Texas Instruments TPS2024IDRQ1

Overview

TPS2024IDRQ1 from Texas Instruments is an automotive-qualified 3-A high-side power distribution switch with integrated N-channel MOSFET, 33-mΩ on-resistance at 5 V, logic-level enable input, and active-low overcurrent (OC) flag. It operates from 2.7 V to 5.5 V and delivers controlled power ramping for hot-plug applications in infotainment head units and body control modules.

For engineers reviewing the TPS2024IDRQ1 datasheet, TPS2024IDRQ1 pinout, TPS2024IDRQ1 application, or TPS2024IDRQ1 equivalent, key selection criteria include short-circuit current limit (2–4.2 A), thermal shutdown recovery behavior, SOIC-8 package compatibility, and OC output logic polarity for fault monitoring in automotive power domains.

Technical Context

The TPS2024IDRQ1 implements a charge-pump–driven N-channel MOSFET high-side switch with programmable current limiting via internal sense-FET architecture. Its driver controls rise/fall times (6.1 ms typical rise, 3.4 ms typical fall) to suppress inrush current and EMI during load switching.

It integrates undervoltage lockout (UVLO, ~2 V threshold), thermal protection (~140°C trip with ~20°C hysteresis), and open-drain OC output that asserts low under overcurrent or overtemperature conditions - all operating across –40°C to 125°C junction temperature range.

Key Specifications

Pinout & Package

TPS2024IDRQ1 is housed in an 8-pin SOIC (D) package with exposed pad for thermal enhancement. Pin numbering follows standard SOIC top-view orientation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TPS2022DRQ1 and TPS40210QDGQRQ1, the TPS2024IDRQ1 uniquely delivers 3-A single-chip switching with integrated fault reporting and automotive qualification - making it optimal for mid-power domain isolation where simplicity, reliability, and diagnostics are prioritized over programmability or regulation.

Availability

TPS2024IDRQ1 is available at Aetrix Electronics and suitable for automotive infotainment systems, body control modules, and ADAS camera power management requiring stable component supply and AEC-Q100 compliance.

Supply support for TPS2024IDRQ1 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

Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and automotive ICs, with decades of automotive qualification expertise and broad manufacturing scale.

The TPS202x-Q1 product line was designed specifically for automotive power distribution - delivering robust, pin-compatible high-side switches with integrated protection for ECU sub-systems requiring reliable load control and diagnostics.

FAQ

What is the maximum continuous output current rating for the TPS2024IDRQ1?

The TPS2024IDRQ1 is rated for 2 A minimum, 3 A typical, and up to 4.2 A short-circuit current limit at 25°C. Its actual continuous current capability depends on PCB thermal design and ambient temperature - at 70°C ambient with SOIC-8 on 2-layer board, derated capacity is ~1.8 A per TI's dissipation rating table. The TPS2024IDRQ1 maintains safe operation via thermal shutdown if junction temperature exceeds ~140°C.

Does the TPS2024IDRQ1 support 3.3-V logic-level enable input?

Yes, the TPS2024IDRQ1 EN pin is fully compatible with 3.3-V logic: VIH is specified at 2 V min (for 2.7–4.5 V input range), and VIL is 0.5 V max - ensuring reliable turn-on with standard 3.3-V microcontrollers. The TPS2024IDRQ1 also supports 5-V TTL/CMOS logic and features <0.5 mA enable input current, minimizing drive burden.

How does the OC pin behave during inrush current events?

The OC pin of the TPS2024IDRQ1 may assert low momentarily during hot-plug capacitor charging due to transient overcurrent detection. This is not a fault condition but a known inrush artifact. To suppress false reporting, TI recommends adding an RC filter (e.g., 10 kΩ + 100 nF) between OC and VCC - the TPS2024IDRQ1 datasheet Figure 36 confirms this mitigation technique.

Is the TPS2024IDRQ1 pin-compatible with other devices in the TPS202x-Q1 family?

Yes, all TPS202x-Q1 devices - including TPS2020IDRQ1, TPS2021IDRQ1, TPS2022DRQ1, and TPS2024IDRQ1 - share identical SOIC-8 (D) package, pinout, and footprint. Only current-limit threshold differs (0.3 A to 3 A), enabling drop-in selection based on load requirements without PCB redesign.

What thermal resistance value should be used for junction temperature calculation of the TPS2024IDRQ1?

For the SOIC-8 (D) package, the TPS2024IDRQ1 has RθJA = 172°C/W (JEDEC-standard 2-layer board). This value must be used in TJ = PD × RθJA + TA calculations. At 3 A and 33 mΩ, PD ≈ 0.3 W → TJ ≈ 52°C above ambient - well within the –40°C to 125°C operating range. The TPS2024IDRQ1 datasheet Section 18 provides full thermal design guidance.