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1 ? fn6174.1 caution: these devices are sensitive to electrosta tic discharge; follow proper ic handling procedures. 1-888-intersil or 1-888-468-3774 | intersil (and design) is a registered trademark of intersil americas inc. copyright intersil americas inc. 2008, 2011. all rights reserved all other trademarks mentioned are the property of their respective owners. isl88001, isl88002, isl88003 ultra low power 3 ld voltage supervisors in sc-70 and sot-23 packages the isl88001, isl88002, isl88003 supervisors are extremely low power 160na voltage supervisors that help to monitor the power supply voltages in a wide variety of applications. by providing power-on reset and supply voltage supervision in small 3 ld sc-70 and sot-23 packages, the isl88001, isl88002, isl88003 devices can help to lower system cost, re duce board space requirements and increase the reliability of systems. the most popular voltage trip points are available for standard power supplies from 1.8v to 5.0v (see ?ordering information? on page 3). these reset threshold voltages are accurate to within 1.2% and the reset signal is valid down to 1v. active high and active low reset outputs are available in push-pull and open drain configurations (see ?functional block diagrams? on page 2). the isl88001, isl88002, isl8800 3 devices are specifically designed for low power consumption and high threshold accuracy, making them especially suitable for electronic devices and portable equipment. pinouts isl88001, isl88002 (3 ld sc-70, 3 ld sot-23) top view isl88003 (3 ld sc-70, 3 ld sot-23) top view features ? single voltage monitoring supervisors ? fixed-voltage options allow precise monitoring of +1.8v, +2.5v, +3.0v, +3.3v a nd +5.0v power supplies ? ultra low 160na supply current ? 1.2% voltage threshold accuracy ? 190ms power-on reset timeout ? reset signal valid down to v dd = 1v ? no external components necessary ? immune to power-supply transients ? available in small 3 ld sc-70 and 3 ld sot-23 pb-free packages ? pin compatible with max803, max809, max810 ? pb-free (rohs compliant) applications ? microprocessor/microcontroller systems ? intelligent instruments ? controllers ? computer systems ? portable/battery-powered equipment ? pda and hand-held pc devices gnd rst 1 2 3 isl88001 has a push-pull rst output v dd isl88002 has an open-drain rst output isl88001 isl88002 gnd rst 1 2 3 isl88003 has a push-pull rst output v dd isl88003 data sheet june 17, 2011
2 fn6174.1 june 17, 2011 functional block diagrams pin descriptions pin pin name pin function isl88001 isl88002 isl88003 1 1 gnd ground ic reference. 2rst the rst pin is an active-low reset output that is pulled to gnd (low) when reset is asserted. the isl88001 is push-pull while the isl88002 is open drain. 2 rst the rst pin is a push-pull active-high reset output that is pulled to v dd (high) when reset is asserted. 33 v dd supply voltage and monitored input. the v dd pin is the ic power supply terminal and also the monitored input. v ref v dd por rst gnd isl88001 v dd v ref v dd por rst gnd isl88002 v dd v ref v dd por rst gnd isl88003 v dd isl88001, isl88002, isl88003
