L9911 datasheet(14/20 Pages) STMICROELECTRONICS

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L9911 Arkusz danych(PDF) 14 Page - STMicroelectronics

Numer części	L9911

Szczegółowy opis	Car alternator multifunction smart voltage regulator

PDF	20 Pages

Scroll/Zoom	100%

Producent	STMICROELECTRONICS [STMicroelectronics]

Strona internetowa	http://www.st.com

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14 / 20 page

Electrical specification

L9911

14/20

DocID10990 Rev 13

3.4

Principle of phase regulation

When VB+ is above the regulated voltage, the field driver is controlled to keep phase peak

voltage from falling below VPHH1.

If phase peak voltage drops below VPHL1, phase regulation does not work.

Figure 8. Application diagram

Figure 9. High side/low side driver saturation

Figure 10. Test mode to cancel soft-start/attack

Figure 11. Soft-start enable frequency range

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