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| www..com PQ1CZ21H2ZxH PQ1CZ21H2ZxH Low Dissipation Current at OFF-state Chopper Regulator Features 1.Maximum switching current: 1.5A 2.Low dissipation current at OFF-state(Iqs:Max.1mA) 3.Built-in oscillation circuit (Oscillation frequency:TYP.100kHz) 4.Built-in overheat, overcurrent protection functions 5.Variable output voltage (Output variable range: Vref to 35V/-Vref to -30V) [Possible to select step-down output/inversing output according to external connection circuit] 6.P Q 1CZ21H2ZZH: Sleeve-packaged product P Q 1CZ21H2ZPH: Tape-packaged product 7.RoHS directive compliant Outline Dimensions (Unit:mm) 6.6MAX. 5.20.5 3 2.30.5 (0.5) Epoxy resin 9.7MAX. 5.50.5 1CZ21H H Lead finish identification mark 2.5MIN. (1.7) (0 to 0.25) 0.5 +0.2 -0.1 4-(1.27) (0.5) ( ) : Typical dimensions Product mass:(0.3g) VIN VOUT COM(Connected with heat sink) Oadj ON/OFF control Applications 1.Facsimiles 2.Printers 3.Switching power supplies 1 2 3 4 5 Absolute Maximum Ratings Parameter Symbol *1 VIN Input voltage Error input voltage VADJ Input - output voltage VI-O *2 Output - COM voltage VOUT *3 VC ON/OFF control voltage ISW Switching current *4 Power dissipation PD *5 Junction temperature Tj Operating temperature Topr Storage temperature Tstg Soldering temperature Tsol (Ta=25) Rating Unit 40 V 7 V 41 V -1 V -0.3 to +40 V 1.5 A 8 W 150 -40 to +85 -40 to +150 260(10s) Lead finish:Lead-free solder plating (Composition: Sn2Cu) *1 Voltage between VIN terminal and COM terminal *2 Voltage between VOUT terminal and COM terminal *3 Voltage between ON/OFF control and COM terminal *4 PD:With infinite heat sink *5 There is case that over heat protection function operates at the temperature Tj=125C to 150C, so this item cannot be used in this temperature range. Notice The content of data sheet is subject to change without prior notice. 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 device specification sheets before using any SHARP device. 1 Sheet No.: OP06040A (1.9) PQ1CZ21H2ZxH Electrical Characteristics Parameter Output saturation voltage Reference voltage Reference voltage temperature fluctuation Load regulation Line regulation Efficiency Oscillation frequency Oscillation frequency temperature fluctuation Overcurrent detecting level ON threshold voltage ON-state current for control OFF-state current for control Stand-by current Output OFF-state dissipation current (Unless otherwise specified,condition shall be VIN=12V,IO=0.2A,VO=5V,ON-OFF terminal=2.7V,Ta=25) Symbol VSAT Vref |RegL| |RegI| fO IL VTH(ON) IC(ON) IC(OFF) ISD IQS Conditions ISW=1A Tj=0 to 125 IO=0.2 to 1A VIN=8 to 35V IO=1A Tj=0 to 125 Switching current peak terminal=0V, terminal terminal=2.7V terminal=0.4V VIN=40V, terminal=0V VIN=40V, terminal=3V MIN. 1.235 80 1.55 0.8 TYP. 0.9 1.26 0.5 0.1 0.5 82 100 3 2 1.5 8 MAX. 1.5 1.285 1.5 2.5 120 2.6 2 200 2 1 12 mA Unit V V % % % % kHz % A V Fig.1 Test Circuit ISD L IO VO A Iqs PQ1CZ21H2ZxH R2 + VIN CIN + A IC(ON) IC (OF F ) D R1 CO Load 470 F 1k ON/OFF control logic 5 pin LOW HIG H OPEN Output OFF ON OFF LHK-14D100-2110(made by Toho Co.) DERCF80-004(made by Fuji electronics