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www.belling.com.cn ver1.1 1 high-precision low voltage detecto r bl8506 selection guide o bl8506- xx x xx outline: bl8506 is a series of high precision voltage detector with ultra low current consumption (500na typ. at vdd=3.0v). it can work at very low voltage, which makes it perfect for system reset. bl8506 is composed of high precision voltage reference, comparator, output driver and resistor array. internally preset detect voltage has a low temperature drift and requires no external trimming. two type of output, cmos and n-channel open-drain are available. bl8506 is available in sot-89-3,sot-23-3 to92, sot23-5 packages which is pb free. features o ? high-precision detection voltage o 2% ? detection voltage o 0.9v~6.0v (in 0.1v steps) ? precise hysteresis o 4% typ. ? operating voltage range o 0.7v~10v ? ultra-low current consumption o 500na typ. (at v dd ? 3.0v) ? two output forms o cmos and n-channel open-drain application o ? power monitor for portable equipment such as pda,dsc,mobile phone,notebook,mp3 ? cpu and logic circuit reset ? battery checker ? battery back-up circuit ? power failure detector pin assignment o package type o rm o sot-23-3 rn o sot-23-5 sm o sot-89-3 t o to-92 ? default ? pb free ? output type o n o nch open-drain c o cmos detector voltage o 09 ?-?- 0.9v 30 ?-?- 3.0v ?-?- 50 ?-?- 5.0v 60 ?-?- 6.0v
www.belling.com.cn ver1.1 2 bl8506 pin description : pin number sot-89-3 to-92 sot-23-3 sot-23-5 pin name function 1 3 1 1 v out voltage detection output pin 2 1 3 2 v dd voltage input pin 3 2 2 3 v ss gnd pin - - - 4 nc no connection - - - 5 nc no connection product classification : product name detector voltage output type package bl8506-xxnrm xx v nch open-drain sot-23-3 bl8506-xxnrn xx v nch open-drain sot-23-5 bl8506-xxnsm xx v nch open-drain sot-89-3 bl8506-xxnt xx v nch open-drain to-92 bl8506-xxcrm xx v cmos sot-23-3 bl8506-xxcrn xx v cmos sot-23-5 bl8506-xxcsm xx v cmos sot-89-3 bl8506-xxct xx v cmos to-92 product mark information: sot-89-3 to-92 sot-23-5 sot-23-3 example o bl8506-30n sm example o bl8506 -30c rm bl8506 n30xx c630 product no. mark bl8506-09csm bl8506-09c bl8506-20ct bl8506-20c bl8506-27csm bl8506-27c bl8506-30ct bl8506-30c ?-?- ?-?- bl8506-09nrm n609 bl8506-21nrn n621 bl8506-27crm c627 bl8506-30crm c630 ?-?- ?-?-
www.belling.com.cn ver1.1 3 bl8506 block diagram: absolute maximum ratings o input voltage range -------------------------------------------------------------------------------------0.3v~12v output voltage range-----------------------------------------------------------------------------------0.3v~12v maximum output current -----------------------------------------------------------------------------70ma maximum power dissipation -------------------------------------------------------------------------150mw ambient temperature ---------------------------------------------------------------------------------- -40~+70 c storage temperature----------------------------------------------------------------------------------- -40~125 c lead temperature and time --------------------------------------------------------------------------260 c,10s recommended work conditions o item min recommended max unit input voltage range 0.7 10 v ambient temperature -40 25 70 ?? electrical characteristics o ? bl8506-09c/nxx ? 