3 fn6174.1 june 17, 2011 ordering information part number (notes 1, 2, 3, 4) part marking (bottom brand) reset nominal v thvdd (v) temperature range (c) package tape and reel (pb-free) pkg. dwg. # isl88001ie46z-t 146 push-pull rst 4.62 -40 to +85 3 ld sc-70 p3.049 isl88001ie44z-t 144 push-pull rst 4.38 -40 to +85 3 ld sc-70 p3.049 isl88001ie31z-t 131 push-pull rst 3.07 -40 to +85 3 ld sc-70 p3.049 isl88001ie29z-t 129 push-pull rst 2.92 -40 to +85 3 ld sc-70 p3.049 isl88001ie26z-t 126 push-pull rst 2.63 -40 to +85 3 ld sc-70 p3.049 isl88001ie23z-t 123 push-pull rst 2.32 -40 to +85 3 ld sc-70 p3.049 isl88001ie22z-t 122 push-pull rst 2.19 -40 to +85 3 ld sc-70 p3.049 isl88001ie17z-t 117 push-pull rst 1.67 -40 to +85 3 ld sc-70 p3.049 isl88001ie16z-t 116 push-pull rst 1.58 -40 to +85 3 ld sc-70 p3.049 isl88001ih46z-t 1h46 push-pull rst 4.62 -40 to +85 3 ld sot-23 p3.064 isl88001ih44z-t 1h44 push-pull rst 4.38 -40 to +85 3 ld sot-23 p3.064 isl88001ih31z-t 1h31 push-pull rst 3.07 -40 to +85 3 ld sot-23 p3.064 isl88001ih29z-t 1h29 push-pull rst 2.92 -40 to +85 3 ld sot-23 p3.064 isl88001ih26z-t 1h26 push-pull rst 2.63 -40 to +85 3 ld sot-23 p3.064 isl88001ih23z-t 1h23 push-pull rst 2.32 -40 to +85 3 ld sot-23 p3.064 isl88001ih22z-t 1h22 push-pull rst 2.19 -40 to +85 3 ld sot-23 p3.064 isl88001ih17z-t 1h17 push-pull rst 1.67 -40 to +85 3 ld sot-23 p3.064 isl88001ih16z-t 1h16 push-pull rst 1.58 -40 to +85 3 ld sot-23 p3.064 isl88002ie46z-t 246 open drain rst 4.62 -40 to +85 3 ld sc-70 p3.049 isl88002ie44z-t 244 open drain rst 4.38 -40 to +85 3 ld sc-70 p3.049 isl88002ie31z-t 231 open drain rst 3.07 -40 to +85 3 ld sc-70 p3.049 isl88002ie29z-t 229 open drain rst 2.92 -40 to +85 3 ld sc-70 p3.049 isl88002ie26z-t 226 open drain rst 2.63 -40 to +85 3 ld sc-70 p3.049 isl88002ie23z-t 223 open drain rst 2.32 -40 to +85 3 ld sc-70 p3.049 isl88002ie22z-t 222 open drain rst 2.19 -40 to +85 3 ld sc-70 p3.049 isl88002ie17z-t 217 open drain rst 1.67 -40 to +85 3 ld sc-70 p3.049 isl88002ie16z-t 216 open drain rst 1.58 -40 to +85 3 ld sc-70 p3.049 isl88002ih46z-t 2h46 open drain rst 4.62 -40 to +85 3 ld sot-23 p3.064 isl88002ih44z-t 2h44 open drain rst 4.38 -40 to +85 3 ld sot-23 p3.064 isl88002ih31z-t 2h31 open drain rst 3.07 -40 to +85 3 ld sot-23 p3.064 isl88002ih29z-t 2h29 open drain rst 2.92 -40 to +85 3 ld sot-23 p3.064 isl88002ih26z-t 2h26 open drain rst 2.63 -40 to +85 3 ld sot-23 p3.064 isl88002ih23z-t 2h23 open drain rst 2.32 -40 to +85 3 ld sot-23 p3.064 isl88002ih22z-t 2h22 open drain rst 2.19 -40 to +85 3 ld sot-23 p3.064 isl88002ih17z-t 2h17 open drain rst 1.67 -40 to +85 3 ld sot-23 p3.064 isl88002ih16z-t 2h16 open drain rst 1.58 -40 to +85 3 ld sot-23 p3.064 isl88003ie46z-t 346 push-pull rst 4.62 -40 to +85 3 ld sc-70 p3.049 isl88003ie44z-t 344 push-pull rst 4.38 -40 to +85 3 ld sc-70 p3.049 isl88001, isl88002, isl88003
4 fn6174.1 june 17, 2011 isl88003ie31z-t 331 push-pull rst 3.07 -40 to +85 3 ld sc-70 p3.049 isl88003ie29z-t 329 push-pull rst 2.92 -40 to +85 3 ld sc-70 p3.049 isl88003ie26z-t 326 push-pull rst 2.63 -40 to +85 3 ld sc-70 p3.049 isl88003ie23z-t 323 push-pull rst 2.32 -40 to +85 3 ld sc-70 p3.049 isl88003ie22z-t 322 push-pull rst 2.19 -40 to +85 3 ld sc-70 p3.049 isl88003ie17z-t 317 push-pull rst 1.67 -40 to +85 3 ld sc-70 p3.049 isl88003ie16z-t 316 push-pull rst 1.58 -40 to +85 3 ld sc-70 p3.049 isl88003ih46z-t 3h46 push-pull rst 4.62 -40 to +85 3 