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MICRONE MEL7135PG-N MEL7135PG
Configuration
1 options
Configuration
Date code within 2 years
Available for RFQ
Technical data
Product details
18
specifications
Core information
- Product name
- MICRONE MEL7135PG-N
- Type
- MICRONE
- Minimum package
- 1000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- MICRONE
- Electronic Component
- MEL7135PG-N
- Electronic Component
- 1
- Package
- SOT-89
- Electronic Component
- LEDDriver
- Electronic Component
- 0.195g
- Electronic Component
- 1
- Channel Count
- 1
- Electronic Component
- BM0225828465
- Operating Temperature
- 40℃~+85℃
- Output Current
- 400mA
- Operating Voltage(DC)
- 2.7V~6V
- Electronic Component
- Electronic Component
- Electronic Component
- 1000
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
MEL7135PG-N 产品概述
一、产品简介
MEL7135PG-N 是南京微盟（MICRONE）推出的一款单通道线性恒流 LED 驱动芯片，封装为 SOT-89。器件工作电压范围宽（DC 2.7V ~ 6V），恒流输出最高可达 400mA，工作环境温度为 -40℃ ~ +85℃，适合对尺寸和成本有要求的高亮 LED 驱动场合。该器件以结构简单、外围元件少、可靠性高为主要特点，便于在手电、照明模组、指示灯和背光等应用中快速集成。
二、主要特性
- 工作电压：DC 2.7V ~ 6V，适配常见电池和小型电源。
- 通道数：单通道（1 channel），面向单颗大功率 LED 或 LED 串。
- 输出电流：最大 400mA 恒流输出，内置稳定电流源。
- 工作温度范围：-40℃ 至 +85℃，适用于工业级环境。
- 封装：SOT-89，便于小尺寸 PCB 设计和量产贴片工艺。
- 外围简单：通常只需输入旁路电容及必要的布局散热即可完成设计。
三、热管理与功耗考虑
MEL7135PG-N 为线性恒流器件，器件功耗等于 (VIN - VLED) × ILED。在高电压差与高电流工作时，芯片会产生较大热量，应重点考虑散热设计：
- 使用足够的 PCB 铜箔作为散热片（增加顶层或底层铜铺面积并连通）。
- SOT-89 封装热阻相对较高，必要时在 PCB 上配置散热通孔或搭配散热片。
- 设计时应保持工作结温在安全范围内，按照最大结温和环境温度对输出电流进行适当降额。
四、典型应用电路与使用要点
典型连接为：VIN（2.7V6V）→ MEL7135PG-N → LED（负载）→ GND，输入端加 0.1µF1µF 的去耦电容可抑制供电瞬态。使用注意事项：
- 由于为线性驱动，尽量减小 VIN 与 LED 正向压降差，以降低器件功耗。
- 若需在更高电压下驱动多个 LED，应采用降压型恒流源以提高效率。
- 确认 LED 的容许电流与芯片 400mA 匹配，避免超载导致寿命下降。
- 检查 PCB 布局，避免热源靠近敏感元件，保证散热路径顺畅。
五、典型应用场景
- 手电筒、小型便携式照明模组
- 指示灯、高亮度信号灯
- 小型景观灯、装饰照明
- 单通道 LED 背光或点光源驱动
六、封装与采购信息
- 封装形式：SOT-89，适合自动化贴装与小尺寸设计。
- 推荐按生产批次检验电气参数和热性能。
- 订购信息请参照制造商 MICRONE（南京微盟）提供的 MEL7135PG-N 数据手册，确认封装和出货规格。
总体而言，MEL7135PG-N 是一款结构简单、易于集成的单通道高电流线性 LED 驱动，适合对成本和体积敏感且输入电压较接近 LED 正向压降的应用场景。在设计时应重点考虑器件的热耗散和功率损耗，以确保长期可靠工作。
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