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 product 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 package. It also integrates accurate current sensing and temperature sensing functionality to simplify system design and improve accuracy. The optimized PCB footprint helps reduce design time and simplify the overall system design.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Continuous Operating Current | 75 | A |
| System Efficiency at 30 A | > 95% | % |
| High-Frequency Operation | Up to 1.25 | MHz |
| Input Supply Voltage (VIN) | 4.5 - 16 | V |
| Driver Supply Voltage (VDD) | 4.5 - 5.5 | V |
| Gate Drive Voltage (PVDD) | 4.5 - 5.5 | V |
| Switching Frequency | Up to 1250 | kHz |
| Operating Junction Temperature | -40 to 125 | °C |
| Package Type | QFN-CLIP (RWJ) | - |
| Package Size | 5-mm × 6-mm | - |
| Pins | 41 | - |
| Thermal Resistance, Junction-to-Case | 7.4 | °C/W |
| Thermal Resistance, Junction-to-Board | 2.2 | °C/W |
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 continuous operating current capability of the CSD95485RWJ?
The CSD95485RWJ has a continuous operating current capability of 75 A.
- What is the system efficiency of the CSD95485RWJ at 30 A?
The system efficiency is over 95% at 30 A.
- What is the maximum high-frequency operation of the CSD95485RWJ?
The CSD95485RWJ can operate at frequencies up to 1.25 MHz.
- Does the CSD95485RWJ support diode emulation?
Yes, the CSD95485RWJ supports diode emulation function.
- What is the operating junction temperature range of the CSD95485RWJ?
The operating junction temperature range is -40°C to 125°C.
- What type of package does the CSD95485RWJ use?
The CSD95485RWJ uses a QFN-CLIP (RWJ) package with 41 pins.
- What are the dimensions of the CSD95485RWJ package?
The package dimensions are 5-mm × 6-mm.
- Is the CSD95485RWJ RoHS compliant?
Yes, the CSD95485RWJ is RoHS compliant with lead-free terminal plating and is halogen free.
- What are some common applications of the CSD95485RWJ?
Common applications include multiphase synchronous buck converters, high-frequency applications, POL DC-DC converters, memory and graphic cards, and desktop and server VR12.x / VR13.x V-core synchronous buck converters.
- Does the CSD95485RWJ have integrated temperature sensing?
Yes, the CSD95485RWJ has temperature compensated bi-directional current sense and analog temperature output.
