Micropython-TPS55289

Micropython driver for TPS55289 I2C Controlled Buck-Boost Converter from Texas Instruments.
This driver includes methods to control various settings such as output voltage, current limit, slew rate etc. Product Page: https://www.ti.com/product/TPS55289

TPS55289 Parameters

Parameter	Description	Rating
Input Voltage Range	Voltage range that can be applied to VIN pin.	3V to 30V
Output Voltage Range	Voltage range that can be obtained at VOUT pin.	0.8V to 22V
Output Current Limit	Maximum allowable output current.	Up to 6.35A
Slew Rate	Rate at which the output voltage changes.	Up to 10mV/μs
Feedback Mechanism	Method used for feedback (internal/external).	Internal (0) or External (1)
Operating Modes	Modes of operation (Boost, Buck, Buck-Boost).	Boost (00), Buck (01), Buck-Boost (10)
Hiccup Mode	Response to fault conditions (Enabled/Disabled).	Enabled (1), Disabled (0)

Note: Ratings and options may vary based on the specific variant of the TPS55289 and the operating conditions.

Development Progress

• Intial Code Development
• Hardware Design
• Board Fabrication
• Testing
• Release 1.0

Please note that this project currently is just to keep track of development. The code hasn't been tested as of this point. I will keep this repository updated with regards to bugs. Let me know if anyone has had a chance to test this out using the Evaluation Kit(TPS55289EVM) and Raspberry Pico!

Usage

1. Import the necessary modules:

   from machine import Pin
   from machine import I2C
   import TPS55289

2. Create an instance of the TPS55289 class:

   I2C_BUS = I2C(0, scl=Pin(5), sda=Pin(4), freq=100_000)
   Converter = TPS55289(i2c=I2C_BUS, enablePin=0, outputVoltage=5, currentLimit=0.35, feedbackMode=0b0)

3. Use the methods to control the TPS55289:

   Converter.setOutputVoltage(5.0)
   Converter.enableOutputCurrentLimit()
   Converter.setOutputCurrentLimit(6.0)

Class: TPS55289

Methods

setOutputVoltage(voltage: float) -> None

Sets the output voltage of the DC-DC Converter. Valid input range: 0.8V to 22V.

enableOutputCurrentLimit() -> None

Enables the output current limit of the DC-DC Converter.

disableOutputCurrentLimit() -> None

Disables the output current limit of the DC-DC Converter.

setOutputCurrentLimit(currentLimit: float) -> None

Sets the output current limit of the DC-DC Converter. Valid input range: 0.0A to 6.35A.

setOCPResponseTime(OCPResponseTime: int) -> None

Sets the overcurrent protection (OCP) response time.

setSlewRate(slewRate: int) -> None

Sets the slew rate of the DC-DC Converter.

setFeedbackMechanism(Mechanism: str) -> None

Sets the feedback mechanism of the DC-DC Converter.

setStepSize(stepSize: float) -> None

Sets the internal step size for feedback.

enableSCIndication() -> None

Enables short-circuit indication.

disableSCIndication() -> None

Disables short-circuit indication.

enableOCPIndication() -> None

Enables overcurrent indication.

disableOCPIndication() -> None

Disables overcurrent indication.

enableOVPIndication() -> None

Enables overvoltage indication.

disableOVPIndication() -> None

Disables overvoltage indication.

setCDCOption(cdcOption: int) -> None

Sets the CDC compensation mode.

setCDCCompensation(Compensation: float) -> None

Sets the CDC compensation value.

enable() -> None

Enables the TPS55289 DC-DC Converter.

disable() -> None

Disables the TPS55289 DC-DC Converter.

readStatusRegister(debugOrMonitor: str) -> None