0.9v ? (topt ? 25 ?? ,unless otherwise specified.) reference data symbol parameter conditions min. typ. max. unit -v det detector threshold 0.882 0.9 0.918 v v hys detector threshold hysteresis 0.018 0.036 0.054 v i ss current consumption v dd =2.9v 1 1.5 ua v ddh maximum operating voltage 10 v v ddl minimum operating voltage 0.5 v i out output current nch v ds =0.05v ? v dd =0.7v v ds =0.50v ? v dd =0.8v 0.01 0.05 0.05 0.50 ma n channel open-drain cmos output
www.belling.com.cn ver1.1 4 bl8506 pch v ds =-2.1v ? v dd =4.50v 1.0 2.0 ma t plh output delay time 20 us ? bl8506-27c/nxx ? 2.7v ? (topt ? 25 ?? ,unless otherwise specified.) reference data symbol parameter conditions min. typ. max. unit -v det detector threshold 2.646 2.7 2.754 v v hys detector threshold hysteresis 0.054 0.108 0.162 v i ss current consumption v dd =4.7v 0.5 1 ua v ddh maximum operating voltage 10 v v ddl minimum operating voltage 0.5 v nch v ds =0.05v ? v dd =0.70v 0.01 0.05 ma i out output current pch v ds =-2.1v ? v dd =4.50v 1.0 2.0 ma t plh output delay time 20 us ? bl8506-30c/nxx ? 3.0v ? (topt ? 25 ?? ,unless otherwise specified.) reference data symbol parameter conditions min. typ. max. unit -v det detector threshold 2.94 3.0 3.06 v v hys detector threshold hysteresis 0.060 0.12 0.18 v i ss current consumption v dd =5.0v 0.5 1 ua v ddh maximum operating voltage 10 v v ddl minimum operating voltage 0.5 v nch v ds =0.05v ? v dd =0.7v 0.01 0.05 ma i out output current pch v ds =-2.1v ? v dd =4.50v 1.0 2.0 ma t plh output delay time 20 us ? bl8506-34c/nxx ? 3.4v ? (topt ? 25 ?? ,unless otherwise specified.) reference data symbol parameter conditions min. typ. max. unit -v det detector threshold 3.332 3.4 3.468 v v hys detector threshold 0.068 0.136 0.204 v
www.belling.com.cn ver1.1 5 bl8506 hysteresis i ss current consumption v dd =5.0v 0.5 1 ua v ddh maximum operating voltage 10 v v ddl minimum operating voltage 0.5 v nch v ds =0.05v ? v dd =0.7v 0.01 0.05 ma i out output current pch v ds =-2.1v ? v dd =4.50v 1.0 2.0 ma t plh output delay time 20 us ? bl8506-44c/nxx ? 4.4v ? (topt ? 25 ?? ,unless otherwise specified.) reference data symbol parameter conditions min. typ. max. unit -v det detector threshold 4.312 4.4 4.488 v v hys detector threshold hysteresis 0.088 0.176 0.264 v i ss current consumption v dd =6.4v 0.5 1 ua v ddh maximum operating voltage 10 v v ddl minimum operating voltage 0.5 v nch v ds =0.05v ? v dd =0.7v 0.01 0.05 ma i out output current pch v ds =-2.1v ? v dd =8.0v 1.5 3.0 ma t plh output delay time 20 us
