rev. a information furnished by analog devices is believed to be accurate and reliable. however, no responsibility is assumed by analog devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. no license is granted by implication or otherwise under any patent or patent rights of analog devices. a ADM6315 one technology way, p.o. box 9106, norwood, ma 02062-9106, u.s.a. tel: 781/329-470 0 www.analog.com fax: 781/326-8703 ? analog devices, inc., 2001 open-drain microprocessor supervisory circuit in 4-lead sot-143 functional block diagram v ref debounce reset circuitry ADM6315 v cc mr gnd reset features superior upgrade for max6315 specified over temperature low power consumption (5 a typ) precision voltage monitor of voltages from 2.5 v to 5 v at 100 mv increments reset assertion down to v cc > 1 v built-in manual reset pin compatible with the adm811 applications microprocessor systems controllers intelligent instruments automotive systems safety systems portable instruments ADM6315 mr v cc reset gnd reset gnd p system 10k system power figure 1. typical operating circuit general description the ADM6315 is a reliable voltage monitoring device that is suitable for use in most voltage monitoring applications. the ADM6315 is designed to monitor as little as a 1.8% degra- dation of a power supply voltage. voltages that can be moni- tored by the ADM6315 are all voltages (at 100 mv increments) from 2.5 v to 5 v. included in this circuit is a debounced manual reset input. reset can be activated using an ordinary switch (pulling mr low), by a low input from another digital device, or by a degra- dation of the supply voltage. the manual reset function is very useful, especially if the circuit in which the ADM6315 is operat- ing enters into a state that can only be detected by the user. allowing the user to manually reset a system can reduce the damage or danger that could otherwise be caused by an out of control or locked-up system. the ADM6315 comes in a cost and space efficient sot-143 package.
rev. a C2C ADM6315?pecifications (v cc = full operating range, t a = t min to t max , v cc typ = 5 v unless otherwise noted.) p arameter min typ max unit test conditions/comments supply operating voltage 1.0 5.5 v t a = 0 c to 70 c v cc supply current 5 12 av cc = 5.5 v (no load) 412 av cc = 3.6 v (no load) reset voltage threshold (v th ) * v th ?1.8% v th v th + 1.8% v t a = 25 c v th ?2.5% v th + 2.5% v t a = 0 c to 70 c reset threshold temperature coefficient 60 ppm/ c v cc to reset delay 35 sv cc = falling at 1 mv/ s reset active timeout period 1 1.4 2.6 ms ADM6315xxd1 20 28 53 ms ADM6315xxd2 140 200 370 ms ADM6315xxd3 1120 1570 2960 ms ADM6315xxd4 manual reset input threshold 0.8 v v th > 4.0 v (v il ) 2.4 v v th > 4.0 v (v ih ) 0.3 v cc vv th < 4.0 v (v il ) 0.7 v cc vv th < 4.0 v (v ih ) minimum input pulse 1 s glitch rejection 100 ns to reset delay 500 ns pull-up resistance 32 63 100 k ? reset output output voltage 0.4 v v cc > 4.25 v, i sink = 3.2 ma 0.3 v v cc > 2.5 v, i sink = 1.2 ma 0.3 v v cc > 1 v, i sink = 80 ma output leakage current 1 av cc > v th , reset deasserted * the ADM6315 is available with preset reset threshold values from 2.5 v to 5 v at 100 mv increments. specifications subject to change without notice.
rev. a ADM6315 C3C absolute maximum ratings * (t a = 25 c unless otherwise noted) terminal voltage (with respect to ground) v cc . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ?.3 v to +6 v all other inputs . . . . . . . . . . . . . . . . ?.3 v to v cc + 0.3 v input current v cc . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 ma output current reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 ma power dissipation (t a = 70 c) rt-4, sot-143 derate by 4 mw/ c above 70 c . . . . . . . . . . . . . 320 mw ja thermal impedance . . . . . . . . . . . . . . . . . . . . 330 c/w operating temperature range . . . . . . . . . . . ?0 c to +85 c storage temperature range . . . . . . . . . . . . ?5 c to +160 c lead temperature (soldering, 10 secs) . . . . . . . . . . . . 300 c vapor phase (60 sec) . . . . . . . . . . . . . . . . . . . . . . . . 215 c infrared (15 sec) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 220 c esd rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.5 kv * stresses above those listed under absolute maximum ratings may cause perma- nent damage to the device. this is a stress rating only; functional operation of the device at these or any other conditions above those listed in the operational sections of this specification is not implied. exposure to absolute maximum ratings for extended periods of time may affect device reliability. pin configuration top view (not to scale) gnd reset v cc ADM6315 1 23 4 mr pin function descriptions pin mnemonic function 1 gnd 0 v. ground reference for all signals. 2 reset active low logic output. reset remains low while v cc is below the reset threshold or when mr is low; reset then remains low for either 1 ms (min), 20 ms (min), 140 ms (min), or 1120 ms (min) after v cc rises above the reset threshold and mr is high. 3 mr manual reset. this active low debounced input will ignore input pulses of 100 ns (typical) and is guara nteed to accept input pulses of greater than 1 s. leave floating when not used. 4v cc monitored supply voltage ordering guide temperature package package model range description option ADM6315?xxxxxx-xx * ?0 c to +85 c plastic surface mount sot-143 * refer to tables i to iv.
