? 1998 semtech corp. 652 mitchell road newbury park ca 91320 precision shunt voltage reference sc4040 preliminary - april 13, 1998 1 features the sc4040 is a two terminal precision voltage reference with thermal stability guaranteed over temperature. the sc4040 has a typical dynamic output impedance of 0.25 ?. active output circuitry provides a very sharp turn on characteristic - the minimum operating current is 60a, with a maximum of 20ma. available with five voltage tolerances (0.1%, 0.2%, 0.5%, 1.0% and 2.0%) and three package outlines (sot-23, so-8 and to-92), this part allows the designer the opportunity to select the optimum combination of cost and performance for their application. applications ? trimmed bandgap design (0.2%) ? wide operating current range 60a to 20ma ? low dynamic impedance (0.25 ? ) ? available in sot-23, to-92 and so-8 ? cellular telephones ? portable computers ? instrumentation ? automotive block diagram symbol diagram pin configurations sot-23-3 lead (top view) so-8 lead (top view) to-92 (top view) cathode anode cathode anode description tel:805-498-2111 fax:805-498-3804 web:http:// www.semtech.com
? 1998 semtech corp. 652 mitchell road newbury park ca 91320 precision shunt voltage reference sc4040 preliminary - april 13, 1998 2 parameter symbol maximum units reverse current 60 a to 20 ma operating temperature range t a -40 to +85 c operating junction temperature range t j -40 to +150 c storage temperature range t stg -65 to +150 c lead temperature (soldering) 10 seconds t lead 260 c esd rating esd 2 kv absolute maximum ratings package tolerance t/r quantity 0.1% 0.2% 0.5% 1.0% 2.0% sot-23-3l (1) sc4040ask sc4040bsk sc4040csk sc4040dsk sc4040esk 3k so-8 (1) sc4040as sc4040bs sc4040cs sc4040ds sc4040es 2.5k to-92 (1)(2) sc4040az sc4040bz sc4040cz sc4040dz sc4040ez tr=3k, ta=2k notes: (1) add suffix ?tr? for tape & reel. (2) add suffix ?ta? for tape ammo. ordering information
? 1998 semtech corp. 652 mitchell road newbury park ca 91320 precision shunt voltage reference sc4040 preliminary - april 13, 1998 3 electrical characteristics t a = 25c unless otherwise specified. sc4040a (0.1%) sc4040b (0.2%) parameter symbol condition min typ max min typ max units reverse breakdown volt- age v z i z = 100a t a = 25c 2.4975 2.5000 2.5025 2.495 2.500 2.505 v t a = -40 to +85c 2.481 2.500 2.519 2.479 2.500 2.521 v minimum operating cur- rent i z(min) 60 80 60 80 a reverse breakdown volt- age temperature coeffi- cient i z = 10ma i z = 1ma i z = 100a t a = -40 to +85c 100 100 ppm/c ratio of change in v z to change in i z i z(min) < i z < 1ma t a = 25c 0.8 0.8 mv t a = -40 to +85c 1.0 1.0 mv 1ma < i z < 12ma t a = 25c 6.0 6.0 mv t a = -40 to +85c 8.0 8.0 mv reverse dynamic impedance z r i z = 1ma, f = 120 hz, i ac = 0.1 i z 0.25 0.8 0.25 0.8 ? wideband noise (rms) e n i z = 100a 10hz < f < 10khz 35 35 v long term stability of re- verse breakdown voltage t = 1000 hours t = 25c 0.1c i z = 100a 120 120 ppm t v z ? ? z z i v ? ? z v ? t a = 25c unless otherwise specified. sc4040c (0.5%) sc4040d (1.0%) parameter symbol condition min typ max min typ max units reverse breakdown volt- age v z i z = 100a t a = 25c 2.488 2.500 2.512 2.475 2.500 2.525 v t a = -40 to +85c 2.471 2.500 2.529 2.451 2.500 2.549 v minimum operating current i z(min) 60 80 60 80 a reverse breakdown volt- age temperature coeffi- cient i z = 10ma i z = 1ma i z = 100a t a = -40 to +85c 100 150 ppm/c ratio of change in v z to change in i z i z(min) < i z < 1ma t a = 25c 0.8 1.0 mv t a = -40 to +85c 1.0 1.2 mv 1ma < i z < 12ma t a = 25c 6.0 8.0 mv t a = -40 to +85c 8.0 10.0 mv reverse dynamic impedance z r i z = 1ma, f = 120 hz, i ac = 0.1 i z 0.25 0.9 0.25 1.1 ? wideband noise (rms) e n i z = 100a 10hz < f < 10khz 20 35 v long term stability of re- verse breakdown voltage t = 1000 hours t = 25c 0.1c i z = 100a 120 120 ppm t v z ? ? z z i v ? ? z v ?
? 1998 semtech corp. 652 mitchell road newbury park ca 91320 precision shunt voltage reference sc4040 preliminary - april 13, 1998 4 electrical characteristics t a = 25c unless otherwise specified. sc4040e (2.0%) parameter symbol condition min typ max units reverse breakdown voltage v z i z = 100a t a = 25c 2.450 2.500 2.550 v t a = -40 to +85c 2.426 2.500 2.574 v minimum operating current i z(min) 60 80 a reverse breakdown voltage temperature coefficient i z = 10ma i z = 1ma i z = 100a t a = -40 to +85c 150 ppm/c ratio of change in v z to change in i z i z(min) < i z < 1ma t a = 25c 1.0 mv t a = -40 to +85c 1.2 mv 1ma < i z < 12ma t a = 25c 8.0 mv t a = -40 to +85c 10.0 mv reverse dynamic impedance z r i z = 1ma, f = 120 hz, i ac = 0.1 i z 0.25 1.1 ? wideband noise (rms) e n i z = 100a 10hz < f < 10khz 35 v long term stability of reverse breakdown voltage t = 1000 hours t = 25c 0.1c i z = 100a 120 ppm t v z ? ? z z i v ? ? z v ?
? 1998 semtech corp. 652 mitchell road newbury park ca 91320 precision shunt voltage reference sc4040 preliminary - april 13, 1998 5 land pattern sot-23 note 1 : grid placement courtyard is 8 x 8 elements (4mm x 4mm) in accordance with the international grid detailed in iec publication 97. outline drawing sot-23
? 1998 semtech corp. 652 mitchell road newbury park ca 91320 precision shunt voltage reference sc4040 preliminary - april 13, 1998 6 outline drawing to-92 outline drawing so-8 land pattern so-8
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