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| CAT5172_13 Datasheet, PDF (2/10 Pages) ON Semiconductor – 256‐position SPI Compatible Digital Potentiometer (POT) | |||
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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
Shippingâ
CAT5172TBIâ50GT3
CAT5172TBIâ00GT3
50 kW
100 kW
â40ï°C to 85ï°C
SOTâ23â8
(PbâFree)
3000/Tape & Reel
3000/Tape & Reel
â 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.
1. For detailed information and a breakdown of device nomenclature and numbering systems, please see the ON Semiconductor Device
Nomenclature document, TND310/D, available at www.onsemi.com.
Table 2. PIN FUNCTION DESCRIPTION
Pin No.
Pin Name
Description
1
W
Resistorâs 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 2)
Rating
Value
Unit
VDD to GND
VA, VB, VW to GND
IMAX
Digital Inputs and Output Voltage to GND
â0.3 to 6.5
V
VDD
ï±20
mA
0 to 6.5
V
Operating Temperature Range
â40 to +85
ï°C
Maximum Junction Temperature (TJMAX)
Storage Temperature
150
ï°C
â65 to +150
ï°C
Lead Temperature (Soldering, 10 sec)
300
ï°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.
2. 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.
http://onsemi.com
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