r3111x series low input voltage detector no.ek-071-091101 cmos voltage detector the r3111x series are cmos-based voltage detector ics that can operate at low voltage. r3111x is a simple voltage detector without an internal delay circuit. features ? supply current (i ss1 ) typ. 1 a (v dd =-v det +2v, r3111x15x) ? operating voltage range (v dd ) 0.7v to 10.0v (topt=25 c) ? detector threshold range (-v det ) 0.9v to 6.0v (internally fixed) ? reset signal "l" (a and c versions) "h" (b version) ? detector threshold accuracy 2% ? temp. coeff. of detector threshold typ. 100ppm/ c ? two output types nch. open drain and cmos ? packages son1612-6, sc-82ab, sc-88a, sot-23-3,sot-23-5, sot-89, to-92 block diagrams r3111xxxxa (nch. open drain "l" output) v dd out gnd vref r3111xxxxb (nch. open drain "h" output) v dd out gnd vref r3111xxxxc (cmos "l" output) v dd out gnd vref selection guides timing chart package quantity per reel part no. son1612-6 4,000 pcs r3111d . xx . 1 . ? -tr-f sc-82ab 3,000 pcs r3111q . xx . 1 . ? -tr-f sc-88a 3,000 pcs r3111q . xx . 2 . ? -tr-f sot-23-3 3,000 pcs r3111n . xx . 2 . ? -tr-f sot-23-5 3,000 pcs r3111n . xx . 1 . ? -tr-f sot-89 1,000 pcs r3111h . xx . 1 . ? -t1-f to-92 2,500 pcs r3111e . xx . 1 . ? -tz-f . xx . : specify the detector threshold within the range 0.9v ( . 09 . ) to 6.0v ( . 60 . ) in 0.1v steps. . ? : select the output type from ( . a . ) nch. open drain "l" output, ( . b . ) nch. open drain "h" output or ( . c . ) cmos "l" output. hysteresis t plh t plh t plh gnd gnd v ddl - v det +v det detector threshold minimum operating voltage pull-up voltage supply voltage (v dd ) output voltage (v out ) r3111xxxxa r3111xxxxb r3111xxxxc released voltage hysteresis hysteresis packages (top view) son1612-6 sc-82ab sc-88a so t-23-3 sot-23-5 sot-89 to-92 1 2 3 6 5 4 1 2 4 3 1 3 5 4 2 12 3 13 54 2 1 2 3 123 1 out 2 v dd 3 gnd 4 nc 5 v dd 6 nc 1 out 2 v dd 3 nc 4 gnd 1 out 2 nc 3 v dd 4 nc 5 gnd 1out 2 gnd 3v dd 1out 2v dd 3 gnd 4 nc 5 nc 1 out 2 v dd 3 gnd 1v dd 2 gnd 3out applications ? microcontroller and logic circuit reset ? battery checker ? window comparator ? wave shaping circuit ? battery back-up circuit ? power failure detector
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- 5 % & m f d u s p o j d % f w j d f t $ p n q b o z ricoh presented with the japan management quality award for 1999 . ricoh continually strives to promote customer satisfaction, and shares the achievements of its management quality improvement program with people and society. ricoh awarded iso 14001 certification. the ricoh group was awarded iso 14001 certification, which is an international standard for environmental management systems, at both its domestic and overseas production facilities. our current aim is to obtain iso 14001 certification for all of our business offices. ricoh completed the organization of the lead-free production for all of our products. after apr. 1, 2006, we will ship out the lead free products only. thus, all products that will be shipped from now on comply with rohs directive.
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