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MLX92232LUA-AAA-003-BU Arkusz danych(PDF) 1 Page - Melexis Microelectronic Systems

Numer części MLX92232LUA-AAA-003-BU
Szczegółowy opis  End of line programmable Hall-effect Latch / Switch
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Producent  MELEXIS [Melexis Microelectronic Systems]
Strona internetowa  http://www.melexis.com
Logo MELEXIS - Melexis Microelectronic Systems

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MLX92232
End of line programmable Hall-effect Latch / Switch
3901092232 – REV 2
Page 1 of 12
Nov/14
Features and Benefits
 Programmable parameters in the application
 Wide magnetic Latch range: ±0.4mT to ±80mT
 Wide magnetic Switch range: ±1.5mT to ±66mT
 Programmable Hysteresis: 1mT to 36mT
 Programmable field: North or South
 Programmable Output polarity: Direct or Inverted
 Built-in Negative TC coefficient: 0 to -2000 ppm/degC
 Increased Traceability: 32 bits ID on chip
 Wide operating voltage range : from 2.7V to 24V
 Reverse Supply Voltage Protection
 Output Current Limit with Auto-Shutoff
 Under-Voltage Lockout Protection
 Thermal Protection
Application Examples
 Automotive, Consumer and Industrial
 Solid-state switch
 3-phase BLDC motor commutation
 Wiper motor
 Window lifter
 Sunroof/Tailgate opener
 Seat motor adjuster
 Electrical power steering
 Brake Light switch
1 Functional Diagram
VDD
GND
OUT
Open-Drain
Output
Control
Voltage Regulator
with Reverse Polarity
Protection
CDS
Amplifier
Switched
Hall
Plate
Current
Limit &
Auto-Shutoff
Under-
Voltage
Lockout
Thermal
Protection
Bop/Brp
reference
Temperature
Compensation
2 General Description
The Melexis MLX92232 is the second generation
programmable Hall-effect sensor designed in mixed
signal CMOS technology. The device integrates a
voltage regulator, Hall sensor with advanced offset
cancellation system and an open-drain output driver,
all in a single package.
With the built-in reverse voltage protection, a serial
resistor or diode on the supply line is not required so
that even remote sensors can be specified for low
voltage operation down to 2.7V while being reverse
voltage tolerant. In the event of a drop below the
minimum supply voltage during operation, the under-
voltage lock-out protection will automatically freeze
the device, preventing the electrical perturbation to
affect the magnetic measurement circuitry. .
The open drain output is fully protected against short-
circuit with a built-in current limit. An additional
automatic output shut-off is activated in case of a
prolonged short-circuit condition. A self-check is then
periodically performed to switch back to normal
operation if the short-circuit condition is released.
The on-chip thermal protection also switches off the
output if the junction temperature increases above an
abnormally
high
threshold.
It
will
automatically
recover once the temperature decreases below a
safe value.
Furthermore the MLX92232 features a full set of
programmable parameters that can be adjusted in
the application in order to achieve the highest
possible system accuracy by compensating the
mechanical tolerances.
Ordering Information
Part No.
Temperature Code
Package Code
Comment
MLX92232LSE-AAA-000-RE
L (-40°C to 150°C)
SE (TSOT-3L)
3-wire Switch / Latch, TC = 0 ppm/°C
MLX92232LUA-AAA-000-BU
L (-40°C to 150°C)
UA (TO-92)
3-wire Switch / Latch, TC = 0 ppm/°C
MLX92232LSE-AAA-001-RE
L (-40°C to 150°C)
SE (TSOT-3L)
3-wire Switch / Latch, TC = -400 ppm/°C
MLX92232LUA-AAA-001-BU
L (-40°C to 150°C)
UA (TO-92)
3-wire Switch / Latch, TC = -400 ppm/°C
MLX92232LSE-AAA-002-RE
L (-40°C to 150°C)
SE (TSOT-3L)
3-wire Switch / Latch, TC = -1100 ppm/°C
MLX92232LUA-AAA-002-BU
L (-40°C to 150°C)
UA (TO-92)
3-wire Switch / Latch, TC = -1100 ppm/°C
MLX92232LSE-AAA-003-RE
L (-40°C to 150°C)
SE (TSOT-3L)
3-wire Switch / Latch, TC = -2000 ppm/°C
MLX92232LUA-AAA-003-BU
L (-40°C to 150°C)
UA (TO-92)
3-wire Switch / Latch, TC = -2000 ppm/°C


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