PQ30RV31

PQ30RV31 SHARP | Alldatasheet

Document overview

• Manufacturer or author: Provided By ALLDATASHEET.COM(FREE DATASHEET DOWNLOAD SITE)
• PDF pages: 4

Technical content

“ 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. ” Low Power-Loss Voltage Regulators PQ30RV31 n Outline Dimensions (Unit : mm) PQ30RV31 Parameter Symbol Rating Unit V IN V ADJ IO PD1 PD2 T j T opr T stg T sol 2.0 150 -20 to +80 -40 to +150 260 (For 10s) V V A W W Input voltage Output adjustment terminal voltage Output current Power dissipation (No heat sink) Power dissipation (With infinite heat sink) Junction temperature Operating temperature Storage temperature Soldering temperature *1 All are open except GND and applicable terminals. *2 Overheat protection function may operate at 125=<Tj=<150˚C. n Absolute Maximum Ratings (Ta=25˚C) PQ30RV31

1 DC input (VIN)

2 DC output (VO )

3 GND

4 Output voltage

terminal (V ADJ ) Internal connection diagram Specific IC 29.1MAX 10.2MAX 7.4±0.2 3.6±0.2 φ3.2±0.1 +0.3 -04-1.4 +0.2 -0.1 4-0.6 13.5MIN 3-(2.54) 4.5±0.2 2.8±0.2 15.6±0.5 4.8MAX (1.5) (0.5) l1 l2 l3 l4 n Features \ Maximum output current : 3A \ Compact resin full-mold package. \ Low power-loss (Dropout voltage : MAX.0.5V) \ Variable output voltage (setting range : 1.5 to 30V) \ Built-in ON/OFF control function. n Applications \ Power supply for print concentration control of word processors \ Series power supply for motors and solenoid \ Series power supply for VCRs and TVs Variable Output Low Power-Loss Voltage Regulator

• Please refer to the chapter“ Handling Precautions ”.

Low Power-Loss Voltage Regulators PQ30RV31 Parameter Symbol Conditions V IN V O R egL R egI RR V ref T cV ref V i-O Iq Input voltage output voltage Load regulation Line regulation Ripple rejection Reference voltage Temperature coefficient of reference voltage Dropout voltage Quiescent current UnitMAX.TYP.MIN. 4.5 1.5 1.225 I O =5mA to 3A V IN=11 to 21V, IO =0.5mA Refer to Fig. 2 T j=0 to 125˚C,IO =5mA *3, IO =3A *3, IO =2A IO =0 0.5 0.5 1.25 ±1.0 0.3 0.2 2.0 2.5 1.275 1.0 0.5 n Electrical Characteristics *3 Input voltage shall be the value when output voltage is 95% in comparison with the initial value. (Unless otherwise specified, condition shall be VIN=12V, Vo=10V, Io=1.5A, R1=390Ω , Ta=25˚C) V V dB V %/˚C V mA Fig.2 Test Circuit of Ripple Rejection Fig.1 Test Circuit l2l1 A V V A V IN Iq 390Ω IO V O R L0.33µF 47µF 47µF V ref R 2 R 1 l2l1 l4V IN ei eo 390Ω IO R L0.33µF R 2 R 1 IO =0.5A, VIN=12V, VO =10V f=120Hz (sine wave) e i=0.5Vrms RR=20 log (ei/eo) R 1 R 2 R 1 [R1=390Ω , Vref =1.25V] Fig.4 Overcurrent Protection Characteristics (Typical Value) Fig.3 Power Dissipation vs. Ambient Temperature 0 50 100 150 PD2 PD1 Power dissipation PD (W) Ambient temperature Ta (˚C) PD1 :No heat sink PD2 :With infinite heat sink 100Relative output voltage (%) Output current IO (A) Note) Oblique line portion:Overheat protection may operate in this area.

Low Power-Loss Voltage Regulators PQ30RV31 Fig.6 Output Voltage vs. Input VoltageFig. 5 Output Voltage Adjustment Characteristics(Typical value) Fig.7 Dropout Voltage vs. Junction Temperature Fig.8 Ripple Rejection vs. Input Ripple Frequency 101 102 103 104 105 R 2 (Ω ) R 1 390Ω Output voltage VO (V) 51 0 1 5 2 0 R L =∞ R 1=390Ω ,R2=2.7kΩ ,Tj=25˚C R L =3.3Ω Output voltage VO (V) Input voltage VIN (V) -25 0 25 50 IO =3A 0.5A 100 125 0.1 0.2 0.3 0.4 0.5 0.6 0.7 R 1=390Ω ,R2=2.7kΩ V IN ; 0.95VO Junction temperature Tj (˚C) Dropout voltage Vi-O (V) Fig.10 Output Peak Current vs. Dropout Voltage(Typical) Fig.9 Ripple Rejection vs. Output Current 01 2 3 C ref=3.3µF No Cref T j=25˚C R 1=390Ω ,R2=2.7kΩ V IN=12V,ei=0.5Vrms ,f=120Hz Output current IO (A) Ripple rejection RR (dB) 01 2 3 456789 1 0 4.5 5.5 6.5 R 1=390Ω ,R2=2.7kΩ ,Ta=25˚C Output peak current IOP (A) Dropout voltage Vi-O (V) Input ripple frequency f (kHz) Ripple rejection RR (dB) 0.1 1 10 100 1000 C ref=3.3µF No Cref T j=25˚C,VIN=12V R 1=390Ω ,R2=2.7kΩ IO =0.5A,ei=0.5Vrms

Low Power-Loss Voltage Regulators PQ30RV31 n ON/OFF Operation Fig.8 Ripple Rejection vs. Input Ripple Frequency -25 100 7550250 4.5 5.5 6.5 V IN=15V,R 1=390Ω ,R2=2.7kΩ Output peak current IOP (A) Dropout voltage Vi-O (V) V C High:Output OFF Low :Output ON D 2 R 3R 1 R 2 C O V O R L V ADJ D 1 C IN V IN R 1 Equivalent Circuit in OFF-state R 2 R L D 2 V O ’ V ADJ R D \ ON/OFF operation is available by mounting externally D2 and R3. \ When V ADJ is forcibly raised above VREF (1.25V TYP) by applying the external signal, the output is turned off (pass transistor of regulator is turned off. When the output is OFF, VADJ must be higher then VREF MAX., and at the same time must be lower than maximum rating 7V. In OFF-state, the load current flows to R L from VADJ through R2. Therefore the value of R2 must be as high as possible. \` V O '=VADJ X R L/ (RL+R 2) occurs at the load. OFF-state equivalent circuit R1 up to 10kΩ is allowed. Select as high value of RL and R2 as possible in this range. In some case, as output voltage is getting lower (VO <1V), impedance of load resistance rises. In such condition, it is sometime impossible to obtain the minimum value of VO '. So add the dummy resistance indicated by RD in the figure to the circuit parallel to the load.