?2002 fairchild semiconductor corporation www.fairchildsemi.com rev. 1.0.3 features ? detecting against error operations at the power on/off. ? resetting function for the low voltage microprocessor. ? checking low battery description the ka75250/ka75270/ka75290/ka75310/ka75330/ ka75360/ka75390/ka75420/ka75450 prevents the error of system from supply voltage below normal voltage level at the time the power on and instantaneous power off in systems. internal block diagram input 1:to-92 3:sot-89 gnd 2:to-92 2:sot-89 out 3:to-92 1:sot-89 v ref input 1:to-92 3:sot-89 gnd 2:to-92 2:sot-89 out 3:to-92 1:sot-89 v ref 1 2 3 ka75xxx voltage detector to-92 1 1. input 2. gnd 3. output sot-89 1
ka75xxx 2 absolute maximum rating (t a =25 c) electrical characteristics (t a =25 c) characteristic symbol value unit supply voltage vcc 0.3 ~ +15.0 v detecting voltage v det 2.5/2.7/2.9/3.1 3.3/3.6/3.9/4.2/4.5 v hysteresis voltage v hys 50 mv operating temperature t opr -25 ~ +85 c storage temperature t stg -50 ~ +150 c power dissipation to-92 sot-89 p d 200 500 mw detecting voltage temperature coefficient ? v det / ? tr l = 200 ? , +0.01 %/ c characteristic symbol test conditions min typ max unit detecting voltage v det ka75250 ka75270 ka75290 ka75310 ka75330 ka75360 ka75390 ka75420 ka75450 2.35 2.55 2.75 2.95 3.15 3.45 3.75 4.05 4.35 2.5 2.7 2.9 3.1 3.3 3.6 3.9 4.2 4.5 2.65 2.85 3.05 3.25 3.45 3.75 4.05 4.35 4.65 v low output voltage v ol r l = 200 ? --0.4v output leakage current i lkg v cc = 15v - - 0.1 ua hysteresis voltage v hys r l = 200 ? 30 50 100 mv detecting voltage temperature coefficient ? v det / ? tr l = 200 ? - 0.01 - %/ c circuit current(at on time) i ccl v cc = v det(min) -0.05v - 300 500 ua circuit current(at off time) i cch v cc = 5.25v - 30 50 ua threshold operating voltage v th(opr) r l = 200 ? , v ol 0.4v - 0.8 1.0 v " l" transmission delay time t ol r l = 1.0k ? , c l = 100pf 0.6 10 - us " h" transmission delay time t oh r l = 1.0k ? , c l = 100pf - 15 20 us output current (at on time) i oli v cc = v det(min) -0.05v, t a = 25 c 10 20 30 ma output current (at on time) i olii v cc = v det(min) - 0.05v t a = -25 ~ +85 c 81630ma r l = 200 ? v ol 0.4v
ka75xxx 3 test circuit 1. test circuit 2. test circuit 3. ka75xxx input 10u 10v gnd output a1 m + a2 v1 ka75xxx input 10u 10v gnd output a1 m + + a2 v1 0.1u 50v 10u 50v + r l 5v input pulse ka75xxx input gnd output 0.1u 50v 10u 50v + + r l 5v input pulse ka75xxx input gnd output v cc r l led ka75xxx input gnd output v cc r l led ka75xxx input gnd output
ka75xxx 4 application circuit v cc r l ka75xxx input gnd output vcc cpu gnd reset v cc r l ka75xxx input gnd output vcc cpu gnd reset
ka75xxx 5 mechanical dimensions package dimensions in millimeters to-92 0.46 0.10 1.27typ (r2.29) 3.86max [1.27 0.20 ] 1.27typ [1.27 0.20 ] 3.60 0.20 14.47 0.40 1.02 0.10 (0.25) 4.58 0.20 4.58 +0.25 ?.15 0.38 +0.10 ?.05 0.38 +0.10 ?.05
ka75xxx 6 mechanical dimensions (continued) package dimensions in millimeters sot-89 0.40 0.10 2.50 0.20 (0.50) (0.40) 4.10 0.20 0.40 +0.10 0.05 0.50 0.10 1.65 0.10 4.50 0.20 1.50 0.20 c0.2 1.50 typ 1.50 typ (1.10)
ka75xxx 7 ordering information product number package operating temperature ka75250z to-92 -25 ~ +85 c ka75270z ka75290z ka75310z ka75330z ka75360z ka75390z ka75420z ka75450z ka75250m sot-89 ka75270m ka75290m ka75310m ka75330m ka75360m ka75390m ka75420m ka75450m
ka75xxx 9/10/02 0.0m 001 stock#dsxxxxxxxx ? 2002 fairchild semiconductor corporation life support policy fairchild?s products are not authorized for use as critical components in life support devices or systems without the express written approval of the president of fairchild semiconductor corporation. as used 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 (c) whose 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 of the user. 2. a critical component in 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. www.fairchildsemi.com disclaimer fairchild semiconductor reserves the right to make changes without further notice to any products herein to improve reliability, function or design. fairchild does not assume any liability arising out of the application or use of any product or circuit described herein; neither does it convey any license under its patent rights, nor the rights of others.
careers | sitema go datasheets, samples, buy technical information applications design center support company investors my f a home >> find products >> product status/pricing/packaging back to top ka75310m voltage detector (3.1v) general description back to top features back to top contents ? general description ? features ? product status/pricing/packaging ? order samples ? qualification support the ka75250/ka75270/ka75290/ka75310/ka7533 0/ka75360/ka75390 /ka75420/ka75450 prevents error of system from supply voltag e below normal voltage le vel at the time the power on and instantaneous powe r off in systems. z detecting against error operations at the power on/off. z resetting function for the lo w voltage microprocessor. z checking low battery datasheet download this datasheet e - mail this datasheet this page print version product product status pb-free status package type leads packing method ka75310mtf lifetime buy sot - 89 3 tape reel indicates product with pb -free second-level interconne ct. for more information click here. related links request samples how to order products product change notices (pcns) support sales support quality and reliability design cente r pa g e 1 of 2 product folder - fairch ild p/n ka75310m - volta g e detector ( 3.1v ) 17-au g -2007 mhtml:file://c:\temp\ka75310mtf.mht
qualification support click on a product for detailed qualification data back to top product ka75310mtf ? 2007 fairchild semiconductor products | design center | support | company news | investors | my fairchild | contact us | site index | privacy policy | site terms & conditions | standard terms & conditions o pa g e 2 of 2 product folder - fairch ild p/n ka75310m - volta g e detector ( 3.1v ) 17-au g -2007 mhtml:file://c:\temp\ka75310mtf.mht
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