TDA8547中文资料音频放大器数据手册UTC规格书

描述 Description

The UTC TDA8547 is a two channel audio power amplifier for an output power of 2 × 0.7W with a 16Ω load at a 5V supply. At a low supply voltage of 3.3V an output power of 0.6W with an 8Ω load can be obtained. The circuit contains two BTL amplifiers with a complementary PNP-NPN output stage and standby/mute logic. The operating condition of all channels of the device (standby, mute or on) is externally controlled by the MODE pin. With the SELECT pin one of the output channels can be switched in the standby condition. This feature can be used for loudspeaker selection and also reduces the quiescent current consumption. When only one channel is used the maximum output power is 1.2W.

特性 Features

Selection between output channelsFlexibility in useFew external componentsLow saturation voltage of output stageGain can be fixed with external resistorsStandby mode controlled by CMOS compatible levelsLow standby currentNo switch-on/switch-off plopsHigh supply voltage ripple rejectionProtected against electrostatic dischargeOutputs short-circuit safe to ground, VCC and across the loadThermally protected