The CS8508E is an 8 W single‑channel audio power amplifier with ultra‑low EMI, AB/D class switching and built‑in over‑current, short‑circuit and thermal…
The CS8508E audio power amplifier from Chipstar offers high efficiency (up to 90 % in D‑class) and a wide supply range of 2.5 V to 8.8 V. Its full‑differential architecture provides excellent PSRR (‑80 dB at 217 Hz) and eliminates the need for external bypass capacitors, reducing PCB area and component count.
Typical applications include multimedia speakers and small amplifiers. The device includes over‑current, short‑circuit and over‑temperature protection, and features a pop‑and‑click suppression circuit for clean power‑on and power‑off transitions. The ESOP‑8L package supports easy thermal management with recommended PCB layout guidelines.
| Supply voltage range | 2.5 V ~ 8.8 V |
|---|---|
| Maximum output power (D‑class, 8 Ω) | 8 W |
| Maximum efficiency (D‑class) | 90 % |
| Startup time | 40 ms |
| Quiescent current | 3 mA |
| Shutdown current | < 0.1 µA |
| PSRR (217 Hz) | -80 dB |
| CMRR | -70 dB |
| Protection features | Over‑current, short‑circuit, over‑temperature, undervoltage |
| Package | ESOP‑8L |
The device operates from 2.5 V up to 8.8 V.
It includes over‑current, short‑circuit, over‑temperature and undervoltage protection, with automatic recovery after fault removal.
The amplifier can reach up to 90 % efficiency in D‑class operation.
The startup time is about 40 ms.