Overview
The CSD95485RWJ NexFET™ power stage, produced by Texas Instruments, is a highly optimized design for use in high-power, high-density synchronous buck converters. This component integrates the driver IC and power MOSFETs to complete the power stage switching function, providing high-current, high-efficiency, and high-speed switching capability in a compact 5-mm × 6-mm QFN-CLIP package. It also includes accurate current sensing and temperature sensing functionality to simplify system design and improve accuracy.
Key Specifications
| Parameter | Minimum | Maximum | Unit |
|---|---|---|---|
| VIN to PGND | -0.3 | 20 | V |
| VDD (Driver supply voltage) | 4.5 | 5.5 | V |
| PVDD (Gate drive voltage) | 4.5 | 5.5 | V |
| VIN (Input supply voltage) | 4.5 | 16 | V |
| IOUT (Continuous output current) | - | 75 | A |
| IOUT-PK (Peak output current) | - | 105 | A |
| fSW (Switching frequency) | - | 1250 kHz | - |
| TJ (Operating junction temperature) | -55 | 150 | °C |
| Tstg (Storage temperature) | -55 | 150 | °C |
Key Features
- 75-A continuous operating current capability
- Over 95% system efficiency at 30 A
- High-frequency operation (up to 1.25 MHz)
- Diode emulation function
- Temperature compensated bi-directional current sense
- Analog temperature output
- Fault monitoring
- 3.3-V and 5-V PWM signal compatible
- Tri-state PWM input
- Integrated bootstrap switch
- Optimized dead time for shoot-through protection
- High-density QFN 5-mm × 6-mm footprint
- Ultra-low-inductance package
- System optimized PCB footprint
- Thermally enhanced topside cooling
- RoHS compliant – lead-free terminal plating
- Halogen free
Applications
- Multiphase synchronous buck converters
- High-frequency applications
- High-current, low-duty cycle applications
- POL DC-DC converters
- Memory and graphic cards
- Desktop and server VR12.x / VR13.x V-core synchronous buck converters
Q & A
- What is the maximum continuous output current of the CSD95485RWJ?
The maximum continuous output current is 75 A.
- What is the peak output current capability of the CSD95485RWJ?
The peak output current capability is 105 A.
- What is the maximum switching frequency of the CSD95485RWJ?
The maximum switching frequency is up to 1.25 MHz.
- Does the CSD95485RWJ support PWM signal compatibility?
Yes, it supports both 3.3-V and 5-V PWM signals.
- What is the operating junction temperature range of the CSD95485RWJ?
The operating junction temperature range is from -55°C to 150°C.
- Is the CSD95485RWJ RoHS compliant?
Yes, it is RoHS compliant with lead-free terminal plating and is also halogen free.
- What is the package type and size of the CSD95485RWJ?
The package type is VQFN-CLIP (RWJ) with a footprint of 5-mm × 6-mm.
- Does the CSD95485RWJ have integrated temperature sensing?
Yes, it includes an analog temperature output and temperature compensated bi-directional current sense.
- What are some of the key applications for the CSD95485RWJ?
Key applications include multiphase synchronous buck converters, high-frequency applications, POL DC-DC converters, and desktop/server VR12.x / VR13.x V-core synchronous buck converters.
- Does the CSD95485RWJ have fault monitoring capabilities?
Yes, it includes fault monitoring features.
