Datasheet > MP3364

MP3364

更新时间： 2024-11-22 17:01:23

品牌	Logo	应用领域
芯源 - MPS		驱动驱动器
页数	文件大小	规格书
25页	1655K
描述
4 通道升压 WLED 驱动器，每通道最大电流为 150mA 且具有 15000:1 调光比和 I2C 接口

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MP3364 数据手册

MP3364

4-Channel, Maximum 150mA/Ch

Boost WLED Driver

with 15000:1 Dimming Ratio and I²C

DESCRIPTION

FEATURES

The MP3364 is a step-up converter with four

channel current sources. The device is

designed to drive white LED arrays as

backlighting for small- or medium-sized LCD

panels.

 3.5V to 36V Input Voltage Range

 4 Channels with Maximum 150mA per

Channel

 Internal 100mΩ, 50V MOSFET

 Configurable f_SWUp to 2.2MHz

 External Sync SW Function

 Multi-Dimming Operation Mode through

PWM Input, Including:

The device uses peak current mode as its PWM

control architecture to regulate the boost

converter. Four channel current sources are

applied to the LED cathode to adjust the LED

brightness. The MP3364 regulates the current

in each LED string to the value set by an

external current-setting resistor, with 2.5%

current regulation accuracy between strings.

o Direct PWM Dimming

o Analog Dimming

o Mixed Dimming with 25% or 12.5%

Transfer Point

 15000:1 Dimming Ratio during PWM

Dimming when f_PWM≤ 200Hz

 200:1 Dimming Ratio during Analog

Dimming through PWM Dimming Signal

Input

 Excellent EMI Performance, Frequency

Spread Spectrum

 I²C Interface, 3 Selectable IC Addresses

 Phase Shift Function for PWM Dimming

 2.5% Current Matching

 Cycle-by-Cycle Current Limiting

 Disconnect VOUT from VIN

 Optional: LED Current Can Automatically

Decrease at Higher Temperatures

 LED Short/Open, OTP, OCP, and Inductor

Short Protection

 Configurable LED Short Threshold

 Configurable OVP Threshold

 Fault Indicator Signal Output

 Available in a QFN-24 (4mmx4mm)

Package

A low on resistance MOSFET and headroom

voltage are provided to improve efficiency. The

MP3364 has a standard I²C digital interface for

easy use. The switching frequency can be

configured via a resistor, I²C interface, or

external clock.

The MP3364 provides analog, PWM, and mixed

dimming modes with a PWM input. The

dimming mode can be selected via the I²C

interface or the MIX/AD pin. The device also

has a phase shift function to eliminate noise

during PWM dimming.

Robust protections are included to guarantee

safe operation. Protections include over-current

protection (OCP), over-voltage protection

(OVP), over-temperature protection (OTP), LED

short protection, and LED open protection. The

MP3364 can automatically decrease the LED

current at higher temperatures.

The MP3364 is available in a QFN-24

(4mmx4mm) package.

APPLICATIONS

 Tablets

 Notebooks

All MPS parts are lead-free, halogen-free, and adhere to the RoHS

directive. For MPS green status, please visit the MPS website under

Quality Assurance. “MPS”, the MPS logo, and “Simple, Easy Solutions” are

trademarks of Monolithic Power Systems, Inc. or its subsidiaries.

MP3364 Rev. 1.0

4/7/2021

MonolithicPower.com

MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.

12 3 4 5 6 7...25

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与MP3364相关器件

型号	品牌	获取价格	描述	数据表
MP3367	MPS	获取价格	6 路，每路最大电流为 150mA，且具有 15000:1 调光比和 I2C 接口的升压
MP3370	MPS	获取价格	最大输出 38V 并且带有恒流源的单路 LED 驱动
MP3370GN-Z	MPS	获取价格	Display Driver,
MP3371	MPS	获取价格	集成 I2C 接口的 8 通道同步 50V WLED 升压驱动器
MP3372	MPS	获取价格	8 通道同步 50V 升压 WLED 驱动器，带 I2C 接口和相移功能
MP3373	MPS	获取价格	8 路、每路 350mA、WLED 升压控制器，搭载移相和外部灌电流 BJT
MP3373GM	MPS	获取价格	LED Driver,
MP3373GM-C755	MPS	获取价格	LED Driver,
MP3373GY	MPS	获取价格	LED Driver
MP3376	MPS	获取价格	集成 I2C 接口的 8 路同步 WLED 升压驱动器

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