Counterfeit and defect prevention
Visual and packaging inspection
Electrical performance verification
Service Email:
[email protected]
>
CSD97394Q4M
Texas Instruments
IC HALF BRIDGE DRIVER 20A 8VSON
20180 Pcs New Original In Stock
Half Bridge Driver Synchronous Buck Converters Power MOSFET 8-VSON (3.5x4.5)
Request Quote
(Ships tomorrow)
*Quantity
Minimum 1
Minimum 1
5.0 / 5.0
- (242 Ratings)
CSD97394Q4M
Product Overview
1253614
DiGi Electronics Part Number
CSD97394Q4M-DGManufacturer
Texas Instruments
CSD97394Q4M
Description
IC HALF BRIDGE DRIVER 20A 8VSONInventory
20180 Pcs New Original In Stock
Half Bridge Driver Synchronous Buck Converters Power MOSFET 8-VSON (3.5x4.5)
Quantity
Minimum 1
Minimum 1
Purchase and inquiry
Warranty & Returns
How to Order
Shipping & Delivery
Quality Assurance
365 - Day Quality Guarantee - Every part fully backed.
90 - Day Refund or Exchange - Defective parts? No hassle.
Limited Stock, Order Now - Get reliable parts without worry.
Global Shipping & Secure Packaging
Worldwide Delivery in 3-5 Business Days
100% ESD Anti-Static Packaging
Real-Time Tracking for Every Order
Secure & Flexible Payment
Credit Card, VISA, MasterCard, PayPal, Western Union, Telegraphic Transfer(T/T) and more
All payments encrypted for security
CSD97394Q4M Technical Specifications
Category
Power Management (PMIC), Full Half-Bridge (H Bridge) Drivers
Packaging
Cut Tape (CT) & Digi-Reel®
Series
NexFET™
Product Status
Active
Output Configuration
Half Bridge
Applications
Synchronous Buck Converters
Interface
PWM
Load Type
Inductive
Technology
Power MOSFET
Rds On (Typ)
-
Current - Output / Channel
20A
Current - Peak Output
45A
Voltage - Supply
4.5V ~ 5.5V
Voltage - Load
4.5V ~ 24V
Operating Temperature
-40°C ~ 150°C (TJ)
Features
Bootstrap Circuit
Fault Protection
Shoot-Through, UVLO
Mounting Type
Surface Mount
Package / Case
8-PowerVFDFN
Supplier Device Package
8-VSON (3.5x4.5)
Base Product Number
CSD97394
Datasheet & Documents
Manufacturer Product Page
CSD97394Q4M Specifications
HTML Datasheet
CSD97394Q4M-DG
Environmental & Export Classification
RoHS Status
ROHS3 Compliant
Moisture Sensitivity Level (MSL)
2 (1 Year)
REACH Status
REACH Unaffected
ECCN
EAR99
HTSUS
8542.39.0001
Additional Information
Other Names
296-40020-2
2156-CSD97394Q4M
CSD97394Q4M-DG
296-40020-1
296-40020-6
-296-40020-1-DG
TEXTISCSD97394Q4M
Standard Package
2,500
Reviews
5.0/5.0-(Show up to 5 Ratings)
de desembre 02, 2025
コストメリットと物流の効率性に大満足しています。
de desembre 02, 2025
Great prices and friendly staff—my shopping experience is always excellent.
de desembre 02, 2025
I am impressed with how smoothly DiGi Electronics handles shipping and delivery processes every time.
de desembre 02, 2025
The company's commitment to excellent after-sales service boosts customer confidence.
Publish Evalution
Evalution Message
Please enter your review message.
Please post honest comments and do not post ilegal comments.
Frequently Asked Questions (FAQ)
Can I replace the CSD97394Q4M with a competitor half-bridge driver like the Infineon 2EDN752x series in a 12V-to-1.2V 20A synchronous buck converter without redesigning the gate drive layout?
