FM TC5020EJ

TC5020EJ is a driver IC designed for LED display panels. Its built-in CMOS shift register and latch function converts serial input data into parallel output data format. The input voltage range of TC5020EJ is 3.3V~5V, providing 16 current sources capable of delivering a constant current of 3~36mA per output channel to drive LEDs. The output current mismatch within a single IC is less than ±2% (IOUT = 23.8mA); ±2.5% (IOUT = 3mA); the output current mismatch between multiple ICs is less than ±3%; the current variation with output terminal voltage (VDS) is controlled within 0.1% per volt; and the current variation due to supply voltage (VDD) and ambient temperature changes is also controlled within 1%. Users can adjust the output current of each channel by selecting external resistors with different resistance values, allowing precise control of LED luminance. TC5020EJ guarantees an output voltage tolerance of 11V, enabling multiple LEDs to be connected in series at each output. In addition, TC5020EJ supports a high clock frequency input of 25MHz to meet system requirements for high-volume data transmission.

• 16 constant current output channels
• Output value unaffected by load voltage at output terminals; constant current range: 3~36mA @ Vnp = 5V; 3~20mA @ VnD = 3.3V
• Highly accurate current output: channel-to-channel maximum deviation: ±1.5% (typical); ±2.0% (maximum); chip-to-chip maximum deviation: ±1.5% (typical); ±3.0% (maximum)
• Fast output current control response: minimum pulse width = 35ns (with output consistency maintained)
• Single external resistor sets current output for all 16 driver channels
• Schmitt trigger input
• High-speed data transmission up to 25MHz
• Operating voltage range: 3.3V to 5V
• Ultra-low standby and operating current (i.e., VDD current)
• Integrated output channel overshoot suppression circuit
• SSOP-24 package (wide body: e = 1.0mm; narrow body: e = 0.635mm)

• LED displays
• Variable message signs
• LED traffic signal indicators