35 unit v v a w w c c c c/w c/w symbol v in v c i o p d1 p d2 t j t op t stg r th(j-c) r th(j-a) features ? compact full-mold package (equivalent to to220) ? output current: 1.5a ? low dropout voltage: v dif 1v (at i o =1.5a) ? variable output voltage (rise only) may be used for remote sensing ? output on/off control terminal is compatible with ls-ttl. (it may be directly driven by ls-ttl or standard cmos logic.) ? built-in foldback overcurrent (SI-3033C: drooping type overcurrent), overvoltage, thermal protection circuits applications ? for stabilization of the secondary stage of switching power supplies ? electronic equipment absolute maximum ratings (t a =25 c) si-3000c series 5-terminal, multi-function, full-mold, low dropout voltage dropper type ratings SI-3033C si-3050c/3090c si-3120c/3150c si-3240c 20 35 35 45 v in 1.5 *2 18(with infinite heatsink) 1.5(without heatsink, stand-alone operation) C 40 to +125 C 30 to +100 C 40 to +125 5.5 66.7(without heatsink, stand-alone operation) si-3000c series parameter dc input voltage voltage of output control terminal dc output current power dissipation junction temperature ambient operating temperature storage temperature thermal resistance (junction to case) thermal resistance (junction to ambient air)
36 parameter input voltage output voltage dropout voltage line regulation load regulation temperature coefficient of output voltage ripple rejection quiescent circuit current overcurrent protection starting current *4,6 control voltage (output on) control voltage (output off) control current (output on) control current (output off) symbol v in v o conditions v dif conditions conditions ? v oline conditions ? v oload conditions ? v o / ? t a conditions r rej conditions i q conditions i s1 conditions v c. ih v c. il i c. ih conditions i c. il conditions electrical characteristics *1: "a" may be indicated to the right of the sanken logo. *2: v in(max) and i o(max) are restricted by the relation p d(max) =(v in -v o ) ? i o =18(w). *3: refer to the dropout voltage.(refer to setting dc input voltage on page 7.) *4: i s 1 is specified at C 5(%) drop point of output voltage v o on the condition that v in =v o +3v, i o =1a. *5: output is on even when output control terminal v c is open. each input level is equivalent to ls-ttl. therefore, it may be directly driven by an ls-ttl circuit. *6: a foldback type overcurrent protection circuit is built into the i c regulator (excluding SI-3033C). therefore, avoid using it for the following applica- tions as it may cause starting errors: (1) constant current load (2) plus/minus power (3) series power (4) v o adjustment by raising ground voltage unit v v v mv mv mv/ c db ma a v a ma si-3000c *1 si-3000ca ratings SI-3033C si-3050c si-3090c min. typ. max. min. typ. max. min. typ. max. *3 15 *2 6 *3 30 *2 10 *3 30 *2 3.168 3.300 3.432 4.80 5.00 5.20 8.64 9.00 9.36 3.234 3.300 3.366 4.90 5.00 5.10 8.82 9.00 9.18 v in =5v, i o =1.0a v in =8v, i o =1.0a v in =12v, i o =1.0a 0.5 0.5 0.5 i o 1.0a 1.0 1.0 1.0 i o 1.5a 10 30 10 30 18 48 v in =4.5 to 12v, i o =1.0a v in =6 to 15v, i o =1.0a v in =10 to 20v, i o =1.0a 40 100 40 100 70 180 v in =5v, i o =0 to 1.5a v in =8v, i o =0 to 1.5a v in =12v, i o =0 to 1.5a 0.5 0.5 1.0 v in =5v, i o =5ma, t j =0 to 100 cv in =8v, i o =5ma, t j =0 to 100 cv in =12v, i o =5ma, t j =0 to 100 c 54 54 54 v in =5v, f=100 to 120h z v in =8v, f=100 to 120h z v in =12v, f=100 to 120h z 310 510 510 v in =5v, i o =0a v in =8v, i o =0a v in =12v, i o =0a 1.6 1.6 1.6 v in =5v v in =8v v in =12v 2.0 2.0 2.0 0.8 0.8 0.8 20 20 20 v c =2.7v C 0.3 C 0.3 C 0.3 v c =0.4v (t a =25 c unless otherwise specified) si-3000c series v c terminal *5