rev. a ADM6315 C4C ?ypical performance characteristics temperature ? c 10 4 0 ?0 i dd ? a 6 2 8 ?0 0 20 40 60 80 100 125 v cc = 3 v cc = 5.5 v cc = 1 tpc 1. supply current vs. temperature temperature c 0 40 power-down reset delay s 50 20 0 20 40 60 80 100 125 100 150 200 250 300 350 400 450 v od = 20mv v od = 125mv v od = 200mv tpc 2. power-down reset delay vs. temperature temperature c 0.94 40 normalized reset timeout ms 20 0 20 40 60 80 100 125 0.96 0.98 1.00 1.02 1.04 1.06 tpc 3. normalized reset timeout period vs. temperature (v cc rising) reset comparator overdrive, v th v cc mv 300 100 0 4 maximum transient duration s 8 20 60 100 400 800 400 200 0 600 500 100 700 800 1200 1600 tpc 4. maximum transient duration vs. reset comparator overdrive temperature c 0.995 40 normalized threshold v 20 0 20 40 60 80 100 125 1.000 1.005 0.990 tpc 5. normalized reset threshold vs. temperature (v cc falling) supply voltage v 0 0 5 supply current a 1234 2 12 4 6 8 10 40 c +25 c +85 c tpc 6. supply current vs. supply voltage
rev. a ADM6315 C5C interfacing to other devices output the ADM6315 series is designed to integrate with as many devices as possible. one feature of the ADM6315 is the reset open drain output, which can sink current from sources with a voltage greater than the v cc of the ADM6315 input, making it suitable for use in more diverse applications. the benefits of a very accurate reset threshold because the ADM6315 series can operate effectively even when there are large degradations of the supply voltages (due to an accurate internal voltage reference circuit), the possibility of a malfunction during a power failure is greatly reduced. v cc v cc trip-point(max) v cc trip-point v cc to reset delay rst v cc trip-point (min) vol figure 2. v cc power-down/brownout timing diagram detailed description the ADM6315 is designed to protect the integrity of a systems operation by ensuring the proper operation of the system during power-up, power-down and brownout conditions. when the ADM6315 is powered-up (depending on the selected reset active timeout), the reset output of the ADM6315 will remain low for a period typically equalling the reset active timeout period. this is designed to give the system time to power-up correctly and for the power supply to stabilize before any devices are brought out of reset and allowed to begin executing instructions. initializing a system in this way provides a more reliable startup for microprocessor systems. when a brownout condition occurs (assuming v cc is falling at 1 mv/ s), the ADM6315 will produce a reset in typically 35 s. producing a reset this fast means that the entire system can be reset together before any part of the system? voltage falls below its recommended operating voltage. this can avoid dangerous and/or erroneous operation of a microprocessor-based system. manual reset input the ADM6315 also provides an additional input, mr . this input can be used either as a means for the system operator to manually reset the system via a switch or for a digital circuit to reset the system. the mr input will (typical) ignore negative going pulses faster than 100 ns and is guaranteed to accept any negative going input pulse of a duration greater than or equal to 1 s. if mr is connected to long cables or used in a noisy environment, then placing a 1 f decoupling capacitor between the mr input and ground will further improve the glitch immunity of the ADM6315. v cc trip-point (min) v cc trip-point (max) v cc trip-point reset active timeout rst v cc figure 3. v cc power-up timing diagram transient immunity as well as being an accurate reset circuit, the ADM6315 has good immunity to negative going transients (tpc 4). because of this characteristic, the ADM6315 is suitable for use in noisy environments. tpc 4 shows the reset comparator overdrive (the maximum magnitude of negative going pulses with respect to the typical reset threshold) versus pulse duration, without causing a reset.
