LM3697YFQR Semiconductors - ICs by Texas Instruments

LED DRIVER PWM/ANALOGUE 1MHZ DSBGA-12

Status: Unknown
Series: -
RoHS: Unknown
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The LM3697 11-bit LED driver provides highperformance 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 highvoltage current sink. The LM3697 is fully configurable via an I2Ccompatible 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.

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Prices starting from US$0.21

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Specifications

Device Topology Boost (Step Up)
Input Voltage Min 2.7V
Input Voltage Max 5.5V
Output Voltage Max 41.1V
Output Current Max 30mA
Switching Frequency 1.1MHz
No. of Outputs 1Outputs
IC Mounting SMD
Driver Case Style DSBGA
No. of Pins 12Pins
Operating Temperature Min -40°C
Operating Temperature Max 125°C
Product Range -
Automotive Qualification Standard -
RoHS Phthalates Compliant Yes
MSL MSL 1 - Unlimited
SVHC No SVHC (27-Jun-2018)
Dimming Control Type Analogue PWM
Output Current 30mA
Output Voltage 40V
Topology Boost (Step Up)

Alternative Descriptions

3 String backlight driver with 11-bits of Exponential dimming | Texas Instruments


Frequently Asked Questions

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The LM3697YFQR is listed under Electronic & Electrical Components > Semiconductors - ICs > Driver & Interface ICs.

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Is the LM3697YFQR RoHS compliant?

This part has not been flagged as RoHS Compliant.

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