Infineon Technologies BTN70301EPAXUMA1

Overview

BTN70301EPAXUMA1 from Infineon is a protected smart integrated half-bridge IC in PG-TSDSO-14 package, combining high-side and low-side MOSFETs with embedded driver, diagnosis, and protection logic. It delivers 7 A nominal load current, 25.5 mΩ high-side R_DS(ON) at 150°C, and supports motor/solenoid drive up to 3 mH inductance with inverse-current capability (InverseON) and proportional current sense (k_ILIS = 4300).

For engineers reviewing the BTN70301EPAXUMA1 datasheet, BTN70301EPAXUMA1 pinout, BTN70301EPAXUMA1 application, or BTN70301EPAXUMA1 equivalent, key selection criteria include automotive-grade AEC-Q100 qualification, intelligent latch-based overcurrent/overtemperature protection, open-load detection in ON/OFF states, and VS undervoltage shutdown at 3.5 V during cranking.

Technical Context

The device implements a SMART7-integrated half-bridge architecture with independent gate control for high-side (charge-pump driven) and low-side stages, enabling bidirectional switching and InverseON operation under reverse current conditions. Protection logic includes cross-current detection, clamped overvoltage shutdown (35 V), and temperature-dependent overload thresholds (17 A @ T_J < 75°C, 14 A @ T_J = 150°C).

Diagnosis is implemented via analog SENSE output (IS pin) with proportional load current sensing, fault reporting through EN/DEN latching, and open-circuit detection in both active and sleep states. All protections use intelligent latch strategy (INTLAT) requiring explicit enable pulse to reset after fault.

Key Specifications

Pinout & Package

BTN70301EPAXUMA1 is housed in a thermally enhanced PG-TSDSO-14 package (exposed pad) with 14 leads and internal GND connection to the exposed thermal pad. Pin assignment follows Infineon's standardized layout for NovalithIC™ Lite half-bridges.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar smart half-bridge applications.

Compared with BTN7960B and TLE7236R, BTN70301EPAXUMA1 uniquely balances compact size, integrated half-bridge topology, InverseON capability, and high-fidelity current sensing-making it optimal for space- and performance-constrained automotive actuators requiring bidirectional control and functional safety diagnostics.

Availability

BTN70301EPAXUMA1 is available at Aetrix Electronics and suitable for electric power steering assist, HVAC blower control, engine cooling fan actuation, and transmission solenoid valve driving requiring stable component supply across automotive production lifecycles.

Supply support for BTN70301EPAXUMA1 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 leadership in silicon carbide and intelligent power devices.

BTN70301EPAXUMA1 belongs to the NovalithIC™ Lite family-designed specifically for cost-optimized, high-reliability automotive actuators requiring integrated protection, diagnosis, and half-bridge functionality in compact packages.

FAQ

What is the function of the DEN pin on BTN70301EPAXUMA1?

The DEN (Diagnostic Enable) pin is an active-high digital input that activates the IS current sense output and clears protection latches. When asserted, it enables real-time load current monitoring and resets fault states after overtemperature or overcurrent events. If unused, DEN must be connected to GND via a 10 kΩ resistor to ensure predictable default behavior and avoid floating inputs.

Does BTN70301EPAXUMA1 support PWM motor control?

Yes, BTN70301EPAXUMA1 supports PWM operation via its IN pin, which controls high-side or low-side switching based on logic level. Its 25.5 mΩ high-side R_DS(ON) and fast switching characteristics enable efficient duty-cycle modulation up to typical automotive frequencies (≤20 kHz). The integrated charge pump ensures reliable high-side gate drive across the full 3.5–28 V supply range.

How does the InverseON feature work in practice?

InverseON allows the high-side switch to remain conductive even when load current flows opposite to the normal direction-such as during motor deceleration or solenoid release. This is achieved via internal circuitry that maintains gate voltage during reverse diode conduction, enabling controlled energy recirculation without external freewheeling paths. It is validated for inductive loads up to 3 mH.

Can BTN70301EPAXUMA1 drive inductive loads above 3 mH?

No-datasheet-specified maximum inductance is 3 mH for safe operation at nominal 7 A current. Exceeding this value risks violating voltage slew rate limits during turn-off, potentially triggering cross-current protection or exceeding V_DS clamping thresholds. For higher inductance, external snubbers or lower PWM frequency must be used, but such configurations are not validated by Infineon and void AEC-Q100 qualification guarantees.