TDA75610DLVPD datasheet(24/37 Pages) STMICROELECTRONICS

Part #	TDA75610DLVPD

Description	4 x 45 W differential power amplifier with full I2C diagnostics, high efficiency and low voltage operation

PDF	37 Pages

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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Battery transition management

TDA75610DLVPD

24/37

DocID024175 Rev 8

Battery transition management

7.1

Low voltage (“start stop”) operation

The most recent OEM specifications are requiring automatic stop of car engine at traffic

light, in order to reduce emissions of polluting substances. The TDA75610DLVPD, thanks to

its innovating design, is able to play music when battery falls down to 6/7 V during such

conditions, without producing audible pop noise. The maximum system power will be

reduced accordingly.

Worst case battery cranking curves are shown below, indicating the shape and durations of

allowed battery transitions

Figure 33. Worst case battery cranking curve sample 1

V1 = 12 V; V2 = 6 V; V3 = 7 V; V4 = 8 V

t1 = 2 ms; t2 = 50 ms; t3 = 5 ms; t4 = 300 ms; t5 =10 ms; t6 = 1 s; t7 = 2 ms

Figure 34. Worst case battery cranking curve sample 2

V1 = 12 V; V2 = 6 V; V3 = 7 V

t1 = 2 ms; t2 = 5 ms; t3 = 15 ms; t5 = 1 s; t6 = 50 ms

TDA75610DLVPD Datasheet(PDF) 24 Page - STMicroelectronics