MX8681RTR IXYS, MX8681RTR Datasheet

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MX8681RTR

Manufacturer Part Number
MX8681RTR
Description
IC FLUX SENSOR 12BIT DGTL 8-DFN
Manufacturer
IXYS
Type
Unipolar Switchr
Datasheets

Specifications of MX8681RTR

Voltage - Supply
4.5 V ~ 5.5 V
Current - Supply
3mA
Output Type
Digital, 12-Bit Serial
Features
High Sensitivity
Operating Temperature
-40°C ~ 85°C
Package / Case
8-VFDFN
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Sensing Range
-
Current - Output (max)
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
PWR
GND
MX8681
Drawing No. 0868109
Features:
• Higher Sensitivity Version of the MX868
• Single 5 Volt Power Supply
• Externally Configurable ±20A Bi-Direction
• 12-Bit Serial Digital Output
• Full Scale Magnetic Flux Intensity of ±200
• 2K Conversions/Second
• Microcontroller Compatible
• Standard 3 Wire Serial Interface plus Chip
• In System Calibration: OTP Full Scale Trim via
• Programmable Digital Filter Time Constant
• 4mm x 4mm 8 Lead DFN package RoHS
Applications:
• Load Detection and Management
• Motor Control
• Power Supplies
Ordering Information
Part No.
MX8681R
MX8681RTR DFN-8 Tape & Reel
Current Sense per Turn
Gauss
Select
the Serial I/O Port
Compliant
Functional Block Diagram Typical
IXYS
Plate
Hall
Description
DFN-8 Tube
A/D
I/O Reg
Qty
91
2500
SDI
SCK
SDO
CS*
12-Bit Digital Output Magnetic Flux Sensor
1
General Description
The MX8681 is a 12 Bit Digital Output Magnetic
Flux Sensor. The device is a complete sampled
data subsystem that converts a magnetic flux
intensity of ±200 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
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
programmable through the serial interface (once
programmed, the values are loaded at every power-
on).
The MX8681 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.
Ground
±200 Gauss / 2KHz Conversion Rate
Power
adjustable
serial
Microcontroller
I/O
Application Circuit
exponentially
MISO
Select
MOSI
SCK
interface
2
8
5
4
SDO
CS*
SDI
SCK
and
www.claremicronix.com
MX8681
weighted
PWR
1
GND
7
MX8681
are
one-time
03/03/08
moving

Related parts for MX8681RTR

MX8681RTR Summary of contents

Page 1

... Compliant Applications: • Load Detection and Management • Motor Control • Power Supplies Ordering Information Part No. Description MX8681R DFN-8 Tube MX8681RTR DFN-8 Tape & Reel Functional Block Diagram Typical PWR Hall I/O Reg Plate A/D GND MX8681 Drawing No. 0868109 12-Bit Digital Output Magnetic Flux Sensor ± ...

Page 2

... V 30 °C/W -40 +85 °C -65 150 °C Condition Min Zero Magnetic Flux 2040 100 Gauss, North Pole Digital Filter Off high or low 200 500 100 PWR-0.5 GND 2 IXYS Typ Max 4.5 5.5 3 2048 2056 3072 3 0.5 0.8 2 PWR 1 www.claremicronix.com Unit V mA LSB ...

Page 3

... MX8681 increases the A/D output count. Applications that require non-continuous one measurement at a time operation should pulse CS* low twice, reading the data when CS* is low for the second time. Acquisition (n) CS* SCK SDO externally controlled sampling period MX8681 Drawing No. 0868109 Acquisition (n+1) A/D Convert ( IXYS A/D Convert (n+1) Serial Output ( 03/03/08 www.claremicronix.com 1 0 ...

Page 4

... At power-on the previous value is initialized to zero. A programmed change in A[2:0] does not reset the previous value. Therefore when using the filter, multiple samples must be taken at power-on or after changing A[2:0] before the filtered output will be correct. MX8681 Drawing No. 0868109 D11 D10 IXYS max B1 B0 www.claremicronix.com Zp 03/03/08 ...

Page 5

... MX8681 Drawing No. 0868109 Time Constant Sample Weighting No Filter 15T 1/16 31T 1/32 63T 1/64 127T 1/128 5 IXYS 1 1/2 1/4 1/8 03/03/08 www.claremicronix.com ...

Page 6

... MX8681 Cascade Configurations Sensor Location MX8681 Drawing No. 0868109 6 IXYS 03/03/08 www.claremicronix.com ...

Page 7

... DFN package is 1.1 mm whereas the chip height is about 0.4 mm. MX8681 Drawing No. 0868109 Flex circuit MX8681 Cross Section (drawing not to scale) PCB bottom layer: (top view, 1X) MX8681 Copper stamping, thickness as required 7 IXYS (2) E14 planar cores Flex circuit: (component side, 1X) 03/03/08 www.claremicronix.com ...

Page 8

... Neither circuit patent licenses nor indemnity are expressed or implied. Except as set forth in IXYS’ Standard Terms and Conditions of Sale, IXYS Corporation assumes no liability whatsoever, and disclaims any expressed or implied warranty, relating to its products including, but not limited to, the implied warranty of merchantability, fitness for a particular purpose, or infringement of any intellectual property right ...

Page 9

... IXYS cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in this IXYS product. No circuit patent licenses nor indemnity are expressed or implied. IXYS reserves the right to change the specification and circuitry, without notice at any time. The products described in this document are ...

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