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| 型號： | TSC2003IPWRQ1 |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 消費家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PDSO16 |
| 封裝： | GREEN, PLASTIC, TSSOP-16 |
| 文件頁數(shù)： | 8/28頁 |
| 文件大?。?/td> | 560K |
| 代理商： | TSC2003IPWRQ1 |
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°K =
q
k 1n(N)
V
(1)
Battery Measurement
VDD
VBAT
7.5k
2.5k
DC/DC
Converter
Battery
0.5V
to
6.0V
0.125V to 1.5V
2.7V
+
A/D
Converter
SBAS454 – DECEMBER 2008 ........................................................................................................................................................................................... www.ti.com
The equation to solve for °K is shown in Equation 1:
Where:
ΔV V(I91) – V(I1) (in mV)
∴ °K 2.573 × ΔV°K/mV
°C = 2.573 ×
ΔV(mV) – 273°K
NOTE:
The bias current for each diode temperature measurement is only turned on during
the acquisition mode, and, therefore, does not add any noticeable increase in power,
especially if the temperature measurement only occurs occasionally.
An added feature of the TSC2003 is the ability to monitor the battery voltage on the other side of the voltage
regulator (dc/dc converter), as shown in Figure 9. The battery voltage can vary from 0.5 V to 6 V, while the
voltage regulator maintains the voltage to the TSC2003 at 2.7 V, 3.3 V, etc. The input voltage (VBAT1 or VBAT2) is
divided down by 4 so that a 6-V battery voltage is represented as 1.5 V to the ADC. The simplifies the
multiplexer and control logic. To minimize the power consumption, the divider is only on during the sample period
which occurs after control bits C3 = 0, C2 = 0, C1 = 0, and C0 = 1 (VBAT1) or C3 = 0, C2 = 1, C1 = 0, and C0 = 1
(VBAT2) are received. See Table 1 and Table 2 for the relationship between the control bits and configuration of
the TSC2003.
Figure 9. Battery Measurement Functional Block Diagram
16
Copyright 2008, Texas Instruments Incorporated
Product Folder Link(s): TSC2003-Q1
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PDF描述 |
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| TSC2003IZQCT | 2-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PBGA48 |
| TSC2003IPWT | 2-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO16 |
| TSC2003I | 3-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO16 |
| TSC2003IR | 3-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO16 |
| TSC2008IRGVR | SPECIALTY CONSUMER CIRCUIT, PQCC16 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TSC2003IR | 功能描述:IC TOUCH SCREEN CNTRLLR 16-TSSOP RoHS:否 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 觸摸屏控制器 系列:- 標(biāo)準(zhǔn)包裝:96 系列:- 類型:- 觸摸面板接口:- 輸入數(shù)/鍵:- 分辨率（位）:- 評估套件:* 數(shù)據(jù)接口:- 數(shù)據(jù)速率/采樣率 (SPS，BPS):- 電壓基準(zhǔn):- 電源電壓:- 電流 - 電源:- 工作溫度:- 安裝類型:表面貼裝 封裝/外殼:16-TSSOP（0.173"，4.40mm 寬） 供應(yīng)商設(shè)備封裝:16-TSSOP 包裝:帶卷 (TR) |
| TSC2003IZQCR | 功能描述:觸摸屏轉(zhuǎn)換器和控制器 4-wire Touch Screen Controller RoHS:否 制造商:Microchip Technology 類型:Resistive Touch Controllers 輸入類型:3 Key 數(shù)據(jù)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 |
| TSC2003-Q1 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:I2C TOUCH SCREEN CONTROLLER |
| TSC2004 | 制造商:BB 制造商全稱:BB 功能描述:1.2V to 3.6V, 12-Bit, Nanopower, 4-Wire TOUCH SCREEN CONTROLLER with I2C⑩ Interface |
| TSC2004_12 | 制造商:BB 制造商全稱:BB 功能描述:1.2V to 3.6V, 12-Bit, Nanopower, 4-Wire |
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