Texas Instruments LM5150RUMEVM

Overview

The LM5150RUMEVM from Texas Instruments is an evaluation module designed to validate the LM5150-Q1 wide-VIN automotive boost controller IC in cranking scenarios, supporting 2.5V–40V input and delivering ≥8.5V at up to 2.94A output current with automatic PMOS bypass switching for efficiency optimization.

For engineers reviewing the LM5150RUMEVM datasheet, LM5150RUMEVM test setup, LM5150RUMEVM layout, or LM5150RUMEVM bill of materials, this EVM provides a production-representative platform to characterize cold-cranking response, light-load skip-cycle operation, conducted EMI performance (150kHz–108MHz), and full-load efficiency (82% at 2.5V_IN, 92% at 5V_IN).

Technical Context

This EVM implements a synchronous boost converter topology centered on the LM5150-Q1 controller, featuring a 440kHz fixed-frequency PWM architecture with external synchronization capability via J4 jumper. It integrates a 1.5µH power inductor (PA4342.152NLT), dual MOSFETs (IPD90P04P405ATMA1 P-channel bypass switch and BUK9Y7R2-60E N-channel main switch), and a Schottky output diode (FSV20100V) for high-efficiency operation across automotive battery transients.

Designed specifically for ISO 16750-2 and SAE J1113-11 cranking simulation, the LM5150RUMEVM supports validated test configurations using the TI HVAL068A cranking simulator and includes dedicated test points (J6/J10 for input, J8/J9 for output, TP2 for switch node) and configurable VSET jumpers (J7) to select output voltages of 6.8V, 7.5V, 8.5V, or 10.5V under varying load conditions up to 2.94A.

Key Specifications

Availability

LM5150RUMEVM is available at Aetrix Electronics and suitable for automotive power system validation, cranking transient testing, and boost converter reference design development requiring stable component supply and traceable evaluation hardware.

Supply support for LM5150RUMEVM 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, specializing in analog, embedded processing, and automotive-grade power management solutions with broad manufacturing scale and automotive AEC-Q100 qualification expertise.

The LM5150RUMEVM belongs to TI's Automotive Power Management Evaluation Module product line, engineered to accelerate validation of wide-input-voltage DC/DC controllers in harsh automotive environments-particularly for start-stop systems, infotainment power rails, and ADAS subsystems requiring robust cranking performance.

FAQ

What is the primary function of the LM5150RUMEVM?

The LM5150RUMEVM is a fully assembled evaluation module built to demonstrate and validate the LM5150-Q1 automotive boost controller IC. It enables engineers to assess real-world performance-including cold-cranking response, efficiency across 2.5V–40V input, 8.5V output regulation at 2.94A, and automatic PMOS bypass switching-without designing custom hardware. The LM5150RUMEVM includes all critical passives, power MOSFETs, and test infrastructure per TI's SNVU561 User's Guide.

Does the LM5150RUMEVM support external clock synchronization?

Yes, the LM5150RUMEVM supports external clock synchronization via its SYNC input (TP2), configurable through jumper J4. When J4 is shorted (default), the module operates in internal free-running mode at ~440kHz. When J4 is open, an external clock signal can be applied to synchronize multiple converters-critical for noise-sensitive automotive applications. This capability is documented in Figure 4 ("Clock Synchronization") of the LM5150RUMEVM User's Guide (SNVU561).

What input voltage is required to start up the LM5150RUMEVM?

The LM5150RUMEVM requires a minimum 6V input voltage to achieve >5V at the output and initiate proper startup. Once operational, it sustains regulation down to 2.5V input-enabling validation of cranking behavior where battery voltage collapses. This startup requirement is explicitly stated in Table 1 ("Electrical Performance Specifications") and Section 1 ("Features and Electrical Performance") of the LM5150RUMEVM User's Guide.

How is output voltage configured on the LM5150RUMEVM?

Output voltage on the LM5150RUMEVM is set via jumper bank J7, which selects one of eight preconfigured VSET modes (e.g., #3–#4 = 8.5V/2.9A). Each mode configures feedback resistors to deliver a specific regulated output-6.8V, 7.5V, 8.5V, or 10.5V-across the full 2.5V–40V input range. Table 4 ("VSET Setting") in the LM5150RUMEVM User's Guide details all combinations and corresponding load/current ratings.

Is the LM5150RUMEVM compliant with automotive EMC standards?

The LM5150RUMEVM has been tested for conducted emissions per CISPR 22/EN 55022 Class A, with published results covering 150kHz–30MHz and 30MHz–108MHz bands (Figures 8 and 9). While not certified for end-equipment compliance, it provides representative EMI data to guide layout, filtering, and shielding decisions for automotive designs. Users must perform final system-level EMC validation per ISO 11452 and CISPR 25 requirements.