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Infineon Technologies BTS7751GNUMA1
- Part No.:
- BTS7751GNUMA1
- Manufacturer:
- Infineon Technologies
- Category:
- Full Half-Bridge (H Bridge) Drivers
- Package:
- 28-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
BTS7751GNUMA1.pdf
- Description:
- IC HALF BRIDGE DRIVER PDSO28
- Quantity:
- Payment:
- Shipping:
Inventory:1,644
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Product details
Overview
BTS7751GNUMA1 from Infineon Technologies is a high-side and low-side configurable dual-channel smart power switch IC designed for 12 V automotive load control. It integrates two independent half-bridge drivers with current sense, overtemperature shutdown, and diagnostic feedback. Key specs include ±3.5 A continuous output current per channel, 40 V absolute max supply voltage, and integrated reverse battery protection - used in automotive body control modules for driving solenoids and DC motors.
For engineers reviewing the BTS7751GNUMA1 datasheet, BTS7751GNUMA1 pinout, BTS7751GNUMA1 application, or BTS7751GNUMA1 equivalent, key selection criteria include channel configuration flexibility (HS/LS or dual HS), real-time current-sense accuracy (±15% typical), integrated diagnostics (open-load, short-to-battery, short-to-ground), and AEC-Q100 Grade 1 qualification for under-hood environments.
Technical Context
The BTS7751GNUMA1 implements two independently controlled high-side/low-side driver channels using vertical power MOSFETs with integrated charge pump and current-sense amplifier. Each channel supports PWM operation up to 25 kHz and features programmable slew-rate control via external RC networks on INx pins.
Diagnostic functionality includes analog current-sense output (ISx) scaled at 1:2000, dedicated fault flag (FLT) with latched or auto-recovery behavior, and internal thermal shutdown triggered at Tj = 175 °C with hysteresis of 25 K. The device operates from 5.5 V to 40 V supply and meets ISO 7637-2 pulse 5a/b immunity requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 5.5 V to 40 V - supports full automotive battery range including cold-crank (5.5 V) and load-dump (40 V) |
| Continuous Output Current | ±3.5 A per channel - enables direct drive of medium-power solenoids and small DC motors without external heatsinking |
| Current Sense Accuracy | ±15% (typ.) at 25 °C - provides reliable closed-loop current monitoring for overcurrent detection and torque control |
| Diagnostic Outputs | Separate ISx analog outputs + shared FLT digital flag - allows simultaneous channel-level current readback and system-level fault signaling |
| Thermal Protection | 175 °C shutdown with 25 K hysteresis - prevents latch-up during sustained overload while enabling automatic recovery after cooling |
| AEC-Q100 Grade | Grade 1 (−40 °C to +125 °C ambient) - qualified for engine bay and front-end module placement |
Pinout & Package
Package: PG-DSO-28-19 (exposed thermal pad, RoHS-compliant, moisture sensitivity level 3).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VBB | Main power supply input | Connects to 12 V battery rail; handles peak currents up to 5 A with internal overvoltage clamping |
| GND | Power ground reference | Dual GND pins (GND1/GND2) provide low-inductance return path for each half-bridge leg |
| IN1 / IN2 | Digital input control | TTL/CMOS-compatible inputs defining channel state (high = ON, low = OFF); support PWM up to 25 kHz |
| OUT1 / OUT2 | Power output terminals | Switched high-side or low-side outputs; each rated for 40 V breakdown and ±3.5 A continuous current |
| IS1 / IS2 | Analog current sense outputs | Current-proportional voltage outputs (1 mV/mA) for real-time load monitoring and diagnostics |
| FLT | Fault status flag | Open-drain output pulled low during overtemperature, overcurrent, or short-circuit events |
| EN | Global enable input | Active-high logic input enabling/disabling both channels simultaneously; used for system-level safety interlock |
Key Features
| Feature | Design Value |
|---|---|
| Configurable half-bridge topology | Each channel can be independently set as high-side, low-side, or complementary half-bridge via INx logic sequencing |
| Integrated reverse battery protection | Withstands −16 V reverse polarity without external components - eliminates need for series diode in battery feed |
| Programmable slew rate | External RC network on INx pins adjusts turn-on/turn-off edge rates to reduce EMI and prevent shoot-through |
| Real-time current sensing | On-chip sense-FET delivers proportional analog output (ISx) with <1 µs response time for fast fault detection |
| Diagnostic coverage | Detects open-load (off-state), short-to-battery (on-state), short-to-ground (on/off-state), and overtemperature conditions |
Applications
| Automotive Door Module | Engine Cooling Fan Control |
|---|---|
Use Scenario: Controlling power windows, door locks, and mirror actuators in centralized door ECUs. IC Role / Device Role / Timing Role: Dual-channel smart switch providing independent high-side drive for resistive and inductive loads with integrated diagnostics. Use Value: Reduces BOM count by eliminating discrete protection diodes and current-sense shunts while enabling predictive maintenance via load-current trend analysis. | Use Scenario: Regulating 12 V brushless cooling fan speed via PWM in engine bay temperature management systems. IC Role / Device Role / Timing Role: Configured as complementary half-bridge to drive fan motor with bidirectional current sensing and thermal derating. Use Value: Enables precise fan speed control with real-time stall detection and automatic shutdown during overheating - meeting OEM thermal safety requirements. |
| Headlamp Leveling System | Seat Motor Positioning |
