深圳市烨弘轩电子有限公司

Texas Instruments TPD2S703QDGSRQ1 USB ESD保护IC是用于汽车高速接口（如USB 2.0）的双通道数据线路电池短路、VBUS短路和IEC61000-4-2 ESD保护器件。TPD2S703QDGSRQ1 包含两个数据线路nFET开关，通过提供同类带宽确保安全数据通信，实现信号衰减。与此同时保护内部系统电路免受VD+和VD-引脚的任何过电压状态的影响。在这些引脚上，该器件可以处理高达直流18V的过电压保护。该功能提供充分保护，以便将数据线路短接到电池以及USB VBUS导轨。过电压保护电路提供业界可靠的电池短路隔离，在200ns内关闭数据开关。该保护还保护上游电路免受有害电压和电流尖峰的影响。

FEATURES

符合AEC-Q100标准

TPD2S703QDGSRQ1 工作温度范围：-40°C至+125°C

VD+、VD–上的电池短路（高达18V）和VBUS短路保护

ESD性能VD+、VD

±8kV接触放电（IEC 61000-4-2和ISO 10605 330pF，330Ω）

±15kV气隙放电（IEC 61000-4-2和ISO 10605 330pF，330Ω）

高速数据开关（1GHz带宽）

只需5V电源电压

可调节OVP阈值

快速过压响应时间（典型值200ns）

热关断特性

集成输入使能和故障输出信号

直通路由可保证数据完整性

10引脚VSSOP封装 (3mm×3mm)

10引脚WSON封装 (2.5mm×2.5mm)

TPD2S703QDGSRQ1应用

终端设备

音响主机

后座娱乐系统

远程信息处理

USB集线器

导航模块

媒体接口

接口

USB 2.0

USB 3.0

The TPD2S703-Q1 is a 2-Channel Data Line Short-to-Battery, Short-to-VBUS, and IEC61000-4-2 ESD protection device for automotive high-speed interfaces like USB 2.0. The TPD2S703-Q1 contains two data line nFET switches which ensure safe data communication by providing best in class bandwidth for minimal signal degradation while simultaneously protecting the internal system circuits from any overvoltage conditions at the VD+ and VD– pins. On these pins, this device can handle overvoltage protection up to 18-V DC. This provides sufficient protection for shorting the data lines to the car battery as well as the USB VBUS rail. The overvoltage protection circuit provides the most reliable short-to-battery isolation in the industry, shutting off the data switches in 200 ns and protecting the upstream circuitry from harmful voltage and current spikes.

Additionally, the TPD2S703-Q1 only requires a single power supply of 5 V in order to optimize power tree size and cost. The OVP threshold and clamping circuit can be adjusted by a resistor divider network to provide a simple, cost effective way to optimize system protection for any transceiver. The TPD2S703-Q1 also includes a FLT pin which provides an indication when the device sees an overvoltage condition and automatically resets when the overvoltage condition is removed.

The TPD2S703-Q1 also integrates system level IEC 61000-4-2 and ISO 10605 ESD clamps on the VD+ and VD– pins, thus eliminating the need for external high voltage, low capacitance TVS clamp circuits in the application.