ka75330 ? voltage detector ? 2002 fairchild semiconductor corporation www.fairchildsemi.com ka75330 rev. 1.1.0 1 december 2012 ka75330 voltage detector features ? detects against error operations at power on/off ? resets function for low-voltage microprocessor ? checks low-battery ordering information block diagram figure 1. block diagram part number operating temperature range top mark package packing method KA75330ZTA -25 ~ +85 c ka75330 to-92 ammo 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 description the ka75330 prevents the system error where the supply voltage is below the normal level at the time when the power is on and instantaneous power off in systems. to-92 1 1. input 2. gnd 3. output
ka75330 ? voltage detector ? 2002 fairchild semiconductor corporation www.fairchildsemi.com ka75330 rev. 1.1.0 2 absolute maximum ratings stresses exceeding the absolute maximum ratings may damage the device. the device may not function or be opera- ble above the recommended operating conditions and stressing the parts to these levels is not recommended. in addi- tion, extended exposure to stresses above the recommended operating conditions may affect device reliability. the absolute maximum ratings are stress ratings only. values are at t a = 25c unless otherwise noted. electrical characteristics values are at t a = 25c unless otherwise noted . symbol parameter value unit v cc supply voltage 0.3 ~ +15.0 v v det detecting voltage 3.3 v v hys hysteresis voltage 50 mv t opr operating temperature -25 ~ +85 c t stg storage temperature -50 ~ +150 c p d power dissipation (to-92) 200 mw dv det /dt detecting voltage temperature coefficient r l = 200 ,+0.01 %/c symbol parameter conditions min. typ. max. unit v det detecting voltage r l = 200 ? , v ol 0.4 v 3.15 3.30 3.45 v v ol low output voltage r l = 200 ? 0.4 v i lkg output leakage current v cc = 15 v 0.1 a v hys hysteresis voltage r l = 200 ? 30 50 100 mv dv det /dt detecting voltage temperature coefficient r l = 200 ? 0.01 %/c i ccl circuit current (at on time) v cc = v det(min) - 0.05 v 300 500 a i cch circuit current (at off time) v cc = 5.25 v 30 50 a v th(opr) threshold operating voltage r l = 200 ? , v ol 0.4 v 0.8 1.0 v t ol " l" transmission delay r l = 1.0 k ? , c l = 100 pf 0.6 10 s t oh " h" transmission delay r l = 1.0 k ? , c l = 100 pf 15 20 s i oli output current (at on time) v cc = v det(min) - 0.05 v, t a = 25c 10 20 30 ma i olii output current (at on time) v cc = v det(min) - 0.05 v, t a = -25 ~ +85c 81630ma
ka75330 ? voltage detector ? 2002 fairchild semiconductor corporation www.fairchildsemi.com ka75330 rev. 1.1.0 3 test circuit 1. figure 2. test circuit test circuit 2. figure 3. test circuit test circuit 3. figure 4. test circuit ka75xxx input 10u 10v gnd output a1 m + a2 v1 ka75xxx input 10u 10v gnd output a1 m + + a2 v1 ka75330 f 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 ka75330 f f v cc r l led ka75xxx input gnd output v cc r l led ka75xxx input gnd output ka75330
ka75330 ? voltage detector ? 2002 fairchild semiconductor corporation www.fairchildsemi.com ka75330 rev. 1.1.0 4 application circuit figure 5. 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 ka75330 v cc
ka75330 ? voltage detector ? 2002 fairchild semiconductor corporation www.fairchildsemi.com ka75330 rev. 1.1.0 5 physical dimensions figure 6. 3-lead, to-92, molded, 0.200 in line spacing lead form package drawings are provided as a service to customers considering fairchild components. drawings may change in any manner without notice. please note the revision and/or date on the drawing and contact a fairchild semiconductor representative to ver ify or obtain the most recent revision. package specifications do not expand the terms of fairchild?s worldwide terms and conditions, specifically the warranty therein, which covers fairchild products. always visit fairchild semiconductor?s online packaging area for the most recent package drawings: http://www.fairchildsemi.com/packaging/ . for current tape and reel specifications, visit fairchild semiconductor?s online packaging area: http://www.fairchildsemi.com/products/discrete/pdf/to92_tr.pdf . d
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