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| 型号： | TPL0102-100PWR |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 数字电位计 |
| 英文描述： | DIGITAL POTENTIOMETER, PDSO14 |
| 封装： | PLASTIC, TSSOP-14 |
| 文件页数： | 4/24页 |
| 文件大小： | 586K |
| 代理商： | TPL0102-100PWR |
SLIS134A
– MARCH 2011 – REVISED MARCH 2011
PRINCIPLES OF OPERATION
The TPL0102 is a two channel, linear-taper digital potentiometer with 256 wiper positions. Each potentiometer
can be used as a three-terminal potentiometer or as a two-terminal rheostat. The TPL0102-100 has an
end-to-end resistance of 100k
.
The TPL0102 has non-volatile memory (EEPROM) which can be used to store the wiper position. When the
device is powered down, the last value stored in the IVR register will be maintained in the non-volatile memory.
When power is restored, the contents of the IVR register are recalled and loaded into the corresponding WR
register to set the wipers to the initial position. The internal registers of the TPL0102 can be accessed using the
I2C interface.
The position of the wiper terminal is controlled by the value in the WR 8-bit register. When the WR contains all
zeroes, the wiper terminal W is closest to its L (Low) terminal. As the value of the WR increases from all zeroes
to all ones (255 decimal), the wiper moves monotonically from the position closest to L to the position closest to
H. At the same time, the resistance between W and L increases monotonically, whereas the resistance between
W and H decreases monotonically.
Potentiometer Pin Description
HA,HB,LA,LB
The high (HA, HB) and low (LA, LB) terminals of the TPL0102 are equivalent to the fixed terminals of a
mechanical potentiometer. The H and L terminals do not have any polarity restrictions, i.e. H can be at a higher
voltage than L, or L can be at a higher voltage than H. The WA and WB terminals are the wipers and equivalent
to the movable terminal of a mechanical potentiometer. The position of the wiper is set using the WR register.
With the WR register set to 255 decimal, the wiper is closest to the H terminal, and with the WR register set to 0,
the wiper is closest to the L terminal.
SDA, SCL
SDA is a bi-directional serial data input/output pin for I2C communication. SDA is an open drain output and
requires an external pull-up resistor.
SCL is the serial clock input for I2C communication. SCL requires an external pull-up resistor.
A0, A1, A2
These inputs are used to set the last three bits of the I2C address of the device. By using different values for A0,
A1, A2, up to eight TPL0102 devices can be used on the same I2C bus.
12
Copyright
2011, Texas Instruments Incorporated
Product Folder Link(s): TPL0102
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| TPL0102-100QPWREP | 功能描述:Digital Potentiometer 100k Ohm 2 Circuit 256 Taps I2C Interface 14-TSSOP 制造商:texas instruments 系列:- 包装:剪切带（CT） 零件状态:有效 圆锥:线性 配置:电位计 电路数:2 抽头数:256 电阻（欧姆）:100k 接口:I2C 存储器类型:非易失 电压 - 电源:2.7 V ~ 5.5 V，±2.25 V ~ 2.75 V 特性:可选地址 容差:±20% 温度系数（典型值）:92 ppm/°C 电阻 -?游标（欧姆）（典型值）:25 工作温度:-40°C ~ 125°C 封装/外壳:14-TSSOP（0.173"，4.40mm 宽） 供应商器件封装:14-TSSOP 标准包装:1 |
| TPL0102-100RUCR | 功能描述:数字电位计 IC 256 Taps Dual Ch Digital Pot RoHS:否 制造商:Maxim Integrated 电阻:200 Ohms 温度系数:35 PPM / C 容差:25 % POT 数量:Dual 每 POT 分接头:256 弧刷存储器:Volatile 缓冲刷: 数字接口:Serial (3-Wire, SPI) 描述/功能:Dual Volatile Low Voltage Linear Taper Digital Potentiometer 工作电源电压:1.7 V to 5.5 V 电源电流:27 uA 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:TQFN-16 封装:Reel |
| TPL0102EVM | 功能描述:数据转换 IC 开发工具 TPL0102 Eval Mod RoHS:否 制造商:Texas Instruments 产品:Demonstration Kits 类型:ADC 工具用于评估:ADS130E08 接口类型:SPI 工作电源电压:- 6 V to + 6 V |
| TPL0202-10 | 制造商:TI 制造商全称:Texas Instruments 功能描述:256-TAPS DUAL CHANNEL DIGITAL POTENTIOMETER WITH SPI INTERFACE AND NONVOLATILE MEMORY |
| TPL0202-10MRTER | 功能描述:数字电位计 IC 256 Taps,Dual Ch Dig Potentiometer RoHS:否 制造商:Maxim Integrated 电阻:200 Ohms 温度系数:35 PPM / C 容差:25 % POT 数量:Dual 每 POT 分接头:256 弧刷存储器:Volatile 缓冲刷: 数字接口:Serial (3-Wire, SPI) 描述/功能:Dual Volatile Low Voltage Linear Taper Digital Potentiometer 工作电源电压:1.7 V to 5.5 V 电源电流:27 uA 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:TQFN-16 封装:Reel |
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