TLC5921 Series

16-channel LED driver with 20Mhz data transfer rate

Catalog

16-channel LED driver with 20Mhz data transfer rate

Part	Frequency	Current - Output / Channel	Supplier Device Package	Internal Switch(s)	Voltage - Supply (Max)	Operating Temperature [Min]	Operating Temperature [Max]	Topology	Type	Mounting Type	Voltage - Output	Package / Case	Package / Case [x]	Package / Case [y]	Number of Outputs	Voltage - Supply (Min) [Min]
Texas Instruments TLC5921DAPR	20 MHz	80 mA	32-HTSSOP		5.5 V	-20 °C	85 C	Shift Register	Linear	Surface Mount	17 V	32-PowerTSSOP	0.24 in	6.1 mm	16	4.5 V
Texas Instruments TLC5921DAPG4	20 MHz	80 mA	32-HTSSOP		5.5 V	-20 °C	85 C	Shift Register	Linear	Surface Mount	17 V	32-PowerTSSOP	0.24 in	6.1 mm	16	4.5 V

Catalog

16-channel LED driver with 20Mhz data transfer rate

Key Features

• Drive Capability and Output Counts80 mA (Current Sink) x 16 BitsConstant Current Output Range1 to 80 mA ( Current Value Setting for All Output Terminals Using External Resistor)Constant Current Accuracy±1% (Typ)±4% (Max) (Maximum Error Between Bits, All Bits On)Voltage Applied to Constant Current Output TerminalMinimum 0.6 V (Output Current 40 mA)Minimum 1 V (Output Current 80 mA)Data InputClock Synchronized 1 Bit Serial InputData OutputClock Synchronized 1 bit Serial Output (With Timing Selection)Input/Output Signal Level...CMOS LevelPower Supply Voltage...4.5 V to 5.5VMaximum Output Voltage...17 V (Max)Data Transfer Rate...20 MHz (Max)Operating Free-Air Temperature Range-20°C to 85°CAvailable in 32 Pin HTSSOP DAP Package (PD=3.9 W,TA= 25°C)LOD Function...LED Open Detection(Error Signal Output at LED Disconnection)TSD Function...Thermal Shutdown (Turn Output Off When Junction Temperature Exceeds Limit)Drive Capability and Output Counts80 mA (Current Sink) x 16 BitsConstant Current Output Range1 to 80 mA ( Current Value Setting for All Output Terminals Using External Resistor)Constant Current Accuracy±1% (Typ)±4% (Max) (Maximum Error Between Bits, All Bits On)Voltage Applied to Constant Current Output TerminalMinimum 0.6 V (Output Current 40 mA)Minimum 1 V (Output Current 80 mA)Data InputClock Synchronized 1 Bit Serial InputData OutputClock Synchronized 1 bit Serial Output (With Timing Selection)Input/Output Signal Level...CMOS LevelPower Supply Voltage...4.5 V to 5.5VMaximum Output Voltage...17 V (Max)Data Transfer Rate...20 MHz (Max)Operating Free-Air Temperature Range-20°C to 85°CAvailable in 32 Pin HTSSOP DAP Package (PD=3.9 W,TA= 25°C)LOD Function...LED Open Detection(Error Signal Output at LED Disconnection)TSD Function...Thermal Shutdown (Turn Output Off When Junction Temperature Exceeds Limit)

Description

The TLC5921 is a current-sink constant current driver incorporating shift register and data latch. The current value at constant current output can be set by one external register. The device also incorporates thermal shutdown (TSD) circuitry which turns constant current output off when the junction temperature exceeds the limit, and LED open detection (LOD) circuitry to report the LED was disconnected. The TLC5921 is a current-sink constant current driver incorporating shift register and data latch. The current value at constant current output can be set by one external register. The device also incorporates thermal shutdown (TSD) circuitry which turns constant current output off when the junction temperature exceeds the limit, and LED open detection (LOD) circuitry to report the LED was disconnected.