STEP-UP DC/DC CONTROLLER NO. EA-088-0204 OUTLINE !"!## $% $ &&' &'"!!&( "$ ) $ )$ && * $ & " *)$ %& +"$ *$,!& )*)$ "$ "$ *! $ " *$$"$%& +& -" ./012 " 3&'!!&*+)) $ ( !"!## $% $ ,!) 4' , $& ,!$$ *$$" ** !'5*% *$ ! ,!$ $ $ , $ $&&( $ 6# * '& ! ,!$ $ $ , $&&() 36#%$ $(, " ( ( &$ $&&() (! &&( 7 8) )"$ $"& $*$) $+ , (! &&( 7,.36* -9: %$2 ;,.#* < -9: %$2 3 ) ! $ " * ) ) $+ ,*) ,,"," ( ( & $ $") $!* & $&% ' )) *1 (!! $ " '- &( ,)& $ ' $ $& ! & ! $ " * ' !'$ .0& + "!!& ="& & $ /01 &&%&2*$ ) ,-$+ " $(' !$&!$$$& " +$ FEATURES * $("$ (! >3.)6#%$2 * 4$!" 0& +$+ ;0 0 * 6"& $1 (! $5"$ $." !" #&(, $ ' $ $& ! 2 * '! $)6 && 5="$ ( < -9:* -9: * #" (( &(!7 8 * 9+)$ 0& +3 " ( ?;8 * /01&&%& (!0.9( (! <02 * ,&& -+ < $ .! -+ + @;,,2 A ./$#%&!,$ 2 APPLICATIONS * $ $ 0& +'" )! &="!,$ * $ $ 0& +'" )1#$# 1 R1211x BLOCK DIAGRAMS Version A/C Version B/D VFB VFB OSC OSC DTC DTC EXT EXT + - - AMPOUT Vref + VIN + - Vref + VIN GND UVLO UVLO + + GND - - + + DELAY Latch Latch DELAY - - Chip Enable CE SELECTION GUIDE 4$ * && )="$ (* ! $&)"$ $*$ ! -+ (!) 4 $ & "B=" & $ $,' +$ $+ ! $",'$&'C A", Code Contents #+$ $) -+(!D #DA AD< #+$ $)! $&5"$ $ 3D -9:*' 3/!$. $&,!$ $(!2 6D -9:*' !$.4$ $&,!$ $(!*' $(2 D< -9:*' 3/!$. $&,!$ $(!2 #D< -9:*' !$.4$ $&,!$ $(!*' $(2 PIN CONFIGURATIONS SON-6 1 SOT-23-6W 6 2 DELAY AMPOUT/CE (MARK SIDE) GND VFB 3 EXT VIN 4 6 5 4 EXT GND VIN (MARK SIDE) 5 DELAY AMPOUT/CE 1 2 2 VFB 3 R1211x PIN DESCRIPTIONS Pin No Description Symbol SON6 SOT23-6W #13E ; FA# F"$$ < $&5#%$." !" 2 G G 0,1 '"!!&($ ; < 0)% 5 -$),$ $+" !" 0& + 3/ $) $&! .) $+" !" #&() $2 3,!&)" !" $.30$2 !$&$.6#0$*3 % H9H2 ABSOLUTE MAXIMUM RATINGS Symbol Item Rating Unit ; 0 0,1 0,1$0& + 0(;7 $" !" 0& + 3 @ ; -9: -9: ?G 0,1L 0*0'/3 7 7G 8 0,1L<<0*4(;7L ,3 ; 0,1L<<0*4(;7L ,3 < ; ; ; >3 ; ;; 7 ,3 7; ; 0 G; 7 <; , < 0 @ < @ 0 G; 7 ; ,3 < 7 >3 $& 0,1L<<0* H9H 0,1L<<0*0'/3 @ ; -9: -9: ?G 0,1L 0*0'/3 7 7G 8 ,",#" (( & 0,1L<<0*H9H (;7+ H9HA $ 0,1L<<0*4(;7L ,3 ; (;7/ H1HA $ 0,1L<<0*4(;7L ,3 < , ( 4'/< 4'/< #&($+ "$ #&($# +" $ @ 0,1L<<0*0'/3 0,1L0)%L;0*0'/3 #&($# 0,1L<<0*0)%L 0* & 0'/3 4&(/ H1H4$!" "$ 0,1L 0*0&(L 0 ; ; >3 0&(+ H9H4$!" 0& + 0,1L 0*0&(L 0 0 ; 0&(/ H1H4$!" 0& + 0,1L;0*0&(L0 0 0'/< 67$57 089/2 089/2 0 < 0 5 R1211x * R1211x002C ! L;K Symbol 0,1 ! $+4$!" 0& + 0)% 0)%0& +&$ 0)% 0)%0& + Conditions Min. 0,1L<<0 7@; G K! @;K 4)% 0564$!" "$ 0,1L 0*0)%L 0 0 )26& && 5="$ ( 0,1L<<0*0'/3 0,1L0)%L;0*0'/3 0,1L<<0*0)%L 0* 0'/3 < -9: -9: ? 0,1L 0*0'/3 7 7G 8 ,",#" (( & 0,1L<<0*H9H (;7+ H9HA $ 0,1L<<0*4L ,3 ; (;7/ H1HA $ 0,1L<<0*4L ,3 < 4'/< 4'/< #&($+ "$ #&($# + "$ @ 0,1L<<0*0'/3 0,1L0)%L;0*0'/3 #&($# 0,1L<<0*0)%L 0* & 0'/3 4&(/ H1H4$!" "$ 0,1L 0*0&(L 0 ; ; >3 0&(+ H9H4$!" 