? ??????????????????????????????????????????????????????????????? ????????????????????? ACE306A ??????????????????????????????????? low voltage detector with built-in delay circuit ver 1.1 1 ? description the ACE306A series is a series of high-precision voltage detectors with a built-in delay time generator of fixed time. developed using cmos process. the detection voltage is fixed internally, with an accuracy of 2.0%. internal oscillator and counter timer can delay the release signal without external parts, delay times 210 ms two output forms, nmos open-drain and cmos output are available. features ? high-precision detection voltage ? 2% ? detection voltage 1.5v~6.0v (10mv steps) ? operating voltage range 0.95v~7.0v ? ultra-low current consumption 0.9 a@3.5v(typ.) ? two output forms: cmos and n-channel open-drain (active low) ? hysteresis characteristics:-v det *5%(typ.) ? delay time:210 ms(typ.) application ? memory battery back-up circuits ? power-on reset circuits ? power failure detection ? power monitor for portable equipment such as notebook computers, digital cameras, pda, and cellular phones. ? constant voltage power monitors for cameras, video equipment and communication devices ? power monitor for microcomputers and reset for cpus absolute maximum ratings (ta=25c, unless otherwise specified) parameter max unit power supply voltage(v dd ) v ss 0.3 ~ v ss 8 v output voltage(v out ) v ss 0.3 ~ v ss 8 v power dissipation(pd) 250 250 mw 500 500 mw 500 500 mw 250 250 mw operating ambient temperature(t opr ) 40 ~ 85 c storage temperature(t stg ) 40 ~ 125 c soldering temperature & time(t solder ) 260 , 10s
? ??????????????????????????????????????????????????????????????? ?????????????????????? ACE306A ??????????????????????????????????? low voltage detector with built-in delay circuit ? ver 1.1 2 packaging type sot-23-3l 3 1 2 ordering information ACE306A x xxx xx + h sot-23-3 description function 3 v dd voltage input pin 1 v out voltage detection output pin 2 v ss gnd pin detector voltage: 090?0.9v / 100?1.0v / 263?2.63v / 300?3.0v / 465?4.65v?..600?6.0v (in 0.1v step) ? pb - free halogen - free output type: n: nch c: cmos package type bm: sot-23-3l
? ??????????????????????????????????????????????????????????????? ?????????????????????? ACE306A ??????????????????????????????????? low voltage detector with built-in delay circuit ? ver 1.1 3 block diagram n channel open-drain cmos output electrical characteristics (ta=25c, unless otherwise specified) symbol parameter conditions reference data unit min. typ. max. -v det detection voltage*1 - ? v det(s) 0.98 ? v det(s) ? v det(s) 1.02 v v hys hysteresis width - 0.02 ? v det(s) 0.05 ? v det(s) 0.08 ? v det(s) v l ss current consumpti v dd=- v det + 0.5v ACE306A c/n20~26 - 1.0 3.0 a ACE306A c/n26~39 - 1.2 3.2 a ACE306A c/n39~60 - 1.5 3.5 a v dd operating voltage - 0.95 - 7 v l out output current nmos: v out =0.5 v v dd =- v det - 0.5 v ACE306A c/n20~26 3.0 13.0 - ma ACE306A c/n26~39 3.0 15.0 - ma ACE306A c/n39~60 3.0 18.0 - ma pmos v dd -v out = ACE306A c/n20~26 1.5 4.0 - ma ACE306A c/n26~39 1.5 6.0 - ma
? ??????????????????????????????????????????????????????????????? ?????????????????????? ACE306A ??????????????????????????????????? low voltage detector with built-in delay circuit ? ver 1.1 4 0.5v v dd = - v det +0.5v ACE306A c/n39~60 1.5 8.0 - ma i leak leakage current only for nmos open-drain output products, v dd =8.0 v, v out =8.0 v - 1.0 a temperature coefficient ta= ? 40c ~+85c - 120 360 ppm/c t plh delay time vin=vdet+0.5v 130 210 290 ms *1. ? vdet: actual detection voltage value, ? vdet(s): specified detection voltage value function description when a voltage higher than the release voltage (+v det ) is applied to the voltage input pin (v dd ), the voltage will gradually fall. when a voltage higher than the detect voltage(-v det ) is applied to v dd , output (v out ) will be equal to the input at v dd . note that high impedance exists at v out with the n-channel open drain configuration. if the pin is pulled up, v out t will be equal to the pull up voltage. when v dd falls below -v det , v out will be equal to the ground voltage (v ss ) level (detect state). note that this also applies to n-channel open drain configurations. when v dd falls to a level below that of the minimum operating voltage (v min ) output will become unstable. because the output pin is generally pulled up with n-channel open drain configurations, output will be equal to pull up voltage. when v dd rises above the v ss level (excepting levels lower than minimum operating voltage), v out will be equal to v ss until v dd reaches the +v det level. although v dd will rise to a level higher than +v de t , v out maintains ground voltage level via the delay circuit. following transient delay time, v dd will be output at v out . note that high impedance exists with the n-channel open drain configuration and that voltage will be dependent on pull up
? ??????????????????????????????????????????????????????????????? ?????????????????????? ACE306A ??????????????????????????????????? low voltage detector with built-in delay circuit ? ver 1.1 5 typical application circuits c:cmos output nmos open-drain: forbidden circuits v dd ACE306A cmos cpu v ss out ACE306A ACE306A
? ??????????????????????????????????????????????????????????????? ?????????????????????? ACE306A ??????????????????????????????????? low voltage detector with built-in delay circuit ? ver 1.1 6 packing information sot-23-3l symbol dimensions ln millimeters dimensions ln inches min max min max a 1.050 1.250 0.041 0.049 a1 0.000 0.100 0.000 0.004 ACE306A
? ??????????????????????????????????????????????????????????????? ?????????????????????? ACE306A ??????????????????????????????????? low voltage detector with built-in delay circuit ? ver 1.1 7 a2 1.050 1.150 0.041 0.045 b 0.300 0.500 0.012 0.020 c 0.100 0.200 0.004 0.008 d 2.820 3.020 0.111 0.119 e 1.500 1.700 0.059 0.067 e1 2.650 2.950 0.104 0.116 e 0.950(bsc) 0.037(bsc) e1 1.800 2.000 0.071 0.079 l 0.300 0.600 0.012 0.024 0 8 0 8
? ??????????????????????????????????????????????????????????????? ?????????????????????? ACE306A ??????????????????????????????????? low voltage detector with built-in delay circuit ? ver 1.1 8 notes ace does not assume any responsibility for use as cr itical components in life support devices or systems without the express written approval of the president and general counsel of ace electronics co., ltd. as sued herein: 1. life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, and shoes failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury to the user. 2. a critical component is any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. ace technology co., ltd. http://www.ace-ele.com/
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