LPW5202-B5F

厂商：
POWER
封装：
描述：
LPW5202-B5F - Power Distribution Switches - Lowpower Semiconductor inc

数据手册：

下载LPW5202-B5F.pdf

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数据手册
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LPW5202-B5F 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-B5F

1. 物料型号： - 型号：LPW5202

2. 器件简介： - LPW5202是一款集成的120mΩ导通电阻的电源开关，适用于自供电和总线供电的通用串行总线（USB）应用。内置充电泵用于驱动N沟道MOSFET，该MOSFET没有寄生体二极管，以消除开关关闭时的反向电流。其低静态电流（19μA）和小尺寸（SOT-23-5封装）特别适合电池供电的便携设备。

3. 引脚分配： - 引脚1和5：Vout（输出引脚） - 引脚2：GND（地） - 引脚3：VIN（输入引脚，连接到电池或电源） - 引脚4：EN（设备使能，高电平有效）

4. 参数特性： - 输入电压范围：2.1V至6V - 输出NMOSFET导通电阻（RDS(ON)）：120mΩ - 静态电流：19μA（在3V输入下） - 关闭电流：1μA - 使能阈值低（VEN(L)）：0.4V - 使能阈值高（VEN(H)）：1.5V - 输入低电流（IEN）：1μA

5. 功能详解： - 120mΩ低导通电阻、高侧N沟道MOSFET保证0.8A连续电流 - 2.1V至6V输入电压、低19μA供电电流 - 软启动功能、内置短路保护、内置热保护 - 符合RoHS标准，无铅（Pb）含量

6. 应用信息： - 电源开关 - USB设备 - 电池充电器电路

7. 封装信息： - 封装类型B5：SOT-23-5

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