rev.1.00, jul.25. 2003, page 1 of 7 M52461GP servo moter motrol for radio control rej03f0006-0100z rev.1.00 jul.25.2003 description the M52461GP is a semiconductor integrated circuit for servo control applications. features ? excellent power supply stability and temperature stability ? simple setting of dead of band range ? small outline (16pin ssop) applications ? digital proportional systems for radio control, servo motor control ,etc recommended operating conditions ? supply voltage range : 2.8 to 7.5 v ? operating temperature : ?20 to 75c ? input rise time : 500 ns max. ? input fall time : 500 ns max. block diagram control logic circuit flip - flop output control one-shot multivibrator pulse stretcher voltage regulating circuit vreg input
M52461GP rev.1.00, jul.25. 2003, page 2 of 7 pin arrangement outline :16p2e-a ( 0.65mm p itch) vreg input M52461GP pin description pin no. symbol function descriptions 1 vreg regulated voltage source this is output of the internal regulated supply voltage. make connections from this pin to pot-entiometer and pulse stretcher resister. 2 cst stretcher pin connect the capacitor and resistor of the pulse stretcher section. 3 cdb dead band setting pin connect the capacitor and band can be changed according the value of this capacitor. 4 input input pin 5 rt constant setting pin connect a capacitor that will determine the constant current value of pin 6. constant current will became 100 a at the time of the resistance of 18 k ? 6 cl local pulse setting pin connect a capacitor that will adjust a triangular wave made by charging of constant current. 7 n.c. no connection 8 pot servo position voltage input pin connect to the potentiometer for the position detection connected with the output axis. 9 gnd grounding pin grounding 10 out1 output 1 connect to the base of the external npn transistor 11 out2 output 2 connect to the base of the external pnp transistor 12 out3 output 3 connect to the base of the external npn transistor 13 out4 output 4 connect to the base of the external pnp transistor 14 n.c. no connection 15 vcc supply voltage connect a capacitor of more than 10 f. 16 cft fixed driving pulse setting pin connect a capacitor that will determine the fixed driving pulse width.
M52461GP rev.1.00, jul.25. 2003, page 3 of 7 absolute maximum ratings (vcc = 5v, ta = 25c, unless otherwise noted) symbol parameter test conditions ratings unit vcc supply voltage 9.0 v io output current out1 to out4 40 ma pd power dissipation 300 mw k thermal derating range ta 25c ?3.0 mw/c tstg storage temperature ?40 to 125 c thermal derating (maximumrating) power dissipation pd(m w) ambient te mperature t ?c a( )
M52461GP rev.1.00, jul.25. 2003, page 4 of 7 electrical characteristics (vcc = 5.0 v, ta = 25c) limits symbol parameter test conditions min typ max unit vcc supply voltage 2.8 5.0 7.5 v icc1 circuit current 1 o utput off ? 5.0 10.0 ma icc2 circuit current 2 output on ? 6.0 11.0 ma vreg regulated voltage no load 2.35 2.5 2.65 v dvreg regulated voltage precisio n vcc = 3.5 to 6.5 v ? 0.2 ? %/v lref reference current rt = 18 k ? , pin 5 current value 90 100 110 a vih high input voltage pin4 2.0 ? vcc v wl standard local pulse width rt = 18 k ? , cl = 0.1 f 1.4 1.5 1.6 ms vcc = 3.5 to 6.5 v ? ? 2.0 dwl supply voltage dependence of the local pulse width vcc = 2.5 to 7.5 v ? ? 15.0 s/v wdb1 minimum dead bandwidth cfp = 0.01 f not connect cdb ??1.0 s wdb2 standard driving band width n ot connect cfp and cdb ? 2.5 6.0 s ast stretcher gain rt = 18 k ? rst = 120 k ? cst = 0.1 f ? 100 ? times wkp fixed driving pulse width cfp = 0.01 f not connect cdb 0.7 1.0 1.3 ms wcp standard driving pulse width not connect cfp and cdb 0.3 0.5 0.8 ms wout output pulse width cst = 0.1 f rst = 120 k ? pulse width 100 s (3pin) 8.0 10.0 12.0 ms vosat output pin saturation voltage isink = 20 ma ? 0.2 0.4 v
M52461GP rev.1.00, jul.25. 2003, page 5 of 7 typical characteristics circuit current vs supply voltage when output is off circuit current icc (ma) regulated supply voltage vs supply voltage regulated supply volt age vreg (v) supply volt age vcc (v) supply volt age vcc (v) output saturation voltage vs output sink current output saturation voltage vol(m a) output sink current isi nk(m a) dead band width vs dead band capacitance dead band width tdb( s) ead band capacitance cdb( f)
M52461GP rev.1.00, jul.25. 2003, page 6 of 7 timing diagram input(4pin) local pulse (6pin) error pulse(3pin) stretcher(2pin) out1(10pin) out2(11pin) out3(12pin) out4(13pin) application example input
M52461GP rev.1.00, jul.25. 2003, page 7 of 7 package dimensions ssop16-p-225-0.65 weight(g) jedec code 0.06 eiaj package code lead material alloy 42 16p2e-a plastic 16pin 225mil ssop symbol min nom max a a 2 b c d e l l 1 y dimension in millimeters h e a 1 i 2 ? ? .17 0 0 .13 0 .9 4 .3 4 ? .2 6 .3 0 ? ? ? .0 1 .1 0 ? .15 1 .22 0 .15 0 .0 5 .4 4 .65 0 .4 6 .5 0 .0 1 ? .8 5 ? .2 0 .45 1 ? .32 0 .2 0 .1 5 .5 4 ? .6 6 .7 0 ? .1 0 ? b 2 ? 35 0. ? 0 ? 10 e e 1 16 9 8 1 h e e d e y f a a 2 a 1 l 1 l c e b 2 e 1 i 2 recommended mount pad detail f detail g z z 1 x ? ? z 1 ? 0.225 ? ? ? 0.375 0.13 z g b x m
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