STMicroelectronics STEVAL-TTM001V1

Overview

STEVAL-TTM001V1 from STMicroelectronics is a 5 kW, 48 V automotive-grade BLDC motor inverter evaluation kit comprising three integrated boards: a power board with 36× STH315N10F7 100 V/2.1 mΩ/180 A H²PAK-6 MOSFETs on insulated metal substrate (IMS), a driver board based on AEC-Q100-qualified L9907 three-phase gate driver with SPI diagnostics and programmable gate current, and dedicated bulk capacitor and current sensing boards. It targets high-current traction and auxiliary motor control in 48 V mild-hybrid vehicles.

For engineers reviewing the STEVAL-TTM001V1 datasheet, STEVAL-TTM001V1 pinout, STEVAL-TTM001V1 application, or STEVAL-TTM001V1 equivalent, this kit enables validation of ST's STripFET F7 MOSFETs and L9907 driver in real-world automotive BLDC inverter topologies - including thermal management via NTCs, shunt-based phase current sensing, overvoltage/overcurrent/V_DS-drop protection, and motor position feedback interface via Hall/encoder connectors.

Technical Context

The kit implements a six-switch three-phase inverter topology using dual H²PAK-6 power modules per phase (6 high-side + 6 low-side STH315N10F7 devices), driven by a single L9907 IC that delivers independent high- and low-side gate drive with programmable peak current (via GCR resistor) and integrated V_DS monitoring for overcurrent detection. Gate signals are routed through 2.2 Ω decoupling resistors to damp ringing and ensure robust switching.

Current sensing uses three ground-referenced shunt resistors with dedicated amplifiers on the current sensor board, while thermal protection relies on six NTC thermistors (two per phase) placed adjacent to MOSFET arrays on the IMS power board. The driver board provides full diagnostic reporting - including overtemperature, undervoltage, overvoltage, and fault latching - via SPI interface to an external motor control MCU.

Key Specifications

Availability

STEVAL-TTM001V1 is available at Aetrix Electronics and suitable for automotive BLDC motor control, 48 V mild-hybrid traction inverters, and electric power steering (EPS) development requiring stable component supply and automotive-grade validation support.

Supply support for STEVAL-TTM001V1 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

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing microcontrollers, power semiconductors, sensors, and analog ICs for automotive, industrial, and consumer applications.

This kit belongs to ST's STEVAL motor control evaluation platform family, engineered specifically to accelerate development and validation of AEC-Q100-compliant inverter systems using ST's automotive-qualified power devices and drivers.

FAQ

Is STEVAL-TTM001V1 compatible with external motor control MCUs?

Yes - the driver board features a standardized 34-pin ST Motor Control connector that accepts PWM inputs and delivers diagnostic outputs (FS_FLAG, fault flags, SPI data) to any compatible external MCU. The kit does not include a controller; it is designed as a slave inverter stage interfacing with host motor control boards such as ST's X-CUBE-MCSDK-compatible platforms.

What thermal management features does the power board include?

The power board uses an insulated metal substrate (IMS) for superior heat dissipation and mounts six NTC thermistors - two per motor phase (U/V/W) - placed immediately adjacent to each MOSFET array. These provide localized thermal feedback to the L9907 driver, enabling real-time overtemperature shutdown and thermal derating decisions.

Can the current sensing board be used independently?

No - the current sensing board is not sold separately and lacks standalone power or interface circuitry. It connects exclusively to the driver board via dedicated headers and relies on the L9907's internal amplifiers and ADC reference paths. Its shunt-based sensing is calibrated and optimized only within the full kit stack.

Does the kit support regenerative braking or bidirectional current flow?

The STH315N10F7 MOSFETs have intrinsic body diodes rated for continuous conduction, and the L9907 supports synchronous rectification control. However, the kit's default firmware and hardware layout are configured for motoring operation only; regenerative braking requires custom gate timing, external DC-link voltage monitoring, and software-level energy recovery logic not provided out-of-box.