1. Product Overview: MP3376GR & EV3376-R-00A Evaluation Board

️· Product: The MP3376GR is a synchronous boost LED driver IC designed for driving strings of LEDs (specifically for backlighting applications like in tablets and automotive displays). It uses I2C communication for configuration and control.
️· Evaluation Board (EV3376-R-00A): This board is a testing platform to demonstrate and evaluate the MP3376GR. It allows users to experiment with the IC and its features. The board dimensions are 7cm x 0.45cm x 0.6cm.
️· Key Features (MP3376GR):
- Boost topology (increases voltage)
- Synchronous operation (more efficient)
- I2C communication for control
- Various protection features:
■ Overvoltage Protection (OVP)
■ Current Limiting (Cycle by Cycle)
■ Adjacent Pin Short Test Capability.
■ Fuse Protection
- Wide input voltage range (3-30V)
- RoHS compliant (environmentally friendly)

2. Bill of Materials (BOM)

The BOM lists all the components on the evaluation board. Key items include:

️· MP3376GR: The main IC.
️· Passive Components: Resistors, capacitors, inductors, diodes, and a fuse.
️· Connector: SO-8 connector (MP1) (optional)
️· Specific Manufacturers: The BOM specifies manufacturers (e.g., Murata, Yageo, Wurth) and part numbers for each component.

3. Quick Start Guide: Getting Started with the Evaluation Board

️· Power Connections: Connect a power supply (3-30V) to the VIN and GND pins.
️· LED Connections: Connect the LED strings to the Vout and LED1-8 pins. For unused LED strings, connect the LEDx pin to GND using a 0Ω resistor.
️· Enable: Connect the EN pin to a signal that's high (>1.5V) to enable the circuit.
️· I2C Communication: Connect the evaluation board's SCL, SDA, and GND pins to a programmable I2C controller.
️· Dimming: For external dimming, connect a PWM signal to the PWM terminal. For internal dimming, simply pull the PWM pin to ground.
️· Configuration: Use the I2C interface and associated GUI (detailed in a separate guide) to configure the MP3376GR and set parameters.
️· Operation: After power up, the LED strings should light up. The PWM duty cycle determines the brightness.

4. Key Technical Specifications

️· Input Voltage (VIN): 3 - 30 Volts
️· Output Voltage (VLED): Maximum 34.5 Volts
️· LED Strings: Up to 8 strings
️· LED Current (ILED): Maximum 50mA per string
️· Dimensions: 7cm x 0.45cm x 0.6cm (Evaluation Board)

5. Regulatory Compliance
️· The MP3376GR is lead-free, halogen free and adheres to RoHS directive.



Glossary of Terms:

️· Boost Topology: A type of DC-DC converter that increases voltage.
️· Synchronous: Refers to an operational mode that utilizes an external MOSFET instead of a diode, resulting in higher efficiency.
️· I2C: (Inter-Integrated Circuit) A serial communication protocol used for configuring and controlling integrated circuits.
️· PWM: (Pulse Width Modulation) A technique to control the average power delivered to a device by varying the duty cycle of a signal.
️· RoHS: (Restriction of Hazardous Substances) A directive limiting the use of certain hazardous substances in electrical and electronic equipment.
️· OVP: Over Voltage Protection: Circuit protection mechanism that shuts down the circuit to prevent damage from overvoltage conditions
️· BOM: Bill of Materials - List of components used.
️· DUTY CYCLE: proportion of one period in which a signal is active.