Texas Instruments UCC5510MWP, UCC5510MWPTR Datasheet
UCC5510
SLUS332A - OCTOBER 1999
FEATURES
•
Auto Selection Multi-Mode Single
Ended or Low Voltage Differential
Termination
•
3.0V to 5.25V Operation
•
Differential Failsafe Bias
•
Thermal Packaging for Low Junction
Temperature and Better MTBF
•
Master/Slave Inputs
•
Supports Active Negation
•
3pF Channel Capacitance
Low Voltage Differential (LVD/SE) SCSI 9 Line Terminator
1
REG
DIFFSENS
5L1–
4L1+
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
DEVICE MODE
SELECT LOG IC
21DIFFB
REF 2.7V
REF 1.25V
19MSTR/SLV
38TRMPWR +VDD
REF 1.3V
1.3V ± –0.1V
20
SOURCE 5 < 15mA
SINK 200µA MAXIMUM (NOISE LOAD)
8HS/GND
28
27
26
10
9
18
HS/GND
HS/GND
HS/GND
HS/GND
HS/GND
GND
BLOCK DIAGRAM
UDG-98033
DESCRIPTION
The UCC5510 Multi-Mode Low Voltage Differential and Single Ended
Terminator is specially designed for automatic termination of SingleEnded or Low Voltage Differential SCSI Bus.The Multi-Mode operation of
this device allows for a transition system design for the next generation
SCSI Parallel Interface (SPI-2). Compliant with SPI-2, with SPI and Fast20 the UCC5510 incorporates all the functions necessary to properly ter
-
minate the SCSI Bus and has internal thermal shut down and short cir
-
cuit limiting.
Circuit Design Patented
2
UC5510
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
DIFFSENS
19
20
21
22L5+
L5–
N/C
GND
L7–
L7+
L6–
L6+
N/C
N/C
N/C
CONNECTION DIAGRAM
SSOP-36 (Top View)
MWP Package
ELECTRICAL CHARACTERISTICS: Unless otherwise specified, TA = 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 DIFFSENS 1.2 1.3 1.4 V
1.3V Regulator Source Current DIFFSENS –5 –15 mA
1.3V Regulator Sink Current DIFFSENS 50 200 µA
2.7V Regulator Single Ended Mode 2.5 2.7 3 V
2.7V Regulator Source Current Single Ended Mode –200 –400 –800 mA
2.7V Regulator Sink Current Single Ended Mode 100 200 400 mA
2.7V Regulator Dropout Voltage V
TRMPWR
– (V
REG
– 3.0 Min) 200 mV
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
RECOMMENDED OPERATING CONDITIONS
TRMPWR Voltage . . . . . . . . . . . . . . . . . . . . . . . 3.0V TO 5.25V
All voltages are with respect to pin 1.Currents are positive into,
negative out of the specified terminal. Consult Packaging Sec
tion of the Databook for thermal limitations and considerations of
packages.
Loading...