STL140N4F7AG - 40V N-Channel Power MOSFET | STMicroelectronics
MPN: STL140N4F7AG ✓ Hoạt độngSTL140N4F7AG Tóm tắt
A Power MOSFET is a type of field-effect transistor optimized for switching and amplification of power. It operates by controlling the conductivity between the drain and source terminals through an insulated gate voltage. Power MOSFETs are fundamental building blocks in power electronics, serving as switches in DC-DC converters, motor drivers, and load switches. They are part of the broader category of discrete semiconductors, which also includes diodes, IGBTs, and thyristors. The STL140N4F7AG leverages ST's advanced STripFET F7 technology, which reduces on-state resistance and switching losses, improving overall system efficiency.
Key features of the STL140N4F7AG include an ultra-low on-state resistance (RDS(on)) of 3.2 mOhm typical at 10V gate drive, which minimizes conduction losses. The device supports a wide gate drive voltage range from 4.5V to 20V, enabling compatibility with both 5V and 12V logic levels. It also features a fast body diode with low reverse recovery charge, reducing switching losses in bridge topologies. The PowerFLAT 5x6 package provides a low thermal resistance of 1.1 C/W (junction-to-case), allowing efficient heat dissipation in high-power applications.
The STL140N4F7AG is built using ST's STripFET F7 technology, which employs a trench-gate structure to achieve low RDS(on) and reduced gate charge. This technology enhances the figure of merit (FOM) compared to previous generations, enabling higher switching frequencies without compromising efficiency. The device also includes an integrated gate-source ESD protection, improving robustness in harsh environments. The PowerFLAT 5x6 package is designed for optimal thermal and electrical performance, with an exposed pad for direct heat sinking.
Typical applications include automotive systems such as electric power steering, battery management, and DC-DC converters, as well as industrial applications like motor control, power supplies, and load switches. The device's high current rating and low RDS(on) make it ideal for synchronous rectification in high-efficiency converters. In automotive environments, the AEC-Q101 qualification ensures reliability under extreme temperature and vibration conditions.
When designing with the STL140N4F7AG, ensure proper gate drive voltage to achieve the lowest RDS(on). The device is fully RoHS compliant and halogen-free, meeting environmental standards. For thermal management, use a sufficient copper area on the PCB to dissipate heat effectively, especially in continuous high-current operation.
Bộ thay thế dễ dàng lắp đặt cho STL140N4F7AG — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với STL140N4F7AG (cùng hình factor và footprint) — khác nhau ở Operating Temperature Range, Package.
STL140N4F7
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
STL140N4F7AG-1
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
IPB140N04S4-02
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
IRF1404Z
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
FDMS8880
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
STL140N4F7AG Tỷ lệ tối đa & tính chất điện
| Polarity | N-Channel |
| Drain-Source Voltage (VDS) | 40 V |
| Continuous Drain Current (ID) | 140 A |
| On-State Resistance (RDS(on)) | 3.2 mOhm @ VGS=10V |
| Gate-Source Voltage (VGS) | ±20 V |
| Gate Threshold Voltage (VGS(th)) | 2.5 V (min) |
| Total Gate Charge (Qg) | 60 nC |
| Input Capacitance (Ciss) | 4500 pF |
| Output Capacitance (Coss) | 800 pF |
| Reverse Transfer Capacitance (Crss) | 150 pF |
| Power Dissipation (PD) | 150 W |
| Khoảng nhiệt độ hoạt động | -55°C to +175°C |
| Hộp | PowerFLAT 5x6 |
| Kiểu lắp đặt | Surface Mount |
| AEC-Q101 Qualified | Yes |
| RoHS Compliant | Yes |
Cấu hình chân STL140N4F7AG
| Chân 1 | G — Gate |
| Chân 2 | S — Source |
| Chân 3 | S — Source |
| Chân 4 | S — Source |
| Chân 5 | D — Drain |
| Chân 6 | D — Drain |
| Chân 7 | D — Drain |
| Chân 8 | D — Drain |
| Chân 9 | D — Drain |
| Chân 10 | D — Drain |
| Chân 11 | D — Drain |
| Chân 12 | D — Drain |
Khu vực hoạt động an toàn
Ứng dụng tiêu biểu
STL140N4F7AG phù hợp cho 6 Áp dụngs: Automotive Electric Power Steering, Battery Management System (BMS), DC-DC Converter (Synchronous Buck), Motor Control (Industrial), Load Switch, Power Supply (Server/Telecom).
