LTK5110 LTK5112 audio amplifier chip

LTK5110 LTK5112

Introduction

The LTK5110 is a 4Ω-27W, differential structure, Class-F audio power amplifier and LTK5112 is 4Ω-32W. They operate at a voltage range of 6-15V. The differential input structure provides effective noise interference suppression. The Class-F mode control and shutdown control of the LTK5110 and LTK5112 are integrated into a single pin. Through this pin, the chip can be controlled to open, close, switch between AB and D classes freely, which significantly saves I/O ports. In AB class, it can completely eliminate EMI interference, and in D class amplifier mode, it can achieve efficiency higher than 90%. The innovative filter-free structure eliminates the need for a traditional D-class amplifier output low-pass filter. The LTK5110 and LTK5112 are packaged in ESOP-8.

Features

• Input voltage range: 6V-14.5V
• Filter-free Class-D/AB amplifier with low static current and low EMI.
• FM mode with excellent burst noise suppression circuit for ultra-low noise and ultra-low distortion.
• 10% THD+N, VDD=14V, provides output power up to 27W into a 49 + 33UH load.
• 1% THD+N, VDD=12V, provides output power up to 20W into a 49 + 15UH load.
• Over-temperature protection, short-circuit protection.

Appearance