SGM37604.pdf• 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 4 Parallel LED Strings at Up to 29.5V
• PWM Dimming Input
• I2 C 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
• 1% Matched Current Sinks Across Process,
Voltage, Temperature
• 3% Current-Sink Accuracy Across Process,
Voltage, Temperature
• 11-Bit Dimming Resolution
• Up to 90% Solution Efficiency
• Drives from One to Two Parallel LED Strings at up
to 38 V at 25 mA per String
• PWM Dimming Input
• I2C Programmable
• Selectable 500-kHz and 1-MHz Switching
Frequency With Optional –12% shift
• Auto Switch Frequency Mode (250 kHz, 500 kHz,1 MHz)
• Four Configurable Overvoltage Protection
Thresholds (17 V, 24 V, 31 V, 38 V)
• Four Configurable Overcurrent Protection
Thresholds (750 mA, 1000 mA, 1250 mA,1500 mA)
• Thermal Shutdown Protection
• Externally Selectable I2C Address Options via ASEL Input
