View AP432YL-U_3753418.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

ap432/ap432a adjustable precision shunt regulator ap432/ap432a rev. 10 1 of 14 may 2008 www.diodes.com ? diodes incorporated general description features the ap432/432a are 3-terminal adjustable precision shunt regulators with guaranteed stable temperature over the applicable extended commercial temperature range. the output voltage may be set at any level greater than 1.24\/ (v ref ) up to 20v merely by selecting two external resistors that act as a voltage divider network. these devices have a typical output impedance of 0.2 ? . active output circuitry provides very sharp turn-on characteristics, making thes e devices excellent improved replacements for zener diodes in many applications. ? precision reference voltage ap432 : 1.24v 1% ap432a : 1.24v 0.5% ? sink current capability: 200ma ? minimum cathode current for regulation: 150 a ? equivalent full-range temp coefficient: 30 ppm/ o c ? fast turn-on response ? low dynamic output impedance: 0.2 ? ? programmable output voltage to 20v the precise +/- 1% reference voltage tolerance of the ap432/432a make it possible in many applications to avoid the use of a variable resistor, consequently saving cost and eliminating drift and reliability problems associated with it. ? low output noise ? packages: sot23, sot23r, sot25, sot89-3l, sc59, sc59r, sop-8l and to92-3l ? lead free packages: sot25, sot89-3l, sc59, sc59r and to92-3l ? sop-8l, sot23 and sot23r: available in ?green? molding compound (no br, sb) (note 2) ? lead free finish/ rohs compliant (note 3) ordering information ap432 x xx x x reference voltage package tolerance blank : +/- 1% a : +/- 0.5% packing blank : sop-8l y : sot89-3l v : to92-3l sa : sot23 w : sc59 r : sc59r q : sot25 lead free l : lead free (note 1) g : green (note 2) -u : tube -7/ 13 : tape & reel -a : ammo box (note 4) sr : sot23r 7? tape and reel 13? tape and reel ammo box device (note 5) package code packaging (note 3, 6) quantity part number suffix quantity part number suffix quantity part number suffix ap432(a)sa sa sot23 3000/tape & reel -7 na na na na ap432(a)sr sr sot23r 3000/tape & reel -7 na na na na ap432(a)q q sot25 3000/tape & reel -7 na na na na ap432(a)w w sc59 3000/tape & reel -7 na na na na ap432(a)r r sc59r 3000/tape & reel -7 na na na na ap432(a) sop-8l na na 2500/tape & reel -13 na na ap432(a)y y sot89-3l na na 2500/tape & reel -13 na na ap432(a)v v to92-3l na na na na 2000/box -a lead-free lead-free lead-free lead-free lead-free notes: 1. sot25, sot89-3l, sc59 (w package code), sc59 (r package code) and to92-3l are ?lead free? products only. 2. sop-8l, sot23 and sot23r are available in ?green? product only. 3. eu directive 2002/95/ec (rohs). a ll applicable rohs exemptions applied, see eu directive 200/95/ec annex notes. 4. ammo box is for to92-3l spread lead. 5. suffix ?a? denotes ap431a device. 6. pad layout as shown on diodes inc. suggested pad layout document ap02001, which can be found on our website at http://www.diodes.com/datasheets/ap02001.pdf .
ap432/ap432a adjustable precision shunt regulator ap432/ap432a rev. 10 2 of 14 may 2008 www.diodes.com ? diodes incorporated pin assignment (1) sot25 (2) sop-8l 4ref 5anode nc 1 cathode 3 nc 2 (top view) nc 5 4 18 6 7 3 2 anode anode cathode nc anode ref anode (top view) (3) sc59 (4) sc59r (top view) anode 1 3 ref 2 cathode anode 1 2ref 3cathode (top view) (5) sot23 (6) sot23r (top view) anode 1 2cathode 3ref (top view) anode 1 2 cathode 3 ref (7) sot89-3l (8) to92-3l 1 2 3 anode cathode ref (top view) (top view) 1 ref 2 anode + + + 3 cathode
ap432/ap432a adjustable precision shunt regulator ap432/ap432a rev. 10 3 of 14 may 2008 www.diodes.com ? diodes incorporated typical application circuit + + r2 r1 v out v in v out = (1+r1/r2)v ref precision regulator c in c out ap432 ref (r) v ref + - anode (a) cathode (c) cathode (c) ref (r) anode (a) block diagram symbol
ap432/ap432a adjustable precision shunt regulator ap432/ap432a rev. 10 4 of 14 may 2008 www.diodes.com ? diodes incorporated absolute maximum ratings symbol parameter rating unit vcv cathode voltage +20 v i cc continuous cathode current -10 to +250 ma i ref reference input current 10 ma t op operating temperature -20 to +85 o c t st storage temperature -65 to +150 o c sot23(r) 400 mw sot25 550 mw sc59(r) 400 mw sop-8l 600 mw sot89-3l 800 mw p d power dissipation (notes 7, 8) to92-3l 780 mw notes: 7. t j , max =150c 8. ratings apply to ambient temperature at 25c.
