 |
Electronic Components Datasheet Search |
|
|
Electronic Components Datasheet Search |
|
HAL856UT-A Datasheet(PDF) 7 Page - Micronas |
|
||||||||||||||||||||||||||||||
HAL856UT-A Datasheet(HTML) 7 Page - Micronas |
|
|
7 / 42 page  DATA SHEET HAL856 Micronas March 23, 2010; DSH000142_002EN 7 2. Functional Description 2.1. General Function The HAL856 is a monolithic integrated circuit which provides an output signal proportional to the magnetic flux through the Hall plate. The external magnetic field component perpendicular to the branded side of the package generates a Hall voltage. The Hall IC is sensitive to magnetic north and south polarity. This voltage is converted to a digital value, processed in the Digital Signal Processing Unit (DSP) according to the settings of the EEPROM regis- ters, converted to the different digital output formats (PWM and Biphase-M serial protocol) and provided by an output current source. The function and the param- eters for the DSP are explained in Section 2.2. on page 9. The setting of the LOCK register disables the program- ming of the EEPROM memory for all time. This regis- ter cannot be reset. As long as the LOCK register is not set, the output characteristic can be adjusted by programming the EEPROM registers. The IC is addressed by modulat- ing the supply voltage (see Fig. 2–1). After detecting a command, the sensor reads or writes the memory and answers with a digital modulation of the current con- sumption. There is no transmission of the PWM signal during the communication. When no command is detected or processed and the supply voltage is within the recommended operating range the PWM or Biphase-M output is enabled. Internal temperature compensation circuitry and the choppered offset compensation enables operation over the full temperature range with minimal changes in accuracy and high offset stability. The circuitry also rejects offset shifts due to mechanical stress from the package. The non-volatile memory consists of redun- dant EEPROM cells. In addition, the sensor IC is equipped with devices for overvoltage and reverse- voltage protection at all pins. Fig. 2–1: Programming with VDD modulation Fig. 2–2: HAL856 block diagram 5 6 7 8 HAL 856 VDD GND DATA Temperature Oscillator Switched A/D Digital DATA VDD GND EEPROM Memory Bandgap Reference Dependent Bias Hall Plate Converter Signal Processing Supply Lock Level Control Current Output Detection and Protection Devices |
Similar Part No. - HAL856UT-A |
|
Similar Description - HAL856UT-A |
|
|
Link URL |
| Privacy Policy |
| ALLDATASHEET.NET |
| Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
| Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
|
Family Site : ic2ic.com |
icmetro.com |
English ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
