View RT9819G-12GQW_9035806.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

rt9819 ? ds9819-08 july 2013 www.richtek.com 1 ? copyright 2013 richtek technology corporation. all rights reserved. is a registered trademark of ric htek technology corporation. features z z z z z internally fixed threshold 1.2v to 5v in 0.1v step z z z z z high accuracy 1.5% z z z z z low supply current 3 a z z z z z no external components required z z z z z quick reset within 20 s z z z z z built-in recovery delay include 0ms, 55ms, 220ms, 450ms options z z z z z low functional supply voltage 0.9v z z z z z cmos push-pull output z z z z z small sc-70-3, sc-82, sot-23-3 and wdfn-6l 1.6x1.6 packages z z z z z rohs compliant and halogen free applications z computers z controllers z intelligent instruments z critical p and c power monitoring z portable/battery-powered equipment micro-power voltage detectors ordering information general description the rt9819 is a micro-power voltage detector supervising the power supply voltage level for microprocessors ( p) or digital systems. it provides internally fixed threshold levels with 0.1v per step ranging from 1.2v to 5v, which covers most digital applications. it features low supply current of 3 a. the rt9819 performs supervisory function by sending out a reset signal whenever the v dd voltage falls below a preset threshold level. this reset signal will last the whole period before v dd recovering. once v dd recovered upcrossing the threshold level, the reset signal will be released after a certain delay time. the rt9819 is provided in sc-70-3, sc-82, sot-23-3 and wdfn-6l 1.6x1.6 packages. marking information for marking information, contact our sales representative directly or through a richtek distributor located in your area. typical application circuit note : richtek products are : ` rohs compliant and compatible with the current require- ments of ipc/jedec j-std-020. ` suitable for use in snpb or pb-free soldering processes. rt9819 package type u3 : sc-70-3 v : sot-23-3 vl : sot-23-3 (l-type) y : sc-82 yr : sc-82 (r-type) qw : wdfn-6l 1.6x1.6 (w-type) lead plating system p : pb free g : green (halogen free and pb free) threshold voltage 12 : 1.2v 13 : 1.3v : 49 : 4.9v 50 : 5.0v - reset active timeout period a = 0ms (reset) b = 55ms (reset) c = 220ms (reset) d = 450ms (reset) e = 0ms (reset) f = 55ms (reset) g = 220ms (reset) h = 450ms (reset) rt9819 vdd gnd reset / reset vdd reset / reset up
rt9819 2 ds9819-08 july 2013 www.richtek.com ? copyright 2013 richtek technology corporation. all rights reserved. is a registered trademark of ric htek technology corporation. pin configurations (top view) sot-23-3 (l-type) sot-23-3 sc-70-3 sc-82 (r-type) sc-82 function block diagram functional pin description pin name pin function gnd ground. reset active low push-pull reset output. reset active high push-pull reset output vdd power input. nc no internal connection. wdfn-6l 1.6x1.6 nc nc vdd nc gnd reset/ reset 5 4 1 2 3 6 gnd 7 gnd vdd 2 3 reset/ reset gnd nc vdd 3 2 4 reset/ reset nc vdd gnd 3 2 4 reset/ reset gnd vdd 2 3 reset/ reset timer vset threshold voltage setting por power on reset cmp n mos reset / reset vdd vdd p mos gnd vdd 2 3 reset/ reset
rt9819 3 ds9819-08 july 2013 www.richtek.com ? copyright 2013 richtek technology corporation. all rights reserved. is a registered trademark of ric htek technology corporation. absolute maximum ratings (note 1) z terminal voltage (with respect to gnd) v dd ---------------------------------------------------------------------------------------------------------------------- ? 0.3v to 6v z all other inputs ------------------------------------------------------------------------------------------------------ ? 