Overview of 8002B:
The 8002B is an AB class, monaural bridge-tied load (BTL) audio power amplifier with shutdown mode. It operates as an audio power amplifier at 1KHz, 5V input. It features THD<10% at 2W output with a 4Ω load and THD<1% at 1KHz, 5V input. Total harmonic distortion and noise within the audio range are less than 1% (20Hz to 20KHz). The 8002B application circuit is simple, requiring only a few peripheral components to deliver high-quality output power. The 8002B output does not require external coupling capacitors, pull-up capacitors, buffering networks, or feedback resistors.
8002B Sampling SOP Packaging, specially designed for low-power, compact portable systems. The 8002B can reduce power consumption by entering sleep mode; it features an internal overheat auto-shutoff protection mechanism. The 8002B operates stably with a stable unit gain. Amplifier voltage gain can be adjusted by configuring peripheral resistors, facilitating application. It's a typical chip that enjoys widespread market popularity and high user recognition.
Application Fields of 8002B:
Personal Computer
Portable consumer electronics
Passive Speaker
Toys and gaming machines
Key features of the 8002B chip:
High output power (4Ω, 1kHz frequency), THD+N < 10% (3W); THD+N < 1% (2W).
Low power-down leakage current: 25µA (typical)
Sample SOP8 Package
External gain adjustable
Wide operating voltage range: 2V-6.5V
No drive output coupling capacitors, bootstrap capacitors, and buffering networks required.
Unit Gain Stability
5V Input, Shutdown Voltage, Turn-On Voltage 1.2V
8002B Internal Schematic Diagram:
Typical Application Diagram for 8002B:
