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PDF DS3502 Data sheet ( Hoja de datos )

Número de pieza DS3502
Descripción I2C POT
Fabricantes Maxim Integrated 
Logotipo Maxim Integrated Logotipo



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No Preview Available ! DS3502 Hoja de datos, Descripción, Manual

Rev 1; 3/09
High-Voltage, NV, I2C POT
General Description
The DS3502 is a 7-bit, nonvolatile (NV) digital poten-
tiometer (POT) featuring an output voltage range of up to
15.5V. Programming is accomplished by an I2C-compat-
ible interface, which can operate at speeds of up to
400kHz. External voltages are applied at the RL and RH
inputs to define the lowest and highest potentiometer
outputs.
Applications
TFT-LCD VCOM Calibration
Instrumentation and Industrial Controls
Mechanical POT Replacement
Pin Configuration and Typical Operating Circuit appear at
end of data sheet.
Features
128 Wiper Tap Points
Full-Scale Resistance: 10kΩ
I2C-Compatible Serial Interface
Address Pins Allow Up to Four DS3502s to Share
the Same I2C Bus
Digital Operating Voltage: 2.5V to 5.5V
Analog Operating Voltage: 4.5V to 15.5V
Operating Temperature: -40°C to +100°C
10-Pin µSOP Package
Ordering Information
PART
TEMP RANGE
PIN-PACKAGE
DS3502U+
-40°C to +100°C 10 μSOP
DS3502U+T&R
-40°C to +100°C 10 μSOP
+Denotes a lead(Pb)-free/RoHS-compliant package.
T&R = Tape and reel.
Functional Diagram
SDA 7-BIT
SCL WIPER REGISTER
127
126
RH
DS3502
7-BIT
NONVOLATILE MEMORY
125
DECODER
LEVEL SHIFTER
2
1
CONTROL CIRCUITRY
AND
A1 ADDRESS DECODE
A0
0
RL
RW
________________________________________________________________ Maxim Integrated Products 1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
Free Datasheet http://www.datasheet4u.com/

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DS3502 pdf
High-Voltage, NV, I2C POT
(TA = +25°C, unless otherwise noted.)
SUPPLY CURRENT
vs. SUPPLY VOLTAGE
1.8
SDA = SCL = VCC, V+ = 15.5V
1.6 RW, RH, AND RL ARE FLOATING
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
2.5 3.0 3.5 4.0 4.5 5.0
SUPPLY VOLTAGE (V)
5.5
1.0
0.8
0.6
0.4
0.2
0
-0.2
-0.4
-0.6
-0.8
-1.0
0
INTEGRAL NONLINEARITY
vs. POTENTIOMETER SETTING
20 40 60 80 100 120
POTENTIOMETER SETTING (DEC)
Typical Operating Characteristics
SUPPLY CURRENT
vs. TEMPERATURE
1.5
1.4
1.3
1.2
1.1
SDA = SCL = VCC = 5V, V+ = 15.5V
RW, RH, AND RL ARE FLOATING
1.0
-40 -20 0 20 40 60
TEMPERATURE (°C)
80 100
0.5
0.4
0.3
0.2
0.1
0
-0.1
-0.2
-0.3
-0.4
-0.5
0
DIFFERENTIAL NONLINEARITY
vs. POTENTIOMETER SETTING
20 40 60 80 100 120
POTENTIOMETER SETTING (DEC)
NAME
SDA
GND
VCC
A1, A0
RH
RW
RL
V+
SCL
Pin Description
PIN FUNCTION
1 I2C Serial Data. Input/output for I2C data.
2 Ground Terminal
3 Supply Voltage Terminal
4, 5 Address Select Inputs. Determines I2C slave address. Slave address is 01010A1A0X. (See the
Slave Address Byte and Address Pins section for details).
6 High Terminal of Potentiometer
7 Wiper Terminal of Potentiometer
8 Low Terminal of Potentiometer
9 Wiper Bias Voltage
10 I2C Serial Clock. Input for I2C clock.
_______________________________________________________________________________________ 5
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DS3502 arduino
High-Voltage, NV, I2C POT
Revision History
REVISION REVISION
NUMBER DATE
DESCRIPTION
0 1/08 Initial release.
1
3/09
Changed the maximum value of the power-up recall voltage in the Electrical
Characteristics table from 2.6V to 2.4V.
PAGES
CHANGED
2
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are
implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________ 11
© 2009 Maxim Integrated Products
Maxim is a registered trademark of Maxim Integrated Products, Inc.
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