Co.) Fig.2 Power Dissipation vs.Ambient Temperature 10 Fig.3 Overcurrent Protection Characteristics (Typical Value) 7 Power dissipation PD (W) Output voltage VO (V) 8 PD:With infinite heat sink 6 5 4 3 2 1 Ta=25C VIN=12V VO=5V 5 0 -40 -25 0 0 25 50 75 85 100 125 150 0 0.5 1 1.5 2 2.5 3 3.5 4 Ambient temperature Ta (C) Note) Oblique line portion:Overheat protection may operate in this area Output current IO (A) Sheet No.: OP06040A 2 PQ1CZ21H2ZxH Fig.4 Efficiency vs. Input Voltage 100 Fig.5 Output Saturation Voltage vs. Switching Current 1.2 Output saturation voltage VSAT (V) VO=12V, IO=1A Tj=25C VO=12V, IO=0.2A Tj=25C 1 0.8 0.6 0.4 0.2 0 0 90 Efficiency (%) 80 VO=5V, IO=1A 70 VO=5V, IO=0.2A 60 50 0 10 20 30 40 0.5 1 1.5 2 Input voltage VIN (V) Switching current ISW (A) Fig.6 Reference Voltage Fluctuation vs. Junction Temperature Reference voltage fluctuation (%) 2 Fig.7 Load Regulation vs. Output Current 1 1 Load regulation RegL(%) VIN=12V VO=5V Tj=25C VIN=12V VO=5V 0.5 0 0 -1 -2 -50 -25 0 25 50 75 100 125 -0.5 0 0.2 0.4 0.6 0.8 1 1.2 Junction temperature Tj (C) Output current IO (A) Fig.8 Line Regulation vs. Input Voltage 1 Fig.9 Oscillation Frequency Fluctuation vs. Junction Temperature Oscillation frequency fluctuation (%) 2 0 -2 -4 -6 -8 -10 -50 VIN=12V VO=5V Line regulation RegI (%) 0.5 0 Tj=25C VO=5V IO=0.2A -0.5 0 5 10 15 20 25 30 35 40 -25 0 25 50 75 100 125 Input voltage VIN (V) Junction temperature Tj (C) Sheet No.: OP06040A 3 PQ1CZ21H2ZxH Fig.10 Overcurrent Detecting Level Fluctuation vs. Junction Temperature Overcurrent detecting level fluctuation (%) 6 Fig.11 On Threshold Voltage vs. Junction Temperature 2 ON threshold voltage VTH (ON) (V) 4 2 0 -2 -4 -6 -8 -50 -25 0 25 50 75 100 125 VIN=12V 1.5 1 0.5 0 -50 -25 0 25 50 75 100 125 Junction temperature Tj (C) Junction temperature Tj (C) Fig.12 Operating Dissipation Current vs. Input Voltage Operating dissipation current IQ' (mA) 10 Tj=25C VO=5V 9 IO=1A 8 IO=0.2A 7 No load 6 5 0 10 20 30 40 Input voltage VIN (V) Fig.13 Power Dissipation vs. Ambient Temperature (Typical Value) Cu area 740mm2 2 Power dissipation PD (W) 1.5 Cu area 180mm2 Cu area 100mm2 Mounting PCB PCB Cu 1 Cu area 70mm2 Cu area 36mm2 0.5 0 -40 Material : Glass-cloth epoxy resin Size : 50x50x1.6mm Cu thickness : 35m -20 0 20 40 60 80 85 100 120 125 Ambient temperature Ta (C) Sheet No.: OP06040A 4 PQ1CZ21H2ZxH Fig.14 Block Diagram 1 2 Voltage regulator + _ 5 PWM COMP. ON/ OFF Overcurrent detection circuit F/F Q S VIN VOUT COM (Common to heat sink) Oadj ON/OFF control R OSC. ERROR AMP. _ + Vref 4 Overheat detection circuit 3 Fig.15 Step Down Type Circuit Diagram PQ1CZ21H2ZxH L 210H VO 5V VIN 835V CIN 100F + R2 3k + CO 470F R1 1k Load D ON/OFF control signal Fig.16 Polarity Inversion Type Circuit Diagram 0.471F 100k 680k PQ1CZ21H2ZxH L 130H VIN 530V + CIN 100F R2 3k + Load D R1 1k CO 2200F VO ON/OFF control signal -5V In case that polarity is reverse, depending on the conditions,there is cases that output voltage can not gain, please use this device after confirming the output voltage at the actual conditions. Sheet No.: OP06040A 5 |
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