Automotive Electric Power Steering
The STL140N4F7AG is ideal for electric power steering (EPS) systems due to its high current capability (140A) and low RDS(on) of 3.2 mOhm, which minimizes power losses in the motor drive circuit. In an EPS system, the MOSFET is used in the H-bridge inverter that drives the steering assist motor. The low on-resistance ensures efficient operation, reducing heat generation and improving overall system reliability. The AEC-Q101 qualification guarantees performance under the harsh automotive environment, including temperature extremes and vibration. The fast body diode helps in freewheeling current management during PWM switching, reducing ringing and EMI. The PowerFLAT 5x6 package allows for compact PCB layouts, essential in space-constrained engine compartments. With a gate charge of 60 nC, the device can be driven efficiently at moderate switching frequencies, balancing efficiency and cost. The wide operating temperature range (-55°C to +175°C) ensures operation in both cold starts and under-hood heat. Overall, the STL140N4F7AG provides the robustness and efficiency required for EPS applications.
Được đề xuất
Battery Management System (BMS)
In battery management systems, the STL140N4F7AG is used for cell balancing and load switching. Its 40V rating is suitable for 12V to 24V battery packs, and the 140A current capability handles high discharge currents in power tools or electric vehicles. The low RDS(on) reduces voltage drop across the MOSFET, improving energy efficiency and extending battery life. The device's fast switching characteristics enable efficient PWM control for cell balancing, minimizing heat generation. The AEC-Q101 qualification ensures reliability in automotive BMS applications. The PowerFLAT 5x6 package with exposed pad aids in thermal management, crucial for high-current paths. The gate charge of 60 nC allows for simple gate drive circuits, reducing component count. The device's avalanche ruggedness, though not specified in the provided data, is typically robust in ST's F7 series, making it suitable for inductive load switching. Overall, the STL140N4F7AG provides a reliable and efficient solution for BMS power path management.
Được đề xuất
DC-DC Converter (Synchronous Buck)
The STL140N4F7AG is well-suited for synchronous buck converters, where it serves as the high-side or low-side switch. Its low RDS(on) of 3.2 mOhm minimizes conduction losses, while the low gate charge (60 nC) enables high-frequency operation, reducing the size of magnetic components. In a typical 12V to 5V buck converter, the MOSFET handles high current with minimal voltage drop, improving efficiency. The fast body diode reduces dead-time losses, and the low reverse recovery charge minimizes switching losses. The PowerFLAT 5x6 package provides excellent thermal performance, allowing continuous operation at high currents. The device's wide gate drive range (4.5V to 20V) makes it compatible with various controller ICs. The AEC-Q101 qualification is beneficial for automotive-grade converters. Overall, the STL140N4F7AG enhances converter efficiency and power density, making it ideal for server power supplies, telecom, and automotive applications.
Được đề xuất
Motor Control (Industrial)
In industrial motor control, the STL140N4F7AG is used in three-phase inverters for driving AC or BLDC motors. Its 140A current rating and 40V voltage rating are suitable for low-voltage motor drives. The low RDS(on) reduces heat generation in the power stage, allowing for smaller heatsinks. The fast switching speed enables high PWM frequencies, improving motor torque ripple and acoustic noise. The device's ruggedness, including avalanche capability, ensures reliable operation under inductive load switching. The PowerFLAT 5x6 package is easy to mount on PCBs with proper thermal vias. The gate charge of 60 nC allows for efficient gate drive design. The wide operating temperature range supports industrial environments. Overall, the STL140N4F7AG provides a cost-effective and efficient solution for industrial motor drives, from pumps to conveyor systems.
