L6229D

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The L6229D is an integrated power switch designed by STMicroelectronics. It is a high-voltage and high-current driver, commonly employed in applications where the control of an inductive load or a DC motor is desired, such as home appliance motors or industrial automation systems.This power switch typically features an n-channel power MOSFET gate driver and two half bridges, each one capable of independently driving two power MOSFETs, two bipolar transistors and one IGBT/STT. It also incorporates a suite of protection features, enabling it to carry out its operational task reliably, even in adverse conditions.The L6229D can be used to supply high-voltage AC/DC motors, such as those typically found in home appliances, namely refrigerators, washing machines and dishwashers, as well as industrial automation systems. The chip itself is designed to power up low-voltage DC motors and drive them up to a maximum of 100 V.The standard package of the L6229D consists of a 24SOIC , a 20TFSOP, a 20VQFN and a ton of DIP 24 packages.

The L6229D is based on a dual pre-driver architecture and can drive and control a wide variety of loads including brushed DC motors, stepper motors, brushed AC motors, brushed DC servo motors, stepper servo motors, brushless DC motors and absolute position encoders. The pre-driver architecture of the L6229D allows it to control two independent half-bridge outputs, thus providing even better control of the motor.

The L6229D provides a very accurate current control, allowing you to adjust the amount of current demanded by the electrical load, thus offering a more precise control than traditional solutions such as resistor-based solutions. This is especially useful in applications that require very precise control over the current, such as servo motor control, which is typically applied in robotics, industrial automation systems and motor control systems.

The chip also provides a suite of protection features, providing a very reliable system even in the case of an overload or a short circuit. The device can monitor current and temperature levels, providing overcurrent protection by reducing the output current accordingly. It also offers thermal shutdown when the chip reaches a certain temperature level, thus protecting the components from a sudden power surge.

The L6229D also features built-in adjustable under-voltage lockout, so when the output voltage drops too low, it automatically disables the output and prevents further current flow.In addition, the L6229D supports soft startup and spreads current over time, making sure that the maximum current is never exceeded. This way, it prevents inrush current and makes sure that the system does not overload when the power is turned on.

Overall, the L6229D is an integrated power switch designed specifically to provide reliable control and protection of the motor, making it a perfect choice for applications aiming to control motors, such as home appliances motors or industrial automation systems. The device offers a very reliable system, featuring accurate current control and a suite of protection features.

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