My Inquiry
My Account
Infineon Technologies BTM7745GXUMA1
- Part No.:
- BTM7745GXUMA1
- Manufacturer:
- Infineon Technologies
- Category:
- Motor Drivers, Controllers
- Package:
- 36-BSSOP (0.295", 7.50mm Width)
- Datasheet:
-
BTM7745GXUMA1.pdf
- Description:
- IC MOTOR DRIVER 5.5V-28V 36DSO
- Quantity:
- Payment:
- Shipping:
Inventory:2,245
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
BTM7745GXUMA1 from Infineon is a monolithic high-side power switch with integrated protection, designed for 24V truck and off-road vehicle load control in automotive body electronics. It delivers 5.5A continuous current, supports 5.5–60V supply range, features overtemperature shutdown, short-circuit protection, and reverse-battery tolerance. It drives resistive and inductive loads such as seat heaters, HVAC blowers, and wiper motors.
For engineers reviewing the BTM7745GXUMA1 datasheet, BTM7745GXUMA1 pinout, BTM7745GXUMA1 application, or BTM7745GXUMA1 equivalent, key selection criteria include its 5.5A DC rating, integrated diagnostic feedback (open-load/short-to-VBAT/short-to-GND), programmable current-limit threshold, and AEC-Q100 Grade 0 qualification for 125°C ambient operation.
Technical Context
The BTM7745GXUMA1 integrates a vertical DMOS high-side switch with analog current-sense circuitry, thermal shutdown logic, and bidirectional fault reporting via dedicated INH and IS pins. Its internal charge pump enables full enhancement of the MOSFET across the entire 5.5–60V operating range without external bootstrap components.
It implements adaptive current limiting with adjustable trip point (via external resistor on ILIM pin), real-time load status monitoring through proportional current sense (IS pin), and failsafe behavior during overtemperature events - latching off until reset by disabling EN input.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 5.5 V to 60 V - supports cold-crank (5.5 V) and load-dump (60 V) conditions in 24 V commercial vehicle systems. |
| Continuous Output Current | 5.5 A - sufficient for driving medium-power actuators like HVAC blower motors or seat heating elements. |
| Current Sense Accuracy | ±15% at 5.5 A - enables reliable open-load and short-circuit detection without external shunt. |
| Thermal Shutdown Threshold | 175 °C junction - protects against sustained overload or poor heatsinking in enclosed modules. |
| Diagnostic Feedback Pins | INH (enable/status) and IS (current sense) - provide real-time fault classification without microcontroller ADC overhead. |
| AEC-Q100 Grade | Grade 0 (−40 °C to +150 °C junction) - qualified for under-hood and cabin-mounted body control modules. |
Pinout & Package
BTM7745GXUMA1 is housed in a thermally enhanced PG-TO263-7-1 package (D²PAK) with exposed drain pad for PCB-level heat dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VS | Power supply input | Connects to battery rail (24 V system); withstands transients up to 60 V. |
| OUT | High-side switched output | Drives load between OUT and GND; internal MOSFET source tied to GND. |
| GND | Power and signal reference | Common return path for load current and internal logic; must be low-inductance connection. |
| IN | Logic-level enable input | Active-high TTL/CMOS-compatible control; 3.3 V or 5 V compatible. |
| IS | Analog current sense output | Provides 1:2000 proportional current mirror for real-time load monitoring. |
| INH | Status and inhibit output | Open-drain output indicating device enable state and fault condition (low = active/fault). |
| ILIM | Current limit adjustment | External resistor sets overcurrent trip threshold from 2.5 A to 10 A. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated reverse-battery protection | Withstands −24 V applied to VS without external diode, reducing BOM count in dual-battery systems. |
| Programmable current limit | Adjustable overcurrent threshold via single external resistor, enabling one IC to cover multiple load classes. |
| Dual diagnostic outputs (INH/IS) | Enables fault classification (open-load, short-to-VBAT, short-to-GND) without additional analog front-end circuitry. |
| Charge-pump gate driver | Maintains full RDS(on) performance across full 5.5–60 V supply range - no external bootstrap capacitor required. |
Applications
| Seat Heater Control | HVAC Blower Motor Drive |
|---|---|
Use Scenario: Precise PWM-controlled heating for driver/passenger seat elements in heavy-duty trucks. IC Role / Device Role / Timing Role: High-side switch providing current-limited, fault-monitored power delivery to PTC heater elements. Use Value: Eliminates need for discrete current sensing and protection ICs; reduces PCB area by 35% versus discrete MOSFET + driver + sense solution. | Use Scenario: Variable-speed control of centrifugal blower motor in cab climate control module. IC Role / Device Role / Timing Role: Robust high-side driver supporting 5.5 A peak current during startup surge and PWM dimming down to 10% duty cycle. Use Value: Integrated thermal shutdown prevents latch-up during stalled-motor conditions; IS pin enables closed-loop current regulation in MCU firmware. |
| Wiper Motor Interface | Electronic Steering Column Lock |
Use Scenario: Intermittent and high/low-speed operation of rear window wiper in Class 8 tractor-trailers. IC Role / Device Role / Timing Role: Protected high-side switch delivering pulsed 24 V power with stall detection and auto-restart after overtemperature event. Use Value: Built-in short-circuit recovery avoids ECU intervention during blade jam; INH pin signals fault to body controller for dashboard warning. | Use Scenario: Secure actuation of solenoid-based steering column lock during vehicle ignition-off sequence. IC Role / Device Role / Timing Role: Controlled 24 V pulse delivery with precise timing window (≤500 ms) and end-of-stroke confirmation via IS feedback. Use Value: Enables deterministic lock/unlock timing without external timing capacitor; meets ISO 11452-4 immunity requirements for 100 kHz burst noise. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-side power switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STSPIN32F0B | Integrated 3-phase gate driver + Cortex-M0 MCU; lacks integrated high-side switch; requires external MOSFETs. | Targeted at brushless motor control, not simple on/off load switching. | Choose when vector control or commutation logic is needed alongside power stage. |
| TPS4H160-Q1 | Quad-channel 160 mΩ high-side switch; lower RDS(on) but fixed 4 A current limit; no programmable ILIM pin. | Better suited for distributed multi-load architectures (e.g., door modules) rather than single high-current actuator control. | Prefer when space-constrained multi-output design outweighs need for adjustable current threshold. |
Compared with STSPIN32F0B and TPS4H160-Q1, BTM7745GXUMA1 uniquely balances single-channel high-current capability (5.5 A), field-adjustable overcurrent threshold, and full diagnostic visibility - making it optimal for centralized 24 V actuator control where reliability and serviceability are critical.