www.belling.com.cn ver1.1 6 bl8506 electrical characteristics by detector threshold detector threshold detector threshold hysteresis supply cu rrent1 supply current2 -vdet[v] vhys[v] i ss1[ua] iss2[ua] part number min. typ. max. min. ty p. max. condition typ. max. condition typ. max. bl8506-09 xxx 0.882 0.900 0.918 0.018 0.036 0.054 bl8506-10 xxx 0.980 1.000 1.020 0.020 0.040 0.060 bl8506-11 xxx 1.078 1.100 1.122 0.022 0.044 0.066 bl8506-12 xxx 1.176 1.200 1.224 0.024 0.048 0.072 bl8506-13 xxx 1.274 1.300 1.326 0.026 0.052 0.078 bl8506-14 xxx 1.372 1.400 1.428 0.028 0.056 0.084 bl8506-15 xxx 1.470 1.500 1.530 0.030 0.060 0.090 bl8506-16 xxx 1.568 1.600 1.632 0.032 0.064 0.096 bl8506-17 xxx 1.666 1.700 1.734 0.034 0.068 0.102 bl8506-18 xxx 1.764 1.800 1.836 0.036 0.072 0.108 bl8506-19 xxx 1.862 1.900 1.938 0.038 0.076 0.114 1.0 1.5 bl8506-20 xxx 1.960 2.000 2.040 0.040 0.080 0.120 bl8506-21 xxx 2.058 2.100 2.142 0.042 0.084 0.126 bl8506-22 xxx 2.156 2.200 2.244 0.044 0.088 0.132 bl8506-23 xxx 2.254 2.300 2.346 0.046 0.092 0.138 bl8506-24 xxx 2.352 2.400 2.448 0.048 0.096 0.144 bl8506-25 xxx 2.450 2.500 2.550 0.050 0.100 0.150 bl8506-26 xxx 2.548 2.600 2.652 0.052 0.104 0.156 bl8506-27 xxx 2.646 2.700 2.754 0.054 0.108 0.162 bl8506-28 xxx 2.744 2.800 2.856 0.056 0.112 0.168 bl8506-29 xxx 2.842 2.900 2.958 0.058 0.116 0.174 bl8506-30 xxx 2.940 3.000 3.060 0.060 0.120 0.180 bl8506-31 xxx 3.038 3.100 3.162 0.062 0.124 0.186 bl8506-32 xxx 3.136 3.200 3.264 0.064 0.128 0.192 bl8506-33 xxx 3.234 3.300 3.366 0.066 0.132 0.198 bl8506-34 xxx 3.332 3.400 3.468 0.068 0.136 0.204 bl8506-35 xxx 3.430 3.500 3.570 0.070 0.140 0.210 bl8506-36 xxx 3.528 3.600 3.672 0.072 0.144 0.216 bl8506-37 xxx 3.626 3.700 3.774 0.074 0.148 0.222 bl8506-38 xxx 3.724 3.800 3.876 0.076 0.152 0.228 bl8506-39 xxx 3.822 3.900 3.978 0.078 0.156 0.234 bl8506-40 xxx 3.920 4.000 4.080 0.080 0.160 0.240 bl8506-41 xxx 4.018 4.100 4.182 0.082 0.164 0.246 bl8506-42 xxx 4.116 4.200 4.284 0.084 0.168 0.252 bl8506-43 xxx 4.214 4.300 4.386 0.086 0.172 0.258 bl8506-44 xxx 4.312 4.400 4.488 0.088 0.176 0.264 bl8506-45 xxx 4.410 4.500 4.590 0.090 0.180 0.270 bl8506-46 xxx 4.508 4.600 4.692 0.092 0.184 0.276 bl8506-47 xxx 4.606 4.700 4.794 0.094 0.188 0.282 bl8506-48 xxx 4.704 4.800 4.896 0.096 0.192 0.288 bl8506-49 xxx 4.802 4.900 4.998 0.098 0.196 0.294 bl8506-50 xxx 4.900 5.000 5.100 0.100 0.200 0.300 bl8506-51 xxx 4.998 5.100 5.202 0.102 0.204 0.306 bl8506-52 xxx 5.096 5.200 5.304 0.104 0.208 0.312 bl8506-53 xxx 5.194 5.300 5.406 0.106 0.212 0.318 bl8506-54 xxx 5.292 5.400 5.508 0.108 0.216 0.324 bl8506-55 xxx 5.390 5.500 5.610 0.110 0.220 0.330 bl8506-56 xxx 5.488 5.600 5.712 0.112 0.224 0.336 bl8506-57 xxx 5.586 5.700 5.814 0.114 0.228 0.342 bl8506-58 xxx 5.684 5.800 5.916 0.116 0.232 0.348 bl8506-59 xxx 5.782 5.900 6.018 0.118 0.236 0.354 bl8506-60 xxx 5.880 6.000 6.120 0.120 0.240 0.360 vdd= (-vdet) +0.1v 0.5 1.0 vdd= (-vdet) +2v 0.5 1.0
www.belling.com.cn ver1.1 7 bl8506 output current1 output current2 output delay time minimum operating voltage detector threshold temperature coefficient iout1[ma] iout2[ma] t plh [us] v ddl [v] ? -v det / ? tppm/c condition min. typ. condition min. typ. max. typ. max. condition typ. vdd=0.85v 0.1 0.5 vdd=1.0v 0.2 1.0 nch, v ds =0.05v, v dd =0.7v 0.01 0.05 nch, v ds =0.5v v dd =1.5v 1.0 2.0 20 0.5 0.7 -40 c topt 85 c 100
