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Document overview

  • Manufacturer or author: Provided By ALLDATASHEET.COM(FREE DATASHEET DOWNLOAD SITE)
  • PDF pages: 4

Technical content

Features

ƒ 5V and 3.3V Line Clamping ƒ Near Zero Quiescent Supply Current: 10µA Maximum – Active circuit clamping ƒ Low Capacitance: 5pF (typ.) ƒ High 4kV ESD Protection ƒ Packaging (Pb-free & Green Available): - 6-pin SC70 (C) Benefits ƒ Reduced EMI – Limits high-frequency ring voltage ƒ Minimum Power Consumption ƒ Higher Noise Margin ƒ Minimal Line Loading

Applications

ƒ CPU Termination ƒ Backplane Termination ƒ Termination

Description

The PI7AT04 actively clamps overshoot and undershoot voltages on transmission lines and backplanes. Improperly terminated data lines have reflections that can result in lost data or unreliable system behavior. The PI7AT04 clamps undershoot and overshoot voltages for up to four lines. For other options and packages contact Pericom Marketing. Compared to Schottky diodes, the PI7AT04 uses less power and requires no additional drive power. By avoiding a passive termina- tion/clamp technology, PI7AT04 power consumption is very low at 5V . The PI7AT04 is ideal in applications where characteristic imped- ance varies with system configuration. Changing characteristic impedance is common when memory or function cards are added or removed on a bus. The PI7AT04 does not replace parallel terminator resistors. 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 SOTINYTM Low Voltage, Zero-Delay, Active Transmission Line Clamp Product Pin DescriptionProduct Pin Configuration rebmuNniP emaNn oitpircseD 07CS,nip-6

10 Tn oitanimreTeniL

21 Tn oitanimreTeniL

42 Tn oitanimreTeniL

53 Tn oitanimreTeniL

6V DD egatloVylppuSevitisoP GND VDD 6-Pin C PI7AT04 Functional Block Diagram Control Input VDD

2 PS8588C 08/02/04

1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 PI7AT04 SOTINY™ Low Voltage, Zero-Delay, Active Transmission Line Clamp niPynAnoegatloVCD V5.6 erutarepmeTegarotS C°051otC°56– )sdnoces01,gniredloS(erutarepmeTdaeL C°003 noitamrofnIlamrehT )C°07evobaC°/Wm7.8etared:noitapissiDrewoPsuounitnoCPOSM Wm056 )C°07evobaC°/Wm0.7etared:noitapissiDrewoPsuounitnoC32TOS/07CS Wm055

Electrical Characteristics

VDD = 5V Over Operating Temperature Range, unless otherwise noted. retemaraPl obmySs noitidnoCp meT. niMp yT. xaMs tinU VevobAegatloVlangiSeniL DD 2etoN6 .0 V DNGwoleBegatloVlangiSeniL2 etoN6 .0– ecnaticapaCeniLtupnIC I V=egatloVeniL DD 525 F p tnerruChgiHtupnII HI V ENIL V= DD V, DD V5.5=5 Aµ tnerruCwoLtupnII LI V ENIL 0= V V, DD V5.5=5 egnaRegatloVylppuSV DD 5.45 .5V tnerruCylppuStnecseiuQI DD gnitaolfsenilllA0 2A µ noitcetorPDSE5 103dohteM,388-DTS-LIM4 V k VDD = 3.3V Over Operating Temperature Range, unless otherwise noted. retemaraPl obmySs noitidnoCp meT. niM. pyT. xaMs tinU VevobAegatloVlangiSeniL DD 2etoN6 .0 V DNGwoleBegatloVlangiSeniL2 etoN6 .0– ecnaticapaCeniLtupnIC I V=egatloVeniL DD 525 F p tnerruChgiHtupnII HI V ENIL V= DD V, DD V6.3=3 Aµ tnerruCwoLtupnII LI V ENIL V,V0= DD V6.3=3 egnaRegatloVylppuSV DD 0.36 .3V tnerruCylppuStnecseiuQI DD gnitaolfsenilllA0 2A µ noitcetorPDSE5 103dohteM,388-DTS-LIM4 V k Absolute Maximum Ratings Notes: 1. Capacitance and ESD parameters are guaranteed by design. 2. Maximum line voltage clamped during a transient.

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Application Information

Figure 2. VCX16244 (Vcc = 3.6V) output after driving 3-inch transmission line. Signal capture at end of line Figure 1. Test Diagram Figure 3. VCX16244 (Vcc = 3.6V) output after driving 3-inch transmission line and driving PI7AT04 input. Signal as seen at the input pin. Signal capture when Vcc in NC, Vcc = 3.6V.

4 PS8588C 08/02/04

1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 PI7AT04 SOTINY™ Low Voltage, Zero-Delay, Active Transmission Line Clamp Ordering Code Line Terminations Package Code Package Description Top Marking PI7AT04CX 4 C 6-pin SC70 Z9 PI7AT04CEX 4 C 6-pin SC70 Z9 Packaging Mechanical: 6-Pin SC70 (C) 564 213 Notes: 1) Controlling dimensions in millimeters 2) Ref: JEDEC MO-203AB

Ordering Information

Notes: 1. Thermal Characteristics can be found on the world wide web at www.pericom.com/packaging/ 2. X = Tape and reel Pericom Semiconductor Corporation • 1-800-435-2336 • www.pericom.com