? semiconductor components industries, llc, 2010 may, 2010 ? rev. 4 1 publication order number: cat8801/d cat8801 200 na microprocessor power supply supervisors description the cat8801 is a supervisory circuit that monitors power supplies in digital systems and provides a reset signal whenever the system?s input voltage is below a prescribed minimum level. the cat8801 replaces popular voltage supervisors such as max809 in applications where operating current is a primary consideration. cat8801 generates a reset signal, which is asserted while the power supply voltage is below a preset threshold level and remains asserted for at least 140 ms after the power supply level has risen above that level. nine industry standard threshold levels are offered to support +5.0 v, +3.3 v, +3.0 v, +2.5 v and +1.8 v systems. on semiconductor?s floating gate technology, used in programming the trigger thresholds, makes it possible to quickly offer any custom reset threshold value should the 9 standard voltage thresholds not meet a system?s needs. the cat8801 features a push ? pull cmos reset output (active low) and is fully specified over the industrial temperature range of ? 40 c to 85 c. cat8801 is available in compact 3 ? pin sot23 and sc ? 70 packages. features ? precision voltage monitoring of +1.8 v, +2.5 v, +3.0 v, +3.3 v and +5.0 v power supplies ? ultra low 200 na supply current ? 1.2% voltage threshold accuracy ? 270 ms power ? on reset timeout ? reset signal valid down to v cc = 1 v ? no external components necessary ? high immunity to power ? supply transients ? industrial t emperature range: ? 40 c to +85 c ? available in rohs ? compliant sot ? 23 and sc ? 70 packages applications ? computers ? servers ? laptops ? cable modems ? wireless communications ? embedded control systems ? power meters ? pdas and handheld equipment http://onsemi.com pin connections see detailed ordering and shipping information in the package dimensions section on page 7 of this data sheet. ordering information sot ? 23 tb suffix case 527ag sc ? 70 sd suffix case 419ab 3 ? lead sot ? 23 3 ? lead sc ? 70 (top view) v cc gnd reset cat8801 l m t s r z nominal threshold threshold suffix threshold suffix selector y w v 4.625 4.380 3.075 2.925 2.630 2.320 2.190 1.670 1.580 1 2 3
cat8801 http://onsemi.com 2 table 1. pin description pin # name description 1 gnd ground 2 reset active low reset. reset is asserted if v cc falls below the reset threshold and remains low for at least 140 ms after v cc rises above the reset threshold. 3 v cc power supply voltage that is monitored. block diagram cat8801 + ? digital delay tolerance bias voltage reference gnd v cc v cc reset v cc table 2. absolute maximum ratings parameters ratings units any pin with respect to ground ? 0.3 to +6.0 v input current, v cc 20 ma output current, reset 20 ma rate of rise, v cc 100 v/ s continuous power dissipation mw derate 2.2 mw/ c above 70 c (sc ? 70) 175 derate 4 mw/ c above 70 c (sot ? 23) 320 operating temperature range ? 40 to +85 c storage temperature range ? 65 to +150 c lead soldering temperature (10 seconds) 300 c stresses exceeding maximum ratings may damage the device. maximum ratings are stress ratings only. functional operation above t he recommended operating conditions is not implied. extended exposure to stresses above the recommended operating conditions may af fect device reliability.
cat8801 http://onsemi.com 3 table 3. electrical characteristics (note 1) (v cc = full range, t a = ? 40 c to +85 c unless otherwise noted. typical values at t a = +25 c.) symbol parameter test conditions min typ max units v cc range t a = 0 c to +70 c 1.0 5.5 v t a = ? 40 c to +85 c 1.2 5.5 i cc supply current v th < v cc < 5.5 v 200 400 na v th < v cc < 3.6 v 175 350 v th reset threshold voltage (note 2) l t a = +25 c 4.570 4.625 4.681 v t a = ? 40 c to +85 c 4.500 4.750 m t a = +25 c 4.327 4.380 4.433 t a = ? 40 c to +85 c 4.262 4.498 t t a = +25 c 3.038 3.075 3.112 t a = ? 40 c to +85 c 3.000 3.150 s t a = +25 c 2.890 2.925 2.960 t a = ? 40 c to +85 c 2.850 3.000 r t a = +25 c 2.598 2.630 2.662 t a = ? 40 c to +85 c 2.559 2.701 z t a = +25 c 2.292 2.320 2.348 t a = ? 40 c to +85 c 2.257 2.383 y t a = +25 c 2.164 2.190 2.216 t a = ? 40 c to +85 c 2.131 2.249 w t a = +25 c 1.650 1.670 1.690 t a = ? 40 c to +85 c 1.625 1.715 v t a = +25 c 1.561 1.580 1.599 t a = ? 40 c to +85 c 1.537 1.623 v th_hys threshold hysteresis 2 % reset threshold temperature coefficient 0.1 mv/ c v cc to reset delay v cc = v th to (v th ? 100 mv) 20 50 s reset active timeout period t a = ? 40 c to +85 c 140 270 460 ms v ol reset output voltage low i sink = 2 ma 0.4 v v oh reset output voltage high i source = 0.5 ma 0.8 x v cc v 1. production testing done at t a = +25 c; limits over temperature guaranteed by design. 2. measured on falling edge of v cc .
