Press Release Summary:
Housed in 4 x 4 mm QFN16 package, Model iC-TW11 allows for 10-bit angle detection, suitable for battery-buffered applications. With sampling rate of 10 Hz, average current consumption of 3 ÂµA is obtained, and in standby mode between measuring cycles, idle current cuts back to 100 nA. Model iC-TW11 supports sampling rates of 4 kHz with activated filter and automatic amplifier gain for 10-bit resolution at maximum accuracy. Four-wire SPI interface can be operated with up to 16 MHz clock frequency.
Original Press Release:
Ultra Low Power 10-Bit Hall Encoder
Magnetic Single-Chip Encoder with a current consumption of only a few µA
The Ultra Low Power Single-Chip Hall Encoder iC-TW11 by iC-Haus allows for an energy-saving 10-bit angle detection and therefore targets for example battery-buffered applications. With a sampling rate of 10 Hz an average current consumption of typically 3 µA is obtained. In standby mode between measuring cycles the idle current cuts back to approximately 100 nA. In normal operation iC-TW11 supports sampling rates of 4 kHz with an activated filter and automatic amplifier gain for 10-bit resolution at maximum accuracy. A measuring cycle can be operated either via the SPI interface or via a separate trigger input by an external event.
A new position value is being signaled to the microcontroller via interrupt. The 4-wire SPI interface can be operated with up to 16 MHz clock frequency. The interrupt structure allows a daisy chain wiring of multiple iC-TW11. Therefore a controller can capture multiple rotation axes simultaneously.
Typical applications are:
- Battery-operated dynamic speed measurement in power tools
- Position and motor control in mobile robots or airplanes
- Wireless position measuring with “energy harvesting“ power supply
- Mobile servo motor and stepper motor controls
- Simple 10-bit encoder with adaptive current consumption
- Digital control knob with high resolution and ultra-cap buffering
- Manually adjustable digital potentiometer
- Control knob with pushbutton function through evaluation of the magnetic field strength
The evaluation board iC-TW11 EVAL TW11_1C comes with an USB-interface and GUI-Software for easy testing and configuration of this single-chip encoder iC.
At a voltage supply of 3.3 V (+/- 10 %) iC-TW11 operates in the extended industrial operating temperature range from -40 to +125 °C. The space requirement of the single-chip encoder iC is especially low due to the QFN16 package with 4 mm x 4 mm. Production volume can be ordered at $4.21 in quantities of 1.000pcs.
Further information can be found at http://www.ichaus.com/TW11.
iC-Haus GmbH is a leading, independent German manufacturer of standard iCs (ASSP) and customized ASiC semiconductor solutions with worldwide representation. The company has been active in the design, production, and sales of application-specific iCs for industrial, automotive, and medical applications for 30 years now.
The iC-Haus cell libraries in CMOS, bipolar, and BCD technologies are specifically suited to realize the design of sensor, laser/opto, and actuator ASiCs, amongst others. The iCs are assembled in standard plastic packages or using the iC-Haus chip-on-board technology to manufacture complete microsystems, multichip modules, and optoBGA/QFN in conjunction with sensors.
Further information is available at http://www.ichaus.com.
If you have any queries, please contact:
Am Kuemmerling 18,
55294 Bodenheim, Germany
Tel.: +49 (6135) 9292-313
Fax: +49 (6135) 9292-192