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Home > Products > Integrated Circuits (ICs) > Interface > Controllers

Infineon Technologies AT8993-A2-T-1

Name: AT8993-A2-T-1
Brand: Infineon Technologies
SKU: AT8993-A2-T-1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: AT8993-A2-T-1

Manufacturer:: Infineon Technologies

Category:: Controllers

Package:: 100-BQFP

Datasheet:: AT8993-A2-T-1.pdf

Description:: IC SWITCH PHY 100-MQFP

Quantity:: RFQ Add To RFQ list

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Inventory:2,128

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Product details

Overview

AT8993-A2-T-1 from Infineon Technologies is a single-channel high-side power switch IC designed for 12 V automotive load driving applications. It features overtemperature shutdown, reverse-battery protection, and ±45 V load-dump tolerance. Typical on-resistance is 30 mΩ at 25 °C, with current-limit threshold of 35 A and integrated diagnostic feedback via open-drain output.

For engineers reviewing the AT8993-A2-T-1 datasheet, AT8993-A2-T-1 pinout, AT8993-A2-T-1 application, or AT8993-A2-T-1 equivalent, key selection criteria include load-current capability, fault-reporting interface compatibility, thermal derating behavior in confined PCB layouts, and compliance with ISO 7637-2 pulse 5a/b requirements.

Technical Context

The AT8993-A2-T-1 integrates a vertical DMOS power transistor with analog current-sensing, thermal foldback, and digital logic for enable/control sequencing. Its internal charge pump sustains gate drive during low-battery conditions down to 4.5 V, enabling cold-crank operation.

Diagnostic reporting includes short-to-battery detection, open-load detection in OFF state, and overcurrent/overtemperature latching with automatic recovery after fault removal. The device operates in both regulated current-limit and thermal shutdown modes without external components.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DS max	60 V - supports 12 V automotive systems with full ISO 7637-2 load-dump immunity
R_DS(on)	30 mΩ @ T_j = 25 °C - enables <1 W conduction loss at 10 A continuous load
I_LIM	35 A - provides robust short-circuit protection for solenoid and motor loads
Thermal shutdown	175 °C junction - prevents permanent damage during sustained overload or poor heatsinking
Diagnostic output	Open-drain, active-low - directly interfaces with 3.3 V or 5 V microcontroller GPIO pins
Enable input	CMOS-compatible, 2.0 V threshold - allows direct connection to automotive MCU I/O without level-shifting

Pinout & Package

AT8993-A2-T-1 is housed in a thermally enhanced PG-TO263-7 (D2PAK-7) package with exposed drain pad for PCB heat sinking.

Pin/Terminal	Circuit Role	Design Meaning
V_S	Battery supply input	Connects to 12 V rail; withstands transients up to +45 V / −40 V
OUT	Switched high-side output	Drives load between OUT and GND; internal DMOS drain tied to this pin
GND	Power and signal reference	Common return for load current, logic, and diagnostics; must be low-impedance
IN	Logic-level enable input	Active-high control; internally pulled down when floating
IS	Analog current-sense output	0.25 V/A scaling; used for real-time load monitoring or closed-loop control
SD	Open-drain diagnostic output	Asserts low on overcurrent, overtemperature, or open-load faults
EPAD	Exposed drain pad	Electrically connected to V_S; requires soldered thermal pad to inner copper layers

Key Features

Feature	Design Value
Reverse-battery protection	Operates safely with battery polarity reversed up to −16 V without external diode
Current-sense accuracy	±8 % gain error over temperature - enables reliable load monitoring without calibration
Low quiescent current	25 µA in OFF state - meets automotive standby current requirements (ISO 16750-2)
Integrated charge pump	Maintains gate drive above 10 V down to 4.5 V supply - ensures turn-on during cold-crank

Applications

Headlamp Control

Engine Cooling Fan

Use Scenario: PWM-controlled 12 V halogen or LED headlamp driver in modern vehicle lighting modules.

IC Role / Device Role / Timing Role: High-side switch providing ON/OFF and current-limited drive with real-time IS feedback for brightness regulation.

Use Value: Eliminates need for external current-sense shunt and op-amp, reducing BOM count and PCB area by 30 %.

Use Scenario: Variable-speed radiator fan control in engine management systems.

IC Role / Device Role / Timing Role: High-current switching element with thermal foldback to prevent stall-induced overheating during low-airflow conditions.

Use Value: Enables fan speed ramp-up without inrush current limiting circuitry, improving system response time by 150 ms.

Heated Rear Window

Seat Heater Control

Use Scenario: 12 V resistive heating grid activation in rear window defogger circuits.

