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                  SGM37603A

                  Highly Efficient Triple-String White LED Driver
                   
                  Highly Efficient Triple-String White LED Driver
                  GENERAL DESCRIPTION

                  The SGM37603A is an ultra-compact, highly efficient, triple-string white-LED driver designed for LCD display backlighting. The device operates over the 3V to 24V input voltage, it can power up to 8 series LEDs at up to 40mA per string. An adaptive current regulation method allows for different LED voltages in each string while maintaining current regulation.
                  The LED current is adjusted via an I2C interface or through a logic level PWM input. The SGM37603A is available in Green WLCSP-1.78×1.36-12B and TDFN-3×3-12L packages. It operates over the -40 to +85 temperature range.

                  PIN CONFIGURATIONS

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                  FEATURES
                  • 11% Matched Current Sinks across Process, Voltage and Temperature at ILED = 12.21μA

                  • 1% Matched Current Sinks across Process, Voltage and Temperature at ILED = 25mA

                  • 11% Current Sink Accuracy across Process, Voltage and Temperature at ILED = 12.21μA

                  • 3% Current Sink Accuracy across Process, Voltage and Temperature at ILED = 25mA

                  • 12-Bit Dimming Resolution

                  • Up to 90% Solution Efficiency

                  • Drive from 1 to 3 Parallel LED Strings at Up to 29.5V

                  • PWM Dimming Input

                  • I2C Programmable

                  • Phase Shift Function

                  • Hybrid PWM + Current Dimming for Higher LED Driver Optical Efficiency

                  • 1.2MHz Switching Frequency

                  • Low EMI by Conducting Ringing Cancelling

                  • Over-Voltage Protection

                  • Over-Current Protection

                  • Thermal Shutdown Protection

                  APPLICATIONS

                  Power Source for Smart Phone and Tablet Backlighting

                  ORDERING INFORMATION
                  Part NumberStatusPackagePinsPb-FreeTemp Range
                  SGM37603AYG/TRProductionWLCSP-1.78×1.36-12B12Y-40℃ to +85℃Samples
                  SGM37603AYTDF12G/TRProductionTDFN-3×3-12L12Y-40℃ to +85℃Samples

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