ld sot-23 p3.064 isl88003ih44z-t 3h44 push-pull rst 4.38 -40 to +85 3 ld sot-23 p3.064 isl88003ih31z-t 3h31 push-pull rst 3.07 -40 to +85 3 ld sot-23 p3.064 isl88003ih29z-t 3h29 push-pull rst 2.92 -40 to +85 3 ld sot-23 p3.064 isl88003ih26z-t 3h26 push-pull rst 2.63 -40 to +85 3 ld sot-23 p3.064 isl88003ih23z-t 3h23 push-pull rst 2.32 -40 to +85 3 ld sot-23 p3.064 isl88003ih22z-t 3h22 push-pull rst 2.19 -40 to +85 3 ld sot-23 p3.064 isl88003ih17z-t 3h17 push-pull rst 1.67 -40 to +85 3 ld sot-23 p3.064 isl88003ih16z-t 3h16 push-pull rst 1.58 -40 to +85 3 ld sot-23 p3.064 isl88001/2/3eval1z evaluation platform for isl88001, isl88002 and isl88003 notes: 1. for non-standard voltage trip point versions between 1.5v and 5v in 100mv increments, please contact factory for availability . 2. add ?-tk? suffix for 1000 piece tape and reel. please refer to tb347 for details on reel specifications. 3. these intersil pb-free plastic packaged pr oducts employ special pb-free material sets , molding compounds/die attach materials , and 100% matte tin plate plus anneal (e3 termination finish, which is rohs compliant and compatible with both snpb and pb-free soldering opera tions). intersil pb-free products are msl classified at pb-fr ee peak reflow temperatures that meet or exceed the pb-free requirements of ipc/jed ec j std- 020. 4. for moisture sensitivity level (msl), please see device in formation page for isl88001, isl88002, isl88003 . for more information on msl pl ease see techbrief tb363 . ordering information (continued) part number (notes 1, 2, 3, 4) part marking (bottom brand) reset nominal v thvdd (v) temperature range (c) package tape and reel (pb-free) pkg. dwg. # isl88001, isl88002, isl88003
5 fn6174.1 june 17, 2011 absolute maximum rati ngs thermal information voltage on any pin with respect to gnd . . . . . . . . . . -0.3v to +6.5v dc output current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10ma recommended operating conditions temperature range (industrial) . . . . . . . . . . . . . . . . .-40c to +85c thermal resistance (typical, note 5) ja (c/w) 3 lead sc-70 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 640 3 lead sot-23. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 590 temperature under bias . . . . . . . . . . . . . . . . . . . . .-40c to +125c storage temperature . . . . . . . . . . . . . . . . . . . . . . . .-65c to +150c pb-free reflow profilesee link below http://www.intersil.com/pbfree/pb-freereflow.asp caution: do not operate at or near the maximum ratings listed fo r extended periods of time. exposure to such conditions may adv ersely impact product reliability and result in failures not covered by warranty. note: 5. ja is measured with the component mounted on a high effective therma l conductivity test board in free air. see tech brief tb379 f or details. electrical specifications over the recommended operating conditi ons unless otherwise specified. boldface limits apply over the operating temperature range, -40c to +85c. symbol parameter test conditions min (note 6) typ max (note 6) units bias v dd supply voltage range v thvdd = 4.64v, 4.38v, 3.09v, 2.92v, 2.63v 1.8 5.5 v v thvdd = 2.32v, 2.19v, 1.67v, 1.58v 1.8 2.75 v i dd supply current (reset, reset open) v dd = 5.0v, v thvdd = 4.64v, 4.38v 215 400 na v