cat8801 http://onsemi.com 4 typical operating characteristics (v cc = full range, t a = ? 40 c to +85 c unless otherwise noted. typical values at t a = +25 c.) figure 1. power ? up reset timeout figure 2. supply current vs. temperature temperature ( c) temperature ( c) 100 75 50 25 0 ? 25 ? 50 200 250 300 350 100 75 50 25 0 ? 25 ? 50 100 120 140 160 180 200 220 figure 3. power ? down reset delay vs. temperature figure 4. normalized reset threshold vs. temperature temperature ( c) temperature ( c) 100 75 50 25 0 ? 25 ? 50 2.5 3.0 3.5 4.0 4.5 5.0 125 100 75 50 25 0 ? 25 ? 50 0.996 0.997 0.998 0.999 1.000 1.001 1.002 1.003 t rst (ms) i sb (na) power ? down reset delay ( s) normalized threshold v cc = 5.5 v v cc = 1.8 v v cc = 5.5 v v cc = 1.8 v 150 description reset timing the reset signal is asserted low for the cat8801 when the power supply voltage falls below the threshold trip voltage and remains asserted for at least 140 ms after the power supply voltage has risen above the threshold. figure 5. reset timing diagram 5v 0v 5v 0v threshold voltage 140ms minimum reset timeout period power supply voltage reset
cat8801 http://onsemi.com 5 package dimensions sc ? 70, 3 lead, 1.25x2 case 419ab ? 01 issue o e1 d a l l1 l2 ee b a1 a2 c top view side view end view 1 1 notes: (1) all dimensions are in millimeters. angles in degrees. (2) complies with jedec mo-203. symbol min nom max e a a1 b c d e e1 e l 0o 8o l2 0.00 0.15 0.08 0.26 1.80 1.80 1.15 0.65 bsc 0.15 bsc 1.10 0.10 0.30 0.22 0.46 2.20 2.40 1.35 l1 0.80 1 4o 10o a2 0.80 1.00 0.42 ref 0.36 2.00 2.10 1.25 0.90
cat8801 http://onsemi.com 6 package dimensions sot ? 23, 3 lead case 527ag ? 01 issue o e1 e a1 e e1 b d 3 12 c a top view side view end view l1 l notes: (1) all dimensions are in millimeters. angles in degrees. (2) complies with jedec to-236. symbol min nom max a a1 b c d e e1 e e1 l1 0o 8o l 0.013 0.37 0.085 2.80 2.10 1.20 1.90 bsc 0.40 ref 1.12 0.10 0.50 0.18 3.04 2.64 1.40 0.54 ref 0.95 bsc 0.89
cat8801 http://onsemi.com 7 example of ordering information (note 3) prefix device # suffix company id cat 8801 l product tb ? g t10 trip level l: 4.625 v m: 4.380 v t: 3.075 v s: 2.925 v r: 2.630 v z: 2.320 v y: 2.190 v w: 1.670 v v: 1.580 v package tb: sot ? 23 green sd: sc70 green t: tape & reel 3: 3,000 / reel lead finish g: nipdau tape & reel (note 6) number 8801 (optional) ordering information parts and threshold voltage sot ? 23 green nipdau lead finish (note 5) sc ? 70 green nipdau lead finish cat8801l 4.625 cat8801ltb ? gt3 cat8801lsd ? gt3 cat8801m 4.380 cat8801mtb ? gt3 cat8801msd ? gt3 cat8801t 3.075 cat8801ttb ? gt3 cat8801tsd ? gt3 cat8801s 2.925 cat8801stb ? gt3 cat8801ssd ? gt3 cat8801r 2.630 cat8801rtb ? gt3 cat8801rsd ? gt3 cat8801z 2.320 cat8801ztb ? gt3 cat8801zsd ? gt3 cat8801y 2.190 cat8801ytb ? gt3 cat8801ysd ? gt3 cat8801w 1.670 cat8801wtb ? gt3 cat8801wsd ? gt3 cat8801v 1.580 cat8801vtb ? gt3 cat8801vsd ? gt3 3. all packages are rohs ? compliant (lead ? free, halogen ? free). 4. the device used in the above example is a cat8801ltb ? gt3 (4.625 v, sot ? 23, nipdau, tape & reel, 3,000/reel). 5. for availability of the various voltage, package and temperature options, please contact your nearest on semiconductor sales office. 6. for information on tape and reel specifications, including part orientation and tape sizes, please refer to our tape and reel packaging specifications brochure, brd8011/d. on semiconductor and are registered trademarks of semiconductor components industries, llc (scillc). scillc reserves the right to mak e changes without further notice to any products herein. scillc makes no warranty, representation or guarantee regarding the suitability of its products for an y particular purpose, nor does scillc assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including wi thout limitation special, consequential or incidental damages. ?typical? parameters which may be provided in scillc data sheets and/or specifications can and do vary in different application s and actual performance may vary over time. all operating parameters, including ?typicals? must be validated for each customer application by customer?s technical experts. scillc does not convey any license under its patent rights nor the rights of others. scillc products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the scillc product could create a sit uation where personal injury or death may occur. should buyer purchase or use scillc products for any such unintended or unauthorized application, buyer shall indemnify and hold scillc and its of ficers, employees, subsidiaries, af filiates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, direct ly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that scillc was negligent regarding the design or manufacture of the part. scillc is an equal opportunity/affirmative action employer. this literature is subject to all applicable copyright laws and is not for resale in any manner. cat8801/d publication ordering information n. american technical support : 800 ? 282 ? 9855 toll free usa/canada europe, middle east and africa technical support: phone: 421 33 790 2910 japan customer focus center phone: 81 ? 3 ? 5773 ? 3850 literature fulfillment : literature distribution center for on semiconductor p.o. box 5163, denver, colorado 80217 usa phone : 303 ? 675 ? 2175 or 800 ? 344 ? 3860 toll free usa/canada fax : 303 ? 675 ? 2176 or 800 ? 344 ? 3867 toll free usa/canada email : orderlit@onsemi.com on semiconductor website : www.onsemi.com order literature : http://www.onsemi.com/orderlit for additional information, please contact your local sales representative
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