See datasheet for actual packaging/pinout drawings

Packaging

Package | PIN:

YFQ | 12

Temp:

Q (-40 to 125)

ECO Plan:

Green (RoHS & no Sb/Br)

LM3697YFQR


3 String Backlight Driver with 11-bits of Exponential Dimming

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100 - 249 $ 0.81
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750 - 999 $ 0.46
1000 - 9999 $ 0.36

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Texas Instruments LM3697YFQR

The LM3697 11-bit LED driver provides high-performance backlight dimming for 1, 2, or 3 series LED strings while delivering up to 90% efficiency. The boost converter with integrated 1-A, 40-V MOSFET automatically adjusts to LED forward voltage to minimize headroom voltage and effectively improve LED efficiency.

The LM3697 is a high-efficiency three-string power source for backlight or keypad LEDs in smart-phone handsets. The high-voltage inductive boost converter provides the power for three-series LED strings for display backlight and keypad functions (HVLED1, HVLED2 and HVLED3).

An additional feature is a pulse width modulation (PWM) control input for content adjustable backlight control, which can be used to control any high-voltage current sink.

The LM3697 is fully configurable via an I2C-compatible interface. The device operates over a
2.7-V to 5.5-V input voltage range and a −40°C to 85°C temperature range.

For all available packages, see the orderable addendum at the end of the data sheet.

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