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WLEDs in Two Strings Independent PWM Dimming and 1-Wire Dimming Control PWM Dimming Frequency from 20k to 100kHz Up to 10 Bit Dimming Resolution
Products ▶ LED Drivers ▶ RGB & White LED Drivers ▶ RT4531
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Dimming Control I2C;PWM
Products ▶ LED Drivers ▶ Backlight LED Drivers ▶ RT4539A
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RT4503 supports PWM-Analog dimming, while RT4503A supports 32 step pulse dimming
About Richtek ▶ Product Newsletters ▶ Newsletter Issue 6
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Dimming Control I2C;PWM;PWM-to-Analog
Products ▶ LED Drivers ▶ Backlight LED Drivers ▶ RT4539
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4 EN Enable Control Input (PWM Dimming
https://www.richtek.com/assets/product_file/RT4533=RT4533A/DS4533A-02.pdf
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LED Current Accuracy ADJ Pin for Analog Dimming and PWM Dimming Limited Max Switching Frequency at Low Percentage Dimming Input Under Voltage Lockout Thermal
Products ▶ LED Drivers ▶ Backlight LED Drivers ▶ RT8420
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Switch Wide Range for PWM Dimming (100Hz to 200kHz) Minimize the External
https://www.richtek.com/assets/product_file/RT9293/DS9293-04.pdf
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with Accuracy ±3% and Matching ±2% Dimming Controls Direct PWM Dimming up to 20kHz and Minimum On-Time to 400ns PWM to Analog Dimming up to 20kHz with 9-bit Resolution PWM
https://www.richtek.com/assets/product_file/RT4539/DS4539-01.pdf
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Current Regulation with ±3% Accuracy Dimming Controls► Direct PWM Dimming up to 20kHz and Minimum On-Time to 500ns► PWM to Analog Dimming up to 20kHz with 8 bit resolution
Products ▶ LED Drivers ▶ RGB & White LED Drivers ▶ RT8543A
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a flag output is vailable to indicate fault conditions to the local USB controller
Design Support ▶ Design Reference ▶ EVB_RT9742AGJ5F
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