General Description
●The MAX4364/MAX4365 are bridged audio power amplifiers intended for portable audio devices with internal speakers. The MAX4364 is capable of deliver ing 1.4W from a single 5V supply and 500mW from a single 3V supply into an 8Ω load. The MAX4365 is capable of delivering 1W from a single 5V supply and 450mW from a single 3V supply into an 8Ω load. The MAX4364/MAX4365 feature 0.04% THD + N at 1kHz, 68dB PSRR at 217Hz and only 10nA of supply current in shutdown mode.
●The MAX4364/MAX4365 bridged outputs eliminate the need for output-coupling capacitors, minimizing external component count. The MAX4364/MAX4365 also include internal DC bias generation, clickless operation, short-circuit and thermal-overload protection. Both devices are unity-gain stable, with the gain set by two external resistors.
●Features
●♦ 1.4W into 8Ω Load (MAX4364)
●♦ 1W into 8Ω Load (MAX4365)
●♦ 0.04% THD + N at 1kHz
●♦ 68dB PSRR at 217Hz
●♦ 2.7V to 5.5V Single-Supply Operation
●♦ 5mA Supply Current
●♦ Low-Power, 10nA Shutdown Mode
●♦ Pin Compatible with the LM4861/LM4862/LM4864 (MAX4364)
●♦ Clickless Power-Up and Shutdown
●♦ Thermal-Overload and Short-Circuit Protection
●♦ Available in Thin QFN, µMAX, and SO Packages
●Applications
● Cellular Phones
● PDAs
● Two-Way Radios
● General-Purpose Audio
