MLX91205
IMC-Hall®Current Sensor (Triaxis®Technology)
Features and Benefits
Applications Examples
Triaxis® Technology
AC and/or DC contact-less current
Very high sensitivity due to integrated
magnetic concentrator ( IMC-Hall®)
Sensitive to a magnetic field parallel to the
chip surface
measurement
Wideband Magnetic Field Measurement
Battery Management
AC/DC Converters
Linear output voltage proportional to a
magnetic field
Wideband: DC to 100kHz
Short response time 8μs
Low offset and offset drift
Very low noise
Motor Control
Solar Power Converter (MPPT)
Power Management
Isolated from current conductor
Surface mount SOIC8 package
Ordering Information
Product
Code
MLX91205
MLX91205
Temperature
Code
K (-40°C to 150°C)
K (-40°C to 150°C)
Package
Code
DC (SOIC)
DC (SOIC)
Ordering
Option Code
AAH-003
Packing
form Code
Sensitivity
(Typ.)
100 mV/mT
280 mV/mT
TU (Tube) / RE (Reel)
AAL-003
Ordering example: MLX91205KDC-AAH-003-TU
1 Functional diagram
2 General description
The new IMC-Hall® current sensor MLX91205 is a
single axis integrated magnetic sensor based on
the Hall Effect. It produces an analog linear, ratio-
metric output voltage proportional to the applied
magnetic field parallel with the chip surface.
VDD
GND
NC
Amplifier
™
Demodulator
Buffer
CO_OUT
A_OUT
Tria is
Modulator
The circuit is fabricated using a standard CMOS
process. The additional ferromagnetic layer
(IMC-Hall® = Integrated Magnetic Concentrator,
Triaxis® Technology) that is added in a simple
post-processing step, amplifies the magnetic field
and concentrates it on the Hall elements.
Therefore, the circuit features very high magnetic
sensitivity, low offset, and low noise.
Offset
Cancellation
Biasing
Unit
Calibration Unit
PV
PC
PD
The MLX91205 is ideally suited for current
sensing
in
automotive
and
industrial
environments.
There are 2 different product versions available.
The 91205HB features a linear magnetic field
range of ±25mT and the 91205LB features a linear
range of ±10mT. HB refers to a high magnetic
field, whereas LB refers to a low magnetic field
range.
3901091205
Rev 012
Page 1 of 14
Data Sheet
June/13