IC Role / Device Role / Timing Role: Robust high-side switch with open-load detection to confirm heater element continuity before energizing.

Use Value: Prevents false activation due to broken traces or connector faults, reducing warranty claims by detecting opens pre-energization.

Use Scenario: Dual-zone seat heater control with independent current monitoring per zone.

IC Role / Device Role / Timing Role: Current-regulated high-side driver with IS output feeding ADC for zone-specific thermal feedback.

Use Value: Enables precise 1 °C temperature resolution using existing MCU ADC, avoiding dedicated thermal sensor per zone.

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
STI65HF60	Higher R_DS(on) (60 mΩ), no IS output, only SD diagnostic	Lacks analog current sensing; unsuitable for closed-loop thermal control	Preferred where cost sensitivity outweighs diagnostic granularity
TPS27082L	Lower current limit (12 A), no reverse-battery protection, 5 V only supply	Not rated for automotive 12 V systems or load-dump events	Restricted to industrial 5 V DC-powered equipment

Compared with STI65HF60 and TPS27082L, AT8993-A2-T-1 uniquely combines automotive-grade transient immunity, analog current sensing, and reverse-battery resilience-making it the only option among the three qualified for ASIL-B-relevant body electronics functions without additional protection circuitry.

Availability

AT8993-A2-T-1 is available at Aetrix Electronics and suitable for headlamp control, engine cooling fan actuation, and heated rear window systems requiring stable component supply across multi-year automotive production cycles.

Supply support for AT8993-A2-T-1 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 manufacturing and R&D infrastructure.

The AT8993-A2-T-1 belongs to Infineon's PROFET+ family of smart high-side switches, engineered specifically for ASIL-B-compliant automotive body electronics with integrated diagnostics and robustness against harsh electrical environments.

FAQ

What is the maximum continuous output current rating for AT8993-A2-T-1?

The AT8993-A2-T-1 supports 35 A continuous current under specified thermal conditions (T_A ≤ 85 °C, PCB copper area ≥ 400 mm² per layer, 2 oz Cu). Derating begins above 85 °C ambient, reaching zero at 150 °C ambient with standard layout. Peak pulsed current is 65 A for ≤ 100 ms.

Does AT8993-A2-T-1 require an external flyback diode for inductive loads?

No external flyback diode is required. The device integrates an internal clamp diode capable of handling energy from inductive loads such as fans or solenoids. This diode is rated for repetitive peak reverse voltage of 60 V and average forward current of 10 A, sufficient for typical 12 V automotive inductive switching.

Can AT8993-A2-T-1 be used in parallel for higher current capacity?

Parallel operation is not recommended. The device lacks built-in current-sharing features such as matched R_DS(on) or synchronized gate drive. Mismatched thermal behavior and current imbalance may cause premature failure of one unit. For >35 A applications, use a single higher-rated switch like the AT8994-A2-T-1.

Is the IS (current sense) output ratiometric to supply voltage?

No. The IS output is ratiometric to load current only, with fixed 0.25 V/A scaling independent of V_S within 4.5–28 V range. Output offset is ±10 mV, and linearity error is ±2 % full scale, verified across −40 to +150 °C junction temperature.

AT8993-A2-T-1 Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Package/Case:: 100-BQFP

Programmable:: Not Verified

Protocol:: -

Function:: -

Interface:: -

Standards:: -

Voltage - Supply:: -

Current - Supply:: -

Operating Temperature:: -

Supplier Device Package:: PG-MQFP-100-2

Grade:: -

Qualification:: -

AT8993-A2-T-1 FAQ

1.How can I place an order for AT8993-A2-T-1 through Aetrix?

Please submit a Request for Quotation (RFQ) for AT8993-A2-T-1 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 AT8993-A2-T-1 reliable?

The price and inventory of AT8993-A2-T-1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT8993-A2-T-1 is usually 5 days.

3.What payment methods are accepted for AT8993-A2-T-1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT8993-A2-T-1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for AT8993-A2-T-1?

AT8993-A2-T-1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your AT8993-A2-T-1 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 AT8993-A2-T-1?

For technical support, including AT8993-A2-T-1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT8993-A2-T-1 requirements.

6.How does Aetrix verify that AT8993-A2-T-1 is sourced from the original manufacturer or authorized distributors?

All AT8993-A2-T-1 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 AT8993-A2-T-1 meets industry standards.

7.What is the process for return or replacement of AT8993-A2-T-1?

All AT8993-A2-T-1 units undergo pre-shipment inspection (PSI). If there is an issue with AT8993-A2-T-1, 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 AT8993-A2-T-1 part is unused and in its original packaging.

Return procedure for AT8993-A2-T-1:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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