TI UCD7201PWP

The UCD7201 is a member of the UCD7K family of digital control compatible drivers for applications utilizing digital control techniques or applications requiring fast local peak current limit protection. The UCD7201 includes dual low-side ±4-A highcurrent MOSFET gate drivers. It allows the digital power controllers such as UCD9110 or UCD9501 to interface to the power stage in double ended topologies. It provides a cycle-by-cycle current limit function for both driver channels, a programmable threshold and a digital output current limit flag which can be monitored by the host controller. With a fast cycle-by-cycle current limit protection, the driver can turn off the power stage in the event of an overcurrent condition. For fast switching speeds, the UCD7201 output stages use the TrueDrive output architecture, which delivers rated current of ±4 A into the gate of a MOSFET during the Miller plateau region of the switching transition. It also includes a 3.3-V, 10-mA linear regulator to provide power to the digital controller. The UCD7K driver family is compatible with standard 3.3-V I/O ports of DSPs, Microcontrollers, or ASICs. UCD7201 is offered in a PowerPAD HTSSOP-14 package.

• Adjustable Current Limit Protection
• 3.3-V, 10-mA Internal Regulator
• DSP/μC Compatible Inputs
• Dual ±4-A TrueDrive High Current Drivers
• 10-ns Typical Rise and Fall Times with 2.2-nF Loads
• 20-ns Input-to-Output Propagation Delay
• 25-ns Current Sense-to-Output Propagation Delay
• Programmable Current Limit Threshold
• Digital Output Current Limit Flag
• 4.5-V to 15-V Supply Voltage Range
• Rated from -40°C to 105°C

• Digitally Controlled Power Supplies
• DC/DC Converters
• Motor Controllers
• Line Drivers