0& + 0,1L 0*0&(L 0 0 ; 0&(/ H1H4$!" 0& + 0,1L;0*0&(L0 0 0'/< 67$57 089/2 089/2 0 < 0 7 R1211x TYPICAL APPLICATIONS AND TECHNICAL NOTES Inductor VIN VOUT Diode NMOS C4 EXT R1 C3 DELAY C1 VFB C2 R3 R2 GND AMPOUT C5 R4 NMOS : IRF7601 (International Rectifier) Inductor : LDR655312T-100 10H (TDK) for R1211x002A : LDR655312T-220 22H (TDK) for R1211x002C Diode : CRS02 (Toshiba) C1 : 4.7F (Ceramic) C2 : 0.22F (Ceramic) C3 : 10F (Ceramic) C4 : 680pF (Ceramic) C5 : 2200pF (Ceramic) R1 : Output Voltage Setting Resistor 1 R2 : Output Voltage Setting Resistor 2 R3 : 30k R4 : 30k Inductor VIN Diode EXT NMOS C4 VOUT R1 C3 C1 DELAY VFB R3 C2 GND R2 CE CE Control NMOS : IRF7601 (International Rectifier) Inductor : LDR655312T-100 10H (TDK) for R1211x002B : LDR655312T-220 22H (TDK) for R1211x002D Diode : CRS02 (Toshiba) C1 : 4.7F (Ceramic) C2 : 0.22F (Ceramic) C3 : 10F (Ceramic) C4 : 680pF (Ceramic) R1 : Setting Output Voltage Resistor 1 R2 : Setting Output Voltage Resistor 2 R3 : 30k MA N,!& " ,(!!& " !" %& +=",$ ;0&4) " !" %& + =",$ ;0,* $+)A$'$%% &, * )* $& ,!$$ 8 R1211x * />5, ! $ %&")(! ! '$0,1!$$FA#*'$$ (! &! !& $% * 4$ ,) ! ) $+&( ,) & ! $*'$$ (! &!!& $) !%"!+* $$ '$#&(!$$FA#!$) 4' ,$,",'$+ $ * $$ >5,%&") ! '$0287$FA#*<'$$ (! &!!& $) !% "!+. ,,$%&"), >5 >524) ! $) ,!## $% ,("$ &*" $ &", (! ! $ ) , (! * $$ ! '$0287$ %$+!$ *G'$$ (! &!!& $) !%"!+ ! $ %&")G!$$% )" !" %& + $+(! &%&" '$ !5 $ !5 * " !" 0& + $ ' % )%& + $+*$'$$ (! &!!& $) !%"!+) $ ),"& " !" 0& +L0)%x.J2 JL - ,,$$+) $ * ! $)1 ! $ " )&&'D$ 4 ,,"," ( ( &* + $ $& ! *)#13E!$ 3$,,"," ( ( & $ $"$ %& +)#(/$ i2 Inductor Diode IOUT VIN VOUT i1 LX Tr CL GND Discontinuous Mode Continuous Mode IL ILxmax IL ILxmax ILxmin ILxmin Tf Iconst t Ton T=1/fosc Toff t Ton T=1/fosc Toff ',* $ $"",$ $ $"",) !"!' $++"& !$$+$ $ $"" )$" "$ #"$+ $ , ) $ * '$ %& + $ $" 0,1* "$ 0,1x 1)* & !'*21*' "!!&' $!" * $ $$ ),"& 7RQ 21 = 0,1 x 1 5,"& !"! " *& !'"!!&),!'" &"$+)) ,4$ *$!" " $ .02870,12x 1* )& !'*2)) $$ ),"& 10 R1211x 7I 2)) = 0,1 x . 0287 - 0,1 2 x 1 5,"& 4$ ),"&*),$ ,)' $+(%$ $" $ $+, "%+& !'*$9 $ $ ),"& $9 = . 21 + 2)) 2 x Q 7RQ 0,1 x 1 + 7I 0,1 x . 0287 - 0,1 2 x 1 P 5,"&< 4$ $ &* '$ ) L )) "* $" "$ , $ $"* $ ! $ ) ' $+ +"& , $ $"", 4$ $ $"",* % $) "$ ="& '$$ ,$)) , ,1 = = 287 - ,1 x 5,"&G 5" * & !'*$9="& " !" & !'*0287x4287* "* 4287 = )26& x 0,1 x $ { x 1 x . 0287 - 0,1 2} = 0,1 x $ . x 1 x 0287 2 5,"&; $4287 ,, $),"&;* "$ )&' "+ $" * $ , , $ $"" $ $"" "$ "+ $" 4 $ * $* 4287 = )26& x 0,1 x $ { x 1 x . 