Direct replacement of the CSD97394Q4M with the Infineon 2EDN752x (e.g., 2EDN7524F) is not recommended without careful evaluation. While both are half-bridge drivers, the CSD97394Q4M integrates NexFET™ MOSFETs and a bootstrap circuit optimized for high-side switching up to 24V, whereas the 2EDN752x is a discrete driver requiring external MOSFETs. The CSD97394Q4M’s monolithic integration reduces parasitic inductance and simplifies layout, but the 2EDN752x offers flexibility in MOSFET selection. Replacing it would require re-evaluating gate resistance, dead-time control, and PCB parasitics—especially critical at 20A loads—and may compromise efficiency or introduce shoot-through risk if not retuned. Always validate thermal performance and switching waveforms before committing to a drop-in replacement.
What are the key reliability risks when operating the CSD97394Q4M near its maximum junction temperature of 150°C in a compact, poorly ventilated industrial power supply?
Operating the CSD97394Q4M near 150°C TJ significantly increases long-term reliability risks, including accelerated electromigration, bond wire fatigue, and degradation of the internal power MOSFETs’ Rds(on). Even though the device is rated for -40°C to 150°C, sustained operation above 125°C reduces mean time between failures (MTBF) and may trigger thermal runaway under transient overloads. To mitigate this, ensure adequate copper pour under the 8-VSON package for heat spreading, avoid stacking high-power components nearby, and consider active cooling if ambient temperatures exceed 85°C. TI recommends derating output current by 20% above 125°C TJ for mission-critical applications—monitoring TJ via thermal modeling or IR imaging is strongly advised during prototype testing.
How does the integrated bootstrap circuit in the CSD97394Q4M affect dead-time optimization compared to discrete half-bridge drivers like the UCC27211?
The CSD97394Q4M’s integrated bootstrap circuit simplifies dead-time control by automatically managing high-side gate charge replenishment, but it imposes tighter constraints on minimum off-time and duty cycle. Unlike the UCC27211—which allows external adjustment of bootstrap refresh timing—the CSD97394Q4M’s internal circuitry requires the low-side FET to conduct long enough to recharge the bootstrap capacitor, typically limiting maximum duty cycles below 95%. This can be problematic in low-input-voltage, high-step-down-ratio applications (e.g., 5V to 0.8V). Designers must ensure the PWM controller enforces sufficient low-side conduction time; otherwise, high-side gate voltage droops, increasing Rds(on) and conduction losses. Always verify bootstrap behavior under light-load and startup conditions using an oscilloscope.
Is the CSD97394Q4M suitable for replacing a failed discrete MOSFET + driver solution in a legacy 48V telecom buck converter, and what layout changes are critical?
The CSD97394Q4M is not suitable for direct replacement in a 48V input application, as its maximum load voltage rating is 24V—exceeding this risks catastrophic failure due to avalanche breakdown. Even if the nominal input is 48V with transient spikes, the internal power MOSFETs cannot withstand the stress. For 48V systems, consider TI’s CSD97374Q4M (30V-rated) or external-driver solutions like the LM5106 with discrete 100V MOSFETs. If retrofitting a lower-voltage system (≤24V), the CSD97394Q4M can simplify design, but critical layout changes are needed: minimize loop area between VIN, SW, and PGND, use a solid ground plane, and place input capacitors within 2mm of the package. Poor layout negates the benefits of integration and increases EMI and switching losses.
What shoot-through protection mechanisms does the CSD97394Q4M implement, and can it tolerate accidental PWM overlap during fault conditions in a motor drive application?
The CSD97394Q4M includes built-in shoot-through protection via internal dead-time control and cross-conduction prevention logic, which blocks both high-side and low-side FETs from turning on simultaneously. However, this protection is effective only within specified PWM input timing margins (see datasheet Figure 10). In motor drive applications with inductive kickback or noisy PWM signals, accidental overlap can still occur if input rise/fall times exceed 10ns or if ground bounce disrupts logic thresholds. The device’s UVLO also disables outputs during power-up/down transients. To enhance robustness, add external RC filters on PWM inputs and ensure tight grounding between the controller and CSD97394Q4M. Never rely solely on internal protection—validate fault response with injected glitches during HALT testing.
Quality Assurance (QC)
DiGi ensures the quality and authenticity of every electronic component through professional inspections and batch sampling, guaranteeing reliable sourcing, stable performance, and compliance with technical specifications, helping customers reduce supply chain risks and confidently use components in production.
CSD97394Q4M CAD Models
Texas Instruments CSD97394Q4M PCB symbols & footprints
productDetail