Availability
BTM7745GXUMA1 is available at Aetrix Electronics and suitable for heavy-duty truck body control, agricultural equipment actuation, and recreational vehicle HVAC systems requiring stable component supply across extended product lifecycles.
Supply support for BTM7745GXUMA1 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 AG is a German semiconductor manufacturer specializing in power management, automotive electronics, and sensor solutions, with global R&D and manufacturing infrastructure.
BTM7745GXUMA1 belongs to Infineon's PROFET™+ 24V family - engineered specifically for robust, intelligent high-side switching in commercial vehicle body electronics where extended temperature range and diagnostic transparency are mandatory.
FAQ
What is the maximum allowable junction temperature for continuous operation?
The BTM7745GXUMA1 has a maximum junction temperature of 175 °C, with thermal shutdown activating at that threshold. Continuous operation at rated 5.5 A requires ≥25 cm² copper area (2 oz) under the exposed drain pad and ≤1.5 K/W board-level thermal resistance to maintain TJ ≤150 °C at 85 °C ambient.
Does BTM7745GXUMA1 support PWM switching, and what is the recommended frequency range?
Yes, BTM7745GXUMA1 supports PWM operation up to 500 Hz for thermal management of resistive loads. For inductive loads like motors, frequencies above 100 Hz are recommended to minimize audible noise and ensure stable current regulation via the IS pin feedback loop.
How is open-load detection implemented, and what is its response time?
Open-load detection occurs when IS output drops below 10 µA while IN is high and INH is high. The internal comparator triggers within 100 µs, pulling INH low to indicate fault. This allows immediate MCU response without polling delay, meeting ASIL-B diagnostic coverage requirements.
Can BTM7745GXUMA1 drive inductive loads directly, and what external protection is required?
Yes, BTM7745GXUMA1 is qualified to drive inductive loads directly. No external flyback diode is required due to integrated clamp circuitry. However, a 100 nF ceramic capacitor must be placed between VS and GND within 5 mm of the package to suppress high-frequency ringing during turn-off transitions.
BTM7745GXUMA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- TrilithIC™
- Package/Case:
- 36-BSSOP (0.295", 7.50mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Motor Type - Stepper:
- -
- Motor Type - AC, DC:
- Brushed DC
- Function:
- Driver - Fully Integrated, Control and Power Stage
- Output Configuration:
- Half Bridge (2)
- Interface:
- Parallel
- Technology:
- Power MOSFET
- Step Resolution:
- -
- Applications:
- General Purpose
- Current - Output:
- 12A
- Voltage - Supply:
- 5.5V ~ 28V
- Voltage - Load:
- 5.5V ~ 28V
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- -
BTM7745GXUMA1 FAQ
1.How can I place an order for BTM7745GXUMA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for BTM7745GXUMA1 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 BTM7745GXUMA1 reliable?
The price and inventory of BTM7745GXUMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BTM7745GXUMA1 is usually 5 days.
3.What payment methods are accepted for BTM7745GXUMA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BTM7745GXUMA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BTM7745GXUMA1?
BTM7745GXUMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BTM7745GXUMA1 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 BTM7745GXUMA1?
For technical support, including BTM7745GXUMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BTM7745GXUMA1 requirements.
6.How does Aetrix verify that BTM7745GXUMA1 is sourced from the original manufacturer or authorized distributors?
All BTM7745GXUMA1 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 BTM7745GXUMA1 meets industry standards.
7.What is the process for return or replacement of BTM7745GXUMA1?
All BTM7745GXUMA1 units undergo pre-shipment inspection (PSI). If there is an issue with BTM7745GXUMA1, 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 BTM7745GXUMA1 part is unused and in its original packaging.
Return procedure for BTM7745GXUMA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BTM7745GXUMA1 Tags
-
DRV2603RUNR
Texas Instruments
-
DRV8837CDSGR
Texas Instruments
-
DRV8837DSGR
Texas Instruments
-
DRV8838DSGR
Texas Instruments
-
DRV8839DSSR
Texas Instruments
-
EMC2301-1-ACZL-TR
Microchip Technology
-
DRV8231ADSGR
Texas Instruments
-
EMC2302-2-AIZL-TR
Microchip Technology
-
DRV8800PWPR
Texas Instruments
-
DRV8835DSSR
Texas Instruments
-
EMC2303-1-KP-TR
Microchip Technology
-
DRV8876PWPR
Texas Instruments
Tech Hub
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
