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Infineon Technologies TLE7181EMXUMA1
- Part No.:
- TLE7181EMXUMA1
- Manufacturer:
- Infineon Technologies
- Category:
- Gate Drivers
- Package:
- 24-LSSOP (0.154", 3.90mm Width) Exposed Pad
- Datasheet:
-
TLE7181EMXUMA1.pdf
- Description:
- IC GATE DRVR HALF-BRIDGE SSOP-24
- Quantity:
- Payment:
- Shipping:
Inventory:14,659
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Product details
Overview
TLE7181EMXUMA1 from Infineon Technologies is an automotive-qualified H-bridge and dual half-bridge driver IC designed to control four N-channel power MOSFETs in motor drive applications. It supports 7–34 V supply operation, delivers ≤13.5 Ω high-side source resistance and ≤9 Ω low-side sink resistance, enables 0–100% duty cycle on low-side outputs and 0–95% at 20 kHz on high-side outputs, and integrates current-sense opamp, adjustable dead time, and AEC-Q100-qualified protection features for electric power steering, radiator fans, and coolant pumps.
For engineers reviewing the TLE7181EMXUMA1 datasheet, TLE7181EMXUMA1 pinout, TLE7181EMXUMA1 application, or TLE7181EMXUMA1 equivalent, key selection criteria include bootstrap-capable high-side gate drive capability, integrated short-circuit detection via SCDL pin with open-pin detection, analog-adjustable overcurrent thresholds, ERR pin diagnostics, and compliance with automotive thermal (-40°C to +150°C) and voltage (VS = 7–34 V) operating ranges.
Technical Context
The TLE7181EMXUMA1 implements two independent floating high-side/low-side driver stages with dedicated bootstrap circuits (BH1/BH2, SH1/SH2) enabling continuous DC conduction on both high- and low-side MOSFETs. Each stage includes level-shifted gate drivers, passive Gxx clamping, and shoot-through protection enforced by programmable dead time (via DT pin resistor).
It integrates a precision shunt signal conditioning path (ISP/ISN/ISO) with fixed overcurrent warning threshold and analog-configurable short-circuit detection (SCDL pin), plus comprehensive fault monitoring: overtemperature, VS/VREG undervoltage shutdown, VS/V DH overvoltage warning, and reverse polarity protection via RPP output driving an external N-MOSFET.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 7.0 V to 34 V - Supports full automotive battery range including cold-crank (7 V) and load-dump (34 V) conditions. |
| Junction Temperature Range | -40°C to +150°C - Enables placement in engine bay or under-hood motor control modules. |
| High-Side Output Resistance | ≤13.5 Ω - Limits gate charge time for fast turn-on of high-side N-MOSFETs in H-bridge configurations. |
| Low-Side Output Resistance | ≤9 Ω - Ensures rapid discharge of low-side MOSFET gates for precise PWM timing control. |
| Duty Cycle Capability | 0–100% on low-side; 0–95% at 20 kHz on high-side - Enables full-range speed control of brushed DC motors. |
| Quiescent Current | 8 µA (typ. at 25°C) - Enables ultra-low-power sleep mode for always-on automotive subsystems. |
| Diagnostic Output | Push-pull ERR pin - Delivers real-time fault status (overcurrent, overtemperature, UV/OV) without external pull-up. |
Pinout & Package
Package: PG-SSOP-24 (24-pin shrink small-outline package), thermally enhanced with exposed tab connected to GND.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| BH1, BH2 | Bootstrap capacitor positive terminals | Provide floating supply for high-side gate drivers; require external 100 nF ceramic capacitors. |
| GH1, GH2 | High-side gate drive outputs | Level-shifted, current-limited outputs driving gates of external N-MOSFETs in high-side position. |
| GL1, GL2 | Low-side gate drive outputs | Ground-referenced outputs with ≤9 Ω sink resistance for fast low-side MOSFET turn-off. |
| SH1, SH2 | High-side source connections | Return paths for high-side MOSFET sources; tied to motor phase nodes in half-bridge topology. |
| SL | Common low-side source node | Single connection point for all low-side MOSFET sources; referenced for current sense amplifier inputs. |
| ISP / ISN | Current sense amplifier inputs | Differential inputs for shunt-based motor current measurement; enable overcurrent warning and SCDL-based protection. |
