Whether you’re building a top-tier 5-inch racer, a powerful freestyle machine, or even pushing the limits on a 6/7-inch long-range rig using the 20×20 standard, the Biudrone 32 3220 70A ESC provides the high-current capability and robust design needed for peak performance.
Key Features:
- High-Current Performance: Capable of handling a robust 70A continuous current (75A peak) per motor, perfect for power-hungry setups. Supports a wide 2S-8S LiPo input voltage range for maximum versatility.
- Advanced Processing: Driven by the efficient AT32F421 main control chip operating at up to 128MHz, ensuring smooth and responsive motor control.
- Premium Components: Utilizes imported Japanese MOSFETs known for their quality and reliability, paired with dependable FD6288Q three-in-one gate drivers and high-quality Murata capacitors for excellent electrical stability.
- Robust PCB Engineering: Built on a high-end 8-layer PCB with 2oz thick copper and a resin plug hole process, significantly reducing heat buildup and maximizing efficiency. Features a dual pad design with metallized edge wrapping to enhance durability and prevent pads from lifting during soldering or crashes.
- BLHeli_32 Ready: Compatible with BLHeli_32 firmware (based on AT32 chip and naming convention) and supports all modern ESC protocols including DShot600, DShot300, DShot150, Multishot, Oneshot, etc., for precise control. (Note: Uses HAKRC_AT4G_Multi_32.9 Hex firmware target).
- Accurate Current Sensing: Integrated current sensor with a scale factor of 160 for accurate power consumption monitoring in Betaflight/INAV.
ESC Specifications:
MCU: AT32F421 (128MHz)
Continuous Current: 70A (x4)
Peak Current: 75A (x4)
Input Voltage: 2S-8S LiPo (Approx. 7.4V - 33.6V)
BEC: No (ESC provides motor power only)
Firmware: BLHeli_32 Compatible (Target: HAKRC_AT4G_Multi_32.9 Hex)
Supported Protocols: PWM, Oneshot125, Oneshot42, Multishot, Dshot150, Dshot300, Dshot600
Current Sensor Scale (Ratio): 160
Gate Driver: FD6288Q
MOSFETs: Imported Japanese Low-Resistance MOSFETs
Capacitors: Murata
PCB: 8-Layer, 2oz Copper
Mounting Pattern: 20mm x 20mm (M3 Holes likely, verify hole size)
Dimensions: 34mm x 42mm
Weight: 11g
(Note: Package contents like cables or capacitors are not listed, please verify with retailer.)
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