TLC59582 Series

48-channel, 16-bit ESPWM LED driver with pre-charge FET, LOD Caterpillar and 16-multiplexing support

Catalog

48-channel, 16-bit ESPWM LED driver with pre-charge FET, LOD Caterpillar and 16-multiplexing support

Part	Current - Output / Channel [custom]	Package / Case	Voltage - Output	Supplier Device Package	Voltage - Supply (Max)	Mounting Type	Type	Operating Temperature [Max]	Operating Temperature [Min]	Internal Switch(s)	Applications	Number of Outputs	Topology	Voltage - Supply (Min) [Min]
Texas Instruments TLC59582RTQT	25 mA	56-VFQFN Exposed Pad	10 V	56-QFN (8x8)	5.5 V	Surface Mount	Linear	85 °C	-40 °C		Signage	48	Shift Register	3 V
Texas Instruments TLC59582RTQR	25 mA	56-VFQFN Exposed Pad	10 V	56-QFN (8x8)	5.5 V	Surface Mount	Linear	85 °C	-40 °C		Signage	48	Shift Register	3 V

Catalog

48-channel, 16-bit ESPWM LED driver with pre-charge FET, LOD Caterpillar and 16-multiplexing support

Key Features

• 48 Constant-Current Sink Output ChannelsSink Current Capability with Max BC/CC data:25 mA at 5 VCC20 mA at 3.3 VCCGlobal Brightness Control (BC): 3-Bit (8-Step)Color Brightness Control (CC) for Each ColorGroup: 9-Bit (512-Step), Three GroupsLED Power Supply Voltage Up To 10 VVCC= 3.0 V to 5.5 VConstant Current AccuracyChannel-to-Channel = ±1%(Typ), ±3%(Max)Device-to-Device = ±1%(Typ), ±2%(Max)Data Transfer Rate: 25 MHzGray Scale Clock: 33 MHzPre-Charge FET to Avoid Ghosting PhenomenonEnhanced Circuit for Caterpillar CancellingLow-Grayscale EnhancementLED Open Detection (LOD)Thermal Shut Down (TSD)Operating Temperature: –40°C to 85°C48 Constant-Current Sink Output ChannelsSink Current Capability with Max BC/CC data:25 mA at 5 VCC20 mA at 3.3 VCCGlobal Brightness Control (BC): 3-Bit (8-Step)Color Brightness Control (CC) for Each ColorGroup: 9-Bit (512-Step), Three GroupsLED Power Supply Voltage Up To 10 VVCC= 3.0 V to 5.5 VConstant Current AccuracyChannel-to-Channel = ±1%(Typ), ±3%(Max)Device-to-Device = ±1%(Typ), ±2%(Max)Data Transfer Rate: 25 MHzGray Scale Clock: 33 MHzPre-Charge FET to Avoid Ghosting PhenomenonEnhanced Circuit for Caterpillar CancellingLow-Grayscale EnhancementLED Open Detection (LOD)Thermal Shut Down (TSD)Operating Temperature: –40°C to 85°C

Description

The TLC59581/82are 48-channel constant-current sink drivers. Each channel has an individually-adjustable, 65536-step, pulse width modulation (PWM) grayscale (GS) brightness control. The TLC59581 can support 32-multiplexing while TLC59582 can support 16-multiplexing. The output channels are divided into three groups. Each group has a 512-step color brightness control (CC). CC adjusts brightness control between colors. The maximum current value of all 48 channels can be set by 8-step global brightness control (BC). BC adjusts brightness deviation between LED drivers. GS, CC and BC data are accessible through a serial interface port. See application noteBuild High Density, High Refresh Rate, Multiplexing LED Panel with TLC59581, SLVA744. The TLC59581/82 device has one error flag: the LED open detection (LOD), which can be read through a serial interface port. To resolve this caterpillar issue caused by an open LED, the TLC59581/82 device has an enhanced circuit for caterpillar canceling, thermal shut down (TSD) and IREFresistor short protection (ISP), which ensures a higher system reliability. The TLC59581/82 device also has a power-save mode that sets the total current consumption to 0.8 mA (typical) when all outputs are off. The TLC59581/82 device is a good solution to improve display performance of a multiplexing panel for low-grayscale patterns. The TLC59581/82are 48-channel constant-current sink drivers. Each channel has an individually-adjustable, 65536-step, pulse width modulation (PWM) grayscale (GS) brightness control. The TLC59581 can support 32-multiplexing while TLC59582 can support 16-multiplexing. The output channels are divided into three groups. Each group has a 512-step color brightness control (CC). CC adjusts brightness control between colors. The maximum current value of all 48 channels can be set by 8-step global brightness control (BC). BC adjusts brightness deviation between LED drivers. GS, CC and BC data are accessible through a serial interface port. See application noteBuild High Density, High Refresh Rate, Multiplexing LED Panel with TLC59581, SLVA744. The TLC59581/82 device has one error flag: the LED open detection (LOD), which can be read through a serial interface port. To resolve this caterpillar issue caused by an open LED, the TLC59581/82 device has an enhanced circuit for caterpillar canceling, thermal shut down (TSD) and IREFresistor short protection (ISP), which ensures a higher system reliability. The TLC59581/82 device also has a power-save mode that sets the total current consumption to 0.8 mA (typical) when all outputs are off. The TLC59581/82 device is a good solution to improve display performance of a multiplexing panel for low-grayscale patterns.