PQ2CF1 SHARP | Alldatasheet

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“ In the absence of confirmation by device specification sheets,SHARP takes no responsibility for any defects that may occur in equipment using any SHARP devices shown in catalogs,data books,etc.Contact SHARP in order to obtain the latest version of the device specification sheets before using any SHARP's device. ” Chopper Regulators PQ2CF1 PQ2CF1 Parameter Symbol Rating Unit V IN V SW V ADJ V C ISW PD1 PD2 T j T opr T stg T sol 2.5 1.5 150 -20 to +80 -40 to +150 260 (For 10s) V V V V A W W Input voltage Switching voltage Error input voltage ON/OFF control voltage Switching current Power dissipation (No heat sink) Power dissipation (With infinite heat sink) Junction temperature Operating temperature Storage temperature Soldering temperature *1 Voltage between VIN terminal and COM terminal *2 Voltage between VSW terminal and COM terminal *3 Voltage between VC terminal and COM terminal *4 Overheat protection may operate at 125=<Tj=<150˚C. n Absolute Maximum Ratings (Ta=25˚C)

  • Please refer to the chapter“ Handling Precautions ”. n Outline Dimensions (Unit : mm) PQ2CF1

1 VSW

2 VIN

3 COM

5 OADJ

(24.6) 10.2MAX 7.4±0.2 3.6±0.2 φ3.2±0.1 5-0.8±0.1 4-(1.7) 4.5±0.2 2.8±0.2 16.4±0.7 2.0 3.2±0.5 l1l2l3l4l5 5.0±0.5 (5.0) 8.2±0.7 (0.5) (1.5) 4.4MIN

  • ( ) : Typical value
  • Radius of lead forming portion:R=TYP.1.0 n Features \ Maximum switching current : 2.5A \ Built-in soft start function \ Built-in oscillation circuit (oscillation frequency : TYP.50kHz) \ Built-in overheat protection,overcurrent protection function \ Variable output voltage (4.5 to 40V) [Possible to choose step up output/flyback method acording to external connection circuit] n Applications \ Personal computers/Word processors \ Printers \ Switching power supplies \` Facsimiles (Under Development)

Parameter Symbol Conditions UnitMAX.TYP.MIN. 1.235 2.7 -80 -150 0.55 1.65 0.3 0.1 0.6 1.26 ±0.5 0.1 0.2 4.4 -50 -100 0.75 1.85 0.45 0.2 270 4.0 1.2 1.285 1.5 1.5 5.8 -20 -50 0.95 2.05 0.6 0.3 400 n Electrical Characteristics (Unless otherwise specified, conditions shall be VIN=5V,Io=0.2A,VC =12V, Ta=25˚C) V SAT V ref ΔV ref |RegL| |RegI| η fo Δfo D MAX IL ICHG1 ICHG2 V THL V CH V CL V THON ISD IqS V V kHz A µA µA V V V V µA mA ISW =2A T j=0 to 125˚C IO =70 to 570mA V IN=3.5 to 10V IO =0.5A T j=0 to 125˚C 5 terminal is open Duty=50%, 4 terminal=0V, 4 terminal 4 terminal=0.5V, 4 terminal Duty=0%, 4 terminal terminal is open, 5 terminal=1.1V 1 terminal is open, 5 terminal=1.4V 1 terminal is open, 4 terminal V IN=35V, 4 terminal=0V,No L,CO , D,R 1,R2 V IN=35V, 4 terminal=0.5V,No L, C O ,D,R1,R2 Output saturation voltage Reference voltage Temperature change in reference voltage Load regulation Line regulation Efficiency Oscillation frequency Oscillation frequency temperature fluctuation Maximum duty Over current detecting level Charge current 1 Charge current 2 Input threshold voltage Vc terminal low level voltage Vc terminal high level voltage On threshold voltage Stand-by current Output OFF-state consump-tion current Fig.1 Test Circuit Fig.2 Power Dissipation vs. Ambient Temperature /,/, /,/, /,/, /,/, -20 0 20 40 60 100 80 PD2 PD1 Power dissipation PD (W) Ambient temperature Ta (˚C) PD1 :No heat sink PD2 :With infinite heat sink Note) Oblique line portion : Overheat protection may operate in this area. V IN ISD IQS C IN 100µF 0.047µF Load C O 470µF R 1 1kΩ R 2 IO V O l1l2 l4 l5 A L 90µH L : HK-12S100-9000 (made by Toho Co.) D : ERC80-004 (made by Fuji electronics Co.) D PQ2CF1 1kΩ n Block Diagram VSW VIN F/F QR SVoltage regulator circuit COMP. V ref OADJ VC COM ON/OFF circuit Soft start Oscillator Low voltage malfunction prevention circuit Overcurrent protection circuit Overheat protection circuit Error amp. Amp.

n Step Up Type Circuit Diagram (12V output) n Flyback Method Circuit Diagram V IN C IN 100µF 0.47µF Load C O 470µF R 1 1kΩ R 2 8.56kΩ IO V O 12V l1l2 l4 l5 L 90µH D ON/OFF control 1kΩ LoadV IN C IN 100µF 0.47µF C O 470µF R 1 1kΩ R 2 IO V O l1l2 l4 l5 D 1kΩ PQ2CF1