ap432/ap432a adjustable precision shunt regulator ap432/ap432a rev. 10 5 of 14 may 2008 www.diodes.com ? diodes incorporated electrical characteristics (t a = 25 o c, v + = +5.0v, unless otherwise stated) symbol parameter test conditions min typ. max unit v ref reference voltage v ka = v ref , i ka = 10ma (fig.1) ap432 ap432a 1.227 1.233 1.24 1.252 1.246 v v ref deviation of reference input voltage over temperature (note 9) v ka = v ref , i ka = 10ma, ta = full range (fig.1) ? 3.0 20 mv v ref v ka ratio of the change in reference voltage to the change in cathode voltage i ka = 10ma (fig. 2) v ka = 20~ v ref ? -1.4 -2.0 mv/v i ref reference input current r1 = 10k ? ,r2 = i ka = 10ma (fig. 2) ? 1.4 3.5 a i ref deviation of reference input current over temperature r1 = 10k ? ,r2 = i ka = 10ma ta = full range (fig. 2) ? 0.4 1.2 a i ka(min) minimum cathode current for regulation v ka = v ref (fig.1) ? 0.15 0.3 ma i ka(off) off-state current v ka = 36v, v ref = 0v (fig. 3) ? 0.1 1.0 a | z ka | dynamic output impedance (note 10) v ka = v ref v ka = v ref i ka = 0.1ma ~ 15ma frequency 1khz (fig.1) ? 0.2 0.5 ? v max v min t i t 2 temperature v dev = v max - v min notes: 9. deviation of reference input voltage, v dev , is defined as the maximum variation of the refe rence over the full temperature range. the average temperature coefficient of the reference input voltage v ref is defined as: 12 6 ref dev ref tt 10) c)(25v v ( v ? ? = ????????..??????.. ( ) c ppm where: t2 ? t1 = full temperature change. v ref can be positive or negative depending on whether the slope is positive or negative. notes: 10. the dynamic output impedance, r z , is defined as: ka ka ka i v z = when the device is programmed with two external resistors r1 an d r2 (see figure 2.), the dynamic output impedance of the overal l circuit, is defined as: ) r2 r1 (1z i v z ka ' ka + =
ap432/ap432a adjustable precision shunt regulator ap432/ap432a rev. 10 6 of 14 may 2008 www.diodes.com ? diodes incorporated test circuits input v ref v ka i ka fig 1. test circuit for v ka = v ref in v ref r1 r2 i ref note:v ka =v ref (1+r1/r2)+i refx r1 i ka v ka fig 2. test circuit for v ka > v ref in v ka i z(off) fig 3. test circuit for off-state current
ap432/ap432a adjustable precision shunt regulator ap432/ap432a rev. 10 7 of 14 may 2008 www.diodes.com ? diodes incorporated typical performance characteristics + - + - output gnd 15k 8.25k 9 f i ka 232 test circuit for voltage amplification small-signal voltage amplification vs frequency 0 10 20 30 40 50 60 1k 10k 100k 1m 10m f-frequency-hz a v -small signal voltage amplification (db) i ka =10ma t a =25 o c + - i ka gnd output 1k 50 test circuit for reference impedance reference impedance vs frequency 0.1 1 10 100 1k 10k 100k 1m 10m f-frequency-hz O zka O reference impedance ( ) i ka =10ma t =25 c a o + - 150 i ka v batt c l test circuit for curve a + - c l r1=10k r2 i ka 150 v batt test circuit for curve b, c, and d the areas under the curves represent conditions that may cause the device to oscillate. for curves b, c, and d, r2 and v+ were adjusted to establish the initial v ka and i ka conditions with c l =0.v batt and c l were then adjusted to determine the ranges of stability. stability boundary conditions ? 0 10 20 30 40 50 60 70 80 90 100 0.001 0.01 0.1 1 10 c l -load capacitance-f i ka -cathode current-ma a v ka =v ref b v ka =5v c v ka =10v d v ka =15v a b c d stable stable ta=25 o c
ap432/ap432a adjustable precision shunt regulator ap432/ap432a rev. 10 8 of 14 may 2008 www.diodes.com ? diodes incorporated application examples v in + low l imit v ref (1 + r1b/r2b) +v be high limit v ref (1 + r1a/r2a) r1a r1b r2a r2b v be output on when low limit < < high limit fig.10 over-voltage / under-voltage protection circuit v in r cl i out i out = v ref / r cl fig. 6 current limiter or current source i out v in i out = v ref / r s r s fig. 7 constant-current sink fig. 4 voltage monitor fig. 5 delay timer v out = (1 + r1/r2) x v ref v in r1 r2 fig. 8 higher-current shunt regulator v out v in pulse r1 r2 l imit (1 + r1/r2) x v ref fig. 9 crow bar v out v in on off r + v in delay = rc x ln ( v in -v ref ) led on when low limit < v in high limit low limit v ref (1+r1b/r2b) high limit v ref (1+r1a/r2a) r1a r2a v in r1b r2b < v in
