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ON Semiconductor - 32-tap Digital Up/Down Control Potentiometer

Numéro de référence N57L5128
Description 32-tap Digital Up/Down Control Potentiometer
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N57L5128 fiche technique
N57L5128
32‐tap Digital Up/Down
Control Potentiometer (POT)
Description
The N57L5128 is a single digital POT designed as an electronic
replacement for mechanical potentiometers and trim pots. Ideal for
automated adjustments on high volume production lines, they are also
well suited for applications where equipment requiring periodic
adjustment is either difficult to access or located in a hazardous or
remote environment.
The N57L5128 contains a 32-tap series resistor array connected
between two terminals A and B. An up/down counter and decoder that
are controlled by two input pins, determines which tap is connected to
the wiper, W. Wiper-control of the N57L5128 is accomplished with
two input control pins, UP and DOWN. A high-to-low transition on
the UP input increments the wiper position and a high-to-low
transition on the DOWN input decrements the wiper position. The tap
position is not stored in memory. The wiper is always set to the mid
point, tap 15 at power up.
The digital POT can be used as a three-terminal resistive divider or
as a two-terminal variable resistor. Digital potentiometers bring
variability and programmability to a wide variety of applications
including control, parameter adjustments, and signal processing.
Features
32-position Linear Taper Potentiometer
Low Power CMOS Technology
Single Supply Operation: 2.5 V – 5.5 V
Discrete Step-up/Step-down Digital Control
Resistance Values: 10 kW, 50 kW and 100 kW
Available in SOT−23 8-lead Package
These Devices are Pb-Free, Halogen Free/BFR Free and are RoHS
Compliant
Applications
Automated Product Calibration
Remote Control Adjustments
Offset, Gain and Zero Control
Tamper-proof Calibrations
Contrast, Brightness and Volume Controls
Motor Controls and Feedback Systems
Programmable Analog Functions
www.onsemi.com
SOT−23
TB SUFFIX
CASE 527AK
PIN CONFIGURATION
UP
DOWN
A
GND
1
(Top View)
VCC
NC
B
W
PIN DESCRIPTIONS
Pin Name
UP
DOWN
Function
Step-Up Control
Step-Down Control
A Potentiometer High Terminal
GND
W
B
NC
Ground
Wiper Terminal
Potentiometer Low Terminal
Not Connected
VCC Supply Voltage
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 6 of this data sheet.
© Semiconductor Components Industries, LLC, 2016
August, 2016 − Rev. P0
1
Publication Order Number:
N57L5128/D

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