Primary Regulators PQ1PD1 PQ1PD1 (Under Development) Primary Regulator for Switching Power Supply (100W Class) ■ Features ■ Outline Dimensions ¡5 - terminal lead forming package (equivalent to TO-3P) ¡Built-in oscillation circuit (oscillation frequency : 100kHz) ¡Output for power supply : 100W class ¡Built-in overheat protection, overcurrent protection function (Unit : mm) MAX 17 4.5±0.2 φ3.2 ■ Applications 8.0±0.2 23.5±0.7 2.0±0.2 PQ1PD1 5.0 (33.0) ¡Switching power supplies for word processors ¡Switching power supplies for personal computers ¡Switching power supplies for TVs 4-(2.54) 1 ● 2 ● 3 ● 4 ● 5 ● MIN 5 (0.6) (0.5) 3.2±0.5 8.2±0.7 ( ) : Typical dimensions 1 Drain (VDS) 2 GND 3 Control (CA) 4 Feed back (FB) 5 Supply voltage (VCC) ■ Absolute Maximum Ratings *1 *2 *3 *4 *1 *2 *3 *4 Parameter Drain-GND(source)voltage Drain current Power supply voltage FB terminal input voltage CA terminal input current Power dissipation Junction temperature Operating temperature Storage temperature Soldering temperature (Ta=25˚C) Symbol VDS ID VCC VFB ICA PD Tj Topr Tstg Tsol Rating 500 8 35 4 2 45 150 -20 to +80 -40 to +150 260 (For 10s) Unit V A V V mA W ˚C ˚C ˚C ˚C Voltage between VCC terminal and GND terminal. Voltage between FB-terminal and GND terminal. With infinite heat sink, Refer to Fig. 2 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. ” Primary Regulators PQ1PD1 ■ 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 Drain-source leakage current Oscillation frequency Temperature change in oscillation frequency Declining oscillation frequency Maximum duty Symbol RDS (ON) IDSS fo ∆fo foL DMAX VFBL VFB FC VFBH VFB OCP IFB VCAL VCAH VCA(ON/OFF) VCA FC VCA(OVP) ICAIN ID(OVP) VCC(ON) VCC(OFF) ICC(ST) ICC(OFF) ICC(OP) ICA(CHG) FB threshold voltage FB current CA threshold voltage CA sink current Overcurrent detecting level Operation starting voltage Operation stopping voltage Stand-by current Output OFF-mode consumption current Output-operating mode consumption current Charging current Conditions ID=2A VDS=500V,VCC=7V Tj=0 to 125˚C VCA=5V 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, VDS=OPEN,VCA=GND VCA=GND,VFB=OPEN A + A VCC 5 ● 1 ● PQ1PD1 4 ● 3 ● 2 ● RL A VFB A VCA VDS ■ Block Diagram agram CA 3 VDS 1 VCC 5 Power dissipation PD (W) 50 0.01µF 40 30 20 10 ← Low voltage malfunction prevention circuit Cut-off voltage detecting circuit 0 -20 MAX. 1.0 250 110 43 50 3.1 -440 0.74 8.2 52 18.5 10.1 150 1.8 24 -5 Unit Ω µA kHz % kHz % V V V V µA V V V V V µA A V V µA mA mA µA ,,, ,,, ,,, 0 20 40 60 80 Ambient temperature Ta (˚C) Note) Oblique line portion : Overheat protection may operate in this area. Constant voltage source OFF voltage detecting circuit Frequency conversion circuit Overheat detection circuit FB 4 TYP. 0.75 100 ±5 33 45 0.9 1.1 1.8 2.8 -620 0.9 1.8 0.6 4.3 7.7 36 4.8 17.0 9.3 100 0.6 12 -10 Fig. 2 Power Dissipation vs. Ambient Temperature Fig. 1 Test Circuit CIN 100µF MIN. 90 23 42 2.6 -800 0.49 7.2 20 15.5 8.5 -15 OSC RQ S PWM Overload cut-off voltage detecting circuit + - DET Drive circuit Overcurrent detecting circuit 2 GND