ap432/ap432a adjustable precision shunt regulator ap432/ap432a rev. 10 9 of 14 may 2008 www.diodes.com ? diodes incorporated marking information (1) sc59 and sc59r 1 2 3 xx y m x ( top view ) xx : identification code y : year 0-9 m : month a~l l : lead free (2) sot23 and sot23r 1 2 3 xx y m x ( top view ) xx : identification code y : year 0-9 m : month a~l g : green (3) sot25 y : year 0~9 m : month a~l x : l : lead free xx : identification code 1 2 3 5 7 4 xx y m x ( top view )
ap432/ap432a adjustable precision shunt regulator ap432/ap432a rev. 10 10 of 14 may 2008 www.diodes.com ? diodes incorporated marking information (continued) (4) sop-8l yy : year ww : nth week ap432 x ( top view ) yy ww part number logo x g : green 5 8 4 1 accuracy blank : 2.495 + 1% a : 2.495 + 0.5% (5) sot89-3l 1 3 2 x x y m ( top view ) x m : month : a~l y : year : 0~9 x : l : lead free xx : identification code (6) to92-3l ( top view ) ap432 x y ww x x accuracy blank: 2.495 + 1% a: 2.495 + 0.5% x : internal code ww : nth week y : year l : lead free identification code table device package (note 11) identification code date code ap432sa sot23 d3 ym ap432asa sot23 d4 ym ap432sr sot23r d7 ym ap432asr sot23r d8 ym ap432q sot25 b7 ym ap432aq sot25 b8 ym ap432w sc59 b3 ym ap432aw sc59 b4 ym ap432r sc59r b5 ym ap432ar sc59r b6 ym ap432y sot89 b1 ym ap432ay sot89 b2 ym notes: 11. for packaging details, go to our website at http://www.diodes.com/datasheets/ap02007.pdf .
ap432/ap432a adjustable precision shunt regulator ap432/ap432a rev. 10 11 of 14 may 2008 www.diodes.com ? diodes incorporated package information (all dimensions in mm) (1) package type: sot25 (2) package type: sc59 and sc59r 0.35/0.50 0.10/0.20 0.013/0.10 0.35/0.55 0.95 2.70/ 3.00 2.90/3.10 1.00/ 1.30 1.50/ 1.70 1.90 top view 0/8
ap432/ap432a adjustable precision shunt regulator ap432/ap432a rev. 10 12 of 14 may 2008 www.diodes.com ? diodes incorporated package information (continued) (3) package types: sot23 and sot23r (4) package type: sop-8l 1.27typ 0.3/0.5 7~9 4.80/5.30 3.70/4.10 5.79/6.20 0.20typ 7~9 3.70/4.10 0.38/1.27 0.08/0.25 gauge plane 0.254 seating plane 0.35max. 45 detail "a" detail "a" 1.30/1.50 1.75max. land pattern recommendation 0.78 (unit: mm) 6x-1.27 8x-1.55 8x-0.60 5.4
ap432/ap432a adjustable precision shunt regulator ap432/ap432a rev. 10 13 of 14 may 2008 www.diodes.com ? diodes incorporated package information (continued) (5) package type: sot89-3l 0.80/ 1.20 2.35/2.60 typ 2.48 1.40/1.75 typ 1.60 2.90/3.10 typ 3.00 1.40/1.60 typ 1.50 4.40/4.60 typ 4.50 0.41/0.53 typ 0.47 0.36/0.48 typ 0.42 8 0 (2x) 1.7 0.4 0.9 2.7 1.3 1.9 5 0 (2x) land pattern recommendation (unit: mm) 1.5 0.36/0.48 typ 0.42 1.45/1.55 typ 1.50 0.35/0.43 typ 0.39 3.94/4.25 (6) package type: to92-3l for ammo pack
ap432/ap432a adjustable precision shunt regulator ap432/ap432a rev. 10 14 of 14 may 2008 www.diodes.com ? diodes incorporated important notice life support diodes incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or ot her changes without further notice to any product herein. diodes incorporated does not assume any liability arising out of the application or use of any pr oduct described herein; neither does it convey any license under its patent rights, nor the rights of others. the user of products in such applications shall a ssume all risks of such use and will agree to hold diodes incorporated and all the companies whose products are represented on our website, harmless against all dam ages. diodes incorporated products are not authorized for use as critical components in life support devices or systems without the e xpressed written approval of the president of diodes incorporated.

▲Up To Search▲

Price & Availability of AP432YL-U

	To Download AP432YL-U Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .