Texas Instruments UCC5630MWPTR, UCC5630MWP, UCC5630FQPTR, UCC5630FQP Datasheet
UCC5630
01/99
FEATURES
• Auto Selection Multi-Mode Single
Ended or Low Voltage Differential
Termination
• 2.7V to 5.25V Operation
• Differential Failsafe Bias
• Thermal Packaging for Low Junction
Temperature and Better MTBF
• Master/Slave Inputs
• Supports Active Negation
• Standby (Disable Mode) 5µA
• 3pF Channel Capacitance
Low Voltage Differential (LVD/SE) SCSI 9 Line Terminator
8HS/GND
1
REG
DIFFSENS
5 L1–
4 L1+
32 L9–
31 L9+
125
+50mV TO +62.5mV
SWITCHES UP ARE SINGLE
ENDED SWITCHES DOWN ARE
LOW VOLTAGE DIFFERENTIAL
0.7 > 0.6V
2.2 > 1.9V
SE GND
SWITCH
52
110
52
125
+50mV TO +62.5mV
52
110
52
21
DIFFB
REF 2.7V
REF 1.25V
9
10
26
27
28
18
HS/GND
HS/GND
HS/GND
HS/GND
HS/GND
GND
19MSTR/SLV
36TRMPWR
+V
DD
REEF 1.3V
1.3V ± –0.1V
20
SOURCE 5 < 15mA
SINK 200µAMAXIMUM(NOISELOAD)
34 LVD
33 SE
35
HIPD
0.1µF
20k
LOW
FREQUENCY
FILTER
50Hz – 60Hz
SOURCE ONLY FROM TRMPWR AND THE ENABLED TERMINATORS
OPEN CIRCUIT ON POWER OFF
OR
OPEN CIRCUIT IN A DISABLED
TERMINATOR MODE
SOURCE/SINK
REGULATOR
HIGH IMPEDANCE
RECEIVER EVEN
WITH POWER OFF
17DISCNCT
4.7µF
MWP 36 PINOUT
BLOCK DIAGRAM
UDG-98049
DESCRIPTION
The UCC5630 Multi-Mode Low Voltage Differential and Single Ended Terminator is both a single ended terminator and a low voltage differential terminator for the transition to the next generation SCSI Parallel Interface
(SPI-2). The low voltage differential is a requirement for the higher speeds
at a reasonable cost and is the only way to have adequate skew budgets.
The transceivers can be incorporated into the controller, unlike SCSI high
power differential (EIA485) which requires external transceivers. Low Voltage differential is specified for Fast-40 and Fast-80, but has the potential of
speeds up to Fast-320. The UCC5630 is SPI-2, SPI and Fast-20 compliant.
Consult SSOP-36 and LQFP-48 Package Diagram for exact dimensions.
The UCC5630 can not be used with SCSI high voltage differential (HVD)
EIA485. It will shut down when it sees high power differential to protect the
bus. The pinning for high power differential is not the same as LVD or single ended and the bias voltage, current and power are also different for
EIA485 differential.
Circuit Design Patented
2
UCC5630
L3+
HS/GND
L9–
L9+
L8–
TRMPWR
N/C
N/C
HS/GND
L2–
HS/GND
L1+
L1–
L2+
REG
HS/GND
L3–
L8+
HS/GND
HS/GND
L4+
L4–
14
13
12
11
10
9
8
7
6
5
4
3
2
1
23
24
25
26
27
28
29
30
31
32
33
34
35
36
18
17
16
15
DIFF B
MSTR/SLV
DIFSENS
19
20
21
22L5+
L5–
DISCNCT
GND
L7–
L7+
L6–
L6+
HIPD
LVD
SE
CONNECTION DIAGRAM
SSOP-36 (Top View)
MWP Package
ABSOLUTE MAXIMUM RATINGS
TRMPWR Voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6V
Signal Line Voltage . . . . . . . . . . . . . . . . . . . . . 0V to TRMPWR
Package Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . 2W
Storage Temperature . . . . . . . . . . . . . . . . . . . –65°C to +150°C
Junction Temperature. . . . . . . . . . . . . . . . . . . –55°C to +150°C
Lead Temperature (Soldering, 10sec.) . . . . . . . . . . . . . +300°C
All voltages are with respect to PIN1.Currents are positive into,
negative out of the specified terminal. Consult Packaging Section of the Databook for thermal limitations and considerations
of packages.
12
11
10
9
13
8
7
6
5
4
3
2
1
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
313233
34
35
36
48
47
46
45
44
43
42
41
40
39
38
37
MSTR/SLV
DIFSENS
DIFFB
N/C
HS GND
HS GND
L7–
L7+
L6–
L6+
HS/GND
HS/GND
HS/GND
L5+
L5–
DISCNCT
GND
HS/GND
HS/GND
L4+
L4–
L3+
L3–
NC
L2+
L2–
L1+
L1–
HS/GND
HS/GND
NC
REG
NC
NC
HS/GND
HS/GND
HS/GND
L9–
L9+
L8–
L8+
HS/GND
HS/GND
LVD
SE
TERMPWR
HIPD
NC
LQFP-48 (Top View)
FQP Package
RECOMMENDED OPERATING CONDITIONS
TRMPWR Voltage . . . . . . . . . . . . . . . . . . . . . . . 2.7V TO 5.25V
ELECTRICAL CHARACTERISTICS: Unless otherwise specified, T
A
= 0°C to 70°C, TRMPWR = 3.3V.
PARAMETER TEST CONDITIONS MIN TYP MAX UNITS
TRMPWR Supply Current Section
TRMPWR Supply Current 20 mA
Disable Terminator, in DISCNCT mode. 35 µA
Regulator Section
1.25V Regulator LVD Mode 1.15 1.25 1.35 V
1.25V Regulator Source Current LVD Mode, Differential Sense Floating –80 –100 mA
1.25V Regulator Sink Current LVD Mode, Differential Sense Floating 80 100 mA
1.3V Regulator DIFSENS 1.2 1.3 1.4 V
1.3V Regulator Source Current DIFSENS –5 –15 mA
1.3V Regulator Sink Current DIFSENS 50 200 µA
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