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Infineon Technologies BTM7741GXUMA1
- Part No.:
- BTM7741GXUMA1
- Manufacturer:
- Infineon Technologies
- Category:
- Full Half-Bridge (H Bridge) Drivers
- Package:
- 28-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
BTM7741GXUMA1.pdf
- Description:
- IC HALF BRIDGE DRIVER DSO28
- Quantity:
- Payment:
- Shipping:
Inventory:3,011
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Product details
Overview
BTM7741GXUMA1 from Infineon Technologies is an automotive-grade quad-channel smart power switch IC integrating two high-side and two low-side vertical DMOS switches in a single PG-DSO-28-22 package. It delivers 10 A peak current, features 110 mΩ (HS) / 100 mΩ (LS) RDS(on) at 25°C, integrated short-circuit/overtemperature/undervoltage protection, and open-load detection - enabling robust DC motor control in automotive body electronics.
For engineers reviewing the BTM7741GXUMA1 datasheet, BTM7741GXUMA1 pinout, BTM7741GXUMA1 application, or BTM7741GXUMA1 equivalent, this device supports flexible H-bridge and independent switch configurations with diagnostic status flag output, PWM operation up to 1 kHz, and RoHS-compliant AEC-Q100 qualification for under-hood and chassis applications.
Technical Context
The BTM7741GXUMA1 implements SMART SIPMOS® technology: vertically stacked DMOS power stages co-integrated with CMOS control logic on three isolated lead frames. Its dual high-side (SH1/SH2) and dual low-side (SL1/SL2) outputs are independently controllable via TTL/CMOS-compatible Schmitt-trigger inputs (IH1/IH2/IL1/IL2), with internal clamp diodes and gate drivers optimized for inductive load switching.
Protection architecture includes real-time VDS-based short-circuit monitoring per channel, thermal shutdown with hysteresis, undervoltage lockout (VUVON = 5.5 V, VUVOFF = 4.8 V), and OFF-state open-load detection using SH2 voltage sampling - all reported through a shared open-drain status flag (ST) pin.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 4.5 V to 40 V - supports 12 V/24 V automotive battery systems with transient tolerance up to 40 V. |
| Peak Output Current | 10 A typ. @ 25°C - enables direct driving of medium-power DC motors (e.g., seat adjusters, HVAC flaps). |
| RDS(on) High-Side | 110 mΩ typ. @ 25°C, 270 mΩ max. @ 150°C - ensures low conduction loss and thermal stability in continuous duty cycles. |
| RDS(on) Low-Side | 100 mΩ typ. @ 25°C, 230 mΩ max. @ 150°C - balances efficiency and silicon area for compact H-bridge implementation. |
| Quiescent Current | 5 µA typ. @ 25°C - meets automotive standby power requirements for always-on modules. |
| PWM Frequency Support | Up to 1 kHz - compatible with standard motor speed control without audible noise or excessive switching loss. |
| Status Flag Output | Open-drain ST pin - provides consolidated fault reporting (short, overtemp, UVLO, open-load) to microcontroller GPIO. |
Pinout & Package
BTM7741GXUMA1 uses the PG-DSO-28-22 thermally enhanced exposed-pad SOIC package (28-pin, 15.6 mm × 10.5 mm), with three electrically isolated lead frames for HS/LS1/LS2 power domains and dedicated analog/digital signal pins.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 3, 25, 28 (DL1) | Drain of LS1 | Power output node for low-side switch 1; connected directly to LS1 lead frame for low thermal resistance. |
| 2 (IL1) | Analog input for LS1 gate | Direct gate drive control path for LS1 MOSFET; accepts CMOS/TTL logic levels. |
| 5, 10, 19, 24 (DHVS) | High-side drain & supply rail | Common power input for both HS switches and VS supply; tied to HS lead frame. |
| 6 (GND) | Digital ground reference | Signal return for control inputs and status flag; isolated from power ground planes. |
| 7 (IH1), 9 (IH2) | Digital inputs for HS1/HS2 | TTL/CMOS-compatible Schmitt-trigger inputs with hysteresis for noise immunity. |
| 8 (ST) | Open-drain status flag | Active-low fault indicator aggregating short-circuit, overtemperature, UVLO, and open-load events. |
| 12, 14, 15, 18 (DL2) | Drain of LS2 | Power output node for low-side switch 2; connected to LS2 lead frame for thermal separation. |
