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STMicroelectronics STL50NH3LL
- Part No.:
- STL50NH3LL
- Manufacturer:
- STMicroelectronics
- Category:
- FETs, MOSFETs
- Package:
- 8-PowerVDFN
- Datasheet:
-
STL50NH3LL.pdf
- Description:
- MOSFET N-CH 30V 27A POWERFLAT
- Quantity:
- Payment:
- Shipping:
Inventory:1,441
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Product details
Overview
STL50NH3LL from STMicroelectronics is an N-channel Power MOSFET optimized for high-efficiency switching in low-voltage DC-DC converters and motor control stages, featuring 30 V VDS, 0.011 Ω RDS(on) at VGS = 10 V, 13 A continuous drain current, and ultra-low 9 nC total gate charge in a PowerFLAT™ (6×5) package. It delivers minimal conduction and switching losses in space-constrained power stages.
For engineers reviewing the STL50NH3LL datasheet, STL50NH3LL pinout, STL50NH3LL application, or STL50NH3LL equivalent, key selection criteria include its low-profile thermal performance (Rthj-case = 2.08 °C/W), avalanche ruggedness (EAS = 150 mJ), and gate drive compatibility with 4.5 V logic-level controllers in battery-powered systems.
Technical Context
This device implements ST's STripFET™ III process to achieve enhanced die-to-footprint ratio and reduced gate charge without compromising ruggedness. Its low threshold voltage (VGS(th) = 1 V min) enables direct drive from 3.3 V microcontrollers, while the integrated source-drain diode supports synchronous rectification with trr = 24 ns and Qrr = 17.4 nC.
The PowerFLAT™ (6×5) package uses exposed drain pad for low thermal resistance and eliminates wire bonds-enabling higher current density and improved reliability under thermal cycling. Its 1 mm max height and ECOPACK® lead-free construction meet industrial and portable equipment mechanical and environmental requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDS | 30 V - Supports 24 V nominal bus systems with margin for transients |
| RDS(on) | 0.011 Ω @ VGS = 10 V - Enables <143 mW conduction loss at 13 A |
| Qg | 9 nC typ - Reduces gate driver power demand and switching transition time |
| ID (cont) | 13 A @ TC = 25°C - Rated for sustained load in compact heatsinkless PCB layouts |
| EAS | 150 mJ - Withstands unclamped inductive energy during fault conditions |
| trr | 24 ns - Minimizes reverse recovery loss in hard-switched topologies |
| Rthj-case | 2.08 °C/W - Allows >25 W power dissipation with modest case cooling |
Pinout & Package
STL50NH3LL uses the PowerFLAT™ (6×5) package: surface-mount, 5-pin, exposed drain pad (pin 1–3 = source, pin 4 = gate, pin 5 = drain). Package height ≤ 0.93 mm, footprint 6.0 × 5.0 mm, JEDEC-compliant ECOPACK® lead-free finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1–3 (Source) | Source connection (common terminal) | Internally tied; provides low-inductance return path and thermal conduction to PCB copper |
| 4 (Gate) | Control input | High-impedance MOS gate requiring <9 nC charge for full enhancement |
| 5 (Drain) | Power output / high-side switch node | Exposed metal pad-must be soldered to large PCB copper area for thermal and electrical performance |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low gate charge | 9 nC total charge enables fast switching with minimal driver loss in 1–2 MHz SMPS |
| Low-profile PowerFLAT™ | 0.93 mm max height saves vertical space in slim consumer and automotive modules |
| Enhanced avalanche rating | 150 mJ single-pulse EAS improves robustness in motor drive and relay snubbing |
| Logic-level gate threshold | VGS(th) = 1 V min allows direct interface with 3.3 V MCU GPIO without level shifters |
| Thermally optimized package | Rthj-case = 2.08 °C/W supports >25 W dissipation with PCB copper as primary heatsink |
Applications
| Battery-Powered Motor Control | DC-DC Synchronous Buck Converter |
|---|---|
Use Scenario: H-bridge driver for 12–24 V brushed DC motors in cordless power tools. IC Role / Device Role / Timing Role: Low-side switch with fast turn-off (tf = 8.5 ns) to minimize shoot-through risk during PWM commutation. Use Value: 0.011 Ω RDS(on) reduces I²R loss by >30% vs. legacy 0.018 Ω devices, extending runtime per charge cycle. | Use Scenario: High-efficiency 24 V → 5 V/10 A buck converter in industrial IoT gateways. IC Role / Device Role / Timing Role: Synchronous rectifier with low Qrr (17.4 nC) to suppress body-diode conduction loss at light loads. Use Value: 24 ns trr and 1.3 V VSD enable >94% efficiency at 500 kHz switching frequency. |
| Automotive Body Control Module (BCM) | USB-C PD Power Path Switch |
Use Scenario: Load switch for 12 V accessory circuits (e.g., LED lighting, solenoid drivers) in non-safety-critical BCMs. IC Role / Device Role / Timing Role: High-side or low-side power switch controlled via CAN/LIN-linked MCU with 3.3 V GPIO. Use Value: 1 V VGS(th) ensures reliable turn-on across temperature (-40°C to +125°C) without external bias. | Use Scenario: Input power path switch enabling dual-source (adapter/battery) selection in USB-C PD power banks. IC Role / Device Role / Timing Role: Bidirectional load switch supporting reverse current blocking and fast overcurrent response. Use Value: 108 A pulsed ID capability handles 20 V/5 A PD fault currents without latch-up or thermal runaway. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar N-channel power MOSFET applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| IRLML6344TRPBF | RDS(on) = 0.022 Ω @ 4.5 V; Qg = 6.2 nC; SO-8 package | Higher RDS(on) increases conduction loss; smaller package limits thermal handling | Preferred only when SO-8 footprint compatibility is mandatory and <8 A current suffices |
| DMN3025LSD-13 | RDS(on) = 0.025 Ω @ 4.5 V; Qg = 10.5 nC; PowerDI™ 3330 package | Higher on-resistance and larger gate charge reduce efficiency in high-current, high-frequency use | Suitable for cost-sensitive designs where 30 V rating and RoHS compliance are primary constraints |
Compared with IRLML6344TRPBF and DMN3025LSD-13, STL50NH3LL offers superior thermal performance (2.08 °C/W vs. >50 °C/W), lower RDS(on), and higher pulsed current capability-making it optimal for thermally constrained, high-efficiency 10–13 A switching nodes.
