| TYPE | DESCRIPTION |
|---|
| Mounting Style | Surface Mount |
| Frequency | 500kHz,1MHz |
| Number of Pins | 12 Pin |
| Case/Package | DSBGA-12 |
| Number of Outputs | 1 Output |
| Output Voltage | 40 V |
| Output Current | 30 mA |
| Number of Channels | 3 Channel |
| Number of Positions | 12 Position |
| Quiescent Current | 1.00 mA |
| Switching Frequency | 1 MHz |
| Topology | Boost |
| Input Voltage (Max) | 5.5 V |
| Input Voltage (Min) | 2.7 V |
| Input Voltage (DC Max) | 5.5 V |
| Input Voltage (DC Min) | 2.7 v |
| Output Voltage (Max) | 41.1 V |
| Operating Temperature (Max) | 125 ℃ |
| Operating Temperature (Min) | -40 ℃ |
| Input Voltage | 2.7V ~ 5.5V |
| TYPE | DESCRIPTION |
|---|
| Product Lifecycle Status | Active |
| Packaging | Each |
| Operating Temperature | -40℃ ~ 85℃ (TA) |
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.
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3 String Backlight Driver with 11Bits of Exponential Dimmingt
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TEXAS INSTRUMENTS LM3697YFQR Led Driver, 1 Output, Boost (Step Up), 2.7V-5.5V in, 1MHz switch, 40V/30mA out, DSBGA-12
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Evaluation Module for LM3697 Three String White LED Driver for Smartphone Handsets
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