MX868R

MX868R Datasheet

MX868

Part	Datasheet
MX868R	MX868R (pdf)

Related Parts	Information
MX868RTR	MX868RTR

PDF Datasheet Preview
IXYS MX868 12 Bit Digital Output Magnetic Flux Sensor Features: • Single 5 Volt Power Supply • Externally Configurable ±50A Bi-Direction Current Sense per Turn • 12-Bit Serial Digital Output • Full Scale Magnetic Flux Intensity of ±500 Gauss • 2K Conversions/Second • Microcontroller Compatible • Standard 3 Wire Serial Interface plus Chip Select • In System Calibration OTP Full Scale Trim via the Serial I/O Port • Programmable Digital Filter Time Constant • 4mm x 4mm 8 Lead DFN package RoHS Compliant Applications: • Load Detection and Management • Motor Control • Power Supplies Ordering Information Part No. Description MX868R DFN-8 Tube MX868RTR DFN-8 Tape & Reel Qty 91 2500 The MX868 is a 12 Bit Digital Output Magnetic Flux Sensor. The device is a complete sampled data subsystem that converts a magnetic flux intensity of ±500 Gauss full scale into a 12-bit digital output word. The sensor operates as a slave on the serial interface with TTL-level compatible inputs SDI serial data input , SCK serial clock , and CS* chip select, active low . Terminal SDO is the tri-state serial data output. An adjustable exponentially weighted moving average digital filter is included that is capable of improving the signal to noise ratio while reducing the signal bandwidth. The full scale trim and/or the digital filter time constant are controllable through the serial I/O interface and are one-time programmable through the serial interface once programmed, the values are loaded at every poweron . The MX868 can be mounted onto a PCB or incorporated into a magnetic assembly and then calibrated in-system through the serial interface. The operating voltage range is 4.5V to 5.5V. Functional Block Diagram Typical Application Circuit PWR GND Hall Plate I/O Reg A/D SDI SCK SDO CS* Power MISO Select Microcontroller MOSI SCK Ground 1 PWR 2 SDO 8 CS* 5 SDI MX868 4 SCK GND 7 MX868 Drawing No. 086809 03/03/08 MX868 Absolute Maximum Ratings TA = +25°C unless otherwise noted Parameter Min Max Unit Voltage Any Pin to GND DFN-8 Package 30 °C/W Operating Temperature Range -40 +85 °C Storage Temperature Range -65 150 °C IXYS ESD Warning ESD electrostatic discharge sensitive device. Although the MX868 features proprietary ESD protection circuitry, permanent damage may occur on devices subjected to high energy electrostatic discharges. Therefore, proper ESD precautions are recommended to avoid performance degradation or loss of functionality. Electrical Characteristics PWR= 5V, T = +25°C Parameter Operating Voltage Range PWR Supply Current IPWR Average A/D Reading Average A/D Reading

PDF Datasheet Preview

IXYS

MX868
12 Bit Digital Output Magnetic Flux Sensor

Features:
• Single 5 Volt Power Supply
• Externally Configurable ±50A Bi-Direction

Current Sense per Turn
• 12-Bit Serial Digital Output
• Full Scale Magnetic Flux Intensity of ±500

Gauss
• 2K Conversions/Second
• Microcontroller Compatible
• Standard 3 Wire Serial Interface plus Chip

Select
• In System Calibration OTP Full Scale Trim via
the Serial I/O Port
• Programmable Digital Filter Time Constant
• 4mm x 4mm 8 Lead DFN package RoHS

Compliant

Applications:
• Load Detection and Management
• Motor Control
• Power Supplies
Ordering Information

Part No. Description MX868R DFN-8 Tube MX868RTR DFN-8 Tape & Reel

Qty 91 2500

The MX868 is a 12 Bit Digital Output Magnetic Flux Sensor. The device is a complete sampled data subsystem that converts a magnetic flux intensity of ±500 Gauss full scale into a 12-bit digital output word. The sensor operates as a slave on the serial interface with TTL-level compatible inputs SDI serial data input , SCK serial clock , and CS* chip select, active low . Terminal SDO is the tri-state serial data output.

An adjustable exponentially weighted moving average digital filter is included that is capable of improving the signal to noise ratio while reducing the signal bandwidth. The full scale trim and/or the digital filter time constant are controllable through the serial I/O interface and are one-time programmable through the serial interface once programmed, the values are loaded at every poweron .

The MX868 can be mounted onto a PCB or incorporated into a magnetic assembly and then calibrated in-system through the serial interface. The operating voltage range is 4.5V to 5.5V.

Functional Block Diagram Typical

Application Circuit

PWR GND

Hall Plate

I/O Reg A/D

SDI SCK SDO CS*

Power

MISO Select Microcontroller MOSI SCK

Ground
1 PWR
2 SDO
8 CS*
5 SDI

MX868
4 SCK

GND 7

MX868 Drawing No. 086809
03/03/08

MX868

Absolute Maximum Ratings TA = +25°C unless otherwise noted

Parameter

Min Max Unit

Voltage Any Pin to GND

DFN-8 Package
30 °C/W

Operating Temperature Range -40 +85 °C

Storage Temperature Range
-65 150 °C

IXYS

ESD Warning

ESD electrostatic discharge sensitive device. Although the MX868 features proprietary ESD protection circuitry, permanent damage may occur on devices subjected to high energy electrostatic discharges. Therefore, proper ESD precautions are recommended to avoid performance degradation or loss of functionality.

Electrical Characteristics

PWR= 5V, T = +25°C

Parameter Operating Voltage Range PWR Supply Current IPWR Average A/D Reading

Average A/D Reading

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Datasheet ID: MX868R 644420