PQ1CZ21H2ZxH PQ1CZ21H2ZxH Low Dissipation Current at OFF-state Chopper Regulator ■ Outline Dimensions Features (Unit:mm) 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 2.3±0.5 6.6MAX. (0.5) 5.2±0.5 3 (1.7) 5.5±0.5 Lead finish identification mark H 2.5MIN. 9.7MAX. Epoxy resin 1CZ21H (1.9) (0 to 0.25) 0.5 +0.2 –0.1 (0.5) 4–(1.27) ( ) : Typical dimensions Product mass:(0.3g) 1 Applications 2 3 4 5 ①VIN ②VOUT ③COM(Connected with heat sink) ④Oadj ⑤ON/OFF control 1.Facsimiles 2.Printers 3.Switching power supplies 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=125°C to 150°C, 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 PQ1CZ21H2ZxH Electrical Characteristics (Unless otherwise specified,condition shall be VIN=12V,IO=0.2A,VO=5V,ON-OFF terminal=2.7V,Ta=25℃) Parameter Symbol Output saturation voltage Reference voltage Reference voltage temperature fluctuation Conditions ISW=1A VSAT Vref － Tj=0 to 125℃ IO=0.2 to 1A VIN=8 to 35V IO=1A |RegL| |RegI| 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 － Tj=0 to 125℃ Switching current peak ④ terminal=0V,⑤ terminal fO IL VTH(ON) ⑤ terminal=2.7V ⑤ terminal=0.4V IC(ON) IC(OFF) ISD Output OFF-state dissipation current VIN=40V,⑤ terminal=0V VIN=40V,④ terminal=3V IQS MIN. TYP. MAX. Unit － 1.235 0.9 1.26 1.5 1.285 V V － － － － ±0.5 0.1 0.5 82 － 1.5 2.5 % % % % 80 120 － 1.55 100 ±3 2 0.8 － － － － － － 2.6 kHz % A 1.5 2 V － － － 200 2 1 8 12 mA Fig.1 Test Circuit ④ ① ISD L IO ② VO PQ1CZ21H2ZxH A R2 ⑤ Iqs + + VIN A CIN IC(ON) ③ Load CO D IC (OF F ) 470 F R1 1k ON/OFF control logic 5 pin LOW HIG H OPEN L：HK-14D100-2110(made by Toho Co.) D：ERCF80-004(made by Fuji electronics Co.) Output OFF ON OFF Fig.2 Power Dissipation vs.Ambient Temperature Fig.3 Overcurrent Protection Characteristics (Typical Value) 8 7 Ta=25°C VIN=12V VO=5V 6 PD:With infinite heat sink Output voltage VO (V) Power dissipation PD (W) 10 5 5 4 3 2 1 0 -40 -25 0 0 25 50 75 85 100 125 0 150 0.5 1 1.5 2 2.5 3 3.5 4 Output current IO (A) Ambient temperature Ta (°C) Note) Oblique line portion:Overheat protection may operate in this area Sheet No.: OP06040A 2 PQ1CZ21H2ZxH Fig.4 Efficiency vs. Input Voltage 100 Fig.5 Output Saturation Voltage vs. Switching Current 1.2 Efficiency η(%) 90 80 VO=5V, IO=1A 70 VO=5V, IO=0.2A 60 50 0 10 20 30 Tj=25°C Output saturation voltage VSAT (V) VO=12V, IO=1A Tj=25°C VO=12V, IO=0.2A 1 0.8 0.6 0.4 0.2 0 0 40 Input voltage VIN (V) 1.5 2 1 2 Load regulation RegL(%) VIN=12V VO=5V 1 0 -1 -2 -50 -25 0 25 50 75 100 Tj=25°C VIN=12V VO=5V 0.5 0 –0.5 125 0 0.2 Junction temperature Tj (°C) Oscillation frequency fluctuation (%) 0.5 0 Tj=25°C VO=5V IO=0.2A 0 5 10 15 20 25 30 35 0.6 0.8 1 1.2 Fig.9 Oscillation Frequency Fluctuation vs. Junction Temperature 1 -0.5 0.4 Output current IO (A) Fig.8 Line Regulation vs. Input Voltage Line regulation RegI (%) 1 Fig.7 Load Regulation vs. Output Current Fig.6 Reference Voltage Fluctuation vs. Junction Temperature Reference voltage fluctuation (%) 0.5 Switching current ISW (A) 2 0 -2 -4 -6 -8 -10 -50 40 Input voltage VIN (V) VIN=12V VO=5V -25 0 25 50 75 100 125 Junction temperature Tj (°C) Sheet No.: OP06040A 3 PQ1CZ21H2ZxH Fig.11 On Threshold Voltage vs. Junction Temperature 2 6 ON threshold voltage VTH (ON) (V) Overcurrent detecting level fluctuation (%) Fig.10 Overcurrent Detecting Level Fluctuation vs. Junction Temperature 4 2 0 -2 -4 -6 -8 -50 -25 0 25 50 75 100 VIN=12V 1.5 1 0.5 0 -50 125 Junction temperature Tj (°C) -25 0 25 50 75 100 125 Junction temperature Tj (°C) Operating dissipation current IQ' (mA) Fig.12 Operating Dissipation Current vs. Input Voltage 10 Tj=25°C 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 Power dissipation PD (W) 2 1.5 Cu area 180mm2 Cu area 100mm2 1 Mounting PCB Cu area 70mm2 PCB Cu Cu area 36mm2 0.5 0 -40 Material : Glass-cloth epoxy resin Size : 50×50×1.6mm Cu thickness : 35μm -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 + _ ON/ OFF 5 ① ② ③ ④ ⑤ F/F Overcurrent detection circuit VIN VOUT COM (Common to heat sink) Oadj ON/OFF control Q R PWM COMP. OSC. S ERROR AMP. _ + 4 Vref Overheat detection circuit 3 Fig.15 Step Down Type Circuit Diagram ④ ① L 210μH ② VO 5V PQ1CZ21H2ZxH R2 3kΩ ⑤ + VIN 8～35V + ③ CIN Load CO 470μF D 100μF R1 1kΩ ON/OFF control signal Fig.16 Polarity Inversion Type Circuit Diagram 100k～ 680kΩ 0.47～1μF ④ ① L 130μH ② PQ1CZ21H2ZxH R2 3kΩ ⑤ VIN 5～30V + + CIN 100μF ③ D R1 1kΩ Load CO 2200μF VO -5V ON/OFF control signal 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