rev. a ADM6315 C6C table ii. min trip- timeout model * point (ms) brand ADM6315-50d2art-rl7 5.00 20 mez ADM6315-50d2art-rl 5.00 20 mez ADM6315-49d2art-rl7 4.90 20 mey ADM6315-49d2art-rl 4.90 20 mey ADM6315-48d2art-rl7 4.80 20 mex ADM6315-48d2art-rl 4.80 20 mex ADM6315-47d2art-rl7 4.70 20 mew ADM6315-47d2art-rl 4.70 20 mew ADM6315-46d2art-rl7 4.63 20 mev ADM6315-46d2art-rl 4.63 20 mev ADM6315-45d2art-rl7 4.50 20 meu ADM6315-45d2art-rl 4.50 20 meu ADM6315-44d2art-rl7 4.39 20 met ADM6315-44d2art-rl 4.39 20 met ADM6315-43d2art-rl7 4.30 20 mes ADM6315-43d2art-rl 4.30 20 mes ADM6315-42d2art-rl7 4.20 20 mer ADM6315-42d2art-rl 4.20 20 mer ADM6315-41d2art-rl7 4.10 20 meq ADM6315-41d2art-rl 4.10 20 meq ADM6315-40d2art-rl7 4.00 20 mep ADM6315-40d2art-rl 4.00 20 mep ADM6315-39d2art-rl7 3.90 20 meo ADM6315-39d2art-rl 3.90 20 meo ADM6315-38d2art-rl7 3.80 20 men ADM6315-38d2art-rl 3.80 20 men ADM6315-37d2art-rl7 3.70 20 mem ADM6315-37d2art-rl 3.70 20 mem ADM6315-36d2art-rl7 3.60 20 mel ADM6315-36d2art-rl 3.60 20 mel ADM6315-35d2art-rl7 3.50 20 mek ADM6315-35d2art-rl 3.50 20 mek ADM6315-34d2art-rl7 3.40 20 mej ADM6315-34d2art-rl 3.40 20 mej ADM6315-33d2art-rl7 3.30 20 mei ADM6315-33d2art-rl 3.30 20 mei ADM6315-32d2art-rl7 3.20 20 meh ADM6315-32d2art-rl 3.20 20 meh ADM6315-31d2art-rl7 3.08 20 meg ADM6315-31d2art-rl 3.08 20 meg ADM6315-30d2art-rl7 3.00 20 mef ADM6315-30d2art-rl 3.00 20 mef ADM6315-29d2art-rl7 2.93 20 mee ADM6315-29d2art-rl 2.93 20 mee ADM6315-28d2art-rl7 2.80 20 med ADM6315-28d2art-rl 2.80 20 med ADM6315-27d2art-rl7 2.70 20 mec ADM6315-27d2art-rl 2.70 20 mec ADM6315-26d2art-rl7 2.63 20 meb ADM6315-26d2art-rl 2.63 20 meb ADM6315-25d2art-rl7 2.50 20 mea ADM6315-25d2art-rl 2.50 20 mea table i. min trip- timeout model * point (ms) brand ADM6315-50d1art-rl7 5.00 1 mdz ADM6315-50d1art-rl 5.00 1 mdz ADM6315-49d1art-rl7 4.90 1 mdy ADM6315-49d1art-rl 4.90 1 mdy ADM6315-48d1art-rl7 4.80 1 mdx ADM6315-48d1art-rl 4.80 1 mdx ADM6315-47d1art-rl7 4.70 1 mdw ADM6315-47d1art-rl 4.70 1 mdw ADM6315-46d1art-rl7 4.63 1 mdv ADM6315-46d1art-rl 4.63 1 mdv ADM6315-45d1art-rl7 4.50 1 mdu ADM6315-45d1art-rl 4.50 1 mdu ADM6315-44d1art-rl7 4.39 1 mdt ADM6315-44d1art-rl 4.39 1 mdt ADM6315-43d1art-rl7 4.30 1 mds ADM6315-43d1art-rl 4.30 1 mds ADM6315-42d1art-rl7 4.20 1 mdr ADM6315-42d1art-rl 4.20 1 mdr ADM6315-41d1art-rl7 4.10 1 mdq ADM6315-41d1art-rl 4.10 1 mdq ADM6315-40d1art-rl7 4.00 1 mdp ADM6315-40d1art-rl 4.00 1 mdp ADM6315-39d1art-rl7 3.90 1 mdo ADM6315-39d1art-rl 3.90 1 mdo ADM6315-38d1art-rl7 3.80 1 mdn ADM6315-38d1art-rl 3.80 1 mdn ADM6315-37d1art-rl7 3.70 1 mdm ADM6315-37d1art-rl 3.70 1 mdm ADM6315-36d1art-rl7 3.60 1 mdl