| SCDL | Analog short-circuit detection level | Voltage-programmable threshold input; open-pin detection triggers fault if unconnected or pulled beyond 6 V. |
| ERR | Diagnostic status output | Active-low push-pull output indicating combined fault condition (overtemp, OV, UV, OC, SC). |
| ENA | Enable/reset control | Active-high input that resets ERR latch, disables all outputs, and activates low-IQ sleep mode when LOW. |
| PWM / DIR / DT / DRVDIS | Functional interface pins | PWM sets duty cycle; DIR selects direction; DT adjusts dead time via external resistor; DRVDIS forces all outputs OFF. |
Key Features
| Feature | Design Value |
|---|---|
| Adjustable dead time | Configured via external resistor on DT pin - prevents shoot-through during high/low-side switching transitions. |
| Integrated current sense OPAMP | Fixed-gain differential amplifier (ISP/ISN → ISO) - enables accurate motor current monitoring without external opamp. |
| Reverse polarity protection drive | RPP output drives external N-MOSFET - blocks reverse battery connection at system level with minimal component count. |
| 1-bit diagnostic ERR output | Push-pull fault indicator with latched status - simplifies microcontroller interrupt handling and eliminates need for polling. |
| Open-pin detection on SCDL | Hardware-level validation of short-circuit threshold setting - prevents silent failure due to missing or misconfigured SCDL resistor. |
Applications
| Electric Power Steering (EPS) | Radiator Cooling Fan |
|---|---|
|
Use Scenario: Bidirectional torque assist for rack-and-pinion steering systems using brushed DC or BLDC motors. IC Role / Device Role / Timing Role: Dual half-bridge driver controlling motor phase currents with synchronized PWM/DIR interface and real-time current feedback. Use Value: Enables precise torque modulation and fail-safe shutdown via ERR pin during overtemperature or overcurrent events. |
Use Scenario: Variable-speed cooling fan in engine compartment with thermal management requirements. IC Role / Device Role / Timing Role: H-bridge driver delivering 0–100% duty cycle control to brushed DC fan motor with adaptive speed ramping. Use Value: Maintains stable operation across 7–34 V supply range and survives 150°C junction temperature during peak load. |
| Electric Coolant Pump | Front Axle Actuator |
|
Use Scenario: Closed-loop flow control in engine thermal management systems using brushless or brushed pump motors. IC Role / Device Role / Timing Role: Dual half-bridge driver with integrated current sensing for motor stall detection and closed-loop current regulation. Use Value: Analog SCDL pin allows tuning of short-circuit trip level to match pump motor inrush characteristics. |
Use Scenario: Position-controlled locking/unlocking of front axle differential in 4WD systems. IC Role / Device Role / Timing Role: Directional H-bridge driver with ENA-controlled sleep mode for low-quiescent-current standby operation. Use Value: 8 µA quiescent current ensures <10 µA system standby draw, meeting OEM battery drain specifications. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar H-bridge and dual half-bridge driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BD37023FV-M | Single half-bridge only; no integrated current sense amplifier; no SCDL pin; 5 V logic interface only. | Limited to low-voltage, single-motor applications without diagnostic depth or automotive thermal rating. | Select only for non-automotive 5 V systems where cost and channel count outweigh diagnostic and ruggedness needs. |
| DRV8876N | Integrated FETs (not gate driver); 45 V max VS; no bootstrap support; no RPP output; SPI interface instead of PWM/DIR. | Suitable for compact board space but lacks reverse polarity protection and fails AEC-Q100 qualification. | Choose when integrated power stage and digital control are prioritized over automotive qualification and external MOSFET flexibility. |
Compared with BD37023FV-M and DRV8876N, the TLE7181EMXUMA1 uniquely combines AEC-Q100 qualification, dual independent half-bridges with bootstrap capability, analog-configurable short-circuit detection, and reverse polarity protection drive - making it the only option qualified for safety-critical EPS and under-hood pump applications requiring long-term reliability and fault transparency.
