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參數資料
| 型號： | TSC2100IDARG4 |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 消費家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PDSO32 |
| 封裝： | GREEN, PLASTIC, TSSOP-32 |
| 文件頁數： | 16/76頁 |
| 文件大小： | 1143K |
| 代理商： | TSC2100IDARG4 |
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TSC2100
SLAS378 NOVEMBER 2003
www.ti.com
23
Differential
Code
300
350
400
450
500
40
20
0
2040
6080
Temperature °C
Figure 21. Typical Plot for Differential Measurement Method
Temperature measurement can only be done in host controlled mode.
Battery Measurement
An added feature of the TSC2100 is the ability to monitor the battery voltage on the other side of a voltage regulator (dc/dc
converter), as shown in Figure 22. The battery voltage can vary from 0.5 V to 6 V while maintaining the analog supply
voltage to the TSC2100 in the range of 2.7 V to 3.6 V. The input voltage (VBAT1 or VBAT2) is divided down by a factor of
6 so that a 6.0-V battery voltage is represented as 1.0 V to the ADC. In order to minimize the power consumption, the divider
is only on during the sampling of the battery input. If the battery conversion results in a ADC output code of B, the voltage
at the battery pin can be calculated as
Vbat = (B/2^N)*6*Vref
where N is the programmed resolution of ADC and Vref the programmed value of internal reference or the applied external
reference.
VBAT
10 k
DC/DC
Converter
VDD
+
Battery
2 k
GND
Figure 22. Battery Measurement Functional Block Diagram
For increased protection and robustness, TI recommends a minimum 100 resistor be added in series between the system
battery and the VBAT pin. The 100 resistor will cause an approximately 1% gain change in the battery voltage
measurement, which can easily be corrected in software when the battery conversion data is read by the operating system.
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相關代理商/技術參數 |
參數描述 |
|---|---|
| TSC2100IRHB | 功能描述:觸摸屏轉換器和控制器 Prog 4-Wire w/Ster Codec & Hdph/Spk Amp RoHS:否 制造商:Microchip Technology 類型:Resistive Touch Controllers 輸入類型:3 Key 數據速率:140 SPS 分辨率:10 bit 接口類型:4-Wire, 5-Wire, 8-Wire, I2C, SPI 電源電壓:2.5 V to 5.25 V 電源電流:17 mA 工作溫度:- 40 C to + 85 C 封裝 / 箱體:SSOP-20 |
| TSC2100IRHBG4 | 功能描述:觸摸屏轉換器和控制器 Prog 4-Wire w/Ster Codec & Hdph/Spk Amp RoHS:否 制造商:Microchip Technology 類型:Resistive Touch Controllers 輸入類型:3 Key 數據速率:140 SPS 分辨率:10 bit 接口類型:4-Wire, 5-Wire, 8-Wire, I2C, SPI 電源電壓:2.5 V to 5.25 V 電源電流:17 mA 工作溫度:- 40 C to + 85 C 封裝 / 箱體:SSOP-20 |
| TSC2100IRHBR | 功能描述:觸摸屏轉換器和控制器 Prog 4-Wire w/Ster Codec & Hdph/Spk Amp RoHS:否 制造商:Microchip Technology 類型:Resistive Touch Controllers 輸入類型:3 Key 數據速率:140 SPS 分辨率:10 bit 接口類型:4-Wire, 5-Wire, 8-Wire, I2C, SPI 電源電壓:2.5 V to 5.25 V 電源電流:17 mA 工作溫度:- 40 C to + 85 C 封裝 / 箱體:SSOP-20 |
| TSC2100IRHBRG4 | 功能描述:觸摸屏轉換器和控制器 Prog 4-Wire w/Ster Codec & Hdph/Spk Amp RoHS:否 制造商:Microchip Technology 類型:Resistive Touch Controllers 輸入類型:3 Key 數據速率:140 SPS 分辨率:10 bit 接口類型:4-Wire, 5-Wire, 8-Wire, I2C, SPI 電源電壓:2.5 V to 5.25 V 電源電流:17 mA 工作溫度:- 40 C to + 85 C 封裝 / 箱體:SSOP-20 |
| TSC2100IRHBRMULT1 | 制造商:Texas Instruments 功能描述: |
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