mlx90601b Micrel Semiconductor, mlx90601b Datasheet - Page 3

• Manufacturer Part Number: mlx90601b
• Description: Analog Ir Thermometer Module
• Manufacturer: Micrel Semiconductor

General Description
MLX90601 is a versatile IR thermometer built
around the MLX90247 Discrete IR thermopile
sensor with on-chip PTC and the MLX90313
Programmable IR sensor interface.
MLX90313 amplifies the signals coming from
MLX90247 and converts them to digital by
means of two high performance, low noise,
chopper stabilized amplifiers and the 12-bit
analog to digital converter. The digital unit on
the interface then performs the ambient
compensation of the IR signal. This results in
two temperature signals, one representing the
temperature of the object the IR sensor is
pointed at (Tobject) and one representing the
temperature of the sensor (Tambient). Both
signals are then linearised and presented at the
outputs (Tobject is present at pin IROUT,
Tambient is present at pin TEMPOUT) by means
of the 8 bit digital to analog converter.
The REL1 output is directly connected to the
open drain relay driver output of MLX90313.
This output is switched by means of a factory
programmable comparator.
Unique Features
MLX90601 is an automotive grade IR
thermometer that can be fitted to any contactless
temperature measurement application by means
of the programmable interface. The module is
designed to cope with all standard qualification
tests oriented towards the harsh automotive
environment.
If so desired, all temperature ranges and
comparator settings can be adapted to the
application.
MLX90601 is delivered calibrated, relieving the
customer of IR calibration.
390109060101
Rev. 004
Page 3 of 8
Absolute Maximum Ratings
Supply Voltage, V
Supply Voltage, V
Reverse Voltage Protection
Supply Current, I
Output Current, I
Operating Temperature Range, T
Storage Temperature Range, T
ESD Sensitivity
Pinout
Pin
1
2
3
4
5
Analog IR thermometer module
Datasheet
Symbol
IROUT
TEMPOUT
VDD
REL1
VSS
OUT
DD
DD
DD
@25 C
(overvoltage)
(operating)
MLX90601B
Description
Object temperature output
Ambient temperature output
Supply pin
Open drain, relay driver
comparator output
Ground
S
A
80V
4.5V - 6V
-5V
6 mA
mA
-40 C - 125 C
-55 C - 150 C
4kV
Dec/01