TPL0401A_16 Datasheet, PDF (1/22 Pages) Texas Instruments – 128 TAPS Single Channel Digital Potentiometer with I2C Interface

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TPL0401A
TPL0401B
TPL0401C
SLIS144A – SEPTEMBER 2011 – REVISED MARCH 2012
128 TAPS Single Channel Digital Potentiometer with I²C Interface
Check for Samples: TPL0401A, TPL0401B, TPL0401C
FEATURES
1
• Single Channel, 128-Position Resolution
• 10 kΩ End-to-End Resistance Options
• Low Temperature Coefficient: 35 ppm/°C
• I²C Serial Interface
• 2.7 V to 5.5 V Single-Supply Operation
• ±20% Resistance Tolerance
• 'A' and 'B' Versions Have Different I²C
Addresses
• 'L' Terminal of 'A' and 'B' version is internal
and connected To GND
• ‘H’ Terminal of ‘C’ Version is Internal and
Floating
• Operating Temperature –40°C to 125°C
• Available in Industry Standard SC70 Packages
• ESD Performance Tested per JESD 22
– 2000 V Human Body Model
(A114-B, Class II)
APPLICATIONS
• Low Power DDR3 Voltage Reference
• Adjustable Power Supplies
• Adjustable Gain Amplifiers and Offset
Trimming
• Precision Calibration of Set Point Thresholds
• Sensor Trimming and Calibration
• Mechanical Potentiometer Replacement
DESCRIPTION
The TPL0401 is a single channel, linear-taper digital
potentiometer with 128 wiper positions. The
TPL0401A/B have the low terminal internal and
connected to GND. The position of the wiper can be
adjusted using an I²C interface. The TPL0401 is
available in a 6-pin SC-70 package with a specified
temperature range of –40°C to 125°C. The part has a
10k end-to-end resistance and can operate with a
supply voltage range of 2.7V to 5.5V. This kind of
product is widely used in setting the voltage reference
for low power DDR3 memory.
The TPL0401A/B have the Low Terminal internal and
connected to GND. The TPL0401C has the High
Terminal internal and floating.
SC-70 DCK PACKAGE
(TOP VIEW)
VDD
GND
SCL
1
6
2
5
3 L4
TPL0401A/B
H
W
SDA
VDD
GND
SCL
P^{132 REHVIE456W}
L
W
SDA
TPL0401C
T_A
PACKAGE ⁽¹⁾
–40°C to 125°C SC70 – DCK
Tape and
Reel
ORDERING INFORMATION
ORDERABLE PART
NUMBER
END-TO-END
RESISTANCE
TPL0401A-10DCKR
10-kΩ
TPL0401B-10DCKR
10-kΩ
TPL0401C-50DCKR
50-kΩ
I²C ADDRESS
0101110
0111110
0101110
TOP-SIDE
MARKING
7TV
7UV
TBD
(1) Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at
www.ti.com/sc/package.
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2011–2012, Texas Instruments Incorporated