TLC5958 Series

48 channel, 16 bit ES-PWM, LED driver with pre-charge FET, LED open detection and 48k bit memory

Catalog

48 channel, 16 bit ES-PWM, LED driver with pre-charge FET, LED open detection and 48k bit memory

Part	Supplier Device Package	Number of Outputs	Voltage - Output	Topology	Voltage - Supply (Max)	Current - Output / Channel [custom]	Voltage - Supply (Min) [Min]	Package / Case	Operating Temperature [Max]	Operating Temperature [Min]	Type	Internal Switch(s)	Mounting Type	Applications
Texas Instruments TLC5958RTQT	56-QFN (8x8)	48	10 V	Shift Register	5.5 V	25 mA	3 V	56-VFQFN Exposed Pad	85 °C	-40 °C	Linear		Surface Mount	Signage
Texas Instruments TLC5958RTQR	56-QFN (8x8)	48	10 V	Shift Register	5.5 V	25 mA	3 V	56-VFQFN Exposed Pad	85 °C	-40 °C	Linear		Surface Mount	Signage

Catalog

48 channel, 16 bit ES-PWM, LED driver with pre-charge FET, LED open detection and 48k bit memory

Key Features

• 48 Channels Constant Current Sink OutputSink Current Capability with Max BC/CC data:25mA at 5VCC20mA at 3.3VCCGlobal Brightness Control (BC) : 3-Bit (8 Step)Color Brightness Control (CC) for Each Color Group:9-Bit (512 Step), Three GroupsGrayscale(GS) Control with MultiplexedEnhanced Spectrum(ES) PWM: 16bit48K bit Grayscale Data Memory Support32-multiplexingLED Power Supply Voltage Up To 10VVcc = 3.0V to 5.5VConstant Current AccuracyChannel to Channel = ±1%(Typ), ±3%(Max)Device to Device = ±1%(Typ), ±2%(Max)Data Transfer Rate: 25MHzGray Scale Clock: 33MHzLED Open Detection (LOD)Thermal Shut Down (TSD)IREFResistor Short Protection (ISP)Power-Save Mode (PSM) with high speed recoveryDelay Switching to Prevent Inrush CurrentPre-charge FET to Avoid Ghosting PhenomenonOperating Temperature : –40°C to +85°C48 Channels Constant Current Sink OutputSink Current Capability with Max BC/CC data:25mA at 5VCC20mA at 3.3VCCGlobal Brightness Control (BC) : 3-Bit (8 Step)Color Brightness Control (CC) for Each Color Group:9-Bit (512 Step), Three GroupsGrayscale(GS) Control with MultiplexedEnhanced Spectrum(ES) PWM: 16bit48K bit Grayscale Data Memory Support32-multiplexingLED Power Supply Voltage Up To 10VVcc = 3.0V to 5.5VConstant Current AccuracyChannel to Channel = ±1%(Typ), ±3%(Max)Device to Device = ±1%(Typ), ±2%(Max)Data Transfer Rate: 25MHzGray Scale Clock: 33MHzLED Open Detection (LOD)Thermal Shut Down (TSD)IREFResistor Short Protection (ISP)Power-Save Mode (PSM) with high speed recoveryDelay Switching to Prevent Inrush CurrentPre-charge FET to Avoid Ghosting PhenomenonOperating Temperature : –40°C to +85°C

Description

The TLC5958 is a 48 channels constant-current sink driver for multiplexing system with 1 to 32 duty ratio. Each channel has an individually-adjustable, 65536-step, pulse width modulation (PWM) grayscale (GS). 48K bit display memory is implemented to increase the visual refresh rate and to decrease the GS data writing frequency. The output channels are grouped into three groups, each group has 16 channels. Each group has a 512-step color brightness control (CC) function. The maximum current value of all 48 channels can be set by 8-step global brightness control (BC) function. CC and BC can be used to adjust the brightness deviation between LED drivers. GS, CC, and BC data are accessible via a serial interface port. Send request viaemailfor Application Note:Build High Density, High Refresh Rate, Multiplexing LED Panel with TLC5958. The TLC5958 has one error flag: LED open detection (LOD), which can be read via a serial interface port. The TLC5958 also has a power-save mode that sets the total current consumption to 0.8mA (typ) when all outputs are off. The TLC5958 is a 48 channels constant-current sink driver for multiplexing system with 1 to 32 duty ratio. Each channel has an individually-adjustable, 65536-step, pulse width modulation (PWM) grayscale (GS). 48K bit display memory is implemented to increase the visual refresh rate and to decrease the GS data writing frequency. The output channels are grouped into three groups, each group has 16 channels. Each group has a 512-step color brightness control (CC) function. The maximum current value of all 48 channels can be set by 8-step global brightness control (BC) function. CC and BC can be used to adjust the brightness deviation between LED drivers. GS, CC, and BC data are accessible via a serial interface port. Send request viaemailfor Application Note:Build High Density, High Refresh Rate, Multiplexing LED Panel with TLC5958. The TLC5958 has one error flag: LED open detection (LOD), which can be read via a serial interface port. The TLC5958 also has a power-save mode that sets the total current consumption to 0.8mA (typ) when all outputs are off.