page 1 of 3 1. overview the hc 2410 is a bipolar integrated circuit designed for telephone bell replacement low power dissipation adjustable output tune adjustable switching rate built-in hysteresis prev ents false triggering dip8 2. block diagram and pin description 2.1 block diagram 2.2 pin description pin no. symbol description pin no. symbol description 1 v cc supply voltage 5 gnd gnd 2 t r triggering input 6 r tf high frequency oscillation resistance 3 c sf low frequency oscillation capacitor 7 c tf high frequency oscillation capacitor 4 r sf low frequency oscillation resistance 8 out output hysteresis low freq. high freq. output oscillator oscillator amp regulator 67 34 1 2 8 5 h s i n se m i c o nduc t o r pt e lt d www.hsin .com.sg tone rin g er HC2410
page 2 of 3 3. electrical characteristics 3.1 absolute maximum ratings unless otherwise specified, t amb = 25 parameter symbol value unit supply voltage v cc 30 v power dissipation p d 400 mw operating temperature t amb -25 ~ 75 storage temperature t stg -55 ~ 150 3.2 electrical characteristics unless otherwise specified, t amb = 25 va l u e parameter symbol test conditions min typ max unit supply voltage v cc 29.0 v initiation voltage v init 17 19 21 v initiation current i init 1.4 2.5 4.2 ma sustain voltage v sust 9.7 11 12 v sustain current i sust 0.7 1.4 2.5 ma output level high v oh v cc =24v, i 8 = -10ma, v 6 =7v,v 7 =0v 20.0 21.5 22.5 v output level low v ol v cc =24v, i 8 =10ma, v 7 =7v, v 6 =0v 0.7 1.0 2.0 v trigger input operation voltage v tr v cc =15v, i 2 =100ua 9.0 10.5 12 v high frequency 1 f h1 r tf =191k, c tf =6800pf 461 512 563 hz high frequency 2 f h2 r tf =191k, c tf =6800pf 576 640 703 hz low frequency f sw r sf =165k, c sf =0.47uf 9 10 11 hz 4. test circuit HC2410 1 2 3 45 6 7 8 165k 191k r c c 6800pf 0.47 f r tf tf sf sf c2 22 f r l +
page 3 of 3 5. characteristics curve 6. application circuit 7. package dimensions 10 20 30 1 2 3 ma v 0 no load supply current icc (ma) supply voltage vcc (v) 29v HC2410 1 2 3 45 6 7 8 1300 8 t r 165k 191k 100k k 2k 6.8k r c2 c1 r1 c c c3 0.22 f 6800pf 0.47 f 22 f /50v 1 f /250v 15 r tf tf sf sf sl r +
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