| 13 (IL2) | Analog input for LS2 gate | Direct gate drive control path for LS2 MOSFET; functionally identical to IL1. |
| 16, 17 (SL2), 26, 27 (SL1) | Sources of LS2/LS1 | Return paths for LS currents; routed to separate lead frames to enable independent current sensing. |
| 20, 21 (SH2), 22, 23 (SH1) | Sources of HS2/HS1 | Switched output nodes for high-side drivers; used for open-load detection and H-bridge topology. |
Key Features
| Feature | Design Value |
|---|---|
| Configurable topology | Supports independent quad-switch, half-bridge, or full H-bridge operation via external wiring - no internal fixed routing. |
| Integrated diagnostics | Single ST pin reports four fault types (short-to-GND/VCC, overtemp, UVLO, open-load) with defined voltage thresholds and hysteresis. |
| Thermal robustness | Three isolated lead frames minimize cross-talk and enable >2 W dissipation at TA = 85°C with standard PCB copper pour. |
| Automotive qualification | AEC-Q100 Grade 1 (−40°C to +125°C ambient), RoHS-compliant, and green product certified - validated for 15-year vehicle lifetime. |
| Inductive load handling | Built-in clamp diodes on HS outputs suppress flyback spikes up to ±40 V, eliminating need for external snubbers in 12 V systems. |
Applications
| Automotive Seat Control | Engine Cooling Fan Drive |
|---|---|
|
Use Scenario: Bidirectional adjustment of power seats using dual DC motors for forward/backward and up/down motion. IC Role / Device Role / Timing Role: Configured as full H-bridge per motor, with IH1/IH2 controlling direction and IL1/IL2 enabling PWM speed regulation. Use Value: Integrated short-circuit protection prevents fuse blowing during mechanical stall; open-load detection identifies broken motor wiring before ECU timeout. |
Use Scenario: Variable-speed 12 V cooling fan controlled by engine ECU based on coolant temperature and vehicle speed. IC Role / Device Role / Timing Role: Used as high-side switch with PWM input on IH1, while ST flag feeds fault status back to ECU for limp-home mode activation. Use Value: 10 A peak rating handles fan startup surge; 5 µA quiescent current avoids battery drain during ignition-off periods. |
| Body Control Module (BCM) Window Lift | HVAC Air Flap Actuator |
|
Use Scenario: One-touch auto-up/down window lift with anti-pinch detection requiring precise current monitoring and fast fault response. IC Role / Device Role / Timing Role: Operated as quad independent switches - two for motor direction, two for brake/hold functions - with ST flag triggering immediate shutdown on overcurrent. Use Value: RDS(on) matching between HS/LS channels ensures balanced H-bridge performance; thermal hysteresis prevents nuisance tripping during sustained operation. |
Use Scenario: Positioning of HVAC blend doors using small 24 V DC actuators in premium vehicle climate systems. IC Role / Device Role / Timing Role: Deployed as dual high-side switches (IH1/IH2) driving actuators, with ST flag signaling open-load if door linkage disconnects. Use Value: 40 V absolute max rating accommodates 24 V system transients; undervoltage lockout prevents erratic actuation during cranking. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad-channel automotive power switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BTN7960B | Single-channel 43 A half-bridge; higher current, no integrated open-load detection or status flag. | Requires external fault monitoring circuitry; suitable only for high-power single-motor applications. | Select when peak current >10 A is required and diagnostic integration is handled externally. |
| TPS4H160-Q1 | Quad-channel high-side driver with 120 mΩ RDS(on); supports 2.5–40 V, but lacks low-side switches and H-bridge capability. | Cannot implement bidirectional motor control without adding external low-side FETs and gate drivers. | Prefer when only high-side switching is needed and board space allows discrete low-side implementation. |
Compared with BTN7960B and TPS4H160-Q1, BTM7741GXUMA1 uniquely integrates matched HS/LS pairs, embedded diagnostics, and topology flexibility in one package - reducing BOM count and PCB area for multi-motor automotive modules.
