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HomeProductsIntegrated Circuits (ICs)PMIC - Full, Half-Bridge DriversCSD95482RWJT
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CSD95482RWJT - Texas Instruments

Manufacturer Part Number
CSD95482RWJT
Manufacturer
Texas Instruments
Allelco Part Number
32D-CSD95482RWJT
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
9,841 pcs available, New & Original
Parts Description
IC HALF BRIDGE DRIVER 40A 41VQFN
Package
41-VQFN-CLIP (5x6)
Data sheet
CSD95482RWJT.pdf

HTML Datasheet

CSD95482RWJ Datasheet.pdf

PCN Assembly/Origin

CSDYYY 19/Dec/2017.pdf
RoHs Status
ROHS3 Compliant
Compare
Our certification
In stock: 9841
  • Unit Price: $4.693
  • Subtotal: $0.00

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Quantity Unit Price Ext. Price
1+ $4.693 $4.69
10+ $4.117 $41.17
30+ $3.766 $112.98
100+ $3.471 $347.10
The above prices does not include taxes and freight rates, which will be calculated on the order pages.

Specifications

CSD95482RWJT Tech Specifications
Texas Instruments - CSD95482RWJT technical specifications, attributes, parameters and parts with similar specifications to Texas Instruments - CSD95482RWJT

Product Attribute Attribute Value
Manufacturer Texas Instruments
Voltage - Supply 4.5V ~ 5.5V
Voltage - Load 4.5V ~ 16V
Technology Power MOSFET
Supplier Device Package 41-VQFN-CLIP (5x6)
Series NexFET™
Rds On (Typ) -
Package / Case 41-PowerTFQFN
Package Tape & Reel (TR)
Output Configuration Half Bridge (3)
Product Attribute Attribute Value
Operating Temperature -40°C ~ 125°C (TJ)
Mounting Type Surface Mount
Load Type Inductive, Capacitive
Interface PWM
Features Bootstrap Circuit
Fault Protection Shoot-Through
Current - Peak Output 60A
Current - Output / Channel 40A
Base Product Number CSD95482
Applications Synchronous Buck Converters

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
RoHs Status ROHS3 Compliant
Moisture Sensitivity Level (MSL) 2 (1 Year)
REACH Status REACH Affected
ECCN EAR99
HTSUS 8542.39.0001

Parts Introduction

Manufacturer Part Number

CSD95482RWJT

Manufacturer

Texas Instruments

Introduction

The CSD95482RWJT is a high-performance half-bridge driver designed utilizing Texas Instruments’ NexFET™ technology, catering specifically to synchronous buck converter applications.

Product Features and Performance

Incorporates NexFET™ technology

Half Bridge (3) output configuration

Utilizes a bootstrap circuit for efficient operation

Includes fault protection against shoot-through

Features high-performance Power MOSFET technology

Supports PWM interface for enhanced control

Product Advantages

High current capability with 40A output per channel and a peak of 60A

Robust fault protection ensures increased device reliability and longevity

Compact 41-PowerTFQFN package enhances space-saving in design

Key Technical Parameters

Output / Channel Current: 40A

Peak Output Current: 60A

Supply Voltage: 4.5V 5.5V

Load Voltage: 4.5V 16V

Operating Temperature: -40°C to 125°C

Quality and Safety Features

Shoot-through fault protection

Operates efficiently over a wide temperature range ensuring stability

Compatibility

Designed for use with inductive and capacitive loads

Application Areas

Synchronous Buck Converters

Product Lifecycle

Currently marked as active

No indication of discontinuation, ensuring continued availability and support

Several Key Reasons to Choose This Product

Utilizes advanced NexFET™ technology for superior performance and efficiency

Compact and robust design suitable for dense PCB layouts

Wide operating temperature range ensures reliability in various environments

High current handling capacity suited for demanding applications

Integrated fault protection features enhance both safety and durability

Frequently Asked Questions(FAQ)

