RT9702PB General Description |
RT9702PB/A是低成本单N-MOSFET上壁电源开关 , 适用于自给电及汇流排给电之USB装置 , RT9702PB系列备有charge pump电力以驱动内部MOSFET开关 , 此开关低Rdson 80mΩ符合USB压降规格 , 侦错旗标输出提供USB控制器使用 , 另外还有涌浪电流缓起动 , 过热保护 , 避免开关在重载下损坏 , 过低压保护确保开关能在正常电压下工作 , 极低的25uA静态电流非常适用于以电池为主之移动式产品。 |
RT9702PB Ordering Info |
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RT9702PB Features |
RT9702PB 产品规格: 2V ~ 5.5V 输入电压范围 500mA/1.1A 最大电流输出 25uA静态电流 支持热插拔 UL认证许可 E219878 TUV认证许可 IEC60950-1 : 2005 RoHS认证许可 RT9702PB 产品特性: • 兼容于USB规格 • 低Rdson 80mΩ • 过电流保护 • 1.7V输入过低电压保护 • 过热保护机制 • SOT23-5及TSOT23-5小包装 • 逆向电流制止功能 • Compliant to USB Specifications • Built-In (Typically 80mΩ) N-Channel MOSFET • Output Can Be Forced Higher Than Input (Off-State) • Low Supply Current : ♦ 25μA Typical at Switch On State ♦ 1μA Typical at Switch Off State • Guaranteed 500mA/RT9702PB and 1.1A/RT9702PBA Continuous Load Current • Wide Input Voltage Ranges : 2V to 5.5V • Open-Drain Fault Flag Output • Hot Plug-In Application (Soft-Start) • 1.7V Typical Under Voltage Lockout (UVLO) • Current Limiting Protection • Thermal Shutdown Protection • Reverse Current Flow Blocking (no body diode) • Smallest SOT-23-5 and TSOT-23-5 Packages Minimizes Board Space • UL Approved-E219878 • TUV IEC60950-1 : 2005 Certified • RoHS Compliant and 100% Lead (Pb)-Free |
RT9702PB Application |
• USB汇流排/自给电集线器 • USB外围产品运用 • ACPI电源分配 • 热插拔电源供应系统 • 笔记本电脑及主板 • 电池式产品 • 充电器运用 • USB Bus/Self Powered Hubs • USB Peripherals • ACPI Power Distribution • PC Card Hot Swap • Notebook, Motherboard PCs • Battery-Powered Equipment • Hot-Plug Power Supplies • Battery-Charger Circuits |
RT9702PB Pin Configurations |
(TOP VIEW) |
RT9702PB Typical Applications Circuit |
Note: A low-ESR 150μF aluminum electrolytic or tantalum between VOUT and GND is strongly recommended to meet the330mV maximum droop requirement in the hub VBUS. (see Application Information Section for further details) |