Texas Instruments TPS16632RGET

Overview

TPS16632RGET from Texas Instruments is a 60V, 6A industrial eFuse with integrated 31mΩ FET, adjustable current limit (0.6–6A ±7%), fixed 39V overvoltage clamp, and adjustable output power limiting (PLIM) for IEC61010-1/UL1310 compliance. It delivers precise load protection in factory automation I/O modules and motor drive encoder supplies.

For engineers reviewing the TPS16632RGET datasheet, TPS16632RGET pinout, TPS16632RGET application, or TPS16632RGET equivalent, key selection criteria include its 4.5–60V operating range, ±2% UVLO/OVP accuracy, thermal regulation during inrush, PGOOD signaling for DC/DC enable control, and 24-pin VQFN package with PowerPad™ thermal management.

Technical Context

The TPS16632RGET implements dual-stage overcurrent protection: fast-trip (1µs response at 45A) for hard shorts and programmable thermal-regulated current limiting (0.6–6A) for sustained overloads. Its PLIM function uses an external resistor on the PLIM pin to set output power limits (e.g., 100W at R_PLIM = 100kΩ), enabling compliance with safety standards without external circuitry.

It features independent analog monitoring via IMON (±6% gain accuracy), configurable fault response (latch-off or auto-retry via MODE pin), and slew-rate control via dVdT pin capacitor (22nF yields ~8.35ms ramp time). The device operates across –40°C to +125°C with 31.4°C/W junction-to-ambient thermal resistance in its 4mm × 4mm VQFN package.

Key Specifications

Pinout & Package

TPS16632RGET uses a 4mm × 4mm, 24-pin VQFN package (RGE) with exposed PowerPad™ thermally connected to PCB ground plane. Pin 1 is top-left corner (marked), and PowerPad™ must be soldered for thermal performance.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TPS26632RGET, TPS16632RGET offers integrated PLIM and fixed OVP clamp for simpler safety-compliant designs, while LT4320IMS#PBF provides lower R_ON and tighter current accuracy at the cost of added external components for power limiting and overvoltage protection.

Availability

TPS16632RGET is available at Aetrix Electronics and suitable for factory automation I/O modules, motor drive encoder supplies, and electronic circuit breakers requiring stable component supply, long-term industrial lifecycle support, and certified safety compliance.

Supply support for TPS16632RGET 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 solutions for industrial, automotive, and communications markets.

The TPS1663x family is designed for robust industrial power protection-specifically targeting hot-swap, inrush control, and safety-standard compliance in 4.5–60V systems such as PLCs, motor drives, and telecom infrastructure.

FAQ

What is the maximum continuous output current supported by the TPS16632RGET?

The TPS16632RGET supports a continuous output current up to 6A, with adjustable current limiting from 0.6A to 6A (±7% accuracy). Its 31mΩ R_ON results in <1.1W conduction loss at 6A, enabling operation within thermal limits in properly heatsinked PCB layouts. Derating applies above +85°C ambient per the R_θJA = 31.4°C/W specification.

Does the TPS16632RGET provide overvoltage protection, and how does it differ from other devices in the TPS1663x family?

Yes, the TPS16632RGET provides fixed 39V overvoltage clamp protection-unique to this variant. Unlike TPS16630 (adjustable OVP cutoff) or TPS16637 (no OVP), TPS16632RGET clamps excess voltage internally without external components. This feature is confirmed in the Device Comparison Table and Electrical Characteristics section (V_OVC = 35.7–39V).

How is output power limiting configured on the TPS16632RGET, and what is its accuracy?

Output power limiting on the TPS16632RGET is configured using an external resistor (R_PLIM) from the PLIM pin (Pin 7) to GND. With R_PLIM = 100kΩ, the device limits output power to 100W (±6% accuracy). The PLIM function is exclusive to TPS16632 and TPS16637 variants, and its accuracy is verified in Figure 6-7 and Electrical Characteristics table.

What thermal protection mechanisms does the TPS16632RGET implement during inrush events?

The TPS16632RGET implements thermal regulation at 145°C (typical) with a 1.25s timeout (t_{Treg_timeout}). When charging large capacitive loads, it automatically reduces output slew rate to limit junction temperature. If regulation fails to achieve full output within 1.25s, the FET turns off-behavior confirmed in Section 8.3.1.1 and Electrical Characteristics (T_{J_REG} and t_{Treg_timeout}).

Can the TPS16632RGET be used in systems requiring UL 2367 and IEC 62368-1 certification?

Yes, the TPS16632RGET is UL 2367 recognized (File No. E169910) and IEC 62368-1 certified, as explicitly stated in the Features section. These certifications validate its suitability for end-equipment safety compliance, including industrial control panels and power distribution units where third-party agency approval is mandatory.