ADM6315-36d1art-rl 3.60 1 mdl ADM6315-35d1art-rl7 3.50 1 mdk ADM6315-35d1art-rl 3.50 1 mdk ADM6315-34d1art-rl7 3.40 1 mdj ADM6315-34d1art-rl 3.40 1 mdj ADM6315-33d1art-rl7 3.30 1 mdi ADM6315-33d1art-rl 3.30 1 mdi ADM6315-32d1art-rl7 3.20 1 mdh ADM6315-32d1art-rl 3.20 1 mdh ADM6315-31d1art-rl7 3.08 1 mdg ADM6315-31d1art-rl 3.08 1 mdg ADM6315-30d1art-rl7 3.00 1 mdf ADM6315-30d1art-rl 3.00 1 mdf ADM6315-29d1art-rl7 2.93 1 mde ADM6315-29d1art-rl 2.93 1 mde ADM6315-28d1art-rl7 2.80 1 mdd ADM6315-28d1art-rl 2.80 1 mdd ADM6315-27d1art-rl7 2.70 1 mdc ADM6315-27d1art-rl 2.70 1 mdc ADM6315-26d1art-rl7 2.63 1 mdb ADM6315-26d1art-rl 2.63 1 mdb ADM6315-25d1art-rl7 2.50 1 mda ADM6315-25d1art-rl 2.50 1 mda notes ADM6315-xxxxxxx-rl7 are in reels of 3,000 pieces. ADM6315-xxxxxxx-rl are in reels of 10,000 pieces. * only available in reels.
rev. a ADM6315 C7C table iii. min trip- timeout model * point (ms) brand ADM6315-50d3art-rl7 5.00 140 mfz ADM6315-50d3art-rl 5.00 140 mfz ADM6315-49d3art-rl7 4.90 140 mfy ADM6315-49d3art-rl 4.90 140 mfy ADM6315-48d3art-rl7 4.80 140 mfx ADM6315-48d3art-rl 4.80 140 mfx ADM6315-47d3art-rl7 4.70 140 mfw ADM6315-47d3art-rl 4.70 140 mfw ADM6315-46d3art-rl7 4.63 140 mfv ADM6315-46d3art-rl 4.63 140 mfv ADM6315-45d3art-rl7 4.50 140 mfu ADM6315-45d3art-rl 4.50 140 mfu ADM6315-44d3art-rl7 4.39 140 mft ADM6315-44d3art-rl 4.39 140 mft ADM6315-43d3art-rl7 4.30 140 mfs ADM6315-43d3art-rl 4.30 140 mfs ADM6315-42d3art-rl7 4.20 140 mfr ADM6315-42d3art-rl 4.20 140 mfr ADM6315-41d3art-rl7 4.10 140 mfq ADM6315-41d3art-rl 4.10 140 mfq ADM6315-40d3art-rl7 4.00 140 mfp ADM6315-40d3art-rl 4.00 140 mfp ADM6315-39d3art-rl7 3.90 140 mfo ADM6315-39d3art-rl 3.90 140 mfo ADM6315-38d3art-rl7 3.80 140 mfn ADM6315-38d3art-rl 3.80 140 mfn ADM6315-37d3art-rl7 3.70 140 mfm ADM6315-37d3art-rl 3.70 140 mfm ADM6315-36d3art-rl7 3.60 140 mfl ADM6315-36d3art-rl 3.60 140 mfl ADM6315-35d3art-rl7 3.50 140 mfk ADM6315-35d3art-rl 3.50 140 mfk ADM6315-34d3art-rl7 3.40 140 mfj ADM6315-34d3art-rl 3.40 140 mfj ADM6315-33d3art-rl7 3.30 140 mfi ADM6315-33d3art-rl 3.30 140 mfi ADM6315-32d3art-rl7 3.20 140 mfh ADM6315-32d3art-rl 3.20 140 mfh ADM6315-31d3art-rl7 3.08 140 mfg ADM6315-31d3art-rl 3.08 140 mfg ADM6315-30d3art-rl7 3.00 140 mff ADM6315-30d3art-rl 3.00 140 mff ADM6315-29d3art-rl7 2.93 140 mfe ADM6315-29d3art-rl 2.93 140 mfe ADM6315-28d3art-rl7 2.80 140 mfd ADM6315-28d3art-rl 2.80 140 mfd ADM6315-27d3art-rl7 2.70 140 mfc ADM6315-27d3art-rl 2.70 140 mfc ADM6315-26d3art-rl7 2.63 140 mfb ADM6315-26d3art-rl 2.63 140 mfb ADM6315-25d3art-rl7 2.50 140 mfa ADM6315-25d3art-rl 2.50 140 mfa table iv. min trip- timeout model * point (ms) brand