37 parameter input voltage output voltage dropout voltage line regulation load regulation temperature coefficient of output voltage ripple rejection quiescent circuit current overcurrent protection starting current *4,6 control voltage (output on) control voltage (output off) control current (output on) control current (output off) electrical characteristics *1: "a" may be indicated to the right of the sanken logo. *2: v in(max) and i o(max) are restricted by the relation p d(max) =(v in -v o ) ? i o =18(w). *3: refer to the dropout voltage.(refer to setting dc input voltage on page 7.) *4: i s 1 is specified at C 5(%) drop point of output voltage v o on the condition that v in =v o +3v, i o =1a. *5: output is on even when output control terminal v c is open. each input level is equivalent to ls-ttl. therefore, it may be directly driven by an ls-ttl circuit. *6: a foldback type overcurrent protection circuit is built into the i c regulator. therefore, avoid using it for the following applications as it may cause starting errors: (1) constant current load (2) plus/minus power (3) series power (4) v o adjustment by raising ground voltage unit v v v mv mv mv/ c db ma a v a ma symbol v in v o conditions v dif conditions conditions ? v oline conditions ? v oload conditions ? v o / ? t a conditions r rej conditions i q conditions i s1 conditions v c. ih v c. il i c. ih conditions i c. il conditions si-3000c series (t a =25 c unless otherwise specified) v c terminal *5 si-3000c *1 si-3000ca ratings si-3120c si-3150c si-3240c min. typ. max. min. typ. max. min. typ. max. 13 *3 30 *2 16 *3 30 *2 25 *3 40 *2 11.52 12.00 12.48 14.40 15.00 15.60 23.04 24.00 24.96 11.76 12.00 12.24 14.70 15.00 15.30 23.52 24.00 24.48 v in =15v, i o =1.0a v in =18v, i o =1.0a v in =27v, i o =1.0a 0.5 0.5 0.5 i o 1.0a 1.0 1.0 1.0 i o 1.5a 24 64 30 90 48 128 v in =13 to 25v, i o =1.0a v in =16 to 25v, i o =1.0a v in =25 to 38v, i o =1.0a 93 240 120 300 120 300 v in =15v, i o =0 to 1.5a v in =18v, i o =0 to 1.5a v in =27v, i o =0 to 1.5a 1.5 1.5 2.5 v in =15v, i o =5ma, t j =0 to 100 cv in =18v, i o =5ma, t j =0 to 100 cv in =27v, i o =5ma, t j =0 to 100 c 54 54 54 v in =15v, f=100 to 120h z v in =18v, f=100 to 120h z v in =27v, f=100 to 120h z 510 510 510 v in =15v, i o =0a v in =18v, i o =0a v in =27v, i o =0a 1.6 1.6 1.6 v in =15v v in =18v v in =27v 2.0 2.0 2.0 0.8 0.8 0.8 20 20 20 v c =2.7v C 0.3 C 0.3 C 0.3 v c =0.4v
38 a. part number b. lot number pin arrangement q gnd w v c e v o r v os t v in plastic mold package type flammability: ul94v-0 weight: approx. 2.3g block diagram si-3000c standard external circuit c 0 : output capacitor (47 to 100 f) *1 c 1 : oscillation prevention capacitor c 2 (c 1 : approx. 47 f, c 2 : 0.33 f) these capacitors are required if the input line is inductive and in the case of long wiring. tantalum capacitors are rec- ommended for c 1 and c 0 , particularly at low temperatures. *2 d 1 : protection diode this diode is required for protection against reverse biasing of the input and output. sanken eu2z is recommended. external dimensions 1 2 5 reg. on/off protection drive amp. v ref 3 4 mic t r1 equivalent to ls-ttl d 1 c 0 c 2 c 1 dc input dc output v in v o gnd gnd 5 si-3000c open 2 3 4 1 * 1 * 2 ++ (unit:mm) si-3000c series 10.0 0.2 4.2 0.2 0.95 0.15 8.2 0.7 2.6 0.1 3.9 0.7 (4.3) (4.6) (8.0) (17.9) (2.0) 0.85 +0.2 C 0.1 0.45 +0.2 C 0.1 3.2 0.2 4.0 0.2 7.9 0.2 5.0 0.6 16.9 0.3 0.5 12345 p1.7 0.7 4=6.8 0.7 2.8 0.2 forming no. 1101 a b
39 t a -p d characteristics p d =i o ? [v in (mean) C v o ] si-3000c series 15 20 10 5 0 C 30 0 25 50 ambient temperature t a ( c) power dissipation p d (w) 75 100 75 75 2mm (7.6 c/w) 100 100 2mm (5.2 c/w) 200 200 2mm (2.3 c/w) infinite heatsink without heatsink with silicon grease heatsink: aluminum
