SiP5630
Vishay Siliconix
New Product
Document Number: 73007
S-41263--Rev. A, 05-Ju1-04
www.vishay.com
1
9-Line SCSI Bus Terminators
FEATURES
D Auto Selection of S/E or LVD SCSI Termination
D 2.7-V to 5.25-V TERMPWR Range
D Meets SCSI-1, SCSI-2, SPI-2 (ULTRA-2), SPI-3
(ULTRA-160) and SPI-4 (ULTRA-320) Standards
D Differential Failsafe Bias
D Thermal Package
D On-Chip Thermal Shutdown Circuit
D Master/Slave Input
D Active Negation
D Hot Swap Compatible
D Pin Compatible with UCC5630 and UCC5670
D Lead (Pb)-Free QSOP-36 Package
APPLICATIONS
D Disk Array (RAID)
D Storage Area Networks (SAN)
D Network Attached Storage (NAS)
D SCSI Cable
D Server and Workstation
D Industrial Computers
D High-End Personal Computers
DESCRIPTION
The SiP5630 provides active bus termination suitable for all
SCSI bus operational modes from SCSI-1 through SPI-4
(Ultra 320). The termination includes impedance matching of
the SCSI bus to minimize signal reflections from the end of the
bus, as well as required SCSI bus biasing for either S/E (Single
Ended) or LVD (Low Voltage Differential) operation.
The SiP5630 has nine (9) output channels (T1-T9). Each
output channel provides termination for one SCSI data signal,
parity signal or control signal. Two SiP5630 ICs provide
complete termination for a narrow SCSI Bus; three ICs provide
complete termination for a wide SCSI bus.
The SiP5630 senses the operational state of the SCSI bus via
the DIFFSENS bus signal, and automatically switches to S/E
or LVD operation as required. It cannot be used on an HPD
(High Power Differential) SCSI bus, and goes into high
impedance mode when the voltage on the DIFFSENS line
indicates HPD operation. The SiP5630 also presents high
impedance to the SCSI bus if the DISABLE pin is asserted, or
if TERMPWR is removed from the IC.
The SiP5630 is available in a lead (Pb)-free QSOP-36
package for operation over the temperature range of 0 to
70
_C.
FUNCTIONAL BLOCK DIAGRAM
See
Functional Diagrams
(Page 6) for detailed descriptions
of SCSI Terminator Impedance
Circuits in LVD and S/E modes of
operation.
17
21
35
34
33
36
Heat Sink GND Pins
GND
REG
1.3 V
8
9
10
26
27
28
1
18
Enable
Current Limited
Source/Sink
Regulator
Comparators
V t 0.5 = S/E
0.7 t V t1.9 = LVD
V u 2.4 = HPD
HPD
LVD
S/E TERMPWR
20
19
5
4
32
31
Current Limited
Source/Sink
Regulator
Mode Control And
Enable/Disable
Circuitry
SCSI
Terminator
Impedance
Circuits
10 mA
MODE
DISABLE
DIFFS
MSTR/SLV
T1N
T1P
T9P
T9N
SiP5630
Vishay Siliconix
New Product
www.vishay.com
2
Document Number: 73007
S-41263--Rev. A, 05-Ju1-04
TYPICAL APPLICATION DIAGRAM
T1N
T1P
T9P
T9N
DIFFS
50 kW
MODE
TERMPWR
MSTR/SLV
DISABLE
REG
GND
4.7 mF
4.7 mF
T1N
T1P
T9P
T9N
DIFFS
50 kW
MODE
TERMPWR
MSTR/SLV
DISABLE
REG
GND
4.7 mF
4.7 mF
T1N
T1P
T9P
T9N
DIFFS
MODE
TERMPWR
MSTR/SLV
DISABLE
REG
GND
4.7 mF
T1N
T1P
T9P
T9N
DIFFS
MODE
TERMPWR
MSTR/SLV
DISABLE
REG
GND
4.7 mF
T1N
T1P
T9P
T9N
DIFFS
MODE
TERMPWR
MSTR/SLV
DISABLE
REG
GND
4.7 mF
T1N
T1P
T9P
T9N
DIFFS
MODE
TERMPWR
MSTR/SLV
DISABLE
REG
GND
4.7 mF
SiP5630
SiP5630
SiP5630
SiP5630
SiP5630
SiP5630
SCSI BUS
TERMPWR
4.7 mF
4.7 mF
GROUND
DIFFSENS
LOW BYTE DATA (8) + PARITY
HIGH BYTE DATA (8) + PARITY
CONTROL LINES (9)
D
D
DD
D
DD
D
D
D
D
DD
D
DD
D
D
SiP5630
Vishay Siliconix
New Product
Document Number: 73007
S-41263--Rev. A, 05-Ju1-04
www.vishay.com
3
ABSOLUTE MAXIMUM RATINGS (ALL VOLTAGES REFERENCED TO GND = 0 V)
TERMPWR
6 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TXN, TXP
-0.3 to 6 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
MODE, DISABLE, M/S, STATUS
-0.3 to 6 V
. . . . . . . . . . . . . . . . . . . . . . . . . .
