Texas Instruments TPS16414DRCR

Overview

TPS16414DRCR from Texas Instruments is a 40V, 1.8A power-limiting eFuse IC with integrated IN-to-OUT short detection, ±5% accurate 15W power limiting, 152mΩ typical R_ON, and auto-retry fault response. It operates from 4.5V to 40V input, supports dV/dt-controlled inrush protection, and delivers robust overvoltage, overtemperature, and transient overload protection in appliance power rails.

For engineers reviewing the TPS16414DRCR datasheet, TPS16414DRCR pinout, TPS16414DRCR application, or TPS16414DRCR equivalent, key selection criteria include its 15W IEC60335/UL60730-compliant power limiting accuracy, absence of IN-to-OUT short detection (unlike TPS16410/TPS16411), auto-retry behavior, and QFN-10 3×3mm package compatibility with thermal vias to GND.

Technical Context

The TPS16414DRCR implements a precision power-limiting architecture using an internal 152mΩ N-channel FET and analog feedback loop that regulates output power (P_OUT = V_OUT × I_OUT) to a resistor-programmed setpoint on the PLIM pin. It features configurable blanking time via PDLY capacitor to tolerate motor startup surges without false tripping.

Unlike current-limiting variants (e.g., TPS16412), it does not support ILIM-based current regulation or IDLY timing; instead, it uses PLIM/PDLY for power-setpoint and transient immunity. Its FLT pin provides active-low fault indication for MCU monitoring or external PFET control, but lacks IN-to-OUT short detection - confirmed by Device Comparison Table and Section 4 of the datasheet.

Key Specifications

Pinout & Package

VSON-10 (DRC) package: 3.0mm × 3.0mm body, 0.5mm pitch, exposed PowerPAD™ thermal pad soldered to GND plane. Requires ≥4 thermal vias under PowerPAD™ per TI layout guidelines for thermal reliability.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar eFuse power-protection applications.

Compared with TPS16414DRCR, TPS16411DRCR adds mandatory IN-to-OUT short detection and latched fault behavior, while TPS25982LDDAR trades simplicity for digital configurability and higher accuracy - making TPS16414DRCR optimal for fixed-function, auto-recovering 15W appliance protection.

Availability

TPS16414DRCR is available at Aetrix Electronics and suitable for refrigerator control boards, oven display modules, and HVAC actuator power stages requiring stable component supply, long-term lifecycle support, and safety-standard compliance.

Supply support for TPS16414DRCR 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 power management ICs, with decades of expertise in industrial-grade protection devices.

The TPS1641x family was designed specifically for safety-critical, low-power circuit (LPC) protection in white goods and building automation - delivering certified 15W power limiting in a thermally optimized 3×3mm QFN.

FAQ

Does TPS16414DRCR support IN-to-OUT short detection?

No, TPS16414DRCR does not support IN-to-OUT short detection. Per the Device Comparison Table and Section 4 of the datasheet, only TPS16410, TPS16411, TPS16412, and TPS16413 include this feature. TPS16414DRCR is explicitly marked "N" for IN-OUT Short Detection, distinguishing it from TPS16411DRCR which offers identical power-limiting functionality plus short detection.

What is the maximum programmable power limit for TPS16414DRCR?

The TPS16414DRCR supports output power limiting up to 39.8W (typical) using a 255kΩ resistor on the PLIM pin at –40°C to +85°C ambient. At 25°C, the typical limit is 37W. The device achieves ±5% accuracy at the 15W calibration point per IEC60335, but higher setpoints trade absolute accuracy for extended range.

How does the auto-retry behavior of TPS16414DRCR work after a power-limit fault?

After a power-limit fault triggers, TPS16414DRCR disables the internal FET and asserts FLT low. It then waits for a retry delay of 8 × t_PDLY (e.g., 52ms with 6.5ms PDLY capacitor) before re-enabling the FET. If the fault persists, the cycle repeats - enabling self-recovery in intermittent overload scenarios like HVAC damper stalling.

Can TPS16414DRCR be used with input voltages below 4.5V?

No, TPS16414DRCR requires a minimum 4.5V input voltage per Recommended Operating Conditions. Unlike current-limiting variants (TPS16412/TPS16413), it is not rated for 2.7V operation. Attempting to operate below 4.5V may result in undefined behavior, failure to enable, or inaccurate power limiting.

What thermal design guidance applies to TPS16414DRCR's PowerPAD™?

The TPS16414DRCR's PowerPAD™ must be soldered to a solid GND plane with ≥4 thermal vias (0.3mm diameter, spaced ≤1mm apart) beneath the pad. This achieves the specified 43.7°C/W θ_JA and prevents thermal shutdown under 1.8A continuous load at +85°C ambient, as validated in TI's thermal characterization data.