Được đề xuất
Load Switch
The STL140N4F7AG can be used as a high-side load switch in various systems, providing power distribution and protection. Its low RDS(on) ensures minimal voltage drop, maintaining supply voltage integrity. The device's fast switching allows for quick power cycling, useful in power sequencing. The 40V rating is suitable for 12V and 24V rails, and the 140A current capability handles high inrush currents. The AEC-Q101 qualification makes it suitable for automotive load switching, such as lighting or infotainment. The PowerFLAT 5x6 package with exposed pad aids in thermal dissipation during high-current operation. The gate drive requirements are simple, and the device can be driven directly by logic-level signals. Overall, the STL140N4F7AG provides a robust and efficient solution for load switching in automotive and industrial systems.
Được đề xuất
Power Supply (Server/Telecom)
In server and telecom power supplies, the STL140N4F7AG is used in the power stage of high-efficiency converters, such as LLC resonant or phase-shifted full-bridge topologies. Its low RDS(on) and fast switching reduce losses, improving overall efficiency and power density. The device's 40V rating is suitable for intermediate bus voltages (12V or 24V). The low gate charge enables high-frequency operation, reducing transformer size. The PowerFLAT 5x6 package allows for compact PCB layouts, essential in high-density power supplies. The device's thermal performance, with a junction-to-case thermal resistance of 1.1 C/W, ensures reliable operation at high power levels. The AEC-Q101 qualification is not required for non-automotive applications, but the device's robustness is beneficial. Overall, the STL140N4F7AG is an excellent choice for high-efficiency power supplies, meeting the demands of modern data centers and telecom infrastructure.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho STL140N4F7AG — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | STL140N4F7 | IPB140N04S4-02 | IRF1404Z | FDMS8880 |
|---|---|---|---|---|---|
| Package | PowerFLAT 5x6 | PowerFLAT 5x6 | PowerFLAT 5x6 | PowerFLAT 5x6 | PowerFLAT 5x6 |
| Brand | STMicroelectronics | STMicroelectronics | Infineon | Infineon | onsemi |
| Drain-Source Voltage (VDS) | 40 V | 40 V | 40 V | 40 V | 40 V |
| Continuous Drain Current (ID) | 140 A | 140 A | 140 A | 140 A | 100 A |
| On-State Resistance (RDS(on)) | 3.2 mOhm | 3.2 mOhm | 3.5 mOhm | 3.9 mOhm | 4.5 mOhm |
| Gate Charge (Qg) | 60 nC | 60 nC | 65 nC | 70 nC | 50 nC |
| AEC-Q101 Qualified | Yes | No | Yes | Yes | No |
| Power Dissipation (PD) | 150 W | 150 W | 150 W | 140 W | 120 W |
Bảo phân biệt quan trọng
- Ultra-low RDS(on) of 3.2 mOhm (vsIRF1404Z)
- AEC-Q101 automotive qualification (vsSTL140N4F7)
- Higher current rating than FDMS8880 (vsFDMS8880)
Ghi chú thiết kế
The STL140N4F7AG has a maximum power dissipation of 150W. At high currents, ensure adequate heat sinking. The PowerFLAT 5x6 package has a junction-to-case thermal resistance of 1.1 C/W. Use a large copper area on the PCB and thermal vias to dissipate heat effectively. For continuous operation at 140A, the power loss is I^2*R = 140^2 * 0.0032 = 62.7W, which would require a heatsink or forced air cooling to keep junction temperature below 175°C.
Place the gate drive circuit close to the MOSFET to minimize gate loop inductance. Use a gate resistor (e.g., 10 ohm) to control switching speed and reduce EMI. Ensure the source and drain connections have low-inductance paths, using multiple vias for the exposed pad. For high-current paths, use wide copper traces or copper pours to minimize resistance and inductance.
Do not exceed the maximum gate-source voltage of ±20V. Use a gate clamp or zener diode if necessary. Ensure the gate drive voltage is sufficient to fully enhance the MOSFET (typically 10V for lowest RDS(on)). Avoid operating in the linear region for extended periods, as this can cause excessive power dissipation. Also, consider the body diode's reverse recovery in bridge applications; the STL140N4F7AG has a fast body diode, but external snubbers may be needed for high dV/dt.
Thông tin tuân thủ
AEC-Q101 qualified, RoHS compliant, halogen-free. Compliance data based on STMicroelectronics product page.