KIA34063A/AF SEMICONDUCTOR TECHNICAL DATA. DC/DC Converter Controller DIP-8

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1 SEMICONDUCO ECHNICA DAA KIAA/AF BIPOA INEA INEAED CICUI DC/DC Converter Controller he KIAA/AF series is a monolithic control circuit containing the primary functions required for DCtoDC converters. hese devices consist of an internal temperature compensated reference, comparator, controlled duty cycle oscillator with an active current limit circuit. driver and high current output switch. his series was specifically designed to be incorporated in StepDown and StepUp and VoltageInverting applications with a minimum number of external components. FEAUES Operation from.v to V input. ow Standby Current. Current imiting. Output Switch Current to.a. Output Voltage Adjustable. Frequency Operation to khz. Precision % eference. D d P A B H DIP W DIM MIIMEES A 9. _. B. _. D.. d H P W Q _. _.. MIN. _.. _..../.. Q COECO EMIE IMIN CAPACIO ND DIVE COECO I PK SENSE V CC COMPAAO INVEIN INPU D P A H U B B DIM A B B D H P U MIIMEES. _..9 _.. _.. _.../.. _.. _..../.. MAX FP /

2 MAXIMUM AINS a= ) CHAACEISIC SYMBO AIN UNI Power Supply Voltage V CC V Comparator Input Voltage ange V I V Switch Collector Voltage V C) V Switch Emitter Voltage V PIN =V) V E) V Switch Collector to Emitter Voltage V CE) V Driver Collector Voltage V CDIVE) V Driver Collector Current Note ) I CDIVE) ma Switch Current I SW. A Power Dissipation KIAA P D KIAAF mw Operating emperature opr Storage emperature stg Note ) Maximum package power dissipation limits must be observed. BOCK DIAAM DIVE COECO COECO S Q Q Q I PK SENSE EMIE I PK OSCIAO COMPAAO IMIN CAPACIO.V EFEENCE EUAO COMPAAO INVEIN INPU ND /

3 EECICA CHAACEISICS V CC =.V, a=, unless otherwise specified) OSCIAO SECION CHAACEISIC SYMBO ES CONDIION MIN. YP. MAX. UNI Frequency f OSC V PIN =V, =.nf khz Charge Current I CH V CC =. V A Discharge Current I DISCH V CC =. V A Discharge to Charge Current atio I DISCH /I CH Pin V CC... Current imit Sense Voltage V IPKSENSE) I DISCH =I CH mv OUPU SECION Note ) CHAACEISIC SYMBO ES CONDIION MIN. YP. MAX. UNI Saturation Voltage, Darlington Connection V CESA) I SW =.A, Pins, Connection.. V Saturation Voltage Note ) V CESA) I SW =.A, Forced = PIN = to V CC.. V DC Current ain h FE I SW =.A, V CE =.A, Collector OffState Current I COFF) V CE =V. A COMPAAO SECION CHAACEISIC SYMBO ES CONDIION MIN. YP. MAX. UNI hreshold Voltage V H a=... V hreshold Voltage V H a= OW HIH..9 V hreshold Voltage ine egulation eg line V CC =. V.. mv Input Bias Current I IB V IN = na OA DEVICE CHAACEISIC SYMBO ES CONDIION MIN. YP. MAX. UNI Supply Current I CC Pin =V CC, Pin =ND, V CC =. V, =.nf, V PIN V H, remaining pins open. ma Note). ow duty cycle pulse techniques are used during test to maintain junction temperature as close to ambient temperature as possible.. If the output switch is driven into hard saturation nondarlington configuration) at low switch currents ma) and high driver currents ma), it may take up to. S for it to come out of saturation. his condition will shorten the off time at frequencies khz, and is magnified at high temperatures. his condition does not occur with a Darlington configuration, since the output switch cannot saturate. If a nondarlington configuration is used, the following output drive condition is recommended ; I C output Forced of output switch : I C driver.ma * * he resistor in the emitter of the driver device requires about.ma before the output switch conducts. /

4 APPICAION CICUI ) Stepup Converter µh S Q Q Q sc. IPK OSC N9 Vin V COMP..V EF E pf.k K CO Vout V/mA.µH V OU OPIONA FIE ES CONDIIONS ESUS ine egulation V IN =.V to V, I O =ma mv=.% oad egulation V IN =V, I O =ma to ma mv=.% Output ipple V IN =V, I O =ma mvpp Efficiency V IN =V, I O =ma.% Output ipple With Optional Filter V IN =V, I O =ma mvpp /

5 ) StepDown Converter S Q Q Q sc. IPK OSC N9 Vin V COMP..V EF E pf µh.k.k CO Vout.V/mA.µH V OU OPIONA FIE ES CONDIIONS ESUS ine egulation V IN =V to V, I O =ma mv=.% oad egulation V IN =V, I O =ma to ma.mv=.% Output ipple V IN =V, I O =ma mvpp Short Circuit Current V IN =V, =..A Efficiency V IN =V, I O =ma.% Output ipple With Optional Filter V IN =V, I O =ma mvpp /

6 ) Voltage Inverting Converter S Q Q Q sc. IPK OSC µh Vin.V O.V COMP..V EF E pf N9.K 9 µf CO Vout V/mA.µH V OU OPIONA FIE ES CONDIIONS ESUS ine egulation V IN =.V to.v, I O =ma.mv=.% oad egulation V IN =.V, I O =ma to ma.v=.9% Output ipple V IN =.V, I O =ma mvpp Short Circuit Current V IN =.V, =. 9mA Efficiency V IN =.V, I O =ma.% Output ipple With Optional Filter V IN =.V, I O =ma mvpp /

7 t, t on off C IMIN CAPACIO WAVEFOM OUPU ONOFF IME t onoff µs) V CC =.V Pin= Pin=ND a= C ton t off OSCIAO VOAE V OSC V) V CC =.V Pin= Pin=ND Pins,,=OPEN =.nf a= C mv/div OSCIAO IMIN CAPACIO pf) µs/div V CEsat) I E V CEsat) I C SAUAION VOAE V CEsat) V) V CC=.V Pins,,= Pins,=ND a= C SEE NOE ) SAUAION VOAE V CEsat) V)...9. DAINON CONNECION. V CC=.V. Pin=. Pins,,=ND a= C. SEE NOE ) FOCED β= EMIE CUEN I E A) COECO CUEN I C A) V IPKSENSE) a I CC V CC CUEN IMI SENSE VOAE V IPKSENSE) V) V CC =.V I chg =Idischg SUPPY CUEN I CC ma) =.nf PIN= Pin=ND AMBIEN EMPEAUE a C) SUPPY VOAE V CC V) /