dd = 3.3v, v thvdd = 3.09v, 2.92v, 2.63v 200 350 na v dd = 2.5v, v thvdd = 2.32v, 2.19v 175 325 na v dd = 1.8v, v thvdd = 1.67v, 1.58v 160 300 na voltage threshold v thvdd falling fixed v dd voltage trip point isl88001, 88002, 88003ix 46, t a = +25c 4.570 4.625 4.681 v isl88001, 88002, 88003ix 46 4.500 4.750 v isl88001, 88002, 88003ix 44, t a = +25c 4.327 4.380 4.433 v isl88001, 88002, 88003ix 44 4.262 4.498 v isl88001, 88002, 88003ix 31, t a = +25c 3.038 3.075 3.112 v isl88001, 88002, 88003ix 31 3.000 3.150 v isl88001, 88002, 88003ix 29, t a = +25c 2.890 2.925 2.960 v isl88001, 88002, 88003ix 29 2.850 3.000 v isl88001, 88002, 88003ix 26, t a = +25c 2.598 2.630 2.662 v isl88001, 88002, 88003ix 26 2.559 2.701 v isl88001, 88002, 88003ix 23, t a = +25c 2.292 2.320 2.348 v isl88001, 88002, 88003ix 23 2.257 2.383 v isl88001, 88002, 88003ix 22, t a = +25c 2.164 2.190 2.216 v isl88001, 88002, 88003ix 22 2.131 2.249 v isl88001, 88002, 88003ix 17, t a = +25c 1.650 1.670 1.690 v isl88001, 88002, 88003ix 17 1.625 1.715 v isl88001, 88002, 88003ix 16, t a = +25c 1.561 1.580 1.599 v isl88001, 88002, 88003ix 16 1.537 1.623 v v thvddhyst hysteresis at v dd input 1% t vthvdd v thvdd temperature coefficient 0.48 mv/c isl88001, isl88002, isl88003
6 fn6174.1 june 17, 2011 pin description rst the isl88003 push-pull rst output is set to vdd (high) whenever the device is first powered up or vdd falls below its respective minimum voltage sense level. rst the rst output functions identically to the complementary rst output. on the isl88001, this is a push-pull output. on the isl88002, it is an open drain output that is pulled to gnd (low) when reset is asserted. suggested pull-up rst resistor values are in the range of 5k ? to 100k ? . v dd the v dd pin is the power supply terminal. the voltage at this pin is compared against an internal factory-programmed voltage trip point, v thvdd . a reset is first asserted when the device is initially powered up to ensure that the power supply has stabilized. thereafter, reset is again asserted whenever v dd falls below v thvdd . the device is designed with hysteresis to help prevent chattering due to noise. principles of operation the isl88001, isl88002, isl88003 devices provide a low power, high accuracy solution for those voltage monitoring applications needing supply voltage supervision with power reset control. by integrating these features into small 3 ld sc-70 and 3 ld sot-23 packages and consuming as little as 160na of supply current, th ese devices can lower system cost and reduce board space requirements. low voltage monitoring during normal operation, the isl88001, isl88002, isl88003 devices monitor the voltage level of v dd . the device asserts a reset signal (rst = low or rst = high) to a p/c if this voltage is less than the preset voltage trip point. the reset signal prevents system operation during a power failure or brownout condition. this reset signal remains asserted until v dd exceeds the voltage threshold setting for the reset time delay period t por . see figure 2. reset / reset v ol reset output voltage low v dd < v thvdd, for isl88001 0.2 0.40 v v dd < v thvdd, sinking 0.5ma for isl88002 0.2 0.40 v v dd > v thvdd , for isl88003 0.2 0.40 v v oh reset output voltage high v dd > v thvdd , for isl88001 v dd - 