ADM6315-50d4art-rl 5.00 1120 mgz ADM6315-50d4art-rl7 5.00 1120 mgz ADM6315-49d4art-rl 4.90 1120 mgy ADM6315-49d4art-rl7 4.90 1120 mgy ADM6315-48d4art-rl 4.80 1120 mgx ADM6315-48d4art-rl7 4.80 1120 mgx ADM6315-47d4art-rl 4.70 1120 mgw ADM6315-47d4art-rl7 4.70 1120 mgw ADM6315-46d4art-rl 4.63 1120 mgv ADM6315-46d4art-rl7 4.63 1120 mgv ADM6315-45d4art-rl 4.50 1120 mgu ADM6315-45d4art-rl7 4.50 1120 mgu ADM6315-44d4art-rl 4.39 1120 mgt ADM6315-44d4art-rl7 4.39 1120 mgt ADM6315-43d4art-rl 4.30 1120 mgs ADM6315-43d4art-rl7 4.30 1120 mgs ADM6315-42d4art-rl 4.20 1120 mgr ADM6315-42d4art-rl7 4.20 1120 mgr ADM6315-41d4art-rl 4.10 1120 mgq ADM6315-41d4art-rl7 4.10 1120 mgq ADM6315-40d4art-rl 4.00 1120 mgp ADM6315-40d4art-rl7 4.00 1120 mgp ADM6315-39d4art-rl 3.90 1120 mgo ADM6315-39d4art-rl7 3.90 1120 mgo ADM6315-38d4art-rl 3.80 1120 mgn ADM6315-38d4art-rl7 3.80 1120 mgn ADM6315-37d4art-rl 3.70 1120 mgm ADM6315-37d4art-rl7 3.70 1120 mgm ADM6315-36d4art-rl 3.60 1120 mgl ADM6315-36d4art-rl7 3.60 1120 mgl ADM6315-35d4art-rl 3.50 1120 mgk ADM6315-35d4art-rl7 3.50 1120 mgk ADM6315-34d4art-rl 3.40 1120 mgj ADM6315-34d4art-rl7 3.40 1120 mgj ADM6315-33d4art-rl 3.30 1120 mgi ADM6315-33d4art-rl7 3.30 1120 mgi ADM6315-32d4art-rl 3.20 1120 mgh ADM6315-32d4art-rl7 3.20 1120 mgh ADM6315-31d4art-rl 3.08 1120 mgg ADM6315-31d4art-rl7 3.08 1120 mgg ADM6315-30d4art-rl 3.00 1120 mgf ADM6315-30d4art-rl7 3.00 1120 mgf ADM6315-29d4art-rl 2.93 1120 mge ADM6315-29d4art-rl7 2.93 1120 mge ADM6315-28d4art-rl 2.80 1120 mgd ADM6315-28d4art-rl7 2.80 1120 mgd ADM6315-27d4art-rl 2.70 1120 mgc ADM6315-27d4art-rl7 2.70 1120 mgc ADM6315-26d4art-rl 2.63 1120 mgb ADM6315-26d4art-rl7 2.63 1120 mgb ADM6315-25d4art-rl 2.50 1120 mga ADM6315-25d4art-rl7 2.50 1120 mga notes all parts in bold are ex-stock. consult factory for availability of orders. ADM6315-xxxxxxx-rl7 are in reels of 3,000 pieces. ADM6315-xxxxxxx-rl are in reels of 10,000 pieces. * only available in reels.
rev. a ADM6315 C8C c00081C0C10/01(a) printed in u.s.a. outline dimensions dimensions shown in inches and (mm). 4-lead plastic surface mount package (sot-143) 0.037 (0.94) 0.030 (0.77) seating plane 0.021 (0.54) 0.015 (0.38) 0.004 (0.10) 0.001 (0.03) 7 0.120 (3.05) 0.105 (2.67) 0.040 (1.02) 0.031 (0.79) pin 1 0.079 (2.00) 0.071 (1.80) 1 2 3 4 0.055 (1.40) 0.047 (1.20) 0.098 (2.50) 0.083 (2.10) 0.080 (2.03) 0.070 (1.78) 8 0 0.010 (0.25) 0.005 (0.13) 0.0059 (0.089) 0.0035 (0.15) revision history location page data sheet changed from rev. 0 to rev. a. edits to table iii . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 edits to table iv . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
|
