Description

TDA7269asa is an AB -class dual audio power supply AM amplifier, assembled in @Clipwatt 11 packs, specifically designed for high -quality sound applications and design high -quality music center And stereo TV.

TDA7269asa and TDA7269, TDA7269A, TDA7269SA, TDA7265, TDA7499, TDA7499SA.

Single power application

S quiet standby function

Pin 5 (silent/standby) control the state of the amplifier through two different thresholds , That is+vs.

-When VPIN5 is higher than +VS-2.5V, the amplifier is in the standby mode and the last-class generator is closed.

-When VPIN5 is between+VS-2.5V and VS-6V, the last current generator will be opened and the amplifier is in the mute mode.

-When VPIN5 is lower than +vs-6V, the amplifier is in the playback mode.

Test and application circuit (stereo configuration)

The component layout

] The size of the radiator:

In order to avoid heat protection intervention, it is placed at TJ

150 ° C. Essence

The parameters that affect the size marking are:

-The maximum dispersion power of the device (PDMAX)

Example:

Figure shows the power of the device the power of the device During the reduction curve.

Power drop curve

You can use thermal lubrication to reduce the additional thermal resistance of the contact between the component and the radiator.

When the pressure is 7-10 kilograms, it is well contacted, and the design of the clip must avoid maximum pressureThe contact pressure between it and the plastic shell is 15 kg/square millimeter.