The LM3697 is a high-efficiency three-string power source for backlight or keypad LEDs in smartphones. It features an inductive boost converter with an integrated 1-A, 40-V MOSFET that automatically adjusts to LED forward voltage to minimize headroom voltage. The device drives three parallel high-voltage LED strings, supporting up to 30mA per current sink and reaching up to 90% efficiency. It is fully configurable via an I2C-compatible interface and includes a PWM input for Content Adjustable Backlight Control (CABC).
Temp Range-40 to 125°C
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Technical Specifications
Texas Instruments LM3697 technical specifications.
General
| Number of Channels | 3count |
| Input Voltage (Min) | 2.7V |
| Input Voltage (Max) | 5.5V |
| Output Voltage (Max) | 40V |
| LED Current per Channel | 30mA |
| Switching Frequency | 1100kHz |
| Peak Efficiency | 91% |
| Dimming Resolution | 11bits |
| Operating Temperature | -40 to 125°C |
Compliance
| RoHS | Compliant |
| REACH | Affected |
Datasheet
Texas Instruments LM3697 Datasheet
Download the complete datasheet for Texas Instruments LM3697 to view detailed technical specifications.
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