Storage Temperature
-65 to 125 _C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Junction Temperature
150 _C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Stresses beyond those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation
of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating
conditions for extended periods may affect device reliability.
RECOMMENDED OPERATING RANGE (ALL VOLTAGES REFERENCED TO GND = 0 V)
TERMPWR
2.7 V to 5.25 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating Temperature Range (T
A)
)
0 to 70 _C
. . . . . . . . . . . . . . . . . . . . . . . .
SPECIFICATIONS
Test Conditions Unless Specified
Limits
Parameter
Symbol
TERMPWR = 2.7 to 5.25 V, DISABLE = 0 V
T
A
= T
J
= 0 to 70 _C
Min
a
Typ
b
Max
a
Unit
SCSI Channels (T1 to T9), LVD Operation
Differential Impedance
Z
DIFF
100
105
110
W
Common Mode Impedance
Z
CM
MODE = 1 3 V
120
140
160
W
Differential Failsafe Bias
V
DIFF
MODE = 1.3 V
100
112
125
mV
Common Mode Bias
V
CM
1.15
1.25
1.35
V
SCSI Channels (T1 to T9), S/E Operation
Impedance
Z
S/E
MODE = 0 V
100
108
116
W
Bias Voltage
V
S/E
MODE = 0 V
2.5
2.7
3.0
V
Output Current
I
S/E
MODE = 0 V
Channel Voltage = 0.2 V
-25.4
-23
-20.5
mA
Output Current
I
S/E
MODE = 0 V
Channel Voltage = 0.5 V
-22.4
mA
GND Driver Impedance
Z
GS
MODE = 0 V, I
TEST
= 10 mA
30
60
W
SCSI Channels (T1 to T9), Termination Disabled
Channel Leakage
c
I
L
Channel Voltage = 0 to 5 V
-500
0
500
nA
Channel Capacitance
c, d
C
T
Referenced to GND
3
pF
SCSI Regulator, LVD Mode
Output Voltage
REG
(LVD)
0.5 V v V
CM
v 2.0 V
e
1.15
1.25
1.35
V
Source Current
I
SO(LVD)
REG = 0 V
-800
-450
-250
mA
Sink Current
I
SI(LVD)
REG = 4 V
200
300
800
mA
SCSI Regulator, S/E Mode
Output Voltage
REG
(S/E)
0.2 V v V
CM
v 4.0 V
f
2.5
2.7
3.0
V
Source Current
I
SO(S/E)
REG = 0 V
-800
-450
-250
mA
Sink Current
I
SI(S/E)
REG = 4 V
200
300
800
mA
DIFFSENS Regulator
Output Voltage
V
DIFFS
-5 mA v I
DIFFS
v 50 mA
1.2
1.3
1.4
V
Source Current
I
SO(DIFFS)
V
DIFFS
= 0 V
-15
-8
-5
mA
Sink Current
I
SI(DIFFS)
V
DIFFS
= 2.75 V
50
100
200
mA
DISABLE Input
Input Threshold
V
TH(DIS)
0.8
1.0
1.2
V
Input Current
I
IN(DIS)
0 V v V
DISABLE
v 1.2 V
-30
-10
-3
mA
Input Current
I
IN(DIS)
V
DISABLE
u 1.2 V
-30
0
10
mA
SiP5630
Vishay Siliconix
New Product
www.vishay.com
4
Document Number: 73007
S-41263--Rev. A, 05-Ju1-04
SPECIFICATIONS
Limits
Test Conditions Unless Specified
TERMPWR = 2.7 to 5.25 V, DISABLE = 0 V
T
A
= T
J
= 0 to 70 _C
Parameter
Unit
Max
a
Typ
b
Min
a
Test Conditions Unless Specified
TERMPWR = 2.7 to 5.25 V, DISABLE = 0 V
T
A
= T
J
= 0 to 70 _C
Symbol
MODE Input
S/E to LVD Threshold
V
TH(S/E)
0.5
0.6
0.7
V
LVD to HPD Threshold
V
TH(HPD)
1.9
2.1
2.4
V
Input Current
I
IN(MODE)
0 Vv V
MODE
v 5.25 V
-1
0
1
mA
MASTER/SLAVE Input
TERMPWR = 2.7 V
0.8
1.4
1.9
Input Threshold
V
TH(M/S)
TERMPWR = 3.3 V
1
1.7
2.3
V
p
TH(M/S)
TERMPWR = 5.25 V
1.5
2.6
3.7
Input Current
I
IN(M/S)
0 Vv V
M/S
v TERMPWR
-1
0
1
mA
STATUS Output Pins (LVD, S/E and HPD)
Source Current
I
SO(STAT)
TERMPWR = 2.7 V, V
PIN
= 2.4 V
-10
-5
mA
Sink Current
I
SI(STAT)
V
PIN
= 0.4 V
3
6
mA
THERMAL Shutdown
Shutdown Temperature
d
T
OFF
Rising Temperature
160
_C
Hysteresis
d
T
HYS
10
_C
TERMPWR Supply
LVD Mode
I
DD(LVD)
MODE = 1.3 V, Channels Unloaded
20
30
S/E Mode
I
DD(S/E)
MODE = 0 V, Channels Unloaded
10
20
mA
HPD Mode
I
DD(HPD)
MODE = 3 V
10
20
Disabled Mode
I
DD(DIS)
DISABLE = 3 V
500
1000
mA
Notes
a.
