AN2810 datasheet(4/17 Pages) STMICROELECTRONICS

No de pièce	AN2810

Description	6-row 85 mA LED driver with boost

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Fabricant	STMICROELECTRONICS [STMicroelectronics]

Site Internet	http://www.st.com

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4 / 17 page

LED7707 main features

AN2810

4/17

Doc ID 14893 Rev 1

1

LED7707 main features

1.1

Boost section

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4.5 V to 36 V input voltage range

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Internal power MOSFET

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Internal +5 V LDO for device supply

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Up to 36 V output voltage

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Constant frequency peak current-mode control

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250 kHz to 1 MHz adjustable switching frequency

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External sync for multi-device application

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Pulse-skip power saving mode at light load

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Programmable soft-start

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Programmable OVP (overvoltage protection)

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Single ceramic output capacitor

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Non-latched thermal shutdown

1.2

Backlight driver section

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Six rows with 85 mA maximum current capability (adjustable)

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Up to 10 WLEDs per row

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Parallelable rows for higher current

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Row disable option

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Less than 10 µs minimum dimming time

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±2% current matching between rows

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LED failure (open and short-circuit) detection

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