www.belling.com.cn ver1.1 8 bl8506 function description: comparator high precision low temperature co -efficiency reference voltage is applied to the negative input of a comparator. input voltage, divided by resistor array of ra rb and rc, is applied to the positive input of the compar ator. output of the comparator controls a pair of nmos and pmos switches, generating t he hysteresis. output of the comparator passes a series of buffer to drive the output cmos pair. + v det ? - v det ? v hys can be calculated as follows: - v det =v ref *(1+ra/(rb+rc)) + v det =v ref *(1+(ra+rd)/rb)= v ref *(1+(ra+rc)/rb) v hys =+ v det -(- v det )= v ref *(ra+rb+rc)(1/rb-1/(rb+rc))
www.belling.com.cn ver1.1 9 bl8506 no. operation status output status i v dd > -v det output voltage is equal to the supply voltage ii v dd drops below - v det output voltage equals to gnd level iii v dd drops further below v ddl output voltage is undefined iv v dd rises above v ddl output voltage equals to gnd level v v dd rises above + v det output voltage equals to supply voltage ? v hys =(+ v det )-(- v det )
www.belling.com.cn ver1.1 10 bl8506 test circuits o ? 1 ? supply current test circuit ? 2 ? detector threshold test circuit ? 3 ? nch drive output current test circuit ? 4 ? pch drive output current test circuit
www.belling.com.cn ver1.1 11 bl8506 typical performance characteristics o 1) output voltage vs. input voltage detector threshold= 0.9v ? 25c ? 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 0.5 0.7 0.9 1.1 1.3 1.5 input voltage (v) output voltage (v) vin(hig h to low) vin(low to hi g h ) detector threshold= 0.9v ? -40c ? 0 0.2 0.4 0.6 0.8 1 1.2 1.4 0.5 0.7 0.9 1.1 1.3 1.5 input voltage (v) output voltage (v) vin( hig h to low) vin(low to hig h) detector threshold= 0.9v ? 70c ? 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 0.5 0.7 0.9 1.1 1.3 1.5 input voltage (v) output voltage (v) vin( hig h to low) vin(low to hi g h ) detector threshold=3.0v ? -40c ? 0.0 0.5 1.0 1.5 2.0 2.5 3.0 2.6 2.8 3.0 3.2 3.4 input voltage (v) output voltage (v) vin(h igh t o low) vin(l ow to hig h) detector threshold=3.0v ? 25c ? 0.0 0.5 1.0 1.5 2.0 2.5 3.0 2.6 2.8 3.0 3.2 3.4 input voltage (v) output voltage (v) vin( hi gh to low) vin(lo w to hig h) detector threshold=3.0v ? 70c ? 0.0 0.5 1.0 1.5 2.0 2.5 3.0 2.6 2.8 3.0 3.2 3.4 input voltage (v) output voltage (v) vin( hig h to low) vin(lo w to hig h) detector threshold=2.7v ? -40c ? 0.0 0.5 1.0 1.5 2.0 2.5 3.0 2.3 2.5 2.7 2.9 3.1 input voltage (v) output voltage (v) vin(hig h to low) vin(low to hig h) detector threshold=2.7v ? 25c ? 0.0 0.5 1.0 1.5 2.0 2.5 3.0 2.3 2.5 2.7 2.9 3.1 input voltage (v) output voltage (v) vin( hig h to low) vin(low t o hig h) detector threshold=2.7v ? 70c ? 0.0 0.5 1.0 1.5 2.0 2.5 3.0 2.3 2.5 2.7 2.9 3.1 input voltage (v) output voltage (v) vin(hig h to low) vin(low t o hig h)
