CSD95430 Series
90-A peak continuous-current synchronous-buck NexFET™ smart power stage
Manufacturer: Texas Instruments
Catalog
90-A peak continuous-current synchronous-buck NexFET™ smart power stage
Key Features
• Active current balancing between paralleled phases sharing a single PWM inputPeak continuous current: 90-ASystem efficiency: > 95% at 30-AHigh-frequency operation: 1.25-MHzDiode emulation function to enable efficiency discontinuous conduction mode (DCM) operationTemperature compensated bi-directional current senseAnalog temperature outputFault monitoringPWM signal compatible: 3.3 V and 5 VTri-state PWM inputIntegrated bootstrap switchOptimized dead-time for shoot-through protectionHigh-density industry common QFN 5-mm x 6-mm footprintUltra-low inductance packageSystem-optimized PCB footprintThermally enhanced topside coolingRoHS compliant - lead-free terminal platingHalogen freeActive current balancing between paralleled phases sharing a single PWM inputPeak continuous current: 90-ASystem efficiency: > 95% at 30-AHigh-frequency operation: 1.25-MHzDiode emulation function to enable efficiency discontinuous conduction mode (DCM) operationTemperature compensated bi-directional current senseAnalog temperature outputFault monitoringPWM signal compatible: 3.3 V and 5 VTri-state PWM inputIntegrated bootstrap switchOptimized dead-time for shoot-through protectionHigh-density industry common QFN 5-mm x 6-mm footprintUltra-low inductance packageSystem-optimized PCB footprintThermally enhanced topside coolingRoHS compliant - lead-free terminal platingHalogen free
Description
AI
The CSD95430RRBNexFET™ power stage is a highly optimized design for use in a high-power, high-density synchronous buck converter. This product integrates the driver IC and power MOSFETs to complete the power stage switching function. This combination produces high-current, high-efficiency, and high-speed switching capability in a small 5-mm × 6-mm outline package. It also integrates the accurate current sensing and temperature sensing functionality to simplify system design and improve accuracy. In addition, the PCB footprint has been optimized to help reduce design time and simplify the completion of the overall system design. This power stage features an active current balance feature which allows multiple power stages to be paralleled off a single PWM input. This enables phase multiplication for very high current applications without the need for a similarly high phase count controller. The active current balance ensures that the multiplied phases share current evenly so no significant derating of current capability is needed when paralleling phases.
The CSD95430RRBNexFET™ power stage is a highly optimized design for use in a high-power, high-density synchronous buck converter. This product integrates the driver IC and power MOSFETs to complete the power stage switching function. This combination produces high-current, high-efficiency, and high-speed switching capability in a small 5-mm × 6-mm outline package. It also integrates the accurate current sensing and temperature sensing functionality to simplify system design and improve accuracy. In addition, the PCB footprint has been optimized to help reduce design time and simplify the completion of the overall system design. This power stage features an active current balance feature which allows multiple power stages to be paralleled off a single PWM input. This enables phase multiplication for very high current applications without the need for a similarly high phase count controller. The active current balance ensures that the multiplied phases share current evenly so no significant derating of current capability is needed when paralleling phases.
