MLX91209
Hall Current Sensor IC in VA package
1. Features and Benefits
2. Application Examples
°
°
°
°
°
°
°
°
Programmable high speed current sensor
Programmable linear transfer characteristic
Selectable analog ratiometric output
Measurement range from 15 to 450mT
Single die VA package RoHS compliant
Wideband: DC to 200kHz
°
°
°
°
Inverter applications in HEV and EV
BLDC motor current monitoring
AC/DC converters
Over current detection circuit
Short response time
Lead free component, suitable for lead free
soldering profile 260°C (target), MSL1
AEC-Q100 Automotive Qualified
°
3. General Description
The MLX91209 is a monolithic programmable Hall sensor IC featuring the planar Hall technology, which is
sensitive to the flux density applied orthogonally to the IC surface. The sensor provides an output signal
proportional to the applied magnetic flux density and is preferably suited for current measurement.
The transfer characteristic of the MLX91209 is programmable (offset, gain). The linear analog output is designed
for applications where a very fast response is required, such as inverter applications.
In a typical application, the sensor is used in combination with a ring shaped soft ferromagnetic core. The Hall IC
is placed in a small air gap and the current conductor is passed through the inner part of the ferromagnetic ring.
The ring concentrates and amplifies the magnetic flux on the Hall sensor IC, which generates an output voltage
proportional to the current flowing in the conductor.
4. Ordering Information
Default Sensitivity
Product
Temperature
Package Option Code
Packing Form
mV/mT
MLX91209 L (-40°C to 150°C)
MLX91209 L (-40°C to 150°C)
MLX91209 L (-40°C to 150°C)
VA
VA
VA
VA
CAA - 000
CAA - 001
CAA - 002
CAA - 003
RE
RE
RE
RE
50
15
7.3
19
MLX91209 L (-40°C to 150°C)
Table 1: Ordering Information
Legend:
Temperature Code:
Package Code:
L: from -40°C to 150°C
“VA” for SIP 4L (single in-line package)
CAA: Sensitivity Range 5-150mV/mT
“RE” for Reel
Option Code:
Packing Form:
Ordering Example:
MLX91209LVA-CAA-000-RE
390109120901
Rev.010
Page 1 of 15
MLX91209
June 2018