Availability
STL50NH3LL is available at Aetrix Electronics and suitable for battery-powered motor control, DC-DC synchronous buck converters, and automotive body control modules requiring stable component supply and long-term lifecycle support.
Supply support for STL50NH3LL includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing analog, digital, and mixed-signal ICs for industrial, automotive, and consumer markets.
STL50NH3LL belongs to ST's STripFET™ Power MOSFET product line, engineered specifically for high-efficiency, high-density power conversion in space- and thermal-constrained applications.
FAQ
Is STL50NH3LL suitable for 3.3 V gate drive?
Yes. With a minimum gate threshold voltage of 1 V and guaranteed RDS(on) of 0.013 Ω at VGS = 4.5 V, STL50NH3LL fully enhances using standard 3.3 V logic outputs. Its low Qg (9 nC) also minimizes driver loading, enabling clean switching without external gate buffers in most cases.
What is the maximum continuous drain current at 100°C case temperature?
The datasheet specifies ID = 8.1 A at TC = 100°C, based on thermal resistance junction-to-PCB (Rthj-pcb = 31.3 °C/W) and safe operating area limits. This value assumes mounting on a 1-inch² FR-4 board with 2 oz copper, and must be derated linearly above 100°C.
Does STL50NH3LL have avalanche capability, and how is it rated?
Yes. STL50NH3LL is rated for unclamped inductive switching with a single-pulse avalanche energy (EAS) of 150 mJ at Tj = 25°C. This is validated per JEDEC JESD24-11 and supports robust operation in motor drive and relay driving applications where inductive kickback occurs.
Can STL50NH3LL be used in synchronous rectification topologies?
Yes. Its integrated source-drain diode has trr = 24 ns and Qrr = 17.4 nC at 150°C, enabling efficient synchronous rectification in buck and flyback converters. Combined with low RDS(on), it reduces body-diode conduction loss and improves light-load efficiency versus Schottky alternatives.
STL50NH3LL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- STripFET™
- Package/Case:
- 8-PowerVDFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- FET Type:
- N-Channel
- Technology:
- MOSFET (Metal Oxide)
- Drain to Source Voltage (Vdss):
- 30 V
- Current - Continuous Drain (Id) @ 25°C:
- 27A (Tc)
- Drive Voltage (Max Rds On, Min Rds On):
- 4.5V, 10V
- Rds On (Max) @ Id, Vgs:
- 13mOhm @ 6.5A, 10V
- Vgs(th) (Max) @ Id:
- 1V @ 250µA
- Gate Charge (Qg) (Max) @ Vgs:
- 12 nC @ 4.5 V
- Vgs (Max):
- ±16V
- Input Capacitance (Ciss) (Max) @ Vds:
- 965 pF @ 25 V
- FET Feature:
- -
- Power Dissipation (Max):
- 60W (Tc)
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PowerFlat™ (5x6)
STL50NH3LL FAQ
1.How can I place an order for STL50NH3LL through Aetrix?
Please submit a Request for Quotation (RFQ) for STL50NH3LL on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for STL50NH3LL reliable?
The price and inventory of STL50NH3LL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STL50NH3LL is usually 5 days.
3.What payment methods are accepted for STL50NH3LL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STL50NH3LL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STL50NH3LL?
STL50NH3LL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STL50NH3LL order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for STL50NH3LL?
For technical support, including STL50NH3LL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STL50NH3LL requirements.
6.How does Aetrix verify that STL50NH3LL is sourced from the original manufacturer or authorized distributors?
All STL50NH3LL products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that STL50NH3LL meets industry standards.
7.What is the process for return or replacement of STL50NH3LL?
All STL50NH3LL units undergo pre-shipment inspection (PSI). If there is an issue with STL50NH3LL, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The STL50NH3LL part is unused and in its original packaging.
Return procedure for STL50NH3LL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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