MLX90614 family Single and Dual Zone Infra Red Thermometer in TO-39 3. Contents Fea e t a ur u e r s e s a n a d n d B e B n e e n f e it i s .. . .. . .. . 1 Ap A p p l p ilc i a c t a io i n o n E x E a x m a p m l p e l s e .. . .. . .. . 1 Or O d r e d r e i r n i g n g I n I f n o f r o m r a m t a i t o i n o .. . .. . .. . 1 1. 1 . F un u c n t c io i n o a n l a l di d a i gr g a r m .. . .. . .. . 2 2. 2 . G e G n e e n r e a r l a l D e D s e c s r c i r p i t p io i n o .. . .. . .. . 2 3. 3 . C o C n o t n e t n e t n s .. . .. . .. . .. 4 4. 4 . G l G o l s o s s a s r a y r y o f o T e T r e m r s m .. . .. . .. . .. 7 5. 5 . M a M x a i x m i u m m u m r a r t a i t n i g n s g .. . .. . .. . ... 7 6. 6 . P i P n i n d e d f e i f n i i n t i io i ns n s a nd n d d e d s e c s r c i r pt p i t o i ns n .. . .. . ... 8 7. 7 . E l E e l c e t c ri r c i a c l a l S p S e p c e i c f i ic i a c t a io i n o s n .. . .. . .. . 9 7.1. MLX90614Axx ... 9 7.2. MLX90614Bxx, MLX90614Dxx .. 11 8. 8 . D et e ai a lie l d e d d e d s e c s r c i r p i t p i t o i n o .. . .. . .. . 13 1 8.1. Block diagram .. 13 8.2. Signal processing principle ... 13 8.3. Block description ... 14 8.3.1. Amplifier .. 14 8.3.2. Supply regulator and POR .. 14 8.3.3. EEPROM .. 14 8.3.4. RAM ... 17 8.4. SMBus compatible 2-wire protocol ... 17 8.4.1. Functional description .. 17 8.4.2. Differences with the standard SMBus specification (reference [1]) .. 18 8.4.3. Detailed description ... 18 8.4.4. Bit transfer .. 19 8.4.5. Commands .. 20 8.4.6. SMBus communication examples .. 20 8.4.7. Timing specification .. 21 8.4.8. Sleep Mode ... 22 8.4.9. MLX90614 SMBus specific remarks ... 23 8.5. PWM .. 24 REVISION 13 - 13 SEPTEMBER 2019 Page 4 of 57