The algebraic convention whereby the most negative value is a minimum and the most positive a maximum is used in this data sheet.
b.
Typical values are for DESIGN AID ONLY, not guaranteed nor subject to production testing.
c.
MODE = 3 V and/or DISABLE = 3 V and/or TERMPWR = 0 V.
d.
Guaranteed by design, not subject to production test.
e.
V
CM
applied simultaneously to Line PLUS and Line MINUS pins of all SCSI channels T1-T9.
f.
V
CM
applied simultaneously to Line MINUS pins of all SCSI channels T1-T9.
SiP5630 (QSOP-36)
T1N
T2N
T5N
1
TERMPWR
36
REG
2
HPD
35
N/C
3
LVD
34
N/C
4
S/E
33
T1P
5
T9N
32
6
T9P
31
T2P
7
30
T8N
8
T8P
29
H/S GND
9
H/S GND
28
H/S GND
10
H/S GND
27
H/S GND
11
H/S GND
26
T3P
12
T7N
25
T3N
13
T7P
24
T4P
14
T6N
23
T4N
15
T6P
22
T5P
16
MODE
21
17
DIFFS
20
DISABLE
18
MSTR/SLV
19
GND
Top View
SiP5630
Vishay Siliconix
New Product
Document Number: 73007
S-41263--Rev. A, 05-Ju1-04
www.vishay.com
5
PIN CONFIGURATION AND ORDERING INFORMATION
ORDERING INFORMATION
Part Number
Temperature Range
Marking
SiP5630CG-T1--E3
0 to 70_C
SiP5630CG
PIN DESCRIPTION
Pin
Name
Function
1
REG
SCSI Regulator Output. Connect a 4.7-mF bypass capacitor from this pin to GND.
2, 3
N/C
No Connect.
4, 6, 11, 13,15, 22,
24, 29, 31
TXP; X = 1...9
Positive Terminator Channel Pins. Provide positive signal line termination in LVD operation, and are connected to
GND through low impedance in S/E operation. In HPD, DISABLE, or Power Off condition these pins present high
impedance to the SCSI Bus.
5, 7, 12, 14, 16, 23,
25, 30, 32
TXN; X = 1...9
Negative Terminator Channel Pins. Provide negative signal line termination in LVD operation, and line termination for
S/E operation. In HPD, DISABLE, or Power Off condition these pins present high impedance to the SCSI Bus.
8, 9, 10, 26, 27, 28
H/S GND
Heat Sink Ground. Should be connected to as large a grounded heat sink area on the PC board as is practical.
17
DISABLE
Chip Disable. There is a small (nominal 10 mA) pull up current on this pin. Pull this pin to GND to enable Bus
Termination. When this pin is left floating or pulled high all SCSI channel pins present high impedance to the SCSI
Bus, and the SCSI Regulator and DIFFSENS regulator are both disabled.
18
GND
Electrical ground connection for the terminator IC. Connect to the ground lines of the SCSI Bus
19
MSTR/SLV
Master/Slave. If this pin is tied to TERMPWR the output of the 1.3-V regulator for DIFFSENS is enabled. If this pin is
tied to GND the output of the 1.3-V regulator for DIFFSENS is inhibited.
20
DIFFS
DIFFSENS Regulator Output. Connect to the DIFFSENS line of the SCSI Bus to bias the mode selection function.
21
MODE
SCSI MODE Select Pin. Connect to the DIFFSENS line of the SCSI Bus to sense the present mode of operation on
the Bus. Decouple MODE from the DIFFSENS signal with a 50-kW/4.7mF low pass filter to meet SPI-3 mode change
requirements.
33, 34, 35
S/E, LVD, HPD
Status Output Pins. Respective pins are high when the terminator detects the corresponding mode of operation on
the SCSI Bus, and low otherwise.
36
TERMPWR
Power for the Terminator IC. Connect to the TERMPWR lines on the SCSI Bus and decouple with a 4.7-mF capacitor
to GND at the IC.
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