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TPD4S012 数据手册 - TI（德州仪器）
制造商:
TI（德州仪器）
描述:
具有电源钳位的 4 通道 USB ESD 解决方案
Pictures:
3D模型
符号图
焊盘图
引脚图
产品图
页面导航:
引脚图在P3Hot
典型应用电路图在P1P10
原理图在P1P8P10
封装尺寸在P14P16P17
标记信息在P14
封装信息在P13P14P15P16P17
技术参数、封装参数在P4
应用领域在P1P10P20
电气规格在P5
导航目录
TPD4S012数据手册
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V
BUS
D+
D–
ID
GND
PMU/USB
Controller
V
BUS
GND
D+
D–
-
ID
TPD4S012
SLVS928B –MARCH 2009–REVISED AUGUST 2014
www.ti.com
8 Applications and Implementation
8.1 Application Information
The TPD4S012 is a four-channel Transient Voltage Suppressor (TVS) based Electrostatic Discharge (ESD)
protection diode array for USB chargers and USB On-The-Go (OTG) interfaces.
The TPD4S012 provides IEC 61000-4-2 system level ESD Protection featuring 15 V tolerance on the V
BUS
line.
The device is ideal for providing circuit protection for USB charger and OTG applications due to its high-voltage
tolerance at the V
BUS
line and small flow-through package.
8.2 Typical Application
If the ID pin is not used, it can be left floating.
Figure 11. Typical Application Schematic
8.2.1 Design Requirements
For this design example, a single TPD4S012 is used to protect all pins of a micro/mini USB connector.
Given the USB application, the following parameters are known.
DESIGN PARAMETER VALUE
Signal range on D+, D–, and ID 0 V to 5 V
Signal range on V
BUS
0 V to 5 V
Operating Frequency 240 MHz
8.2.2 Detailed Design Procedure
To begin the design process, some parameters must be decided upon; the designer needs to know the following:
• Signal range on all the protected lines
• Operating frequency
8.2.2.1 Signal Range on D+, D-, ID and V
BUS
pins
The TPD4S012 has 3 pins which support 0 to 5.5 V signals, these are suited for the D+, D–, and ID pins. The
V
BUS
pin is suitable for the VBUS line, and has the benefit of being tolerant of voltages up to 16 V
8.2.2.2 Operating Frequency
The 0.8 pF (Typ) of the TPD4S012 support data rates in excess of 480 Mbps.
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