0.3v to (v dd + 0.3v) z input current, i vdd --------------------------------------------------------------------------------------------------- 20ma z power dissipation, pd @ t a = 25 c sc-70-3/sc-82 ------------------------------------------------------------------------------------------------------- 0.25w sot-23-3 -------------------------------------------------------------------------------------------------------------- 0.4w wdfn-6l 1.6x1.6 --------------------------------------------------------------------------------------------------- 1.7w z package thermal resistance (note 2) sc-70-3/sc-82, ja ------------------------------------------------------------------------------------------------- 400 c/w sot-23-3, ja --------------------------------------------------------------------------------------------------------- 250 c/w wdfn-6l 1.6x1.6, ja ---------------------------------------------------------------------------------------------- 58.5 c/w z lead temperature (soldering, 10sec.) -------------------------------------------------------------------------- 260 c z storage temperature range -------------------------------------------------------------------------------------- ? 65 c to 125 c z esd susceptibility (note 3) hbm (human body model) ---------------------------------------------------------------------------------------- 2kv mm (ma chine model) ----------------------------------------------------------------------------------------------- 200v electrical characteristics recommended operating conditions (note 4) z junction temperature range -------------------------------------------------------------------------------------- ? 40 c to 125 c z ambient temperature range -------------------------------------------------------------------------------------- ? 40 c to 85 c (v dd = 3v, t a = 25 c, unless otherwise specified) parameter symbol test conditions min typ max unit rt9819a/b/c/d 0.9 -- 6 operating v dd (v out ) range v dd rt9819e/f/g/h 1.1 -- 6 v supply current i dd v th = 3v , v dd = 4.5v -- 3 8 a reset threshold v th -- 1.2 to 5 -- v threshold voltage accuracy v th ? 1.5 -- 1.5 % threshold voltage hysteresis v hys -- 0.01 v th -- v v dd drop to reset delay t rd drop = v th ? 125mv -- 20 -- s rt9819a/e -- 0 -- ms rt9819b/f 35 55 75 ms rt9819c/g 143 220 297 ms reset active time out period rt9819d/h t rp v dd 1.02 v th 292 450 608 ms
rt9819 4 ds9819-08 july 2013 www.richtek.com ? copyright 2013 richtek technology corporation. all rights reserved. is a registered trademark of ric htek technology corporation. note 1. stresses beyond those listed ? absolute maximum ratings ? may cause permanent damage to the device. these are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. exposure to absolute maximum rating conditions may affect device reliability. note 2. ja is measured at t a = 25 c on a single-layer and four-layer test board of jedec 51. note 3. devices are esd sensitive. handling precaution is recommended. note 4. the device is not guaranteed to function outside its operating conditions. parameter symbol test conditions min typ max unit v dd < v th(min) ,i sink = 3.5ma, v th 3v -- -- 0.4 v dd < v th(min) ,i sink = 1.2ma, v th 1.8v -- -- 0.3 reset output voltage low v ol v th(min) > v dd > 1v, i sink = 0.5ma -- -- 0.3 v v dd > v th(max) , i source = 800 a, v th 3v v dd ? 1.5 -- -- v dd > v th(max) , i source = 500 a, v th 1.8v 0.8 v dd -- -- reset output voltage high v oh v dd > v th(max) , i source = 200 a, v th 1.1v 0.8 v dd -- -- v v dd > v th(max) ,i sink = 3.5ma, v th 3v -- -- 0.4 v dd > v th(max) ,i sink = 1.2ma, v th 1.8v -- -- 0.3 reset output voltage low v ol v dd > v th(max) ,i sink = 0.5ma, v th 1.2v -- -- 0.3 v 1.1v < v dd < v th(min) , i source = 200 a 0.8 v dd -- -- 1.8v < v dd < v th(min) , i source = 500 a 0.8 v dd -- -- reset output voltage high v oh 3v < v dd < v th(min) , i source = 800 a v dd ? 1.5 -- -- v
rt9819 5 ds9819-08 july 2013 www.richtek.com ? copyright 2013 richtek technology corporation. all rights reserved. is a registered trademark of ric htek technology corporation. typical operating characteristics nch driver output current vs. v ds 0 0.4 0.8 1.2 1.6 2 2.4 0 0.3 0.6 0.9 1.2 1.5 v ds (v) output current (ma) rt9819a-12 v dd = 1.1v v dd = 1v nch driver output current vs. v ds 0 10 20 30 40 50 60 00.5 11.5 22.5 33.5 v ds (v) output current (ma) rt9819c-30 v dd = 2.8v v dd = 2.5v v dd = 2v v dd = 1.5v nch driver output current vs. v ds 0 20 40 60 80 100 120 012345 v ds (v) output current (ma) rt9819a-45 v dd = 4.4v = 4v = 3.5v = 3v = 2.5v = 2v = 1.5v output voltage vs. input voltage 0 1 2 3 4 5 6 7 0123456 input voltage (v) output voltage (v) 5v 3v 2.9v rt9819a supply current vs. input voltage 0 1 2 3 4 5 6 0123456 input voltage (v) supply current (ua) rt9819a-12 80 c 25 c -30 c supply current vs. input voltage 0 1 2 3 4 0123456 input voltage (v) supply current idd (ua) rt9819c-30 80 c 25 c -30 c
