ESD Protection Solutions Consumer and wireless communication
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ESD Protection Solutions Consumer and wireless communication [ www.infineon.com/tvsdiodes ]

2 3 In today’s electronics, being faster, smaller and smarter creates profitability by enabling new and better applications. The race to pack even more high-speed functions in a smaller space accelerates miniaturization roadmaps. However, the downscale of semiconductor chips together with the increase of doping levels results in a dramatic reduction of the thin gate oxide layer and the width of the pn-junction in semiconductor chips. This, in combination with greater circuit population, increases the susceptibility of the semiconductor chip to ESD. The subsequent failures of the electronic...

Bes t in Market Solution for USB 2.0, HDMI 1.3, DisplayPort, Ethernet, S-ATA and many more The ESD5V3 and ESD3V3 series are specially designed for ESD and transient protection of the latest generation of high-speed interfaces with baud rates up to 8 GBd and beyond. The core features of these products are their ultralow parasitic capacitance combined with low clamping voltage and fast response time. This, in combination with dedicated package options, make these parts an ideal choice for high-speed transmission lines with the most stringent performance requirements. Features and Benefits n...

6 7 Typical Applicati ons Application in FireWire interfaces (IEEE 1394a-2000 and IEEE 1394b-2002). 1 2 3 4 5 6 7 8 9 8...30 V Optional for transmitter Required for beta-only receiver ESD5V3U4U 1 2 3 4 FireWire controller (IEEE 1394a-2000) Port A Port B 4-pin socket TPB* TPB TPA* TPA FireWire controller (IEEE 1394b-2002) Port B Port A 9-pin beta/bilingual socket TPB* TPB TPA* TPA TPA(R) VG SC (N.C.) VP TPB(R) ESD5V3U4U Application in USB 2.0: type “A” or “B” receptacle. 1 2 3 4 1 2 3 4 DM1 DP1 ESD5V3U1U USB host/device USB singlepin- type receptacle ESD5V3U2U USB host/device USB dualpin-...

8 9 Typical Applicati ons Application in Audio jack. Two audio lines can be simultaneously protected with one dual-channel TVS diode. BGF200 C3 A2 C1 B1 A3 1 ìF CCO CLP CLP LLP LLP CCO Audio jack ESD8V0L2B Microphone amplifier Audio amplifier Microphone bias voltage Application in keypad. If the ESD problem is localized on a certain number of lines in a given application, the miniature TVS in TSSLP offers great design flexibility. * 7 4 1 0 8 5 2 # 9 6 3 R1 R2 R3 C1 C2 C3 C4 Keypad ESD8V0R1B-02LS Diode Configurati ons 1 line, pin 3 non- connected, bidirectional for voltage level up to ±22...

10 11 RF antenna TVS diodes Optimal ESD protection without sacrificing RF signal quality The ESDxPyRFz family of transient voltage suppressor diodes from Infineon overcomes the ESD (electrostatic discharge) problem in RF antenna and high-speed data transmission lines by providing outstanding protection in a very small form factor. For any antenna system, electrostatic discharges are a continuous threat to device reliability. These antennas are often exposed to direct ESD events as they are externally connected or installed in ESD-sensitive locations. For these reasons it is mandatory for...

12 13 1 protected signal line, superimposed DC voltage up to ±VF (diode forward voltage) Line to ground capacitance 0.4 pF @ 1 GHz ESD0P4RFL ESD0P2RF-02LS ESD0P2RF-02LRH 1 protected signal line, superimposed DC voltage up to +Vcc (voltage supply) Line to ground capacitance 0.4 pF @ 1 GHz +Vcc Protected line, signal level up to ±5.3 V (bidirectional) The protection diode should be placed very close to the location where the ESD or other transients can occur to keep loops and inductances as small as possible. Pin 1 (or pin 2) should be connected directly to a ground plane on the board. 2 1 RF...

14 15 INFINEON general-purpose TVS diodes are designed to handle high-peak transient currents far beyond market standards and to remain unchanged after repetitive strikes. These devices are especially well suited for ESD and transient protection of low-speed data and power lines in applications with a maximum operating voltage of 5.3 V. Features and benefits n ESD (electrostatic discharge), EFT (electric fast transient) and surge protection exceeding market standards. n Excellent high current absorption capability. n Uni- or bidirectional operation possible. n Very low clamping voltage. n...

Typical Applicati ons The general-purpose diode series is recommended for protection of sensitive lines that have low data rates such as: n Power inputs line n Keypad/keyboard interfaces n Microphone and speaker interfaces n Headset n Flash card Application in a Li-ion polymer battery. ESD5V0S2U-06 Power management IC BAT TS Li-Ion/polymer cell + T - Application in a smart battery. ESD5V0S4US BAT TS SMB host controller SMBCLK SMBDAT Smart battery + C D T - MCU BAT TS VREF5 4 lines, bidirectional Protected signal line Pin 2 should be connected directly to a ground plane on the board. Pin 3...

18 19 n A typical polymer device breaks down only after a high trigger voltage is reached. Designers should consider this aspect because the overall energy delivered to the protected equipment after clamping can be above its tolerable level and destroy it. Even in the cases where ESD events are absorbed by the polymer, it takes a long time before the polymer recovers to face a new ESD strike again. Polymers show aging due to degradation effects that can be triggered on multiple ESD strikes. n The evaluated varistors reflect the typical trade-off between low capacitance and low clamping...

Flatter, thinner, smaller Stay one step ahead with Infineon TVS packages Infineon TVS diodes support our customers’ roadmaps with package solutions that boost both space and cost savings, resulting in the following benefits: n Low parasitic inductance. n Flexibility of single and array solutions. n Ultralow height and size of thin (super) small leadless package (TS(S)LP) result in dramatic reduction of footprint and height requirements. n Smallest and flattest size leaded packages (TSFP) for easy optical control on soldering. n Packages suited for all variations in pick-and-place assembly...