The MP1720DH-216-LF-Z 1720 is a high efficiency Class-D audio amplifier. It utilizes a full bridge output structure capable of delivering 2.7W into 4Ω speaker. This device exhibits the high fidelity of a class AB amplifier with an efficiency of 90% which dramatically reduces solution size by integrating the following:l 250mΩ power MOSFETs (VIN =3.3V)l Startup / Shutdown pop eliminationl Short circuit /Thermal overload ProtectionThe MP1720DH-216-LF-Z 1720 features a pin-selectable 1MHz or 1.3MHz frequency control or can be synchronized to an external clock source. The flexible switching frequency and internal EMI-reduction scheme eliminates the need for an output LC filter and passes emission standards without filter & with considerable cable.The MP1720DH-216-LF-Z 1720 has five fixed gain options. MP1720-3: 3dB; MP1720-6: 6dB; MP1720-9: 9dB; MP1720-12: 12dB; MP1720-216: 21.6dB.The MP1720DH-216-LF-Z 1720 is available in 10-pin MSOP-EP and 10-pin QFN packages.
Feature
- Passes FCC-Radiated Emissions Standards with 24inch of Cable without output filter
- 2.7W Into 4Ω with 5V VIN @ 10% THD+N
- Up to 90% Efficiency
- Flexible Switching Frequency setting
- Low Noise (53μV Typical) with 3.3V VIN
- 15ms Start-up time Eliminates pop
- Low Quiescent Current (4mA @3.3V)
- Low Shutdown Current (0.1μA)
- Full Bridge Output Drive
- Fully Differential Input
- Short circuit Protection
- Thermal Shutdown