Availability
TLE7181EMXUMA1 is available at Aetrix Electronics and suitable for electric power steering, radiator cooling fans, and electric coolant pumps requiring stable component supply across automotive production lifecycles.
Supply support for TLE7181EMXUMA1 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 automotive qualification infrastructure.
The TLE7181EMXUMA1 belongs to Infineon's TLE family of automotive-grade motor driver ICs, engineered specifically for robust, high-reliability 12 V motor control in safety-critical chassis and thermal management systems.
FAQ
What is the function of the RPP pin?
The RPP pin outputs a charge-pump-derived voltage to drive an external N-channel MOSFET for reverse polarity protection of the motor bridge. When enabled, it blocks reverse battery connection at the system input, preventing damage to downstream components. Its output is active only when ENA is HIGH and no faults are present.
How does the SCDL pin adjust short-circuit protection?
The SCDL pin accepts an external voltage (0–6 V) to set the analog threshold for short-circuit detection based on shunt voltage. A higher SCDL voltage raises the trip point, allowing higher motor inrush currents before triggering protection. Open-pin detection asserts a fault if SCDL is left floating or exceeds 6 V.
Can the TLE7181EMXUMA1 drive BLDC motors?
Yes - its dual half-bridge architecture supports six-step commutation for 3-phase BLDC motors when paired with three TLE7181EMXUMA1 devices or used with external logic for phase sequencing. Each device controls one high-side/low-side pair, and the integrated current sense path enables per-phase overcurrent monitoring.
What happens when the ERR pin goes low?
A low ERR signal indicates at least one active fault condition: overtemperature (>150°C), VS undervoltage (<~5.5 V), VS overvoltage (>~36 V), overcurrent (via ISO amplifier), or short circuit (via SCDL threshold). The pin remains latched low until ENA is toggled LOW→HIGH to reset internal fault registers.
TLE7181EMXUMA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- 24-LSSOP (0.154", 3.90mm Width) Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Driven Configuration:
- Half-Bridge
- Channel Type:
- Synchronous
- Number of Drivers:
- 4
- Gate Type:
- N-Channel MOSFET
- Voltage - Supply:
- 7V ~ 34V
- Logic Voltage - VIL, VIH:
- 1V, 2V
- Current - Peak Output (Source, Sink):
- -
- Input Type:
- Non-Inverting
- High Side Voltage - Max (Bootstrap):
- 55 V
- Rise / Fall Time (Typ):
- 250ns, 200ns
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PG-SSOP-24-4
TLE7181EMXUMA1 FAQ
1.How can I place an order for TLE7181EMXUMA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLE7181EMXUMA1 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 TLE7181EMXUMA1 reliable?
The price and inventory of TLE7181EMXUMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE7181EMXUMA1 is usually 5 days.
3.What payment methods are accepted for TLE7181EMXUMA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE7181EMXUMA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLE7181EMXUMA1?
TLE7181EMXUMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLE7181EMXUMA1 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 TLE7181EMXUMA1?
For technical support, including TLE7181EMXUMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE7181EMXUMA1 requirements.
6.How does Aetrix verify that TLE7181EMXUMA1 is sourced from the original manufacturer or authorized distributors?
All TLE7181EMXUMA1 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 TLE7181EMXUMA1 meets industry standards.
7.What is the process for return or replacement of TLE7181EMXUMA1?
All TLE7181EMXUMA1 units undergo pre-shipment inspection (PSI). If there is an issue with TLE7181EMXUMA1, 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 TLE7181EMXUMA1 part is unused and in its original packaging.
Return procedure for TLE7181EMXUMA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLE7181EMXUMA1 Tags
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ZXGD3009E6TA
Diodes Incorporated
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1EDN7512BXTSA1
Infineon Technologies
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Texas Instruments
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Microchip Technology
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Microchip Technology
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Littelfuse Inc.
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Infineon Technologies
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Infineon Technologies
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IX4310TTR
Littelfuse Inc.
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Infineon Technologies
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