DRV201A: Queries regarding Output current in DRV201A

Anonymous

Part Number: DRV201A

Tool/software:

Hi TI,

We are using DRV201A VCM driver. We want to control the VCM driver with full control for that it has to reach 150mA. we want to know ,how we can achieve 150mA through DRV201A VCM driver.

3 days ago

0 Shinya Morita 3 days ago

TI__Mastermind 44315 points

Hi,

Thank you for your post. Monday September 1st is national holiday in US. Please expect delay or please wait for our expert assignment on Tuesday US time

0 Mojtaba Afshar 2 days ago

TI__Expert 4690 points

Hi,

Thank you for reaching out to us.

The DRV201A maximum output current is 102.3 mA which can be controlled by VCM_CURRENT_MSB, and VCM_CURRENT_LSB registers.

Best regards,

Mojtaba.

0 Anonymous 1 day ago in reply to Mojtaba Afshar

Intellectual 265 points

Hi Ti,
According to the datasheet, we should be able to achieve an output current of 102mA with 3.3V as input. However, in our testing, we are only able to reach 82mA at 3.3V. To achieve the full 102mA as output, we are increasing the input voltage to 4.2V. Our requirement is to achieve 102mA output current while operating DRV201A with 3.3V as input.

0 Mojtaba Afshar 1 day ago in reply to Anonymous

TI__Expert 4690 points

Hi,

Based on the the datasheet the recommended Vin voltage is 3.7 V as can be seen below. Would you please test the device with 3.7 as well.

Best regards,

Mojtaba.

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DRV201A: Queries regarding Output current in DRV201A