Table of Contents
Features ........................................................................................................................................ 1
Potential Applications ..................................................................................................................... 2
Product Validation .......................................................................................................................... 2
Ordering Information ...................................................................................................................... 2
Description .................................................................................................................................... 3
Table of Contents ........................................................................................................................... 4
About this document ....................................................................................................................... 5
1 Block Diagram Reference ........................................................................................................ 6
2 Pin Configuration ................................................................................................................... 7
Pin Configuration IMC301A / IMC302A .................................................................................................... 7
Pin Configuration Drawing IMC301A ..................................................................................................... 10
Pin Configuration Drawing IMC302A ..................................................................................................... 12
3 Functional Description ........................................................................................................... 14
Application Schematics for IMC301A with Single Shunt Current Sensing .......................................... 14
Application Schematics for IMC302A with Single Shunt Current Sensing .......................................... 15
Application Schematics for IMC302A with Leg Shunt Current Sensing ............................................... 16
4 Electrical characteristics and parameters ................................................................................ 17
General Parameters .............................................................................................................................. 17
4.1.1 Parameter Interpretation ................................................................................................................ 17
4.1.2 Absolute Maximum Ratings ............................................................................................................. 17
4.1.3 Pin Reliability in Overload................................................................................................................ 18
4.1.4 Operating Conditions ....................................................................................................................... 20
4.1.5 Input / Output Characteristics ......................................................................................................... 21
4.1.6 Analog to Digital Converter (ADC).................................................................................................... 23
4.1.7 Power Supply Current ...................................................................................................................... 24
4.1.8 Flash Memory Parameters ............................................................................................................... 24
AC Parameters ....................................................................................................................................... 25
4.2.1 Testing Waveforms ........................................................................................................................... 25
4.2.2 Power-Up and Supply Threshold Characteristics ........................................................................... 26
4.2.3 On-Chip Oscillator Characteristics .................................................................................................. 28
Motor Control Parameters .................................................................................................................... 29
4.3.1 PWM Characteristics ........................................................................................................................ 29
4.3.2 Current Sensing Characteristics ...................................................................................................... 29
4.3.3 Fault Timing ..................................................................................................................................... 30
4.3.4 Analog Hall Sensing Characteristics ................................................................................................ 30
Power Factor Correction (PFC) parameters ......................................................................................... 31
4.4.1 Boost PFC characteristics ................................................................................................................ 31
4.4.2 Totem Pole PFC characteristics ....................................................................................................... 31
4.4.3 PFC current sensing characteristics ................................................................................................ 31
4.4.4 PFC Fault timing ............................................................................................................................... 31
Control Interface Parameters (MCE) ..................................................................................................... 32
4.5.1 UART Interface .................................................................................................................................. 32
4.5.2 Over Temperature Input .................................................................................................................. 32
4.5.3 Pulse Output ..................................................................................................................................... 33
