TLC5926 Texas instruments

TLC5926

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TLC5926

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Описание

The TLC592x is designed for LED displays and LED lighting applications with open-load, shorted-load, and over temperature detection, and constant-current control. The TLC592x contains a 16-bit shift register and data latches, which convert serial input data into parallel output format. At the TLC592x output stage, 16 regulated-current ports provide uniform and constant current for driving LEDs within a wide range of VF (forward voltage) variations. Used in systems designed for LED display applications (for example, LED panels), TLC592x provides great flexibility and device performance. Users can adjust the output current from 5 mA to 120 mA through an external resistor, Rext, which gives flexibility in controlling the light intensity of LEDs. The TLC592x is designed for up to 17 V at the output port. The high clock frequency, 30 MHz, also satisfies the system requirements of high-volume data transmission.

16 Constant-Current Output Channels
Output Current Adjusted By External Resistor
Constant Output Current Range: 5 mA to 120 mA
Constant Output Current Invariant to Load Voltage Change
Open-Load and Shorted-Load Detection
256-Step Programmable Global Current Gain
Excellent Output Current Accuracy:
- Between Channels: < ±6% (Max), 10 mA to 50 mA
- Between ICs: < ±6% (Max), 10 mA to 50 mA
30-MHz Maximum Clock Frequency
Schmitt-Trigger Input
3.3-V or 5-V Supply Voltage
Thermal Shutdown for Overtemperature Protection

Features	Error Flag, Fault Detection, LED Open Detection, LED Short to Ground Detection, LED Short to VLED Detection, ON/OFF LED Driver, Thermal shutdown
Analog dimming steps	256
Data transfer rate (typ) (MHz)	30
Ch to ch accuracy (typ) (±%)	6
Rating	Catalog
Operating temperature range (°C)	-40 to 125