LPW5202

厂商：
POWER
封装：
描述：
LPW5202 - Power Distribution Switches - Lowpower Semiconductor inc

数据手册：

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数据手册
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LPW5202 数据手册

Preliminary Datasheet LPW5202 Power Distribution Switches General Description The LPW5202 is an integrated 120mΩ power switch for self-powered and bus-powered Universal Series Bus (USB) applications. A built-in charge pump is used to drive the N-Channel MOSFET that is free of parasitic body diode to eliminate any reversed current flow across the switch when it is powered off. Its low quiescent current (19µA) and small package (SOT-23-5) is particularly suitable in battery-powered portable equipment. Several protection functions include soft start to limit inrush current during plug-in, current limiting at 1.5A to meet USB power requirement, and thermal shutdown to protect damage under over current conditions. Features 120m Low Rdson,High-side NMOSFET Guaranteed 0.8A Continuous Current 2.1V to 6V Input Voltage Low 19uASupply Current Soft Start Function Built-In Short-Circuit Protection Built-in Thermal Protection RoHS Compliant and 100% Lead (Pb)-Free Typical Application Circuit Order Information LPW5202 □□ □ F: Pb-Free Package Type B5: SOT23-5 Marking Information Please see website. Applications Power Switch USB Device Battery Charger Circuits LPW5202 – Ver. 1.0 Datasheet OCT.-2006 Page 1 of 8 Preliminary Datasheet Functional Pin Description P a c k a g e Ty p e Pin Configurations LPW5202 SOT23-5 PIN NAME DESCRIPTION 1,5 2 3 4 Vout GND VIN EN Output pin Ground Charge pump input, connect to battery or supply Device enable (active high). Function Block Diagram LPW5202 – Ver. 1.0 Datasheet OCT.-2006 Page 2 of 8 Preliminary Datasheet Absolute Maximum Ratings LPW5202 Input Voltage to GND (VINA, VINB) ---------------------------------------------------------------------------- 7V EN Voltage ---------------------------------------------------------------------------------------------0.3V to 7V Operating Junction Temperature Range (TJ) ----------------------------------------------------20℃ to 100℃ Maximum Soldering Temperature (at leads, 1 0sec) ----------------------------------------------------- 300℃ HBM(Human Body Mode)-------------------------------------------------------------------------------------- 8KV Thermal Information Maximum Power Dissipation (PD) ------------------------------------------------------------------------ 0.25W Thermal Resistance (JA) ---------------------------------------------------------------------------------- 250℃/W Electrical Characteristics (Over recommended operating conditions unless specified otherwise) VINA =3.6V,EN=High, TA=25℃ ) Symbol VIN RDS(ON) Parameter Input Voltage Output NMOSFET RDS(ON) Conditions LPW520 Min. Typ. Max. 2.1 6 120 19 28 1 0.4 1.5 Unit V m uA µA V V IQ ISHDN VEN(L) VEN(H) IEN Quiescent Current Shutdown Current Enable Threshold Low Enable Threshold High Input Low Current Vin=3V ENB = GND VINB = VENB = 5.5V -1 1 µA LPW5202 – Ver. 1.0 Datasheet OCT.-2006 Page 3 of 8 Preliminary Datasheet Typical Operating Characteristics LPW5202 LPW5202 – Ver. 1.0 Datasheet OCT.-2006 Page 4 of 8 Preliminary Datasheet LPW5202 LPW5202 – Ver. 1.0 Datasheet OCT.-2006 Page 5 of 8 Preliminary Datasheet LPW5202 LPW5202 – Ver. 1.0 Datasheet OCT.-2006 Page 6 of 8 Preliminary Datasheet LPW5202 LPW5202 – Ver. 1.0 Datasheet OCT.-2006 Page 7 of 8 Preliminary Datasheet Packaging Information LPW5202 LPW5202 – Ver. 1.0 Datasheet OCT.-2006 Page 8 of 8

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LPW5202

1. 物料型号： - 型号：LPW5202

2. 器件简介： - LPW5202是一款集成的120mΩNMOSFET电源开关，适用于自供电和总线供电的USB应用。 - 内置充电泵驱动N沟道MOSFET，该MOSFET没有寄生体二极管，可以消除关闭时的反向电流。 - 低静态电流（19μA）和小尺寸（SOT-23-5封装）特别适用于电池供电的便携设备。

3. 引脚分配： - SOT-23-5封装的引脚配置如下： - 1, 5脚：Vout 输出引脚 - 2脚：GND 接地 - 3脚：VIN 输入电压 - 4脚：EN 设备使能（高电平有效）

4. 参数特性： - 120mΩ低导通电阻，高侧NMOSFET保证连续电流0.8A - 输入电压2.1V至6V，静态电流低至19μA - 软启动功能，内置短路保护和热保护，符合RoHS标准，无铅

5. 功能详解： - 包括软启动以限制插入时的涌入电流，1.5A的电流限制满足USB电源要求，热关断以保护过流损坏。

6. 应用信息： - 适用于电源开关和USB设备，电池充电器电路。

7. 封装信息： - 封装类型为SOT-23-5，具体尺寸如下： - A: 0.889mm至1.295mm（0.035至0.051英寸） - B: 1.397mm至1.803mm（0.055至0.071英寸） - C: 2.591mm至2.997mm（0.102至0.118英寸） - D: 2.692mm至3.099mm（0.106至0.122英寸） - 其他尺寸参数也在文档中提供。

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