www.belling.com.cn ver1.1 12 bl8506 2) supply current vs. input voltage detector threshold=4.4v ? -40c ? 0.0 1.0 2.0 3.0 4.0 4.0 4.2 4.4 4.6 4.8 input voltage (v) output voltage (v) vin(hi g h to low) vin(l o w to hig h) detector threshold=4.4v ? 25c ? 0.0 1.0 2.0 3.0 4.0 4.0 4.2 4.4 4.6 4.8 input voltage(v) output voltage (v) vin(hi g h to low) vin(lo w to hig h) detector threshold=4.4v ? 70c ? 0.0 1.0 2.0 3.0 4.0 4.0 4.2 4.4 4.6 4.8 input voltage (v) output voltage (v) vin(hi g h to low) vin(l o w to hig h) detector threshold= 0.9v 1.e-08 1.e-07 1.e-06 1.e-05 0123456 input voltage (v) supply current(a) -40oc 25oc 70oc detector threshold=2.7v 1.e-08 1.e-07 1.e-06 1.e-05 0123456 input voltage (v) supply current (a) -40o c 25o c 70o c detector threshold=3.0v 1.e-08 1.e-07 1.e-06 1.e-05 0123456 input voltage (v) supply current(a) -40oc 25oc 70oc detector threshold=4.4v 1.e-08 1.e-07 1.e-06 1.e-05 0123456 input voltage (v) supply current (a) -40o c 25o c 70o c
www.belling.com.cn ver1.1 13 bl8506 3) detector threshold hysteresis vs. temperature detector threshold=3.0 v 2.90 2.92 2.94 2.96 2.98 3.00 3.02 3.04 -50-30-101030507090 temperature(c) detector threshold(v) detector threshold= 0.9v 0.85 0.86 0.87 0.88 0.89 0.90 0.91 0.92 0.93 0.94 0.95 -50 -30 -10 10 30 50 70 90 temperature (c) detector threshold (v) detector threshold=4.4v 4.30 4.32 4.34 4.36 4.38 4.40 4.42 4.44 4.46 4.48 4.50 -50 -30 -10 10 30 50 70 90 temperature(c) detector threshold(v) detector threshold=2.7v 2.54 2.58 2.62 2.66 2.70 2.74 2.78 -50-30-101030507090 temperature(c) detector threshold(v)
www.belling.com.cn ver1.1 14 bl8506 4 ? nch driver output current vs. v ds bl8506-09cxx 0.00e+00 1.00e-04 2.00e-04 3.00e-04 4.00e-04 5.00e-04 6.00e-04 7.00e-04 8.00e-04 0.00 0.20 0.40 0.60 0.80 vds (v) output current ? a) vdd=0.7v vdd=0.8v bl8506-27cxx 0.00e+00 2.00e-03 4.00e-03 6.00e-03 8.00e-03 1.00e-02 1.20e-02 0.00 0.50 1.00 1.50 2.00 2.50 vds (v) output current ? a) vdd=1.0v vdd=2.0v bl8506-30cxx 0.00e+00 2.00e-03 4.00e-03 6.00e-03 8.00e-03 1.00e-02 1.20e-02 0.00 0.50 1.00 1.50 2.00 2.50 vds (v) output current ? a) vdd=1.0v vdd=2.0v bl8506-44cxx 0.00e+00 5.00e-03 1.00e-02 1.50e-02 2.00e-02 2.50e-02 0.00 1.00 2.00 3.00 4.00 vds (v) output current ? a) vdd=1.0v vdd=2.0v vdd=3.0v
www.belling.com.cn ver1.1 15 bl8506 5 ? nch driver output current vs. input voltage detector threshold=2.7v 0.e+00 4.e-03 8.e-03 1.e-02 0123 input voltage vin (v) output current iout (a) -40oc 25oc 75oc detector threshold=3.0v 0.e+00 4.e-03 8.e-03 1.e-02 0123 input voltage vin (v) output current iout (a) -40oc 25oc 75oc 6 ? pch driver output current vs. input current detector threshold= 0.9v 0.0 2.0 4.0 6.0 8.0 02468 input voltage vin ? v ? output current iout(ma) vds=0.5v vds=0.7v detector threshold= 2.7v 0.0 5.0 10.0 15.0 20.0 01234567 input voltage vin ? v ? output current iout ? ma ? vds=0.5v vds=1.0v vds=1.5v vds=2.0v detector threshold= 4.4v 0.0 5.0 10.0 15.0 20.0 25.0 0246810 input voltage vin ? v ? output current iout ? ma ? vds=0.5v vds=1.0v vds=1.5v vds=2.0v
www.belling.com.cn ver1.1 16 bl8506 typical applications o note o 1. r 0 is unnecessary for cmos output products. 2. the value of r 0 need to be selected in different application, typical value is 470k |?

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