MP3309

2.7V-5.5Vin, 1.5A, Synchronous Boost WLED Driver for Tablet and Smart Phone

Datasheet

概要

The MP3309 is a WLED step-up converter for 2.7V-to-5.5V input that uses peak-current mode to regulate the LED current sensed through an external, low-side resistor. The 200mV feedback voltage and synchronous rectification reduces power loss and reduces PCB space requirements. For non-synchronous mode, setting an internal register can disable the rectifier MOSFET to save driver losses.
The MP3309 features a programmable switching frequency to optimize efficiency. It supports both analog and PWM dimming.
In addition, the MP3309 has LED open protection, cycle-by-cycle current limit protection, Under voltage protection and thermal shutdown protection -. The I2C interface can set the protection indication bits and over-voltage protection point.

機能と利点

2.7V-to-5.5V Input Voltage
Analog and PWM Dimming
Selectable Synchronous or Non-synchronous Mode
400kHz I2C-Compatible Interface
Digitally-Set LED Current
Programmable Switching Frequency
Programmable Over VoltageProtection Point
Low 200mV Feedback Voltage with ±1%
Software- or Hardware-Enable Function
Internal Soft Start
UVLO, Thermal Shutdown, OCP
Available in a 1.4mm ×1.8mm QFN-10 package
MP3309—Default Analog Dimming (PWMH) by external PWM signal input
MP3309C—Default I2C Interface

アクティブ部品番号

MP3309AGQ-P MP3309AGQ-P MP3309AGQ-Z MP3309CGQG-P MP3309CGQG-P MP3309CGQG-Z MP3309GQG-P MP3309GQG-P MP3309GQG-Z MP3309LGQG-P MP3309LGQG-P MP3309LGQG-Z

Evaluation Tools

EV3309-QG-00A Evaluation Kit 40mA, Synchronous Boost White LED Driver with I2 C Interface Evaluation Board

The EV3309-QG-00A is designed for the MP3309, a WLED driver. The device has a 2.7V to 5.5V input voltage range and uses peak current mode control to regulate the LED current sensed through an external, low-side resistor. Synchronous rectification and the 200mV feedback voltage reduce power loss and PCB size. To save driver losses, select non-synchronous mode by using an internal register to disable the rectifier MOSFET.

The MP3309 features a configurable switching frequency to optimize efficiency. It supports both analog and PWM dimming. In addition, the MP3309 has LED open protection, cycle-by-cycle current limit protection, under-voltage protection (UVP), and thermal shutdown protection.

The I2C interface can set the protection indication bits and the over-voltage protection (OVP) threshold.

The MP3309 is available in a QFN-10 (1.4mmx1.8mm) package

￥8,148.75
+ tax

設計リソース

シンボル、フットプリント＆3Dモデル

30種以上のフォーマット Show more