0.4 v dd - 0.2 v v dd > v thvdd , sourcing 0.5ma, isl88002 v dd - 0.2 v v dd < v thvdd , for isl88003 v dd - 0.4 v dd - 0.2 v t rpd v th to reset asserted delay 15 s t por por timeout delay 140 200 260 ms c load load capacitance on reset pin 5 pf note: 6. parameters with min and/or max limits are 100% tested at +25 c, unless otherwise specified. te mperature limits established by characterization and are not production tested. electrical specifications over the recommended operating conditi ons unless otherwise specified. (continued)boldface limits apply over the operating temperature range, -40c to +85c. symbol parameter test conditions min (note 6) typ max (note 6) units isl88001 r pu * isl88002* figure 1. typical application diagram gnd v dd isl88003 p/c gnd v dd v dd reset input reset output *necessary for isl88002 isl88001, isl88002, isl88003
7 fn6174.1 june 17, 2011 power-on reset (por) applying power to the isl88001, isl88002, isl88003 activates a por circuit, wh ich asserts reset once v dd = 1 v. (i.e. rst goes low). this provides several benefits: ? it prevents the system microprocessor from starting to operate with insufficient voltage. ? it prevents the processor from operating prior to stabilization of the oscillator. ? it ensures that the monitored device is held out of operation until internal registers are properly loaded. ? it allows time for an fpga to download its configuration prior to initialization of the circuit. the reset signal remains asserted until v dd rises above the minimum voltage sense level for time period t por . this ensures that the v dd voltage has stabilized. optional v dd de-coupling capacitance can be added to filter transients if needed. see figures 13 and 14 illustrating the available evaluation platform, isl88001/2/3eval1z. this evaluation board is shipped with the many released variants loosely packed and the 4.6v threshold variant s mounted for immediate evaluation. figure 2. voltage monitoring timing diagram v dd v th/ v por 1v rst t por t por t rpd parametric performance figure 3. isl88001 rst t por ~144ms figure 4. isl88002 rst t por ~155ms, r pu = 5k vdd rst vdd rst vdd rst isl88001, isl88002, isl88003
8 fn6174.1 june 17, 2011 figure 5. isl88003 rst t por ~145ms figure 6. isl88003 t prd ~26s figure 7. isl8800x 4.6v v thvdd vs temperature figure 8. isl8800x 2.9v v thvdd vs temperature figure 9. isl8800x 2.2v v thvdd vs temperature figure 10. isl8800x 1.58v v thvdd vs temperature parametric performance (continued) vdd rst 4.50 4.55 4.60 4.65 4.70 4.75 -40 -20 0 25 50 85 125 temperature (c) 4.6v v thvdd (v) 2.86 2.88 2.90 2.92 2.94 2.96 -40 -20 0 25 50 85 125 temperature (c) 2.9v v thvdd (v) 2.13 2.15 2.17 2.19 2.21 2.23 -40 -20 0 25 50 85 125 temperature (c) 2.2v v thdd (v) 1.55 1.56 1.56 1.57 1.57 1.58 1.58 -40-20 0 255085125 temperature (c) 1.58v v thvdd (v) isl88001, isl88002, isl88003
9 fn6174.1 june 17, 2011 figure 11. isl8800x normalized +25c t por vs temperature figure 12. isl8800x normalized +25c i dd vs temperature parametric performance (continued) 0.985 0.990 0.995 1.000 1.005 1.010 1.015 -40-20 0 255085125 temperature (c) normalized t por 0.5 1.0 1.5 2.0 2.5 3.0 -40 -20 0 25 50 85 125 temperature (c) normalized i dd isl88001/2/3eval1z evaluation platform figure 13. isl88001/2/3eval1z schematic figure 14. isl88001/2/3eval1z photograph 1k gnd v dd rst1 isl88001 isl88002 isl88003 rst2 rst3 isl88001, isl88002, isl88003
