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Overview
| Topology | Boost Converter |
| IC revision | G |
Description
The TSC2046 is a next-generation version to the ADS7846 4-wire touch screen controller which supports a low-voltage I/O interface from 1.5V to 5.25V. The TSC2046 is 100% pin-compatible with the existing ADS7846, and will drop into the same socket. This allows for easy upgrade of current applications to the new version. The TSC2046 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 2.7V supply voltage, 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 TSC2046 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 TSC2046 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)
- ON-CHIP TEMPERATURE MEASUREMENT
- TOUCH-PRESSURE MEASUREMENT
- QSPI™ AND SPI™ 3-WIRE INTERFACE
- AUTO POWER-DOWN
- 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
Typical applications
- POINT-OF-SALE TERMINALS
- PAGERS
- CELLULAR PHONES
- PERSONAL DIGITAL ASSISTANTS
- TOUCH SCREEN MONITORS
- PORTABLE INSTRUMENTS
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | ISAT(A) | fres(MHz) | Mount | IRP,40K(A) | ISAT,10%(A) | ISAT,30%(A) | Z @ 100 MHz(Ω) | Zmax(Ω) | Test Condition Zmax | IR 2(mA) | RDC max.(mΩ) | Type | Winding Style | L(µH) | IR(A) | VR(V) | VT(V (AC)) | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WE-TPC SMT Tiny Power Inductor, 1.25 A, 120 MHz | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-TPC SMT Tiny Power Inductor | Saturation Current1.25 A | Self Resonant Frequency120 MHz | MountSMT | – | – | – | – | – | – | – | DC Resistance58 mΩ | – | – | Inductance2.5 µH | Rated Current1.45 A | – | – | ||||
 | WE-CBF SMT EMI Suppression Ferrite Bead, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-CBF SMT EMI Suppression Ferrite Bead | – | – | MountSMT | – | – | – | Impedance @ 100 MHz600 Ω | Maximum Impedance800 Ω | Maximum Impedance200 MHz | Rated Current 21000 mA | DC Resistance200 mΩ | TypeHigh Current | – | – | Rated Current0.8 A | – | – | ||||
 | WE-CNSW SMT Common Mode Line Filter, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-CNSW SMT Common Mode Line Filter | – | – | MountSMT | – | – | – | Impedance @ 100 MHz90 Ω | – | – | – | DC Resistance300 mΩ | – | Winding Stylebifilar | Inductance0.131 µH | Rated Current0.37 A | Rated Voltage50 V | Insulation Test Voltage125 V (AC) | ||||
 | WE-LHMI SMT Power Inductor, –, 64 MHz | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-LHMI SMT Power Inductor | – | Self Resonant Frequency64 MHz | MountSMT | Performance Rated Current4.9 A | Saturation Current @ 10%5.65 A | Saturation Current @ 30%10.1 A | – | – | – | – | DC Resistance42 mΩ | – | – | Inductance1.5 µH | – | – | – |