1S Miniature Brushless Driver 3.7V-5V Without BEC 4A

3.7V–5V Miniature Brushless ESC 1S Brushless Driver Without BEC is an ultra-compact Electronic Speed Controller designed for single-cell (1S) LiPo-powered brushless motors. It offers high-efficiency motor driving in a small form factor, ideal for micro drones, mini RC vehicles, and custom robotics. This ESC does not include a Battery Eliminator Circuit (BEC), ensuring simplicity and reduced power consumption.

Key Features:

• Ultra-Compact Design: Fits in tight spaces where traditional ESCs cannot be used.
• 1S (3.7V–5V) Operation: Designed for single-cell lithium batteries, perfect for micro applications.
• Brushless Motor Support: Drives BLDC motors with smooth response and low ripple.
• High-Efficiency MOSFETs: Delivers efficient power switching with minimal heat generation.
• No BEC: Eliminates additional circuitry to keep the module compact and lightweight.

Technical Specifications:

• Operating Voltage: 3.7V to 5V (1S LiPo)
• Current Rating: Up to 10A continuous
• Control Signal: Standard PWM 1ms–2ms
• Motor Type: 3-phase brushless DC motor
• Firmware: Preloaded with basic throttle response
• Throttle Calibration: Manual or automatic on power-up

Mechanical Specifications:

• Board Dimensions: ~15 x 10 x 3 mm (approx.)
• Weight: ~1.2 grams
• Connectors: Solder pads (no connectors pre-installed)
• Heat Dissipation: No heatsink required for typical 1S operation

Mounting Options:

• Direct Soldering: Pads available for ESC-to-motor and ESC-to-battery wiring
• Lightweight Mounting: Can be mounted using double-sided tape or hot glue for micro builds

Schematic Diagram, Connection, Wiring and Pinout:

• Motor Wires: 3-phase outputs (A, B, C) to brushless motor windings
• Battery Input: + (VCC) and – (GND) solder pads for 1S LiPo input
• PWM Signal: Signal input wire (typically white/yellow), and GND
• No BEC Output: No regulated 5V output provided

Datasheet and Documentation:

• Download 1S Mini ESC Technical Datasheet (PDF)

Applications:

• Micro Quadcopters: Ideal for racing drones and DIY nano drones
• RC Airplanes: Used in ultra-light indoor and park flyers
• Robotics: Controls mini brushless motors for drive systems or gimbals
• FPV Systems: Powers compact propulsion systems without adding weight
• Wearables: Lightweight enough for integration into wearable tech

Equivalent Models:

• Mini ESC 1S by Racerstar: Similar performance and dimensions
• LittleBee 1S ESC: Compact form factor and programmable firmware
• Flycolor Raptor 1S ESC: Lightweight design for micro drones

Package Includes:

• 1 x 3.7V–5V Miniature Brushless ESC (No BEC)