CAT5172(2009) 查看數據表（PDF） - ON Semiconductor
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CAT5172 Datasheet PDF : 10 Pages
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CAT5172
VDD
CS
SDI
SPI
INTERFACE
A
CLK
W
WIPER
B
REGISTER
GND
Figure 1. Functional Block Diagram
Table 1. ORDERING INFORMATION
Part Number
Resistance
Temperature Range
Package
Shipping†
CAT5172TBI−50GT3
CAT5172TBI−00GT3
50 kW
100 kW
−40°C to 85°C
SOT−23−8
(Pb−Free)
3000/Tape & Reel
3000/Tape & Reel
†For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging
Specifications Brochure, BRD8011/D.
Table 2. PIN FUNCTION DESCRIPTION
Pin No.
Pin Name
Description
1
W
Resistor’s Wiper Terminal.
2
VDD
Positive Power Supply.
3
GND
Digital Ground.
4
CLK
Serial Clock Input. Positive edge triggered.
5
SDI
Serial Data Input.
6
CS
Chip Select Input, Active Low. When CS returns high, data will be loaded into the DAC register.
7
B
Bottom Terminal of resistive element.
8
A
Top Terminal of resistive element.
Table 3. ABSOLUTE MAXIMUM RATINGS (Note 1)
Rating
Value
Unit
VDD to GND
VA, VB, VW to GND
IMAX
Digital Inputs and Output Voltage to GND
−0.3 to 6.5
V
VDD
±20
mA
0 to 6.5
V
Operating Temperature Range
−40 to +85
°C
Maximum Junction Temperature (TJMAX)
Storage Temperature
150
°C
−65 to +150
°C
Lead Temperature (Soldering, 10 sec)
300
°C
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the
Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect
device reliability.
1. Maximum terminal current is bounded by the maximum current handling of the switches, maximum power dissipation of the package, and
maximum applied voltage across any two of the A, B, and W terminals at a given resistance.
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