Texas Instruments LM5060EVAL/NOPB

Overview

LM5060EVAL/NOPB from Texas Instruments is an evaluation board designed to demonstrate the LM5060 high-side protection controller in real-world over-voltage, under-voltage, and over-current protection applications. It implements a single N-channel MOSFET (SUM40N10-30-E3) with 25 mΩ R_DS(ON), supports 9–37 V input range, delivers up to 5.0 A load current, and features configurable UVLO/OVP thresholds and 18.2 ms over-current fault delay.

For engineers reviewing the LM5060EVAL/NOPB datasheet, LM5060EVAL/NOPB pinout, LM5060EVAL/NOPB application, or LM5060EVAL/NOPB equivalent, this board enables rapid validation of high-side protection architecture, gate drive timing, fault response behavior, and layout considerations for compact 1.35″ × 2.25″ power management designs.

Technical Context

The LM5060EVAL/NOPB implements TI's LM5060 high-side protection controller in a fully assembled, test-point-equipped PCB layout optimized for functional verification. It integrates resistive dividers (R1–R3) for adjustable UVLO (8.0–8.8 V) and OVP (37.1 V typical), a 9.09 kΩ sense resistor (R4), and a 0.1 µF timer capacitor (C1) setting start-up (33.3 ms), transition (15.5 ms), and over-current fault (18.2 ms) delays.

Inductive kick-back protection is implemented via TVS diode D1 (SMBJ51A-13-F) and capacitor C4 (22 pF), while output status monitoring is provided at the nPGD-driven STATUS test point. The board supports EN pin control (≥2.0 V to enable), includes GND, INPUT, OUTPUT, and STATUS screw terminals, and allows reconfiguration of protection thresholds without component replacement.

Key Specifications

Availability

LM5060EVAL/NOPB is available at Aetrix Electronics and suitable for automotive battery protection, industrial power rail supervision, telecom DC distribution, and embedded system hot-swap evaluation requiring stable component supply and documented reference design validation.

Supply support for LM5060EVAL/NOPB 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 company headquartered in Dallas, Texas, delivering analog, embedded processing, and power management solutions across industrial, automotive, and communications markets.

The LM5060EVAL/NOPB belongs to TI's high-side protection evaluation platform family, developed specifically to accelerate design-in of the LM5060 controller in 12 V/24 V power systems requiring robust fault management, low quiescent current operation, and compact PCB implementation.

FAQ

What is the primary function of the LM5060EVAL/NOPB?

The LM5060EVAL/NOPB is an evaluation board that demonstrates the LM5060 high-side protection controller in operation. It validates over-voltage, under-voltage, over-current, and inductive kick-back protection functions using a configured SUM40N10-30-E3 MOSFET. The LM5060EVAL/NOPB is not a standalone IC but a ready-to-test hardware platform for verifying protection timing, threshold accuracy, and fault response in real circuits.

Can the LM5060EVAL/NOPB be used with input voltages outside 9–37 V?

No - the LM5060EVAL/NOPB is configured with fixed resistor dividers (R1–R3) setting UVLO at ~8.0–8.8 V and OVP at ~37.1 V. Input voltages below 9 V will trigger UVLO shutdown; above 37 V may exceed D1's 51 V clamping rating and risk damage. To evaluate other ranges, R1–R3 must be recalculated and replaced per the LM5060 datasheet (SNVS628); the LM5060EVAL/NOPB itself is not rated beyond its configured limits.

How is over-current protection set on the LM5060EVAL/NOPB?

Over-current protection on the LM5060EVAL/NOPB is set by the 9.09 kΩ sense resistor (R4) and the R_DS(ON) of Q1 (0.025 Ω), yielding a typical trip threshold of 5.8 A. The actual threshold varies between 4.6 A and 6.9 A due to comparator offset and sense current tolerances. The LM5060EVAL/NOPB uses a 0.1 µF timer capacitor (C1) to provide 18.2 ms fault detection delay - confirmed in Figure 4 and Section 8 of the user's guide.

Does the LM5060EVAL/NOPB include a built-in status indicator?

Yes - the LM5060EVAL/NOPB provides a STATUS test point directly connected to the LM5060's nPGD (power good) output. STATUS is low when the LM5060 is enabled and operating normally (SENSE < OUT); it goes high during fault conditions (SENSE > OUT) or when EN is pulled low. This signal is electrically identical to the nPGD pin on the LM5060 IC and requires no additional circuitry to monitor.

Is the LM5060EVAL/NOPB compatible with electronic loads?

Electronic loads can be used with the LM5060EVAL/NOPB but require caution: their low impedance during voltage ramp-up causes high inrush current through Q1, risking overstress. The user's guide recommends resistive loads for startup and normal evaluation. If using an electronic load, ensure slow voltage slew rate and current limiting; the LM5060EVAL/NOPB's 33.3 ms start-up delay helps mitigate but does not eliminate this risk.