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Diodes Incorporated BSP75NTA
- Part No.:
- BSP75NTA
- Manufacturer:
- Diodes Incorporated
- Package:
- TO-261-4, TO-261AA
- Datasheet:
-
BSP75NTA.pdf
- Description:
- IC PWR DRIVER N-CHAN 1:1 SOT223
- Quantity:
- Payment:
- Shipping:
Inventory:22,539
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Product details
Overview
BSP75NTA from Diodes Incorporated is a self-protected, low-side IntelliFET® MOSFET switch rated for 60V drain-source voltage, 500mΩ typical RDS(ON) at VIN = 5V, and 1.1A nominal load current. It integrates monolithic overtemperature, overcurrent, active overvoltage clamp, and ESD protection, and serves as a logic-level µC-compatible power switch in 12V/24V DC industrial and automotive subsystems.
For engineers reviewing the BSP75NTA datasheet, BSP75NTA pinout, BSP75NTA application, or BSP75NTA equivalent, key selection criteria include its thermal shutdown with auto-restart, short-circuit protection behavior at VDS(SC) = 36V (VIN = 5V), unclamped inductive energy rating of 550mJ, and SOT223 package thermal resistance of 83°C/W under standard PCB layout.
Technical Context
The BSP75NTA implements a fully integrated low-side switching architecture with active clamp overvoltage protection that limits VDS to 60–75V during transients, and current-limiting circuitry that deactivates below 5V VDS to avoid interference with normal load conduction. Its thermal shutdown trips at minimum +150°C junction temperature with +1°C hysteresis.
Protection functions operate independently: overcurrent limiting activates when VDS > 5V and ID exceeds 0.7–1.5A (VIN = 5V), while load-dump protection withstands up to 80V transient spikes. Input threshold voltage is 1.0–2.1V, enabling direct interfacing with 3.3V/5V microcontrollers without level-shifting.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDS max | 60V - Maximum continuous drain-source blocking voltage; defines safe operating range for 24V automotive and industrial bus applications. |
| RDS(ON) | 520–675 mΩ @ VIN = 5V, ID = 0.7A - On-resistance directly determines conduction loss and thermal rise under steady-state load. |
| ID(LIM) | 0.7–1.5A @ VIN = 5V, VDS > 5V - Programmable current limit prevents destructive fault currents while allowing inrush for lamps/motors. |
| EAS | 550 mJ @ TJ = +25°C - Unclamped inductive energy handling capacity; enables robust operation with relay coils and solenoids. |
| VLOAD_DUMP | 80V - Withstands ISO 7637-2 Load Dump pulses without external TVS, reducing BOM count in vehicle electronics. |
| tON/tOFF | 3 µs / 13 µs - Fast switching minimizes transition losses and supports PWM dimming or motor commutation up to ~30kHz. |
Pinout & Package
Package: SOT223 (Type DN), surface-mount, lead-free, RoHS-compliant. Tab connected to Source; must be electrically isolated from Drain. Recommended copper allocation: 6 cm² total, 33% to tab (Source), 66% to Drain pin.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (Drain) | Main power output path | Carries full load current; requires significant copper pour for thermal management; electrically isolated from tab. |
| Pin 2 (Source) | Power return and thermal reference | Internally bonded to exposed tab; forms low-inductance ground path and primary heat sink interface. |
| Pin 3 (Gate) | Logic-level control input | Accepts 1.0–10V input; threshold ensures compatibility with 3.3V/5V MCUs; protected by integrated ESD diodes. |
| Tab (Source) | Thermal and electrical connection | Electrically identical to Pin 2; mandatory for thermal performance; must not contact Drain copper or chassis ground. |
Key Features
| Feature | Design Value |
|---|---|
| Short-circuit protection with auto-restart | Trips within microseconds at VDS > 36V (VIN = 5V); recovers automatically after fault clears-no MCU intervention required. |
| Active overvoltage clamp | Clamps VDS to 60–75V during transients; eliminates need for external Zener or TVS in 24V systems. |
| Thermal shutdown with hysteresis | Triggers at ≥+150°C junction temperature; +1°C hysteresis prevents oscillation near trip point during sustained overload. |
| Load-dump protection | Withstands 80V ISO 7637-2 pulses without degradation-enables direct use in automotive body control modules. |
| Logic-level input compatibility | VIN(TH) = 1.0–2.1V; draws only 0.7–7mA at 5–10V input-reduces drive-stage complexity vs. high-voltage gate drivers. |
Applications
| Automotive Body Control | Industrial Motor Actuation |
|---|---|
|
Use Scenario: Driving 12V incandescent lamps and small solenoids in door lock, mirror fold, and interior lighting modules. IC Role / Device Role / Timing Role: Low-side power switch with integrated short-circuit and load-dump protection. Use Value: Eliminates discrete protection components and relay replacements; survives 80V load dump per ISO 7637-2. |
Use Scenario: Controlling 24V DC brush motors in HVAC dampers, valve actuators, and conveyor belt drives. IC Role / Device Role / Timing Role: Self-protected MOSFET switch with current-limiting and thermal auto-restart. Use Value: Handles 550mJ inductive kickback without snubbers; sustains 1.1A continuous current on standard 2oz FR-4 PCB. |
| Smart Home Power Distribution | Medical Equipment Peripherals |
|
Use Scenario: Switching resistive heating elements and LED arrays in programmable thermostats and smart outlets. IC Role / Device Role / Timing Role: Logic-level controlled, thermally robust low-side switch with ESD-hardened input. Use Value: RDS(ON) ≤ 675mΩ ensures <1W conduction loss at 1.1A; RoHS/Green compliance meets consumer electronics requirements. |
