TLC5957

Product Folder Sample & Buy Technical Documents Tools & Software Support & Community TLC5957 SLVSCQ4 – OCTOBER 2014 TLC5957 48-Channel, 16-Bit ES-PWM LED Driver with Pre-Charge FET, LED OPEN Detection and Caterpillar Cancelling 1 Features 1 48 Constant-Current Sink Output Channels Sink Current Capability with Max BC/CC data – 1~20mA (VCC = 3.3V) – 1~25mA (VCC = 5V) Global Brightness Control (BC): 3-Bit (8 Step) Global Brightness Control (CC) for Each Color Group: 9-Bit (512 Step), Three Groups LED Power Supply Voltage up to 10V VCC = 3.0 to 5.5V Knee Voltage Vout = 0.24V at 10mA Constant Current Accuracy – Channel to Channel = ±1%(Typ), ±3%(Max) – Device to Device = ±1%(Typ), ±2%(Max) Data Transfer Rate : 33MHz Grayscale Control Clock : 33MHz Pre-charge FET for Ghost Cancelling Enhanced Circuit for Caterpillar Cancelling Selectable Data Transfer Bit and PWM Bit (9 bit to 16 bit) Selectable Traditional PWM and ES-PWM LED Open Detection (LOD) Thermal Shut Down (TSD) Auto Display Repeat/Auto Data Refresh Delay Switching to Prevent Inrush Current Operating Temperature : –40°C to +85°C 2 Applications LED Video Displays LED Signboards 3 Description The TLC5957 is a 48-channel constant current sink driver. Each channel has an individually-adjustable, 65536-step, pulse width modulation (PWM) grayscale (GS) brightness control. The output channels are divided into three groups, each group has a 512 step color brightness control (CC), CC ...