How does the CSD95482RWJT handle shoot-through current in high-frequency buck converter applications, and what design precautions are necessary to ensure safe operation?
The CSD95482RWJT incorporates internal shoot-through protection circuitry designed to prevent simultaneous conduction of the high-side and low-side MOSFETs, which is critical in synchronous buck converters operating above 500 kHz. This feature reduces the risk of destructive shoot-through events during dead time transitions. However, external gate resistance selection and proper PCB layout remain essential to minimize parasitic inductance and ensure precise timing control. Engineers should validate switching waveforms under worst-case load and temperature conditions to confirm that dead times are sufficient and that the protection mechanism activates appropriately without introducing excessive propagation delay.
What is the maximum allowable junction temperature for the CSD95482RWJT, and how does thermal performance impact long-term reliability in compact power supply designs?
The CSD95482RWJT operates reliably up to a maximum junction temperature of 125°C, as specified in its thermal characteristics. In high-current applications exceeding 30A continuous output, junction temperatures can rise significantly due to conduction and switching losses, especially when using small-footprint PCBs with limited copper area. Thermal vias under the exposed pad and adequate ground plane utilization are recommended to maintain junction temperature below 100°C under full load. Prolonged operation near the 125°C limit may accelerate electromigration and reduce mean time between failures, particularly in automotive or industrial environments.
Can the CSD95482RWJT be used in interleaved buck converter topologies, and what adjustments are required compared to single-stage implementations?
Yes, the CSD95482RWJT supports interleaved buck configurations by enabling phase staggering through separate PWM inputs. Each half-bridge can drive an independent inductor, improving efficiency and reducing input/output ripple. However, careful attention must be paid to gate drive timing alignment and bootstrap capacitor sizing to prevent voltage droop during rapid phase transitions. Additionally, inter-phase coupling effects may require simulation or empirical tuning to optimize transient response and EMI performance.
How does the peak output current capability of 60A compare to typical continuous current demands in automotive DC-DC applications, and when is this margin beneficial?
While the CSD95482RWJT supports peak currents up to 60A, most automotive systems such as infotainment or ECU power supplies operate continuously below 40A. The 60A peak rating provides headroom for inrush currents during cold cranking or transient load steps, enhancing system robustness. This margin allows designers to implement aggressive transient responses without relying solely on bulk capacitance, thereby simplifying filter design and reducing component count in space-constrained modules.
What role does the bootstrap circuit play in the CSD95482RWJT’s operation, and how should it be implemented for stable high-side gate drive?
The integrated bootstrap circuit enables efficient high-side MOSFET driving by charging a capacitor from the low-side rail during the dead time. For reliable operation across the full supply range (4.5V–5.5V), the bootstrap capacitor must be sized to maintain at least 4V across it under worst-case duty cycles. A value of 100nF to 470nF is typical, with low-ESR ceramic capacitors placed close to the driver pins. Failure to provide adequate charge replenishment leads to degraded gate drive voltage and increased Rds(on), resulting in higher conduction losses and potential thermal issues.
How does the CSD95482RWJT differ from other NexFET™ drivers like the CSD95481 or CSD95483 in terms of current handling and package compatibility?
Compared to the CSD95481 and CSD95483, the CSD95482RWJT offers identical peak output current (60A) and similar continuous current (40A), but features a refined thermal performance profile optimized for 5x6 mm QFN packaging. The CSD95482 variant typically includes enhanced fault reporting capabilities and improved propagation delay matching, making it preferable for tightly regulated multi-phase systems. All three share the same pinout and footprint, enabling drop-in replacement, but the CSD95482 is better suited for applications requiring tighter timing margins and advanced diagnostics.
What are the implications of using the CSD95482RWJT in a 12V-to-3.3V buck converter with 50% duty cycle at 500kHz, and how do switching losses scale with frequency?
At a 500kHz switching frequency and 50% duty cycle, the CSD95482RWJT experiences moderate switching losses primarily due to gate charge energy dissipation and MOSFET transition times. Assuming typical gate charges (Qg ≈ 120 nC) and a 5V drive voltage, gate loss per switch is approximately 1.5 mW per transition, totaling 6 mW per cycle for both high- and low-side devices. Over 500kHz, this equates to 3W of gate drive loss—non-negligible in thermally constrained designs. Therefore, minimizing gate resistance and selecting MOSFETs with low Qg becomes critical to maintaining overall efficiency above 90%.
Is the CSD95482RWJT suitable for use in intrinsically safe or explosion-proof environments, and does its RoHS compliance affect hazardous material handling?
The CSD95482RWJT is RoHS3 compliant and free from restricted substances such as lead, mercury, and cadmium, supporting environmental sustainability standards. However, RoHS compliance does not confer intrinsic safety certification; additional measures such as overcurrent protection, thermal shutdown, and isolation barriers are required for use in hazardous locations. Designers must consult local regulations and obtain appropriate certifications (e.g., ATEX or IECEx) before deploying the device in explosive atmospheres, regardless of its standard industrial qualification.
How should the CSD95482RWJT be mounted and tested to meet automotive-grade reliability requirements, given its MSL rating and package type?
As an MSL2 component with a moisture sensitivity level of 2 (1 year floor life), the CSD95482RWJT requires controlled storage and handling to prevent popcorning during reflow. For automotive applications, it should be assembled using a five-zone reflow profile with peak temperature below 260°C and dwell time within JEDEC J-STD-020 limits. Post-assembly, visual inspection and functional testing under accelerated thermal cycling (-40°C to +125°C) are recommended to validate solder joint integrity and interface stability over time.
