IPS2550 Datasheet

© 2022 Renesas Electronics Corporation

2

June 20, 2022

Contents

1.

Pin Assignments...........................................................................................................................................................................................5

2.

Pin Descriptions............................................................................................................................................................................................5

3.

Receiver Coil Connection Options................................................................................................................................................................7

4.

Absolute Maximum Ratings..........................................................................................................................................................................9

5.

Operating Conditions..................................................................................................................................................................................10

6.

Ambient Temperature Range .....................................................................................................................................................................11

7.

Electrical Characteristics ............................................................................................................................................................................12

8.

Circuit Description ......................................................................................................................................................................................20

8.1 Overview............................................................................................................................................................................................21

9.

Sampling Rate, Resolution, Output Data Rate, and Propagation Delay.....................................................................................................24

10. Output Modes.............................................................................................................................................................................................24

11. Operating at High Speed ............................................................................................................................................................................25

12. Digital Diagnostics and Programming Interfaces........................................................................................................................................26

13. Block Diagram ............................................................................................................................................................................................26

14. Detailed Block Descriptions........................................................................................................................................................................27

14.1 Power Management ..........................................................................................................................................................................27

14.2 LC Oscillator......................................................................................................................................................................................27

14.3 Analog Signal Path ............................................................................................................................................................................27

14.3.1 Rx Coil Diagnostics ............................................................................................................................................................27

14.3.2 Receiver Signal Low-Pass Filter.........................................................................................................................................27

14.3.3 Offset and Gain Matching...................................................................................................................................................28

14.3.4 Demodulation .....................................................................................................................................................................28

14.3.5 Automatic Gain Control (AGC) ...........................................................................................................................................28

14.4 Signal Channel Swapping .................................................................................................................................................................28

14.5 Output Buffers ...................................................................................................................................................................................28

14.6 Temperature Sensor..........................................................................................................................................................................29

15. ECU Connection Options ...........................................................................................................................................................................29

15.1 Embedded vs. Remote Connection...................................................................................................................................................29

15.2 Supply Voltage Operation: 3.3V or 5V...............................................................................................................................................32

15.3 I2C Interface......................................................................................................................................................................................32

15.3.1 I2C with Address Selection (Default)..................................................................................................................................32

15.3.2 Avoiding a Parasitic Path through ADR_IRQN Pin during Loss of GND or Loss of VDD...................................................33

15.3.3 I2C Interface with Interrupt (Programming Option).............................................................................................................34

16. Over-Voltage Protection .............................................................................................................................................................................35

16.1 I/O Protection.....................................................................................................................................................................................35

17. Programming Options.................................................................................................................................................................................35

17.1 Programming the Device to Use the Other Supply Voltage Option ...................................................................................................37

17.2 Lock Feature (Cyber Security)...........................................................................................................................................................37