0287 - 0,1 2}+ 0,1 x 4 $ 0287 5,"& 4$ ,,$ * !- "$ *41,)&'$+ "+ $" $ % )&&'D 41 , = 4 $ + 0,1 x $ 1 5,"& ),"&G* *$41,* = 287 ,1 x 287 + ,1 x x 5,"&@ )*!- "$ , $4287$$+ %&")41,* $ $)$!" $" !" *$ $& ,!$$ "&& 4$ ),"&*!- "$ 41, $ $"", $ & "& " 4 $ L $ ),"& !&$ $%$ & & "& $*$ & "(1' $ $& ,!$$ $ $ &" "&,,"," !" "$ '$; 8$@ 8) & "& $! &&(*'$ 41 &+*0,1&'* &)0,1+$ ' $ $ ) ' 3) 0287* 0) . ," <02) "& $ 11 R1211x TIMING CHART * R1211x002A/R1211x002C DTC SS VREF + VOUT VFB AMPOUT - + EXT R1 EXT PWM Comparator OP AMP R2 * R1211x002B/R1211x002D DTC SS VREF + VOUT EXT VFB AMPOUT - + EXT R1 PWM Comparator R2 OP AMP R) ! $S ) ! $ $+),!'$)&&'D . !2 %& +&%&)$++"&&(( $ $ "$ " ) 4$ ! 05()&%&' $!" 3&+"&&($+0287$+"! $!" %& +&%&O" ) !'$* )*0)%%& +$+"! $+%& +' $!" %& +$ $)$3/ H1H*$' $+ $ . !2 $ %& +&%&) , $+%& +' $)$,*' $+! $ 05()&%&+"&&($ + ' &%&0287&$+' &$ $+05()$0)%#" ( ( & !$$ &' &%&,$+3/**$#) G$!" ,$&$ ,! 12 R1211x . !<2 $ 0*) ! $)$05() , $ $ %& +.L02$ ' $+! $ ,$,&, SS,VREF SS VFB,VREF DTC VFB AMPOUT AMPOUT Step1 Step2 Step3 VOUT VIN R1 $! $S ! $ ) 1 ! $ " )&&'D $ 3/ , H9H $ 4 ,,", " ( ( &* + $ $& ! *)#13E!$ 3$,,"," ( ( & $ $"$ %& +)#13E!$ &(%& + &*0'/<*" !" H1H !$$ "$)) $& !'5 & & ! $! $*,- 4 $(,' !$$,- %$ ,) 6#%$ '*,-"!!&(%& +'$ /01 &&'*$,- "! $,&$!" %& + #"$+ ) ,*) " ( ( &,( ,,",*! $ " $ '-$#13E!$ ) FA#&%& &( ,)& ! $ $ & "& ' *0'/<*$#&($+"$ *4'/<*$ $ ),"& Lx0'/<4'/< $ ) ,,"," ( $&)&( ,* + ! & $&(!$ " !" H1H Output Short AMPOUT AMPOUT VDLY DTC DELAY Normal Maxduty Operation Latched EXT 13 R1211x TEST CIRCUITS * R1211x002A/R1211x002C *Oscillator Frequency, Maximum Duty Cycle, VFB Voltage Test *Consumption Current Test 6V 3.3V A VIN VIN EXT OSCILLOSCOPE VFB VFB GND DELAY GND DELAY *EXT "H" ON Resistance *EXT "L" ON Resistance 3.3V 3.3V VIN EXT VIN EXT 150 OSCILLOSCOPE 150 VFB VFB GND DELAY GND DELAY *DELAY Pin Charge Current V *DELAY Pin Discharge Current 2.5V 3.3V VIN VIN VFB VFB GND DELAY GND DELAY 14 A A 0.1V R1211x *DELAY Pin Detector Threshold Voltage Test *AMP "H" Output Current/"L" Output Current Test 3.3V 3.3V EXT VIN VIN OSCILLOSCOPE AMPOUT VFB VFB GND DELAY GND DELAY A 1V 0.9V/1.1V *UVLO Detector Threshold/Hysteresis Range Test VIN EXT OSCILLOSCOPE VFB GND DELAY *Soft-start Time Test Diode Coil C5 VOUT C2 NMOS VIN Rout EXT AMPOUT C3 VFB OSCILLOSCOPE C4 R4 C1 R1 R3 GND DELAY R2 R,!$$ S 4$" .12 D>9.#T1# ;;< 2 #.#2 D .2 ! D @ !5., 2*D>5.$ &",2J>5., 2* 5.$ &",2J>5., 2*GD !5., 2*;D>5.$ &",2 A$ D45 .4$ $ $& )2 DD7 -*D -*9.#T1# ;;< 2 #.#2 D .2 ! D @ !5., 2*D>5.$ &",2J>5., 2* 5.$ &",2J>5., 2*;D>5.$ &",2 A$ D45 .4$ $ $& )2 DD7 -*D -*