Motor driver ics support high voltages
1 min read
Several new high speed motor driver ics have been introduced by Toshiba, all of which support high voltages and currents.
The TB67H400A two channel dc brush motor driver and the TB67S10xA series of stepper motor drivers are designed to deliver the high speed, voltage and currents demanded by applications such industrial automation, CNC machines, home appliances, ATMs and banknote counters.
All of the new drivers have a maximum 50V rating and a low on resistance of 0.5O.
The TB67H400A is a two channel motor driver ic for brush motors that supports a maximum output current of 4.0A per channel for a two channel drive.
A parallel channel control function also allows the device to operate as a single channel driver delivering 8.0A.
The module is available in four different package types to meet a number of specific customer requirements.
Small packages, such as the QFN48 and HTSSOP48 can be used for system downsizing, while continuous operation at high current is addressed by using a high power dissipation package such as HZIP25.
The TB67S10xA series offers low heat generation at high voltage and high current, making the devices suitable for designs where space is at a premium.
Fabricated using the latest high voltage analogue process, the range incorporates ADMD technology, which automatically optimises the drive current, improving switching speed and contributing to lower heat generation and higher drive efficiency.
Built in abnormality detection functions such as thermal shutdown circuitry, overcurrent shut down circuitry and undervoltage lockout circuits protect the TB67H400A, while built in abnormality detection flags protect the TB67S109A.
