TSC2007-Q1 Texas instruments

TSC2007-Q1

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TSC2007-Q1

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Описание

The TSC2007-Q1 device is a very low-power touch screen controller designed to work with power-sensitive, automotive touch-screen displays. It contains a complete, ultra-low power, 12-bit, analog-to-digital (A-D) resistive touch screen converter, including drivers and the control logic to measure touch pressure. In addition to these standard features, the TSC2007-Q1 offers preprocessing of the touch screen measurements to reduce bus loading, thus reducing the consumption of host processor resources that can then be redirected to more critical functions. The TSC2007-Q1 supports an I2C serial bus and data transmission protocol in all three defined modes: standard, fast, and high-speed. It offers programmable resolution of 8 bits or 12 bits to accommodate different screen sizes and performance needs. The TSC2007-Q1 is available in a 16-pin TSSOP package. The TSC2007-Q1 is characterized for the –40°C to 85°C industrial temperature range.

Qualified for Automotive Applications
AEC-Q100 Test Guidance With the Following:
- Device Temperature Grade 3: –40°C to 85°C Ambient Operating Temperature Range
- Device HBM ESD Classification Level 3B
- Device CDM ESD Classification Level C6
4-Wire Touch-Screen Interface
Single 1.2-V to 3.6-V Supply or Reference
Ratiometric Conversion
Effective Throughput Rate:
- Up to 20 kHz (8-Bit) or 10 kHz (12-Bit)
Preprocessing to Reduce Bus Activity
I²C Interface Supports:
- Standard, Fast, and High-Speed Modes
Simple, Command-Based User Interface:
- TSC2003-Q1 Compatible
- 8-Bit or 12-Bit Resolution
On-Chip Temperature Measurement
Touch Pressure Measurement
Internal Detection of Screen Touch
For Pen Touch Detect or Data Available Interrupt
Auto Power-Down Control
Low Power:
- 32.24 µA at 1.2 V, Fast Mode, 8.2 kHz-Equalization Rate
- 39.31 µA at 1.8 V, Fast Mode, 8.2 kHz-Equalization Rate
- 53.32 µA at 2.7 V, Fast Mode, 8.2 kHz-Equalization Rate
Enhanced ESD Protection:
- ±25-kV Air-Gap Discharge
- ±15-kV Contact Discharge
- 5-mm × 4.4-mm 16-Pin TSSOP Package

SAR ADC resolution (Bits)	12
SAR sample rate (max) (ksps)	154
Touch panel	4-Wire
Control interface	I2C
Vref (int/ext)	External
Rating	Automotive
Operating temperature range (°C)	-40 to 85
Analog supply (min) (V)	1.2
Analog supply (max) (V)	3.6
I/O supply voltage (min) (V)	1.2
I/O supply voltage (max) (V)	3.6
Input type	Single-ended