90

080216

TransFeed Automotive Series

AVX Multilayer Ceramic Transient Voltage Suppressors

TVS Protection and EMI Attenuation in a Single Chip

GENERAL DESCRIPTION

AVX has combined the best electrical characteristics of its

TransGuard® Transient Voltage Suppressors (TVS) and its

Feedthru Capacitors into a single chip for state-of-the-art

overvoltage circuit protection and EMI reduction over a

broad range of frequencies. This unique combination of

multilayer ceramic construction in a feedthru configuration

gives the circuit designer a single 0805 chip that responds

to transient events faster than any TVS device on the mar-

ket today, and provides significant EMI attenuation when in

the off-state.

Automotive TransFeeds are designed for automotive appli-

cations and are AEC-Q 200 qualified.

The reduction in parallel inductance, typical of the feedthru

chip construction when compared to the construction of

standard TVS or ceramic capacitor chips, gives the

TransFeed product two very important electrical advan-

tages: (1) faster “turn-on” time. Calculated response times

of <200 pSec are not unusual with this device, and mea-

sured response times range from 200 – 250 pSec. The

TransFeed “turn-on” characteristic is less than half that of

an equivalent TransGuard® part — and TransGuards®

clamp transient voltages faster than any other bipolar TVS

solution such as diodes; (2) the second electrical advantage

of lower parallel inductance, coupled with optimal series

inductance, is the enhanced attenuation characteristics of

the TransFeed product. Not only is there significantly

greater attenuation at a higher self-resonance frequency,

but the roll-off characteristic becomes much flatter, result-

ing in EMI filtering over a much broader frequency spec-

trum. Typical applications include filtering/protection on

Microcontroller I/O Lines, Interface I/O Lines, Power Line

Conditioning and Power Regulation.

Schematic Diagram

Electrical Model

IN

OUT

IN

C

OUT

TYPICAL APPLICATIONS

• Drive by Wire

• Dimming Mirror Circuit

• Filtering/protection on Microcontroller I/O lines

• Filtering/protection on Interface I/O lines

• Power Line Conditioning

• Power Regulation

• LCD Dashboard driver

Where designers are concerned with both tran-

sient voltage protection and EMI attenuation,

either due to the electrical performance of their

circuits or due to required compliance to specif-

ic EMC regulations, the TransFeed product is an

ideal choice.

GENERAL

CHARACTERISTICS

• Operting Teperature: -55°C to +125°C

• Working Voltage: 5.6Vdc - 26Vdc

• Case Size: 0805

• Energy Rating: 0.05 - 0.3J

• Current: 20 - 120A

• Max Feedthru Current: 0.5 - 1A

FEATURES

• Bi-directional TVS

• Narrow band, high

attenuation filter

• EMI Filtering over broader

frequency range

• Fastest Response Time to

ESD Strikes

• AEC-Q 200 Qualified