40 1. variable output voltage with a single external resistor the output voltage may be increased by inserting resistor r ex between terminals no.4 (sensing terminal) and no.3 (output terminal). the cur- rent i rex flowing into terminal no.4 is 1ma (typ.)(SI-3033C:0.43ma (typ.)), therefore the adjusted output voltage v out is: v o =v 04 +i rex ? r ex *v 04 : output voltage of si-3000c series however, the internal resistor (between terminals no. 4 and no.1) is a semiconductor resistor, which has approximately thermal characteris- tics of +0.2%/ c. it is important to keep the thermal characteristics in mind when adjust- ing the output voltage. 2. variable output voltage with two external resistors the output voltage may be increased by inserting resistors r ex1 be- tween terminals no.4 (sensing terminal) and no.3 (output terminal) and r ex2 between terminals no.4 and no.1 (ground terminal). the current i 4in flowing into terminal no.4 is 1ma (typ.)(SI-3033C: 0.43ma (typ.)) so the thermal characteristics may be improved com- pared to the method shown in 1 by setting the external current i rex1 at approximately 5 times the value of i 4in (stability coefficient s=5). the adjusted output voltage v out in this case is: v o =v 04 +r ex1 ? i rex1 i rex1 =s ? i 4in the value of the external resistors may be obtained as follows: r ex1 = v o -v 04 r ex2 = v 04 s ? i 4in , (s-1) ? i 4in *v 04 : output voltage of si-3000c series s: stability coefficient of i 4in (may be set to any value) note: in the si-3000c series, the output voltage increase can be ad- justed as mentioned above. however, when the rise is set to ap- proximately 10v compared to output voltage v 04 , the necessary output current may not be obtained due to the s.o.a. protection circuit in the si-3000c series. gnd gnd open 5 2 3 4 1 si-3000c i rex r ex 47 f47 f v o v 04 v in ++ gnd gnd open 5 2 3 4 1 si-3000c i rex1 r ex1 r ex2 47 f47 f v o i 4in v 04 v in ++ 35 20 25 30 15 10 5 0 246810 output voltage v o (v) external resistor r ex (k ? ) v in =v o +1v si-3240c si-3150c si-3120c si-3090c si-3050c SI-3033C external resistor r ex1 (k ? ) 35 20 25 30 15 10 5 0 1.0 2.0 output voltage v o (v) v in =v o +1v si-3150c r ex2 =3.75k ? SI-3033C r ex2 =1.9k ? si-3050c r ex2 =1.25k ? si-3120c r ex2 =3k ? si-3090c r e x 2 =2.25k ? si-3240c r ex2 =6k ? si-3000c series external variable output voltage circuit
41 typical characteristics i o vs. v dif characteristics temperature coefficient of output voltage(si-3050c) circuit current(si-3050c) output voltage(SI-3033C) output voltage(si-3050c) output voltage(si-3240c) overcurrent protection characteristics(SI-3033C) overcurrent protectioncharacteristics(si-3050c) overcurrent protection character istics(si-3240c) on/off control characteristics(si-3050c) thermal protectioncharacteristics(si-3050c) C 40 C 20 0 20 40 60 80 100 120 140 5.08 5.06 5.04 5.02 5.00 4.98 4.96 ambient temperature t a ( c) output voltage v o (v) v in =8v l o =0a v o =5v 0 1.0 2.0 3.0 4.0 6 5 4 3 2 1 0 output current l o (a) output voltage v o (v) 8v 15v 6v v in =30v 0 0.5 1.0 1.5 2.0 2.5 3.0 5 4 3 2 1 0 output current i o (a) output voltage v o (v) v in =4.5v 5v 6v 8v 15v 0 1.0 2.0 3.0 4.0 6 5 4 3 2 1 0 output on/off control voltage (v) output voltage v o (v) v in =8v l o =1a off on 20 60 100 140 180 6 5 4 3 2 1 0 case temperature t c ( c) output voltage v o (v) v in =8v l o =10ma (t a =25 c) si-3000c series note on thermal protection: the thermal protection circuit is intended for protection against heat during instantaneous short-circuiting. its operation is not guaran- teed for continuous heating condition such as short-circuiting over extended periods of time. 0 0.5 1.0 1.5 0.8 0.6 0.4 0.2 0 output current l o (a) dropout voltage v dif (v) 0246810 50 40 30 20 10 0 input voltage v in (v) ground current l g (ma) v o =5v i o =1.5a 1.0a 0.5a 0a 0123456 5 4 3 2 1 0 input voltage v in (v) output voltage v o (v) 1a 1.5a l o =0a 0.5a 01234567 7 6 5 4 3 2 1 0 input voltage v in (v) output voltage v o (v) 1.5a l o =0a 0.5a 1a 010203040 30 25 20 15 10 5 0 input voltage v in (v) output voltage v o (v) l o =0a 0.5a 1a 1.5a 0 1.0 2.0 3.0 4.0 25 20 15 10 5 0 output current l o (a) output voltage v o (v) v in =40v 30v 35v 25v 27v
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