Overview
The TSC2046IPWRG4 is a low-voltage I/O touch screen controller produced by Texas Instruments. It is a next-generation version of the ADS7846, offering enhanced features and compatibility. This device supports a low-voltage I/O interface from 1.5V to 5.25V and is 100% pin-compatible with the ADS7846, making it an ideal choice for upgrading existing applications. The TSC2046IPWRG4 features an internal 2.5V reference, on-chip temperature measurement, touch-pressure measurement, and direct battery measurement capabilities. It is designed for use in battery-operated systems and is available in TSSOP-16, QFN-16, and VFBGA-48 packages.
Key Specifications
| Parameter | Condition | Min | Typ | Max | Units |
|---|---|---|---|---|---|
| Operating Voltage Range | 2.2 | 5.25 | V | ||
| Digital I/O Voltage Range | 1.5 | 5.25 | V | ||
| Internal Reference Voltage | 2.45 | 2.50 | 2.55 | V | |
| Resolution | 12 Bits | ||||
| Integral Linearity Error | ±2 LSB | ||||
| Conversion Time | 12 CLK Cycles | ||||
| Throughput Rate | 125 kHz | ||||
| Temperature Range | −40°C | +85°C | °C | ||
| Quiescent Current (Internal Reference Off) | 280 | 650 | µA | ||
| Quiescent Current (Internal Reference On) | 780 | µA |
Key Features
- Low-voltage I/O interface from 1.5V to 5.25V
- Internal 2.5V reference voltage
- On-chip temperature measurement and touch-pressure measurement
- Direct battery measurement (0V to 6V)
- QSPI and SPI 3-wire interface
- Auto power-down mode
- Available in TSSOP-16, QFN-16, and VFBGA-48 packages
- High-speed sampling up to 125kHz
- Low power consumption (< 0.75mW at 2.7V with reference off)
Applications
- Personal digital assistants (PDAs)
- Portable instruments
- Point-of-sale terminals
- Pagers
- Touch screen monitors
- Cellular phones
Q & A
- What is the operating voltage range of the TSC2046IPWRG4?
The operating voltage range is from 2.2V to 5.25V.
- What is the resolution of the TSC2046IPWRG4?
The resolution is 12 bits.
- What is the throughput rate of the TSC2046IPWRG4?
The throughput rate is up to 125 kHz.
- Does the TSC2046IPWRG4 have an internal reference voltage?
Yes, it has an internal 2.5V reference voltage.
- What are the available package options for the TSC2046IPWRG4?
The device is available in TSSOP-16, QFN-16, and VFBGA-48 packages.
- What is the temperature range for the TSC2046IPWRG4?
The specified temperature range is from −40°C to +85°C.
- Does the TSC2046IPWRG4 support battery measurement?
Yes, it supports direct battery measurement from 0V to 6V.
- What is the quiescent current of the TSC2046IPWRG4 with the internal reference off?
The quiescent current is typically 650 µA with the internal reference off.
- Is the TSC2046IPWRG4 compatible with the ADS7846?
Yes, it is 100% pin-compatible with the ADS7846.
- What are some common applications of the TSC2046IPWRG4?
Common applications include personal digital assistants, portable instruments, point-of-sale terminals, pagers, touch screen monitors, and cellular phones.