What diagnostic features are embedded in the CSD95482RWJT to assist with system monitoring, and how can they inform fault detection strategies?
The CSD95482RWJT includes built-in shoot-through detection that disables outputs if cross-conduction is sensed, preventing catastrophic failure. While it lacks overt fault reporting pins like dedicated status lines, the absence of oscillation during normal operation and clean dead-time behavior serve as indirect indicators of proper function. System-level monitoring should include input voltage supervision and output current sensing to complement the driver’s internal protections, forming a layered defense against overloads and short circuits.
Can the CSD95482RWJT operate reliably from a 5V logic input while driving a MOSFET rated for 12V gate threshold, and what risks might arise?
Yes, the CSD95482RWJT accepts a 4.5V to 5.5V logic input and can drive 12V-rated enhancement-mode MOSFETs effectively when powered from a 5V supply. However, driving such a MOSFET with only 5V may result in suboptimal Rds(on)—typically 10–20% higher than with a fully-enhancing 10V gate drive. This increases conduction losses and heat generation, especially in continuous high-current modes. For best performance, consider using a gate driver booster or selecting a logic-level MOSFET with lower Vth to ensure full enhancement even at 5V drive.
How does the 41-VQFN-CLIP (5x6) package influence thermal management compared to larger alternatives like TO-220-based drivers?
The 41-pin VQFN-CLIP package of the CSD95482RWJT provides excellent thermal conductivity through its exposed thermal pad, enabling efficient heat spreading into the PCB. Compared to discrete TO-220 solutions, it offers superior power density and reduced parasitic inductance, but with higher thermal impedance if not properly managed. Effective cooling requires multiple thermal vias connecting the pad to an internal or bottom-layer ground plane with substantial copper coverage. Without this, localized hotspots can form even at moderate power levels, limiting usable output current.
What precautions should be taken when paralleling multiple CSD95482RWJT units for higher current delivery, and does the part support master-slave synchronization?
The CSD95482RWJT does not have dedicated synchronization inputs, so paralleling multiple units requires careful gate signal balancing to avoid current imbalance due to slight delays or mismatched propagation times. Shared clocking via external PWM signals helps, but each channel must be compensated individually. Additionally, individual feedback loops and output filtering are advised to decouple interactions. Due to lack of built-in current sharing mechanisms, this approach is generally discouraged unless supported by comprehensive simulation and prototype validation.
How does the operating temperature range (-40°C to +125°C) impact performance in industrial versus consumer applications, and what derating practices apply?
The wide operating temperature span allows the CSD95482RWJT to function reliably in both harsh industrial controls and extended-temperature consumer electronics. However, at elevated ambient temperatures (e.g., >85°C), internal resistance increases slightly due to semiconductor mobility reduction, leading to higher conduction losses. To maintain reliability, engineers often derate the maximum output current by 10–15% above 100°C ambient. Monitoring junction temperature through external sensors or modeling tools is advisable for long-duration deployments.
What interface considerations apply when integrating the CSD95482RWJT with microcontrollers lacking complementary PWM outputs, and what workarounds exist?
Since the CSD95482RWJT expects complementary PWM signals for proper half-bridge operation, MCUs without native dead-time insertion must generate these signals externally. One solution is to use a dedicated gate driver IC with programmable dead time or implement a software-based delay loop in the MCU with calibrated oscillator accuracy. Alternatively, FPGA-based controllers offer fine-grained timing control. Ensuring minimal jitter (<10 ns) in the PWM edges is crucial to prevent shoot-through and maintain efficiency.
How does the absence of explicit Rds(on) data in the datasheet affect practical evaluation of conduction losses in real-world designs?
The lack of tabulated Rds(on) values forces designers to rely on typical MOSFET characteristics rather than guaranteed parameters. In practice, total conduction loss depends more on the selected external MOSFET than the driver itself. However, the CSD95482RWJT is optimized to minimize gate drive losses and support fast turn-on/off, indirectly influencing effective Rds(on) by ensuring full enhancement. Loss estimation should therefore focus on MOSFET datasheet curves under actual Vgs and Id conditions, combined with thermal modeling of the complete power stage.
What environmental and regulatory factors influence the global availability and documentation of the CSD95482RWJT, given its ECCN classification?
Classified under ECCN EAR99, the CSD95482RWJT is generally unrestricted for export worldwide, facilitating international sourcing. However, REACH status indicates it contains substances of very high concern (SVHC), requiring suppliers to provide candidate list disclosures upon request. Documentation consistency varies by region, but Texas Instruments maintains uniform technical specifications across markets. Always verify regional compliance requirements—especially in EU and APAC markets—before large-scale procurement.
How can the CSD95482RWJT contribute to EMI mitigation in switching power supplies, and what layout practices enhance electromagnetic compatibility?
The integrated bootstrap circuitry and minimized propagation delay help reduce ringing and overshoot, contributing to cleaner switching edges. To further suppress EMI, place input/output capacitors close to the driver, use short gate traces with controlled impedance, and avoid routing sensitive analog signals near high-current paths. A star-ground topology and proper shielding of feedback networks also improve immunity. These practices, combined with spread-spectrum modulation if available upstream, help meet CISPR 22/25 radiated emission limits in commercial and automotive systems.

