TLC5911 Datasheet, PDF (1/30 Pages) Texas Instruments – LED DRIVER

D Drive Capability and Output Counts
– 80 mA (Current Sink) x 16 Bits
D Constant Current Output Range
– 5 to 80 mA (Current Value Setting for All
Output Terminals Using External Resistor
and Internal Brightness Control Register)
D Constant Current Accuracy
– ± 4 % (Maximum Error Between Bits)
D Voltage Applied to Constant Current Output
Terminals
– Minimum 0.4 V (Output Current 5 mA to
40 mA)
– Minimum 0.7 V (Output Current 40 mA to
80 mA)
D 1024 Gray Scale Display
– Pulse Width Control 1024 Steps
D Brightness Adjustment^†
– All Output Current Adjustment for 64
Steps (Adjustment for Brightness
Deviation Between LED Modules)
– Output Current Adjustment by Output
(OUT0 to OUT15) for 128 Steps
(Adjustment for Brightness Deviation
Between Dots)
– Brightness Control by 16 Steps
Frequency Division Gray Scale Control
Clock (Brightness Adjustment for Panel)
D Gray Scale Clock Generation
– Gray Scale Control Clock Generation by
Internal PLL or External Input Selectable
D Clock Invert/Noninvert Selectable at
Cascade Operation
– Clock Invert Selectable to Reduce
Changes in Duty Ratio
† _{Adjustable for these functions independently.}
‡ _{Allows to write all the data at port A by setting.}
TLC5911
LED DRIVER
SLLS402 – DECEMBER 1999
D Protection
– Watchdog Timer (WDT) Function (Turn
Output Off When Scan Signal Stopped)
– Thermal Shutdown (TSD) Function (Turn
Output Off When Junction Temperature
Exceeds Limit)
D LOD
– LED Open Detection (Detection for LED
Disconnection)
D Data Input/Output^‡
– Port A (for Data Display)
– Clock Synchronized 10 Bit Parallel Input
(Schmitt-Triggered Input)
– Clock Synchronized 10 Bit Parallel
Output (3-State Output)
– Port B (for Dot Correction Data)
– Clock Synchronized 7 Bit Parallel Input
(Schmitt-Triggered Input)
– Clock Synchronized 7 Bit Parallel Output
D Input/Output Signal Level
– CMOS Level
D Power Supply Voltage
– 4.5 V to 5.5 V (Logic, Analog and
Constant Current)
– 3 V to 5.5 V (Interface)
D Maximum Output Voltage . . . 15 V
D Data Transfer Rate . . . 20 MHz (Max)
D Gray Scale Clock Frequency
– 16 MHz (Max) Using Internal PLL
– 8 MHz (Max) Using External Clock
D Operating Free-Temperature Range
– 20°C to 85°C
D 100-Pin Package HTQFP (P_D = 4.7 W,
T_A = 25°C)
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Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
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Copyright © 1999, Texas Instruments Incorporated
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