Use Scenario: Enabling/disabling auxiliary 12V peripherals (e.g., pumps, sensors) in portable diagnostic devices. IC Role / Device Role / Timing Role: Fault-tolerant power switch with overtemperature and overcurrent protection. Use Value: Auto-restart after thermal shutdown maintains system uptime; 4000V HBM ESD rating protects against handling damage. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-side protected MOSFET switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Infineon BTS3035-2E3 | Higher RDS(ON) (900mΩ), lower VDS (40V), no active clamp; relies on external TVS for overvoltage. | Limited to 12V systems; requires additional protection components for load dump or inductive spikes. | Select when cost sensitivity outweighs integration needs and board space permits external protection. |
| STMicroelectronics VNQ5E100AJTR-E | Higher current rating (2.5A), integrated diagnostics (current sense, fault flag), but larger SO-8 package and higher quiescent current. | Preferred where real-time current monitoring or CAN/LIN communication is required; less suitable for space-constrained SOT223 layouts. | Choose when diagnostic feedback and higher drive capability justify added complexity and footprint. |
Compared with BTS3035-2E3 and VNQ5E100AJTR-E, the BSP75NTA delivers optimal balance of integration (active clamp, auto-restart, 80V load dump), compact SOT223 form factor, and µC-friendly 5V logic interface-ideal for cost-sensitive, space-constrained 12–24V industrial and automotive switches.
Availability
BSP75NTA is available at Aetrix Electronics and suitable for automotive body control modules, industrial motor actuation circuits, smart home power distribution units, and medical equipment peripherals requiring stable component supply across production lifecycles.
Supply support for BSP75NTA 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
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, specializing in high-reliability, application-optimized components for automotive, industrial, and computing markets.
The BSP75N series belongs to Diodes' IntelliFET® family of intelligent power switches, designed specifically for replacing electromechanical relays and discrete protection circuits in 12V/24V DC systems with integrated fault resilience.
FAQ
What is the maximum continuous current the BSP75NTA can deliver on a standard PCB?
The BSP75NTA delivers up to 1.1A continuous current at VIN = 5V when mounted on a 25mm × 25mm × 1.6mm FR-4 board with 2oz copper and optimized 6 cm² copper allocation (33% to source tab, 66% to drain). At +70°C ambient, derating reduces this to 575mA-thermal performance is governed by PCB layout, not internal current limiting.
Does the BSP75NTA require an external flyback diode when driving inductive loads?
No external flyback diode is required. The BSP75NTA incorporates an integrated body diode rated for 2.0A continuous and 3.3A pulsed source current, and its active overvoltage clamp (60–75V) safely dissipates inductive energy up to 550mJ without external components-verified per unclamped inductive switching tests in the datasheet.
Can the BSP75NTA be used in automotive applications requiring AEC-Q100 qualification?
The BSP75NTA itself is not AEC-Q100 qualified; however, the pin- and function-compatible BSP75NQ variant is automotive-grade and qualified to AEC-Q100 Grade 1 (−40°C to +125°C). For production automotive designs, BSP75NQ must be specified-BSP75NTA is intended for industrial and commercial applications.
How does the current-limiting behavior interact with PWM dimming of LED loads?
The current limit activates only when VDS exceeds 5V-during normal PWM operation with low VDS, the device operates in linear mode without restriction. This allows undistorted PWM waveforms up to ~30kHz (tON/tOFF = 3/13 µs), preserving dimming resolution while still protecting against hard shorts or stalled-motor faults.
BSP75NTA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- TO-261-4, TO-261AA
- Series:
- INTELLIFET®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Switch Type:
- General Purpose
- Number of Outputs:
- 1
- Ratio - Input:Output:
- 1:1
- Output Configuration:
- Low Side
- Output Type:
- N-Channel
- Interface:
- On/Off
- Voltage - Load:
- 60V (Max)
- Voltage - Supply (Vcc/Vdd):
- Not Required
- Current - Output (Max):
- 1.3A
- Rds On (Typ):
- 385mOhm
- Input Type:
- Non-Inverting
- Features:
- Auto Restart
- Fault Protection:
- Current Limiting (Fixed), Over Temperature, Over Voltage
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-223-3
BSP75NTA FAQ
1.How can I place an order for BSP75NTA through Aetrix?
Please submit a Request for Quotation (RFQ) for BSP75NTA 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 BSP75NTA reliable?
The price and inventory of BSP75NTA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BSP75NTA is usually 5 days.
3.What payment methods are accepted for BSP75NTA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BSP75NTA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BSP75NTA?
BSP75NTA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BSP75NTA 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 BSP75NTA?
For technical support, including BSP75NTA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BSP75NTA requirements.
6.How does Aetrix verify that BSP75NTA is sourced from the original manufacturer or authorized distributors?
All BSP75NTA 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 BSP75NTA meets industry standards.
7.What is the process for return or replacement of BSP75NTA?
All BSP75NTA units undergo pre-shipment inspection (PSI). If there is an issue with BSP75NTA, 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 BSP75NTA part is unused and in its original packaging.
Return procedure for BSP75NTA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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