MLX90614ESF-BCA Melexis Inc, MLX90614ESF-BCA Datasheet - Page 12

• Manufacturer Part Number: MLX90614ESF-BCA
• Description: THERMOMETER IR DUAL 3V TO-39
• Manufacturer: Melexis Inc

Specifications of MLX90614ESF-BCA

• Function: Thermometer, Thermostat
• Topology: ADC (Sigma Delta), Voltage Regulator
• Sensor Type: Internal
• Sensing Temperature: -40°C ~ 85°C
• Output Type: PWM, SMBus™
• Output Alarm: No
• Output Fan: No
• Voltage - Supply: 2.4 V ~ 3.6 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Through Hole
• Package / Case: TO-39
• For Use With: EVB90614 - BOARD EVAL FOR MLX90614
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

MLX90614 family
Single and Dual Zone
Infra Red Thermometer in TO-39
PWM period configuration: Period in extended PWM mode is twice the period in single PWM mode.
In single PWM mode period is T = 1.024*P [ms], where P is the number, written in bits 15…9 PWMCTRL.
Maximum period is then 131.072 ms for single and 262.144 ms for extended. These values are typical and
depend on the on-chip RC oscillator absolute value. The duty cycle must be calculated instead of working
only with the high time only in order to avoid errors from the period absolute value deviations.
The address PWMCTRL consists of control bits for configuring the PWM/SDA pin as follows:
* Values are valid for nominal HFO frequency
Table 6: PWM control bits
The address ConfigRegister1 consists of control bits for configuring the analog and digital parts:
Note: The following bits/registers should not be altered (except with special tools – contact Melexis for such
tools availability) in order to keep the factory calibration relevant:
Ke [15..0] ; Config Register1 [13..11;7;3] ; addresses 0x00F and 0x019.
Table 7: Configuration register 1
3901090614
Page 12 of 49
Data Sheet
Rev 006
September 30, 2010