Primary Regulators PQ1PF2 PQ1PF2 (Under Development) Primary Regulator for Switching Power Supply (30W Class) ■ Outline Dimensions (Unit : mm) 4.5±0.2 10.2MAX φ3.2±0.1 16.4±0.7 (1.5) 5-0.8±0.1 2.0 ¡Switching power supplies for VCRs ¡Switching power supplies for peripheral equipment of PCs (FDD/CD-ROM drive/HDD) PQ1PF2 (0.5) 3.2±0.5 4-(1.7) 4.4MIN 7.4±0.2 (24.6) ■ Applications 2.8±0.2 5.0±0.5 ¡5-terminal lead forming package (equivalent to TO-220) ¡Built-in oscillation circuit (oscillation frequency : TYP.100kHz) ¡Output for power supply : 30W class ¡Built-in overheat protection, overcurrent protection function 3.6±0.2 ■ Features (5.0) 8.2±0.7 · ( ) : Typical dimensions · Radius of lead forming portion R=TYP 1.0 1● ● 2● 3● 4● 5 1 Drain (VDS) 2 GND 3 Control (CA) 4 Feed back (FB) 5 Supply voltage (VCC) ■ Absolute Maximum Ratings *1 *2 Parameter Drain-GND (source) voltage Drain current Power supply voltage FB terminal input voltage CA terminal input current *3 Power dissipation *4 Junction temperature Operating temperature Storage temperature Soldering temperature *1 *2 *3 *4 (Ta=25˚C) Symbol VDS ID VCC VFB ICA PD1 PD2 Tj Topr Tstg Tsol Rating 500 3 35 4 2 1.5 18 150 -20 to +80 -40 to +150 260 (For 10s.) Unit V A V V mA W W ˚C ˚C ˚C ˚C Voltage between VCC terminal and GND terminal. Voltage between FB-terminal and GND terminal. PD1:No heat sink, PD2:With infinite heat sink Overheat protection may operate at 125=<Tj=<150˚C · Please refer to the chapter “ Handling Precautions ”. “ 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. ” PQ1PF2 Primary Regulators ■ Electrical Characteristics (Unless otherwise specified,conditions shall be VDS=10V,VCC=18V,VCA=OPEN,VFB=2.2V,RL=56Ω, Ta=25˚C) Parameter Drain-source onstate resistance Symbol RDS (ON) Drain-source leakage current IDSS fo ∆fo DMAX VFBL VFBH VFB (OCP) IFB VCAL VCAH VCA (ON/OFF) VCA (OVP) ICAIN ID (OCP) VCC (ON) VCC (OFF) Oscillation frequency Temperature change in oscillation frequency Maximum duty FB threshold voltage FB current CA threshold voltage CA sink current Overcurrent detecting level Operation starting voltage Operation stopping voltage Stand-by current ICC (ST) Output OFF-mode consumpion current ICC (OFF) Output-operating mode consumption current Charging current ICC (OP) ICA (CHG) Tj=0 to 125˚C Duty=0% Duty=DMAX VCA=6V VFB=GND Duty=0% Duty=DMAX VFB=1V,VCA=6V VDS=OPEN,VFB=OPEN VDS=OPEN,VFB=OPEN VDS=OPEN,VCC=14V, VFB=OPEN VDS=OPEN,VCA=GND VFB=OPEN Test Circuit CIN 100µF A + A VCC 5 ● 1 ● PQ1PF2 4 ● 3 ● 2 ● RL R2 A VFB A VCA VDS ■ Block Diagram g CA 3 VDS 1 VCC 5 20 Cut-off voltage detecting circuit OSC - 250 µA 90 42 2.6 -800 0.49 7.2 20 15.5 8.5 100 ±5 45 0.9 1.8 2.8 -620 0.9 1.8 0.6 7.7 36 1.8 17.0 9.3 110 50 3.1 -440 0.74 8.2 52 18.5 10.1 kHz % % V V V µA V V V V µA A V V - 100 150 µA - 0.6 1.8 mA -15 10 -10 18 -5 mA µA ,,, ,,, ,,, ,,, PD1 :No heat sink PD2 :With infinite heat sink PD2 5 RQ S + - 0 20 40 60 Ambient temperature Ta (˚C) 80 Note) Oblique line portion:Overheat protection may operate in this area. PWM DET - 10 0 -20 Constant voltage source OFF voltage detecting circuit FB 4 Unit Ω PD1 Low voltage malfunction prevention circuit Overload cut-off voltage detecting circuit MAX. 3.0 15 ← Overheat detection circuit TYP. 2.2 Fig. 2 Power Dissipation vs. Ambient Temperature 25 0.01µF MIN. - VCA=GND,VFB=OPEN Power dissipation PD (W) Fig.1 Conditions ID=1.3A VDS=500V,VCC=7V VCA=GND,VFB=GND Drive circuit Overcurrent detecting circuit 2 GND