TVS305 MICROSEMI | Alldatasheet

Document overview

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

Technical content

VOLTAGE SUPPRESSORS TySSoBTvS=28 FEATURES DESCRIPTION ‘© Up to 500W for ImS Pulse Power Microsemi's TVS series of transient voltage Capability suppressors feature uside passivated zener © Clamping Time in Picoseconds type chips with fulHfaced metallurgical bonds ‘© Direct Applicability for all popular on both sides to achieve high surge capability Microprocessors and IC families and negligible electrical degradation under © Metallurgically bonded assembly system repeated surge conditions. The series is to assure long term reliability especially useful in protecting microprocessor, ® Miniature glass encased hermetically MOS, CMOS, TTL, ECL,I’L and linear integrated sealed package circuits from spurious transient disturbances. ABSOLUTE MAXIMUM RATINGS @ 25°C Peak Pulse Current secceccsueceeeeeeeeeseusseeeeeeeenteneesen, ae eceeeee SOO TADIG ec ceccccecceestteeeseereeeees S@@ Table Storage and Operating Temperature eeccecteeseeeteeeeeee O50 +175 cee. . —65to +175°C ‘TVS305 Series BODYA r 3.9mm 8s MAX —— ad —= = i Lox s00 ‘Samm Sor ase Tvn ‘THESE DEVICES ALSO AVAILABLE IN SURFACE MOUNT PACKAGE. SEE SECTION 10 MECHANICAL SPECIFICATIONS TVS505 Series BODY B 4.4mm 145 MAX. rs [ ee J ca | (040 4.001 ‘THESE DEVICES ALSO AVAILABLE IN SURFACE MOUNT PACKAGE. SEE SECTION 10 a - Microsemi Corp. Watertown 2/80 417 pers

ELECTRICAL SPECIFICATIONS @ 25°C ‘TVS 505-TVS 528 Max. stana min max. wan. an. ox clamping “of Breakdown | Leakage Peak clamping | Clamping Voltage Voltage Voltage Curent | Pulse Current® Voltage" Voltages ‘ee Vi BV sein @ AMA OY lee Ve @ lop Ve@ 1A sa S108 es a | v ee es ee Tvs205 50 60 30 7 87 = Tvs310 100 nt | 2 89 168 = Tvs3i2 2 138 1 1 210 = TVS315 15 167 1 39 2 = TVS318 18 204 1 49 31 | - Tvs324 2 284 1 36 a = Tvs328 2 307 1 32 46 ~ TVS348 8 5¢ 1 v7 8 = Tvs360 60 7 | 4 1a 0) TVS410 100 ul 1 1 160 - TVS420 200 234 1 42 360 - TVS430 300 342 1 2 520 = TVS505 50 60 300 337 93 74 = | 79 Tvs510 109 ui 5 303 165 132 = | wa Tvssi2 120 138 5 238 210 165 = | 185 j TVS615 150 167 5 198 252 197 = | zz Tvssi8 180 204 5 163 305 238 0 | — | TVss24 24.9 284 5 19 420 324 370 | — | TWS528 280 307 5 107 465 359 ao | — : *For Im pulse: see Figure L H

1 Pulse Waveform 2 Derating Curve i

; __ 100 / 3 \\ if | = | E WHERE, DECAYS TO 50% OF hy é ¥ t « 100 go 3 i 2 3 i) = ast XI ooo t TIME (ms) TEMPERATURE (°C)

500 PLEASANT STREET « WATERTOWN, MA 2172

FEL tein Sas 040g «PAK oir 924 1238 418 NED MUSA

1VS309-TVS430_ TVS505-TVS528 5. Peak Pulse Power va. Pulse Duration 4. Peak Pulse Power ve. Pules Duration 10 100 aN \\ EXPONENTIAL Pulse PULSE an r NI = 10 s NJ § g 2 é Pan N Z. N Us Tas TOS TORS ms TOMS 4S TaS 10,5 10048 Im 10m PULSETINE) Pulse ME) 5. Capacitance vs. Stand-Off Voltage 6. Clamping Voltage vs. Pulse Current 10000 eR 100 oo aE ER EEE See FIGURE 1 For waveraril =e ae — ee trey EE —o ees EHH ea A s 3 ee eee: a ES On 2 ee PT TT Nitessuren | TTT] seo |

8 Te zero Bias z ommend

€ \\| é 2 =o £ IN j i aasaeee! ine coe VA NT 2 of esses ees 2 ESS err | Faeasunen @ 7eeQerast— tH 2 SSS e HASSE SEH 33 rth oP NTIS PT ss 7 a [OT TTTNT NAST Say nn MONE alll TT TL t T = nil 1 0 100 y ~ Pe V, — STAND-OFF VOLTAGE — (Vv) 2 5 10 20 ‘e100 1, = PULSE CURRENT (A)

580 PLEASANT STREET - WATERTOWN, MA 02172

FEL tein 826-048 «FAK (el) 9281238 419 ranreD NUSA

‘TV€305-TYS490 TVS505-TVS528 CHOOSING AND SPECIFYING THE PROPER IVS. The following terms are generally used in specitying Iransient Voltage Suppressors (TVS): 1, Stand-off Voltage (Vs) is the highest reverse voltage at which the TVS will be non-conducting. 2. Minimum Breakdown Voltage (BV min) is the reverse voltage at which the TVS conducts 1 milli-amp. This is the point where the TVS begins to limit the transient. 3. Maximum Clamping voltage (Vc max) Is the maximum voltage the TVS will allow during a transient “spike.” Figure 7 graphically shows all tnree terms. z S B Ey é ima=-|----—— + v Ve BV Vo Figure 7 The three most important factors in choosing the appropriate TVS for an application in their order of importance are: 1. Pulse power (P)) — Choose the TVS series that will handle the Transient Pulse Power. Transient Pulse Power is equal to the clamping voltage (Vc) times the peak pulse current (in). The pulse duration vs. pulse power graph on the TVS data sheet can then be used to determine the maximum allowable pulse duration. (Figure 3 or 4). 2. Standoff voltage (Va) — From the TVS series selected, choose the device with the stand off voltage equal to or greater than the normal circuit operating voltage. 3. Maximum Clamping Voltage (Veusax) — Determine the clamping voltage of the device chosen for the | transient given and be sure it is below the voltage that might damage any components.

580 PLEASANT STREET « WATERTOWN, MA02172

TEL. (617) 926-0404 + FAX (617) 924-1235 420 PRINTEDINUSA