Parts with Similar Specifications

The three parts on the right have similar specifications to Texas Instruments CSD95482RWJT

Product Attribute CSD95485RWJT CSD95482RWJ CSD95480RWJT CSD95481RWJ
Part Number CSD95485RWJT CSD95482RWJ CSD95480RWJT CSD95481RWJ
Manufacturer Texas Instruments Texas Instruments Texas Instruments Texas Instruments
Mounting Type - Surface Mount Through Hole Surface Mount
Voltage - Supply - - - -
Fault Protection - - - -
Voltage - Load - - - -
Operating Temperature - -40°C ~ 85°C 0°C ~ 70°C -40°C ~ 85°C
Series - - - -
Current - Output / Channel - - - -
Features - - - Simultaneous Sampling
Package - Tape & Reel (TR) Tube Tape & Reel (TR)
Rds On (Typ) - - - -
Technology - - - -
Supplier Device Package - 196-NFBGA (12x12) 16-PDIP 64-VQFN (9x9)
Applications - - - -
Output Configuration - - - -
Current - Peak Output - - - -
Interface - - - -
Load Type - - - -
Base Product Number - DAC34H84 MAX500 ADS62P42
Package / Case - 196-LFBGA 16-DIP (0.300', 7.62mm) 64-VFQFN Exposed Pad

CSD95482RWJT Datasheet PDF

Download CSD95482RWJT pdf datasheets and Texas Instruments documentation for CSD95482RWJT - Texas Instruments.

HTML Datasheet
CSD95482RWJ Datasheet.pdf
PCN Assembly/Origin
CSDYYY 19/Dec/2017.pdf

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Customer Reviews

Evaluation: 10 Articles

  • Nath***rooks
    Jun 11, 2026

    Installed this power component in a converter board. Output remained stable under different load conditions and thermal performance was better than expected.

  • Dani***alkerTech
    Jun 1, 2026

    Product works, but setup took more effort than expected. Once configured the MCU ran reliably, although documentation support felt older compared with newer platforms. Fine for maintenance projects.

  • Yuki***aka88
    May 26, 2026

    信号通信プロジェクトでこのRS-485トランシーバーを使用しました。設置は簡単で、長距離ケーブルでも通信は安定していました。消費電力も、以前使用していたものより低くなっています。

  • Stev***aker
    May 20, 2026

    Solid diode for power rectification. Works well in switching circuits.

  • Bran***Lewis
    May 11, 2026

    Compact FPGA with good performance. Suitable for basic signal processing tasks.

  • Oliv***arris
    May 7, 2026

    Reliable I/O expander. Works well in embedded control applications.

  • Jess***Jones
    Apr 17, 2026

    It offers good value for the price, and the specifications match the description. I’ve been using it for two days with no issues, and I’ll definitely buy it again if I need it in the future.

  • Mich***Smith
    Apr 17, 2026

    Shipping was on time, the component pins are neatly aligned, and I tested 10 of them with a multimeter—all readings were within the specified range. Highly recommended.

  • Aman***arris
    Apr 3, 2026

    It was great—the entire process, from placing the order to receiving the package, went very smoothly. The components were consistent, the price was fair, and I had a very pleasant shopping experience.

  • Mike***nch
    Apr 3, 2026

    Better than expected! The resistance and capacitance readings were spot-on, and it passed the test on the first try. The service was reliable, and the packaging was thoughtful—I highly recommend it.

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Texas Instruments

CSD95482RWJT

Texas Instruments
32D-CSD95482RWJT

Want a better price? Add to Cart and Submit RFQ now, we'll contact you immediately.

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