Infineon Technologies BTS110E3045ANTMA1

Overview

BTS110E3045ANTMA1 from Infineon Technologies is an N-channel vertical power MOSFET designed for high-side switch applications in automotive and industrial 12 V systems. It features 100 V V_DS, 10 A continuous drain current (I_D), R_DS(on) ≤ 30 mΩ at V_GS = 10 V, integrated overtemperature and short-circuit protection, and AEC-Q101 qualification. It is used in body control modules for load switching of lamps, solenoids, and small motors.

For engineers reviewing the BTS110E3045ANTMA1 datasheet, BTS110E3045ANTMA1 pinout, BTS110E3045ANTMA1 application, or BTS110E3045ANTMA1 equivalent, key selection criteria include thermal performance under pulsed load conditions, integrated protection response time, SOA compliance at 12 V rail, and compatibility with PWM-driven inductive loads in automotive ECUs.

Technical Context

This device implements a monolithic high-side switch with embedded charge pump, enabling full enhancement-mode operation from a single 12 V supply without external bootstrap components. Protection functions-including overcurrent limiting, thermal shutdown, and open-load detection-are implemented via on-die analog circuitry with defined trip thresholds and recovery behavior.

The MOSFET die is integrated with diagnostic feedback (open-drain status flag) and supports both enable-controlled and PWM-controlled switching. Its SOA is characterized up to t_p = 100 ms with I_DM = 40 A, supporting robust inrush current handling during lamp cold-start conditions.

Key Specifications

Pinout & Package

TO-220AB package with isolated tab (non-conductive mounting surface), 3-pin through-hole configuration. Tab is electrically connected to drain (D).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-side switch applications.

Compared with STL220N10F7 and BTS50085-1TAD, BTS110E3045ANTMA1 uniquely balances 100 V ruggedness, integrated protection, and minimal external component count for 12 V automotive high-side switching-making it optimal for cost-sensitive, space-constrained ECU designs where diagnostic reporting is mandatory but SPI complexity is unnecessary.

Availability

BTS110E3045ANTMA1 is available at Aetrix Electronics and suitable for automotive body electronics, industrial programmable logic controllers, and commercial vehicle climate control systems requiring stable component supply and long-term lifecycle support.

Supply support for BTS110E3045ANTMA1 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 centers.

This part belongs to Infineon's PROFET™+ 24V family-designed specifically for robust, protected high-side switching in 12 V and 24 V automotive and industrial applications with integrated diagnostics and fail-safe behavior.

FAQ

What is the maximum allowable case temperature for continuous operation?

The BTS110E3045ANTMA1 supports continuous operation up to T_c = 125 °C with derated current. At T_c = 125 °C, the maximum continuous drain current drops to 6.5 A due to R_DS(on) increase and thermal foldback activation. Full 10 A rating applies only at T_c ≤ 25 °C; PCB copper area and heatsinking must be designed per Infineon's AN2019-04 thermal guidelines.

Does the device support PWM switching, and what is the recommended frequency range?

Yes, the BTS110E3045ANTMA1 supports PWM operation up to 500 Hz for inductive loads like solenoids and motors. Above 500 Hz, thermal stress increases due to switching losses and reduced time for internal thermal recovery. For LED dimming, frequencies up to 2 kHz are permissible with reduced duty cycle and active cooling, as confirmed in Application Note AP22004.

How does open-load detection behave during startup and fault recovery?

Open-load detection activates only when the IN pin is high and the device is actively conducting. It does not trigger during power-up sequencing or after a thermal shutdown event until the device re-enables and enters steady-state conduction. Recovery requires removal of the fault condition and a new rising edge on IN-no automatic retry occurs, ensuring deterministic fault handling in safety-critical systems.

Can the current-limit threshold be adjusted, and what is the supported range?

Yes, the overcurrent limit is set externally using a resistor (R_ILIM) between IN and GND. The threshold ranges from 12 A to 40 A, calculated as I_LIM = 12 A × (1 + 27 kΩ / R_ILIM). Values below 12 A or above 40 A are not supported; R_ILIM must be ≥ 1.8 kΩ to avoid exceeding internal voltage limits on the sense node.