4-Wire Touch Screen Controller with low voltage digital I/O and extended ESD protection - TSC2046E

TSC2046E (ACTIVE)

4-Wire Touch Screen Controller with low voltage digital I/O and extended ESD protection

 

Recommended alternative parts

  • TSC2005  -  Low power touch screen controller with SPI interface
  • TSC2006  -  Lower power touch screen controller with SPI interface
  • DRV8601  -  Haptic driver for DC Motors (ERMs) and linear vibrators (LRAs)

Description

The TSC2046E is the next-generation version of the ADS7846 4-wire touch screen controller, supporting a low-voltage I/O interface from 1.5V to 5.25V. The TSC2046E is 100% pin-compatible with the existing ADS7846, and drops into the same socket. This design allows for an easy upgrade of current applications to the new version. The TSC2046E also has an on-chip 2.5V reference that can be used for the auxiliary input, battery monitor, and temperature measurement modes. The reference can also be powered down when not used to conserve power. The internal reference operates down to a supply voltage of 2.7V, while monitoring the battery voltage from 0V to 6V.

The low-power consumption of < 0.75mW typ at 2.7V (reference off), high-speed (up to 125kHz sample rate), and on-chip drivers make the TSC2046E an ideal choice for battery-operated systems such as personal digital assistants (PDAs) with resistive touch screens, pagers, cellular phones, and other portable equipment. The TSC2046E is available in TSSOP-16, QFN-16, and VFBGA-48 packages and is specified over the -40°C to +85°C temperature range.

Features

  • Same Pinout as ADS7846
  • 2.2V to 5.25V Operation
  • 1.5V to 5.25V Digital I/O
  • Internal 2.5V Reference
  • Direct Battery Measurement (0V to 6V)
  • OnChip Temperature Measurement
  • Touch-Pressure Measurement
  • QSPi™ and SPI™ 3-Wire Interface
  • Auto Power-Down
  • Exceeds IEC 61000-4-2 ESD Requirements
    • ±15V Contact Discharge
    • No External Components Needed
  • Available In TSSOP-16, QFN-16, and VFBGA-48 Packages
  • APPLICATIONS
    • Personal Digital Assistants
    • Portable Instruments
    • Point-of-Sale Terminals
    • Pagers
    • Touch Screen Monitors
    • Cellular Phones

SPI and QSPI are trademarks of Motorola Inc.

Microwire is a trademark of National Semiconductor Corporation.

All other trademarks are the property of their respective owners.

View more

Parametrics Compare all products in Touch Screen Controllers

 
Touch Panel
SAR ADC Resolution (Bits)
Input Type
Interface
Vref (Int/Ext)
Control Interface
Operating Temperature Range (C)
Pin/Package
Rating
TSC2046E
4-Wire   
12   
Single-Ended   
Serial   
Int   
SPI   
-40 to 85   
16TSSOP
16VQFN
48BGA MICROSTAR JUNIOR   
Catalog   

Other qualified versions of TSC2046E

Version Part Number Definition
Automotive TSC2046E-Q1 Q100 devices qualified for high-reliability automotive applications targeting zero defects

Featured tools and software