HXJ8002 3W Mono BTL Audio Amplifier Board Module 2.0–5.5V
HXJ8002 3W Mono BTL Audio Amplifier Board Module 2.0–5.5V
HXJ8002 Mini Audio Power Amplifier Board – 3W Mono Channel BTL
Upgrade your DIY audio projects with the compact HXJ8002 Audio Power Amplifier Board Module. Delivering 3 Watts of mono BTL output with a wide supply voltage range of 2.0V to 5.5V, this tiny SMD board punches well above its size. Whether you're building a portable speaker, a desktop computer audio system, or an embedded electronics project, this module provides clean, stable amplification with an ultra-low noise floor.
The HXJ8002 IC is engineered for low-voltage, high-efficiency applications — making it ideal for battery-powered gadgets and microcontroller-based builds alike. Its BTL (Bridge-Tied Load) topology maximises output power from a single supply, giving your speaker the drive it needs without a bulky power stage.
Made in Mainland China.
Key Features
- Output Power: 3W Mono Channel (BTL configuration)
- Supply Voltage: 2.0V – 5.5V (compatible with 3.3V & 5V systems)
- Chip: HXJ8002 — low-noise, high-efficiency audio amplifier IC
- Package: SMD (Surface Mount Device) — compact form factor
- Operating Temperature: -40°C to +85°C — wide industrial range
- Low EMI & Minimal Signal Noise — clean audio output
- Condition: Brand new
- No high-concern chemicals (RoHS-friendly)
- Suitable for computers, portable speakers, DIY audio & embedded systems
Specifications
| IC Model | HXJ8002 |
| Channel | Mono (1 Channel) |
| Output Power | 3W (BTL) |
| Supply Voltage | 2.0V – 5.5V |
| Package Type | SMD |
| Operating Temp. | -40°C to +85°C |
| Quantity | 1 Module |
| Origin | Mainland China |
What's in the Box?
- 1 × HXJ8002 3W Mono BTL Audio Amplifier Board Module
Perfect For
- Arduino / Raspberry Pi speaker projects
- Portable Bluetooth speaker builds
- Computer desktop audio
- Low-voltage embedded audio systems
- Electronics hobbyists & makers
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Frequently Asked Questions
Q: What voltage does the HXJ8002 amplifier board support?
A: The HXJ8002 audio amplifier board module operates on a supply voltage of 2.0V to 5.5V, making it fully compatible with standard 3.3V and 5V microcontroller platforms such as Arduino and Raspberry Pi.
Q: What is BTL configuration and why does it matter?
A: BTL stands for Bridge-Tied Load. This topology connects the speaker between two output pins driven in opposite phase, effectively doubling the voltage swing across the load. The result is up to 4× the output power compared to a single-ended design at the same supply voltage — giving you a full 3W mono output from a compact low-voltage board.
Q: Is this board suitable for beginners and DIY makers?
A: Yes! The HXJ8002 amplifier module is designed with simplicity in mind. Its compact SMD form factor integrates easily into breadboard or PCB-based projects, and minimal external components are required to get it running with a speaker.
Q: What kind of speaker can I connect to this amplifier board?
A: The HXJ8002 BTL amplifier board is designed to drive a mono speaker (typically 4Ω or 8Ω). It is ideal for small to medium portable speakers and embedded audio output applications.