Availability
BTM7741GXUMA1 is available at Aetrix Electronics and suitable for automotive seat control, engine cooling fan drive, and HVAC air flap actuator applications requiring stable component supply across extended production lifecycles.
Supply support for BTM7741GXUMA1 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 industrial control ICs, with global manufacturing and quality certification to ISO/TS 16949.
The BTM7741GXUMA1 belongs to Infineon's TrilithIC family - engineered specifically for automotive body electronics requiring integrated power switching, real-time diagnostics, and AEC-Q100 reliability in space-constrained modules.
FAQ
What is the maximum junction temperature and thermal resistance specification for BTM7741GXUMA1?
The BTM7741GXUMA1 has a maximum junction temperature of +150°C and a typical thermal resistance RthJA of 45 K/W under standard JEDEC PCB conditions (2-layer, 2 oz Cu, 1 in² copper pour). Its PG-DSO-28-22 package uses three isolated lead frames to reduce RthJL for each power domain, enabling reliable operation at 2.5 W dissipation in ambient temperatures up to +85°C.
How does open-load detection work on the high-side outputs?
Open-load detection operates only when both high-side switches are OFF (IH1 = IH2 = LOW). A pull-up resistor connects SH2 to 5 V via an external transistor; if the load is connected, SH2 is pulled near GND. If disconnected, SH2 rises above VOUT(OL) (~3.5 V), causing the ST pin to go LOW. This requires coordinated timing between microcontroller GPIO and the external transistor to avoid conflict during active switching.
Can BTM7741GXUMA1 be used in 24 V commercial vehicle applications?
Yes - its 40 V absolute maximum supply voltage rating and AEC-Q100 Grade 1 qualification (−40°C to +125°C) make it suitable for 24 V truck and bus systems. The RDS(on) values remain within spec up to 150°C junction temperature, and integrated clamp diodes suppress transients exceeding ISO 7637-2 Pulse 5a. Derating curves in Section 5.2 confirm 7.5 A continuous current capability at TA = 105°C.
Is there a recommended layout practice to minimize EMI in motor drive applications?
Place 100 µF bulk capacitance (low-ESR tantalum or ceramic) between DHVS and GND within 5 mm of the IC, and add 470 nF ceramic decoupling capacitors at each DHVS pin group. Route high-current paths (DL1/DL2/SH1/SH2) with minimum loop area and separate analog (IL1/IL2) and digital (IH1/IH2/ST) traces. Use the exposed thermal pad as primary GND connection and solder it to a solid inner-layer copper plane for EMI suppression and thermal relief.
BTM7741GXUMA1 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):
- 100mOhm LS, 110mOhm HS
- Current - Output / Channel:
- -
- Current - Peak Output:
- 10A
- 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:
- PG-DSO-28
BTM7741GXUMA1 FAQ
1.How can I place an order for BTM7741GXUMA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for BTM7741GXUMA1 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 BTM7741GXUMA1 reliable?
The price and inventory of BTM7741GXUMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BTM7741GXUMA1 is usually 5 days.
3.What payment methods are accepted for BTM7741GXUMA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BTM7741GXUMA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BTM7741GXUMA1?
BTM7741GXUMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BTM7741GXUMA1 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 BTM7741GXUMA1?
For technical support, including BTM7741GXUMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BTM7741GXUMA1 requirements.
6.How does Aetrix verify that BTM7741GXUMA1 is sourced from the original manufacturer or authorized distributors?
All BTM7741GXUMA1 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 BTM7741GXUMA1 meets industry standards.
7.What is the process for return or replacement of BTM7741GXUMA1?
All BTM7741GXUMA1 units undergo pre-shipment inspection (PSI). If there is an issue with BTM7741GXUMA1, 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 BTM7741GXUMA1 part is unused and in its original packaging.
Return procedure for BTM7741GXUMA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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