10 all intersil u.s. products are manufactured, asse mbled and tested utilizing iso9000 quality systems. intersil corporation?s quality certifications ca n be viewed at www.intersil.com/design/quality intersil products are sold by description only. intersil corpor ation reserves the right to make changes in circuit design, soft ware and/or specifications at any time without notice. accordingly, the reader is cautioned to verify that data sheets are current before placing orders. information furnishe d by intersil is believed to be accurate and reliable. however, no responsibility is assumed by intersil or its subsidiaries for its use; nor for any infringements of paten ts or other rights of third parties which may result from its use. no license is granted by implication or otherwise under any patent or patent rights of intersil or its subsidiari es. for information regarding intersil corporation and its products, see www.intersil.com fn6174.1 june 17, 2011 isl88001, isl88002, isl88003 small outline transistor plastic packages (sc70-3) view c l r1 r 4x 1 4x 1 gauge plane l1 seating l2 c plane c base metal with c1 b1 plating b d e1 e c l e b c l 0.20 (0.008) m c 12 3 4 5 6 e1 c l c view c c l a2 a a1 0.10 (0.004) c -c- seating plane p3.049 3 lead small outline transistor plastic package symbol inches millimeters notes min max min max a 0.031 0.043 0.80 1.10 - a1 0.000 0.004 0.00 0.10 - a2 0.031 0.039 0.80 1.00 - b 0.009 0.016 0.25 0.40 - b1 0.009 0.014 0.25 0.35 c 0.004 0.007 0.10 0.18 6 c1 0.004 0.007 0.10 0.16 6 d 0.071 0.087 1.80 2.20 3 e 0.071 0.094 1.80 2.40 - e1 0.045 0.053 1.15 1.35 3 e 0.0256 ref 0.65 ref - e1 0.0512 ref 1.30 ref - l 0.010 0.018 0.26 0.46 4 l1 0.017 ref. 0.420 ref. - l2 0.006 bsc 0.15 bsc 0 8 0 8 - n3 35 r 0.004 - 0.10 - r1 0.004 0.010 0.15 0.25 rev. 0 11/06 notes: 1. dimensioning and tolerances per asme y14.5m-1994. 2. package conforms to eiaj sc70 and jedec mo-203aa. 3. dimensions d and e1 are exclusiv e of mold flash, protrusions, or gate burrs. 4. footlength l measured at reference to gauge plane. 5. ?n? is the number of terminal positions. 6. these dimensions apply to the flat section of the lead between 0.08mm and 0.15mm from the lead tip. 7. controlling dimension: millime ter. converted inch dimen- sions are for reference only.
11 fn6174.1 june 17, 2011 isl88001, isl88002, isl88003 package outline drawing p3.064 3 lead small outline transistor plastic package (sot23-3) rev 2, 9/09 reference jedec to-236. footlength is measured at reference to gauge plane. dimension does not include interlead flash or protrusions. dimensioning and tolerancing conform to amsey14.5m-1994. 3. 5. 4. 2. dimensions are in millimeters. 1. notes: detail "a" side view typical recommended land pattern top view c 0.10 c 0.20 m c l c 1.300.10 c l 0.950 2.370.27 2.920.12 4 4 10 typ (2 plcs) 0.013(min) 0.100(max) seating plane 1.000.12 0.910.03 seating plane gauge plane 0.25 0.310.10 detail "a" 0.4350.065 0 - 8 deg. (2.15) (1.25) (0.60) (0.95 typ.) 5 0 . 1 3 0 . 0 5 dimensions in ( ) for reference only. interlead flash or protrusions shall not exceed 0.25mm per side.

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