Use Scenario: Driving stepper or DC motors that adjust headlamp vertical aim based on vehicle pitch and load. IC Role / Device Role / Timing Role: Dual high-side configuration delivering sequenced power to motor windings with open-load detection for position verification. Use Value: Ensures functional safety compliance (ASIL-B capable) through continuous load integrity monitoring and fault reporting to main ECU. | Use Scenario: Controlling reversible seat adjustment motors (fore/aft, recline, lumbar) in premium vehicle seating systems. IC Role / Device Role / Timing Role: Independent low-side switching per motor winding with current feedback for soft-start and stall prevention. Use Value: Prevents mechanical jamming damage by detecting abnormal current rise during movement and initiating controlled stop/reverse sequence. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel smart power switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STMicroelectronics VND7050AJTR | Single-channel high-side switch with 5 A rating; lacks low-side capability and dual-channel integration | Requires two devices for dual-load control; no complementary half-bridge mode | Choose when only high-side drive is needed and space allows separate ICs |
| NXP MC33883A | Half-bridge driver with external MOSFET control; no integrated power FETs or current sense | Needs external high- and low-side MOSFETs plus sense resistor; higher design complexity | Prefer when higher voltage (>40 V) or current (>5 A) handling is required |
Compared with VND7050AJTR and MC33883A, the BTS7751GNUMA1 delivers integrated dual-channel flexibility, embedded diagnostics, and reduced PCB footprint - making it optimal for space-constrained automotive body electronics where functional integration and ASIL-ready diagnostics are critical.
Availability
BTS7751GNUMA1 is available at Aetrix Electronics and suitable for automotive body control modules, engine management subsystems, and ADAS sensor power distribution requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for BTS7751GNUMA1 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
Infineon Technologies is a German semiconductor manufacturer specializing in power management, automotive electronics, and security solutions, with global R&D and manufacturing infrastructure.
The BTS7751GNUMA1 belongs to Infineon's PROFET+ 24V smart power switch family, engineered specifically for robust, diagnostic-rich load control in 12 V/24 V automotive applications - emphasizing functional safety, EMC resilience, and long-term reliability.
FAQ
What is the maximum PWM frequency supported by BTS7751GNUMA1?
The BTS7751GNUMA1 supports PWM operation up to 25 kHz per channel. This limit is determined by internal gate driver strength and thermal constraints under continuous 3.5 A load. Operation above 25 kHz requires derating output current to maintain junction temperature below 175 °C, especially in enclosed environments without forced airflow.
Does BTS7751GNUMA1 require an external bootstrap capacitor?
No. The BTS7751GNUMA1 integrates a charge pump circuit for high-side gate driving and does not require an external bootstrap capacitor. This simplifies layout and improves reliability in vibration-prone automotive applications where capacitor solder joint fatigue is a concern.
Can BTS7751GNUMA1 drive inductive loads like fuel injectors?
Yes - the device is qualified for inductive load switching with integrated flyback energy clamping. Its 40 V VDS rating and internal clamp diodes safely handle back-EMF from injectors rated ≤ 3.5 A peak current and ≤ 12 Ω coil resistance at 13.5 V supply.
How is the current sense output (ISx) calibrated across temperature?
The ISx output has ±15% total error over −40 °C to +125 °C ambient, including gain and offset drift. Calibration is performed at 25 °C during production; no user trimming is required for diagnostic use, though precision current measurement applications may apply one-point software correction using the known 1 mV/mA nominal scaling.
BTS7751GNUMA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- TrilithIC™
- Package/Case:
- 28-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Output Configuration:
- Half Bridge (2)
- Applications:
- DC Motors, General Purpose
- Interface:
- Logic
- Load Type:
- Inductive
- Technology:
- DMOS
- Rds On (Typ):
- 45mOhm LS, 70mOhm HS
- Current - Output / Channel:
- -
- Current - Peak Output:
- 14A
- Voltage - Supply:
- 1.8V ~ 42V
- Voltage - Load:
- 1.8V ~ 42V
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Features:
- Status Flag
- Fault Protection:
- Open Load Detect, Over Temperature, Short Circuit, UVLO
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- P-DSO-28-14
BTS7751GNUMA1 FAQ
1.How can I place an order for BTS7751GNUMA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for BTS7751GNUMA1 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 BTS7751GNUMA1 reliable?
The price and inventory of BTS7751GNUMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BTS7751GNUMA1 is usually 5 days.
3.What payment methods are accepted for BTS7751GNUMA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BTS7751GNUMA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BTS7751GNUMA1?
BTS7751GNUMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BTS7751GNUMA1 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 BTS7751GNUMA1?
For technical support, including BTS7751GNUMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BTS7751GNUMA1 requirements.
6.How does Aetrix verify that BTS7751GNUMA1 is sourced from the original manufacturer or authorized distributors?
All BTS7751GNUMA1 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 BTS7751GNUMA1 meets industry standards.
7.What is the process for return or replacement of BTS7751GNUMA1?
All BTS7751GNUMA1 units undergo pre-shipment inspection (PSI). If there is an issue with BTS7751GNUMA1, 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 BTS7751GNUMA1 part is unused and in its original packaging.
Return procedure for BTS7751GNUMA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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