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TPD1E10B06QDPYRQ1 Datasheet(PDF) 10 Page - Texas Instruments |
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TPD1E10B06QDPYRQ1 Datasheet(HTML) 10 Page - Texas Instruments |
10 / 18 page GND Speaker Connector (Source of ESD) 1 1 2 2 L Audio IN Audio Amplifier Class AB (ESD Sensitive) R Audio IN L R Audio Amplifier Class AB (ESD Sensitive) GND GND L Audio R Audio Copyright © 2016, Texas Instruments Incorporated 10 TPD1E10B06-Q1 SLVSDN7A – AUGUST 2016 – REVISED AUGUST 2016 www.ti.com Product Folder Links: TPD1E10B06-Q1 Submit Documentation Feedback Copyright © 2016, Texas Instruments Incorporated 8 Application and Implementation NOTE Information in the following applications sections is not part of the TI component specification, and TI does not warrant its accuracy or completeness. TI’s customers are responsible for determining suitability of components for their purposes. Customers should validate and test their design implementation to confirm system functionality. 8.1 Application Information When a system contains a human interface connector, the system becomes vulnerable to large system-level ESD strikes that standard ICs cannot survive. TVS ESD protection diodes are typically used to suppress ESD at these connectors. The TPD1E10B06-Q1 is a single-channel ESD protection device containing back-to-back TVS diodes, which is typically used to provide a path to ground for dissipating ESD events on bidirectional signal lines between a human interface connector and a system. As the current from ESD passes through the device, only a small voltage drop is present across the diode structure. This is the voltage presented to the protected IC. The low RDYN of the triggered TVS holds this voltage, VCLAMP, to a tolerable level to the protected IC. 8.2 Typical Application Figure 10. Typical Application Schematic 8.2.1 Design Requirements For this design example, the two TPD1E10B06-Q1s are used to protect left and right audio channels. For this audio application, the system parameters shown in Table 1 are known. Table 1. Design Parameters DESIGN PARAMETER VALUE Audio amplifier class AB Audio signal voltage range –3 V to 3 V Audio frequency content 20 Hz to 20 kHz Required IEC 61000-4-2 ESD protection ±20-kV contact, ±25-kV air-gap 8.2.2 Detailed Design Procedure To begin the design process, some parameters must be decided upon; the designer must make sure: • Voltage range on the protected line must not exceed the reverse standoff voltage of the TVS diode(s) (VRWM) • Operating frequency is supported by the I/O capacitance CIO of the TVS diode |
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