مدار مجتمع (آی سی) آی‌سی مدیریت توان (پی‌ام‌آی‌سی) آی‌سی درایور ال‌ای‌دی

Product Attributes

Introduction

FM6363C is a driver IC specifically designed for full-color LED display applications. The FM6363C incorporates a 16-bit shift register that converts serial input data into grayscale pixel values for each output channel. The 16 constant-current output channels of the FM6363C deliver output current independent of the load voltage at the output terminals, providing consistent and stable output current unaffected by the PCB, with excellent noise immunity. FM6363C not only allows output current adjustment via external resistors of different resistance values, but also supports software-adjustable channel current gain to control LED display brightness. FM6363C adopts Fuman's patented EPWM display technology with intelligent pulse width modulation, enhancing low-grayscale visual performance.

FM6363C supports 33–64 scan LED scanning displays. Through technological innovation, it effectively addresses issues such as low-grayscale banding, color deviation, mottling, first-row dimness, high-contrast coupling, and cross-panel color differences. Via real-time error detection, FM6363C can independently detect open-circuit conditions on each individual LED without any additional external components. FM6363C's novel ghost-cross elimination feature resolves erroneous display of surrounding LEDs caused by defective LED pixels. In addition, the built-in blanking/clamping circuit, combined with various configuration bits, significantly enhances blanking/clamping capability, effectively eliminating upper/lower ghosting and text ghosting artifacts. A coupling optimization enhancement feature greatly improves various display defects including cross-panel coupling, high-contrast coupling, and mid-contrast coupling. A black-screen power-saving function is also included to reduce power consumption during black-screen states.

Features

• Operating voltage: VDD = 3.3V ~ 5.5V
• Constant current output range: at 5V supply: 0.5 ~ 25mA; at 4.2V supply: 0.5 ~ 18mA; at 3.3V supply: 0.5 ~ 10mA
• Highly accurate current output: maximum channel-to-channel deviation: < ±2%; maximum chip-to-chip deviation: < ±2%
• Built-in 12-bit SRAM supporting 33 ~ 64 scan time-division multiplexing
• EPWM grayscale control technology for improved low-grayscale visual performance (Macroblock patent)
• 8-bit current gain adjustment: 12.5% ~ 200%
• Effectively reduces cross-board coupling and high-contrast coupling issues
• 8-level adjustable constant current knee point; LED fault handling: eliminates cross-pattern artifacts caused by dead LEDs; LED open-circuit detection
• Built-in blanking and enhanced blanking
• Fast output current response time (OE) minimum: 20ns @ VDD = 5V
• GCLK frequency multiplication technology
• Black screen power saving, reduced black screen power consumption
• Operating temperature range: Topr = -40 ~ 85°C
• Clock frequency up to 30MHz
• Package options: SSOP-24 (e = 0.635mm); AN: QFN-24-4×4-0.5mm; BN: QFN-24-4×4-0.5mm