TBS Lucid 90A 3-12S AM32 ESC
by Triumph Manufacturing

The TBS Lucid 90A 3-12S AM32 ESC is a high-voltage, high-current single-motor electronic speed controller engineered by Team BlackSheep for heavy-lift cinelifters, X-Class multirotors, long-range fixed-wing platforms, and commercial UAVs. Built on an 8-layer high-current density PCB, the Lucid 12S handles demanding thermal profiles and heavy payload stresses without the added weight and bulk of traditional extruded aluminum heatsinks.

Operating across a 3S to 12S LiPo (11.1V to 50.4V DC) input envelope, the ESC delivers 70A continuous current (60s), 90A high-output continuous current (40s), and a peak burst rating of 120A (30s). Developed in direct collaboration with the AM32 development team, it runs the AlkaMotors32 (AM32) firmware engine on an ARM Cortex processor, offering native support for bidirectional DShot (DShot300/600), digital RPM filtering, and KISS ESC telemetry. With integrated TVS diode protection against high-voltage induction spikes, an onboard analog current sensor, and an opto-isolated (no-BEC) architecture, it supplies dedicated motor power while weighing 19 grams.

Key Features

• High-Voltage 3S–12S LiPo Capability: Supports wide input voltages from 11.1V up to 50.4V DC, accommodating high-voltage power distribution systems on heavy-lift UAVs and cinelifters.

• 8-Layer High-Current Density PCB: Custom multi-layer copper substrate maximizes passive thermal dissipation and electrical throughput without requiring heavy heatsinks.

• Collaborative AM32 Firmware: Powered by AlkaMotors32 (AM32) 32-bit firmware, providing smooth low-RPM startup, active braking, motor timing adaptation, and bi-directional DShot support.

• Integrated TVS Spike Suppression: Factory-installed Transient Voltage Suppressor (TVS) diodes arrest high-voltage flyback spikes during aggressive throttle chops and active braking.

• KISS ESC Telemetry & Current Sensing: Features a dedicated onboard current sensor and serial telemetry output to transmit live motor RPM, temperature, voltage, and current draw to the flight controller.

• Heatsink-Free 19g Profile: Lightweight design minimizes arm weight on multi-rotor craft, improving flight times and aircraft moment of inertia.

• Large Propeller Support: Optimized to drive motors spinning propellers up to 15 inches (continuous airflow recommended for props larger than 7 inches).

• Pure Isolated Signal Path: Omits an internal BEC to isolate sensitive flight avionics and video systems from high-voltage motor electrical noise.

Technical Specifications

• Input Voltage Range: 3S – 12S LiPo (11.1V – 50.4V DC)

• Continuous Rated Current: 70A (up to 60 seconds) / 90A (up to 40 seconds)

• Peak Burst Current: 120A (up to 30 seconds)

• Firmware Platform: AlkaMotors32 (AM32)

• Firmware Target: AM32_TBS_12S_F421

• Supported Protocols: Bi-directional DShot (DShot300 / DShot600), KISS ESC Telemetry, Standard PWM

• Onboard BEC: None (Opto-isolated / No BEC)

• Current Sensor / Port: Integrated (Hardware Current Sensing Output)

• Protection Circuitry: Onboard TVS Voltage Spike Suppression Diode

• Propeller Compatibility: Up to 15" (Active airflow required for propellers above 7")

• Dimensions: 57.75 mm x 29.0 mm

• Net Weight: 19.0 grams (excluding wires and capacitors)

What Is Included

• (1) TBS Lucid 90A 3-12S AM32 ESC Module

• (1) 12AWG Power Cable with Pre-Installed XT60 Male Connector

• (1) 3-Color Signal Wire Assembly (PWM / Serial / Telemetry)

• (2) 330µF 12S Low-ESR Electrolytic Capacitors

• (1) Clear Protective Heat Shrink Tube