Data Sheet

MLX90614 family
Single and Dual Zone
Infra Red Thermometer in TO-39
3901090614 Page 7 of 42 Data Sheet
Rev 004 30/Jul2008
Parameter Symbol Test Conditions Min Typ Max Units
SMBus compatible 2-wire interface
2
Input high voltage V
IH
1.8 2 2.2 V
Input high voltage V
IH
(Ta,V) Over temperature and supply 1.6 2.4 V
Input low voltage V
IL
0.7 1.0 1.3 V
Input low voltage V
IL
(Ta,V) Over temperature and supply 0.5 1.5 V
Output low voltage V
OL
SDA pin in open drain mode,
over temperature and supply,
Isink = 2mA
0.2 V
SCL leakage I
SCL
,leak V
SCL
=4V, Ta=+85°C 30 uA
SDA leakage I
SDA
,leak V
SDA
=4V, Ta=+85°C 0.3 uA
SCL capacitance C
SCL
10 pF
SDA capacitance C
SDA
10 pF
Slave address SA Factory default 5Ah hex
SMBus Request t
REQ
SCL low 1.024
ms
Timeout, low T
imeout,L
SCL low 30 ms
Timeout, high T
imeout,H
SCL high 50
us
Acknowledge setup time Tsuac(MD) 8-th SCL falling edge, Master 0.5 1.5
us
Acknowledge hold time Thdac(MD) 9-th SCL falling edge, Master 1.5 2.5
us
Acknowledge setup time Tsuac(SD) 8-th SCL falling edge, Slave 2.5
us
Acknowledge hold time Thdac(SD) 9-th SCL falling edge, Slave 1.5
us
EEPROM
Data retention Ta = +85°C 10
years
Erase/write cycles Ta = +25°C 100,000
Times
Erase/write cycles Ta = +125°C 10,000
Times
Erase cell time Terase 5
ms
Write cell time Twrite 5
ms
Notes: All the communication and refresh rate timings are given for the nominal calibrated HFO frequency and will vary
with this frequency’s variations.
1. All PWM timing specifications are given for single PWM output (factory default for MLX90614xAx). For the extended
PWM output (factory default for the MLX90614xBx) each period has twice the timing specifications (refer to the PWM
detailed description section). With large capacitive load lower PWM frequency is recommended. Thermal relay output
(when configured) has the PWM DC specification and can be programmed as push-pull, or NMOS open drain. PWM is
free-running, power-up factory default is SMBus, refer to 7.6, “Switching between PWM and SMBus communication” for
details..
2. For SMBus compatible interface on 12V application refer to Application information section. SMBus compatible
interface is described in details in the SMBus detailed description section. Maximum number of MLX90614xxx devices on
one bus is 127, higher pull-up currents are recommended for higher number of devices, faster bus data transfer rates,
and increased reactive loading of the bus.
MLX90614xxx is always a slave device on the bus. MLX90614xxx can work in both low-power and high-power SMBus
communication.
All voltages are referred to the Vss (ground) unless otherwise noted.
Power saving mode is not available on the 5V version (MLX90614Axx).