MLX90614 family Single and Dual Zone Infra Red Thermometer in TO-39 Parameter Symbol Test Conditions Min Typ Max Units SMBus compatible 2-wire interface2 Input high voltage VIH (Ta, V) Over temperature and supply 3 V Input low voltage VIL (Ta, V) Over temperature and supply 0.6 V Over temperature and supply, Isink Output low voltage VOL 0.2 V = 2mA SCL leakage ISCL, leak VSCL=4V, Ta=+85°C 30 μA SDA leakage ISDA, leak VSDA=4V, Ta=+85°C 0.3 μA SCL capacitance CSCL 10 pF SDA capacitance CSDA 10 pF Slave address SA Factory default 5A hex Wake up request twake SDA low 33 ms SMBus Request tREQ SCL low 1.44 ms Timeout, low Timeout,L SCL low 27 33 ms Timeout, high Timeout,H SCL high 45 55 μs Acknowledge setup time Tsuac(MD) 8-th SCL falling edge, Master 1.5 μs Acknowledge hold time Thdac(MD) 9-th SCL falling edge, Master 1.5 μs Acknowledge setup time Tsuac(SD) 8-th SCL falling edge, Slave 2.5 μs Acknowledge hold time Thdac(SD) 9-th SCL falling edge, Slave 1.5 μs 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 Table 3: Electrical specification MLX90614Axx 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. 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 section 8.6, “Switching between PWM and SMBus communication” for more 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 MLX90614 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. MLX90614 is always a slave device on the bus. MLX90614 can work in both low-power and high-power SMBus communication. All voltages are referred to the Vss (ground) unless otherwise noted. Sleep mode is not available on the 5V version (MLX90614Axx). REVISION 13 - 13 SEPTEMBER 2019 Page 10 of 57
