HOW DOES IT WORK?

H-Bridge 16 Click is based on the DRV8262, a dual H-Bridge motor driver from Texas Instruments. It has a high output current capability and supports up to 8A peak current as a dual H-Bridge driver. You can configure the interface of operation between PH/EN and PWM. The PH/EN mode allows the H-Bridge to be controlled with a speed and direction type of interface. The PWM interface allows the H-Bridge outputs to become Hi-Z. There are two potentiometers (REF2 and REF1), which are reference voltage inputs for bridges 2 and 1. They are used to set the current limit for bridges. The integrated sensing uses a current mirror to limit the output current.

The H-Bridge 16 Click uses the PCA9538A, a low-voltage 8-bit I/O port to control the IO pins of the motor driver. Over this I/PO port, you can set all four PWM inputs for both bridges. The Decay mode can be set between the slow decay for brake or high-side re-circulation and smart tune dynamic Decay mode. By setting the logic states on Mode2 of the motor driver, you can choose between the phase/enable and PWM interfaces. You can also determine the fault recovery method between the latch-off and auto-recovery. Finally, using the PCA9538A, you can monitor the fault indication of the motor driver.

H-Bridge 16 Click uses a standard 2-wire I2C interface of the PCA9538A to allow the host MCU to control the motor driver. You can reset the PCA9538A over the RST pin and read the interrupts of the motor driver through the I/O port over the INT pin. The I2C address can be selected over the ADDR SEL jumper. The host MCU can control the sleep mode of the motor driver directly over the SLP pin.

This Click board™ can operate with either 3.3V or 5V logic voltage levels selected via the VCC SEL jumper. This way, both 3.3V and 5V capable MCUs can use the communication lines properly. Also, this Click board™ comes equipped with a library containing easy-to-use functions and an example code that can be used as a reference for further development.

SPECIFICATIONS