rt9819 6 ds9819-08 july 2013 www.richtek.com ? copyright 2013 richtek technology corporation. all rights reserved. is a registered trademark of ric htek technology corporation. nch driver sink current vs. input voltage 0 10 20 30 40 50 012345 input voltage (v) sink current i sink (ma) rt9819a-45, v ds = 0.5v 80 c 25 c -30 c power-down reset delay vs. temperature 0 5 10 15 20 25 30 35 40 45 -50 -25 0 25 50 75 100 125 temperature power-down reset delay (us) rt9819a-45 v drop = 200mv v drop = 150mv v drop = 250mv ( c) nch driv er sink current v s. input voltage 0 10 20 30 40 00.511.522.533.5 input voltage (v) sink current i sink (ma) rt9819c-30, v ds = 0.5v 80 c 25 c -30 c power-down reset delay vs. temperature 0 5 10 15 20 25 30 35 40 45 -50 -25 0 25 50 75 100 125 temperature power-down reset delay (us) rt9819c-30 v drop = 200mv v drop = 150mv v drop = 250mv ( c) power-down reset delay vs. temperature 0 3 6 9 12 15 -50-25 0 25 50 75100125 temperature power-down reset delay (us) rt9819a-12 v drop = 200mv v drop = 150mv v drop = 250mv ( c) supply current v s. input voltage 0 1 2 3 4 0123456 input voltage (v) supply current (ua) rt9819a-45 80 c 25 c -30 c
rt9819 7 ds9819-08 july 2013 www.richtek.com ? copyright 2013 richtek technology corporation. all rights reserved. is a registered trademark of ric htek technology corporation. output delay time vs. load capacitance 0.01 0.1 1 10 100 1000 0.0001 0.0010 0.0100 0.1000 1.0000 load capacitance (uf) output delay time (ms) v th = 2.9v v th = 3.0v v th = 5.0v rt9819 pch driver output current vs. input voltage 0 5 10 15 20 25 0123456 input voltage (v) output current (ma) rt9819c-30 v ds = 2.1v v ds = 1.5v v ds = 1v v ds = 0.5v reset threshold deviation vs. temperature 1.00 2.00 3.00 4.00 5.00 6.00 -50 -25 0 25 50 75 100 125 temperature reset threshold deviation (v) 5v 1.2v 4.5v 4.2v 2.2v ( c) rt9819 power-up reset time-out vs. temperature 0 25 50 75 100 -50 -25 0 25 50 75 100 125 temperature power-up reset time-out (ms) v th = 5v v th = 4.5v rt9819a ( c) ( s) power-up reset time-out vs. temperature 0 100 200 300 400 500 -50 -25 0 25 50 75 100 125 temperature power-up reset time-out (ms) v th = 2.9v v th = 3v rt9819c ( c) nch driver output current vs. v ds 0 20 40 60 80 100 120 140 160 0123456 v ds (v) nch driver output current (ma) v dd = 6v = 5.5v = 5v = 4.5v = 4v = 3.5v rt9819g-31
rt9819 8 ds9819-08 july 2013 www.richtek.com ? copyright 2013 richtek technology corporation. all rights reserved. is a registered trademark of ric htek technology corporation. nch driver output current vs. input voltage 0 10 20 30 40 50 60 0123456 input voltage (v) nch driver output current (ma) 1 rt9819g-31 v ds = 0.5v 80 c 25 c -30 c output voltage vs. input voltage 0 1 2 3 4 5 6 7 0123456 input voltage (v) output voltage (v) rt9819g-31 power-down reset time-out vs. temperature 0 5 10 15 20 25 30 -50 -25 0 25 50 75 100 125 temperature power-down reset time-out (us ) v drop = 200mv v drop = 150mv v drop = 250mv ( c) rt9819g-31 power down reset time-out vs. temperature 0 100 200 300 400 500 -50 -25 0 25 50 75 100 125 temperature power down reset time-out (ms ) rt9819g-31 ( c)
rt9819 9 ds9819-08 july 2013 www.richtek.com ? copyright 2013 richtek technology corporation. all rights reserved. is a registered trademark of ric htek technology corporation. application information benefits of highly accurate reset threshold most p supervisor ics have reset threshold voltages between 1% and 1.5% below the value of nominal supply voltages. this ensures a reset will not occur within 1% of the nominal supply, but will occur when the supply is 1.5% below nominal.
