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Updated at 17/06/2025 10:30:15(UTC+8)

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Description

The STLED524 is an intelligent matrix LED Display Driver. It can drive each dot with a current up to 20mA. Rows of the matrix are multiplexed. Each LED in a row is driven by a separate low-side current mirror. Current regulators are supplied by an integrated boost DC to DC converter. Its output voltage can be adjusted by the internal register to optimize efficiency according to the type of LEDs (their forward voltage). This reduces current mirror power dissipation and improves overall efficiency. It also includes an internal LDO regulator, which can provide a supply voltage for an additional circuitry. Maximum current, provided by each current mirror, is adjusted by RSET resistor. Current of each LED (dot) can be dimmed in 255 steps due to settings of internal registers. It features PWM dimming in 255 steps. Automatic slope function is also supported. Cycle time and slope time can be adjusted for each LED (dot) separately.
5x24 LED matrix driver
Adjustable luminance separately for each LED thanks to internal registers in 255 steps
Internal registers store 2 patterns
4-way Scroll function with the possibility to lock column data
PWM dimming in 255 steps
Adjustable blanking time
Automatic slope function
Cycle time and slope time adjustable for each dot separately
SPI interface
Integrated step-up converter with adjustable output voltage
Integrated LDO with 3.1V output at 80mA
Boost efficiency 92% at 350mA

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STLED524 Specifications

Attribute	Attribute Value

Datasheet	Datasheet
3D Model	3D Model
Mounting Style	Surface Mount
Number of Pins	56 Pin
Case/Package	BGA-56
Number of Outputs	29 Output
Input Voltage (DC)	3.7 V
Output Voltage	2.8V ~ 4.6V
Output Current	0.48 A
Number of Channels	2 Channel
Number of Positions	56 Position
Switching Frequency	2.4 MHz
Input Voltage (Max)	5.5 V
Input Voltage (Min)	2.7 V
Input Voltage (DC Max)	5.5 V
Input Voltage (DC Min)	2.7 v
Output Voltage (Max)	4.6 V
Output Voltage (Min)	2.8 V
Output Current (Max)	480 mA
Operating Temperature (Max)	85 ℃
Operating Temperature (Min)	-30 ℃
Supply Voltage	2.7V ~ 5.5V
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Operating Temperature	-30℃ ~ 85℃
Product Lifecycle Status	Active
Packaging	Tape & Reel (TR)
RoHS	RoHS Compliant
Lead-Free Status	Lead Free
REACH SVHC Compliance	No SVHC
REACH SVHC Compliance Edition	2015/12/17
ECCN Code	EAR99

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SN:H1.49193LO29520V37Q0QC0S0

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