MLS3535A Constant current LED driver IC SOP-8

MLS3535A Constant Current LED Driver IC is a highly integrated constant-current sink driver IC designed for driving LED displays. It supports wide voltage input, PWM dimming, and accurate current control, making it ideal for signage, automotive dashboards, and decorative lighting. The IC is housed in a compact SOP-8 package.

Key Features:

• Constant Current Output: Ensures consistent LED brightness across voltage variations.
• Built-in PWM Dimming: Supports LED brightness control via external signal.
• Thermal Protection: Automatically reduces current or shuts down under over-temperature.
• Wide Operating Voltage: Operates from 3V to 5.5V supply range.
• Low Power Consumption: Efficient operation for battery-powered applications.

Technical Specifications:

• Input Voltage: 3.0V to 5.5V
• Output Current: Up to 100mA per channel
• Channels: Single channel output
• Operating Temperature: -40°C to +85°C
• Current Accuracy: ±5%
• ESD Protection: 4kV HBM

Mechanical Specifications:

• Package: SOP-8 (Small Outline Package)
• Pin Count: 8 pins
• Package Dimensions: 5.0 x 6.2 x 1.5 mm (approx.)
• Lead Pitch: 1.27mm

Mounting Options:

• SMD (Surface Mount Device): Suitable for automated PCB assembly
• Standard Reflow Compatible: Designed for IR and hot air soldering

Schematic Diagram, Connection, Wiring and Pinout:

• Pin 1 (OUT): LED current sink output
• Pin 2 (GND): Ground
• Pin 3 (DIM): PWM dimming control input
• Pin 4 (NC): Not connected
• Pin 5 (NC): Not connected
• Pin 6 (VDD): Power supply input
• Pin 7 (EN): Enable input (active high)
• Pin 8 (SET): Current set resistor pin

Datasheet and Documentation:

• Download MLS3535A Datasheet (PDF)

Applications:

• LED Indicators: Used in industrial control panels and appliances
• Backlighting: Drives LEDs in LCD panels and instrument clusters
• Automotive Displays: Suitable for dashboards and interior lighting
• Decorative Lighting: Provides constant current for uniform brightness
• Consumer Electronics: Used in routers, modems, and media devices

Equivalent Models:

• PT4115: Step-down constant current LED driver IC with PWM dimming
• AMC7135: Precision 350mA constant current regulator
• AL9910: Wide input range constant current LED driver controller

Package Includes:

• 1 x MLS3535A LED Driver IC (SOP-8)