rt9819 10 ds9819-08 july 2013 www.richtek.com ? copyright 2013 richtek technology corporation. all rights reserved. is a registered trademark of ric htek technology corporation. outline dimension a b a1 b d c e h l sc - 70 - 3 surface mount package dimensions in millimeters dimensions in inches symbol min max min max a 0.800 1.100 0.031 0.044 a1 0.000 0.100 0.000 0.004 b 1.150 1.350 0.045 0.054 b 0.150 0.400 0.006 0.016 c 1.800 2.450 0.071 0.096 d 1.800 2.250 0.071 0.089 e 1.300 0.051 h 0.080 0.260 0.003 0.010 l 0.210 0.460 0.008 0.018
rt9819 11 ds9819-08 july 2013 www.richtek.com ? copyright 2013 richtek technology corporation. all rights reserved. is a registered trademark of ric htek technology corporation. dimensions in millimeters dimensions in inches symbol min max min max a 0.800 1.100 0.031 0.043 a1 0.000 0.100 0.000 0.004 b 1.150 1.350 0.045 0.053 b 0.150 0.400 0.006 0.016 b1 0.350 0.500 0.014 0.020 c 1.800 2.450 0.071 0.096 d 1.800 2.200 0.071 0.087 e 1.300 0.051 h 0.080 0.260 0.003 0.010 l 0.200 0.460 0.008 0.018 sc - 82 surface mount package e d a c b a1 l b b1 h e
rt9819 12 ds9819-08 july 2013 www.richtek.com ? copyright 2013 richtek technology corporation. all rights reserved. is a registered trademark of ric htek technology corporation. a b a1 b d c e h l sot-23-3 surface mount package dimensions in millimeters dimensions in inches symbol min max min max a 0.889 1.295 0.035 0.051 a1 0.000 0.152 0.000 0.006 b 1.397 1.803 0.055 0.071 b 0.356 0.508 0.014 0.020 c 2.591 2.997 0.102 0.118 d 2.692 3.099 0.106 0.122 e 1.803 2.007 0.071 0.079 h 0.080 0.254 0.003 0.010 l 0.300 0.610 0.012 0.024
rt9819 13 ds9819-08 july 2013 www.richtek.com richtek technology corporation 5f, no. 20, taiyuen street, chupei city hsinchu, taiwan, r.o.c. tel: (8863)5526789 richtek products are sold by description only. richtek reserves the right to change the circuitry and/or specifications without notice at any time. customers should obtain the latest relevant information and data sheets before placing orders and should verify that such information is current and complete. richtek cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a richtek product. information furnish ed by richtek is believed to be accurate and reliable. however, no responsibility is assumed by richtek or its subsidiaries for its use; nor for any infringeme nts of patents 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 r ichtek or its subsidiaries. dimensions in millimeters dimensions in inches symbol min max min max a 0.700 0.800 0.028 0.031 a1 0.000 0.050 0.000 0.002 a3 0.175 0.250 0.007 0.010 b 0.200 0.300 0.008 0.012 d 1.550 1.650 0.061 0.065 d2 0.950 1.050 0.037 0.041 e 1.550 1.650 0.061 0.065 e2 0.550 0.650 0.022 0.026 e 0.500 0.020 l 0.190 0.290 0.007 0.011 w-type 6l dfn 1.6x1.6 package 1 1 2 2 note : the configuration of the pin #1 identifier is optional, but must be located within the zone indicated. det ail a pin #1 id and tie bar mark options

▲Up To Search▲

Price & Availability of RT9819G-12GQW

	To Download RT9819G-12GQW Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .