bus-side2 OV as an IRQ#
trigger
Selects bus-side2 UV as an IRQ#
trigger
Selects card-side2 UV1 as an IRQ#
trigger
Selects card-side2 UV2 as an IRQ#
trigger
2049 Table08 1.0
IRQ Source Select (for Supply Managers 3 and 4)
D7 D6
VI3-OV VI3-UV
1x
x1
xx
xx
xx
xx
xx
xx
D5
VO3-1
x
x
1
x
x
x
x
x
D4
VO3-2
D3
VI4-OV
Register R14
D2 D1
VI4-UV VO4-1
xxxx
xxxx
xxxx
1x x x
x 1x x
xx 1x
xxx 1
xxxx
D0
VO4-2
x
x
x
x
x
x
x
1
Action
Selects bus-side3 OV as an IRQ#
trigger
Selects bus-side3 UV as an IRQ#
trigger
Selects card-side3 UV1 as an IRQ#
trigger
Selects card-side3 UV2 as an IRQ#
trigger
Selects bus-side4 OV as an IRQ#
trigger
Selects bus-side4 UV as an IRQ#
trigger
Selects card-side4 UV1 as an IRQ#
trigger
Selects card-side4 UV2 as an IRQ#
trigger
2049 Table09 1.0
SUMMIT MICROELECTRONICS, Inc.
2049 2.2 9/13/00
11
11 Page | ||
| Páginas | Total 23 Páginas | |
| PDF Descargar | [ Datasheet SMT4004F.PDF ] | |
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