TDA7563 datasheet(13/20 Pages) STMICROELECTRONICS

部件名	TDA7563

功能描述	MULTIFUNCTION QUAD POWER AMPLIFIER WITH BUILT-IN DIAGNOSTICS FEATURES

PDF	20 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

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13 / 20 page

13/20

TDA7563

Figure 21. Thermal Foldback Diagram

I2C PROGRAMMING/READING SEQUENCES

A correct turn on/off sequence respectful of the diagnostic timings and producing no audible noises could be as

follows (after battery connection):

TURN-ON: PIN2 > 7V --- 10ms --- (STAND-BY OUT + DIAG ENABLE) --- 500 ms (min) --- MUTING OUT

TURN-OFF: MUTING IN --- 20 ms --- (DIAG DISABLE + STAND-BY IN) --- 10ms --- PIN2 = 0

Car Radio Installation: PIN2 > 7V --- 10ms DIAG ENABLE (write) --- 200 ms --- I2C read (repeat until All faults

disappear).

OFFSET TEST: Device in Play (no signal) -- OFFSET ENABLE - 30ms - I2C reading (repeat I2C reading until

high-offset message disappears).

Tj ( °C)

TH. SH.

START

TH. SH.

END

Vout

TH. WARN.

Tj ( °C)

Vout

Tj ( °C)

> TSD (with same input

signal)

< TSD

CD out

TDA7563 数据表(PDF) 13 Page - STMicroelectronics