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| PQ1CX12H2ZPQ PQ1CX12H2ZPQ Bootstrap system Chopper Regulator Features 1.Maximum switching current: 2.5A 2.High efficiency(efficiency88%[VIN=5V,VOUT=3.3V] 3.Built-in oscillation circuit (Oscillation frequency:TYP.150kHz) 5.Variable output voltage (Output variable range: Vref to 24V) 6.RoHS directive compliant 4.Built-in overheat, overcurrent protection functions Outline Dimensions 50.3 (Unit:mm) 0.150.1 0.05 8 7 6 5 Model No. 1CX12H S Q 1 2 3 4 Lot.No. (OLD DIN standerd) 1.270.03 1.50.1 0.995MAX Lead finish identification mark ( ) : Typical dimensions Applications 1.AV equipment 2.Digital OA equipment 0.40.1 Product mass:(0.08g) 0.050.05 1.550.15 Terminal VIN VB OADJ ON/OFF Control NC GND GND VOUT Absolute Maximum Ratings *1 *2 *3 (Ta =25C) *4 *5 *6 *7 Parameter Input voltage Boost terminal voltage Voltage between VB and VIN Malfunction input voltage Input-output voltage Output-GND voltage ON/OFF control voltage Switching current Power dissipation Junction temperature Operating temperature Storage temperature Soldering temperature Symbol VIN VB VB-I Vadj VI-O VOUT VC Isw PD Tj Topr Tstg Tsol Unit Rating V 33 V 33 V 15 V 7 V 34 V -1 V -0.3 to 20 A 2.5 W 0.9 C 150 C -30 to +85 -40 to +150 C 260(for 10s) C Lead finish:Lead-free solder plating (Composition: Sn2Bi) *1 Voltage between VIN and GND *2 Voltage between VB and GND *3 Voltage between VB and VIN *4 Voltage between VOUT and GND *5 Voltage between ON/OFF and GND *6 At the time of the PCB mounting *7 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.: OP06042 0.50.1 6.20.2 4.40.2 PQ1CX12H2ZPQ Electrical Characteristics Parameter Voltage ratio VOUT-VIN Output saturation voltage Reference voltage Load regulation Line regulation Efficiency Oscillation frequency Overcurrent detection level Maximum Duty Charge current Input threshold voltage ON threshold voltage Standby current Output OFF-state consumption current Minimum Input Voltage Minimum Boost Voltage Symbol DI-O Vsat VREF RegL RegI fo IL DMAX ICHG VTHL VTHH VTHON ISD IQS VIN(MIN) VBOOST(MIN) (VIN=5 V, Io=0.5 A,Vo=3.3V, Terminal No. 4 open and Ta=25C unless otherwise specified) Conditions - MIN. 15 TYP. - MAX. - Unit % V V % % % kHz A % A V V V A mA V V Isw=2.0A Io=0.5 to 2.0A VIN=5 to 20V Io=2.0 A 1.235 0.25 1.26 0.2 1 88 150 3.2 90 -10 1.3 2.3 0.8 120 5 0.4 1.285 1.5 2.5 135 2.55 83 Switching current peak Terminal 3 = 1.1 V Terminal 3,8:OPEN, Terminal 4 Duty=0 %,Terminal 3=0V,Terminal 4 Duty=DMAX,Terminal 3:OPEN,Terminal 4 Terminal 3 = 0V,Terminal 4 VIN=33V,Terminal 4 = 0V VIN=33V,Terminal 4 = 0.9V - 165 4.2 - 0.9 400 10 0.7 - VB-VOUT Voltage - - 4.5 3 Fig.1 Test Circuit DB VB VIN ISD A CB 8 3 VOUT Oadj ON/OFF 4 1 2 L IO V Iqs VIN + CIN 6 GND 7 GND R2 + CO Load A D ICHG R1 ON/OFF control logic 4 pin LOW HIG H OPEN Output OF F ON ON L:HK-08S080-3000(made by Toho Co.) D,DB:ERC80-004(made by Fuji electronics Co.) Fig.2 Power Dissipation vs.Ambient Temperature 1 Fig.3 Overcurrent Protection Characteristics (Typical Value) 5 PD : At the time of PCB mounting Power dissipation PD (W) Output voltage VO (V) 4 Tj=25C VIN=5V VO=3.3V 3 0.5 2 1 0 -30 -25 0 25 50 75 85 125 150 0 0 1 2 3 4 5 Ambient temperature Ta (C) Note)Oblique line portion:Overheat protection may operate in this area Output current IO (A) Sheet No.: OP06042 2 PQ1CX12H2ZPQ Fig.4 Efficiency vs. Input Voltage 100 95 90 85 VO=3.3V,IO=0.5A VO=5V,IO=0.5A VO=5V,IO=2A Fig.5 Output Saturation Voltage vs. Switching Current 0.4 Output saturation voltage VSAT (V) 0.3 80 VO=3.3V,IO=2A 0.2 75 70 65 60 0 5 10 15 20 25 0.1 0 0 0.5 1 1.5 2 2.5 Input voltage VIN (V) Switching current ISW (A) Fig.6 Stand-by Current vs. Input Voltage 250 Fig.7 Reference Voltage Fluctuation vs. Junction Temperature 1 Tj=25C 200 Reference voltage fluctuation (%) 0.5 150 0 100 -0.5 50 0 0 5 10 15 20 25 30 -1 -50 -25 0 25 50 75 100 125 Input voltage V IN (V) Junction temperature Tj (C) Fig.8 Load Regulation vs. Output Current 2 Fig.9 Line Regulation vs. Input Voltage 2 Load regulation RegL (%) Line regulation RegI (%) 1.5 Tj=25C VIN=12V VO=3.3V Tj=25C VO=3.3V 1.5 IO=0.5A 1 1 0.5 0.5 0 0 -0.5 0 0.5 1 1.5 2.0 -0.5 0 5 10 15 20 Output current IO (A) Input voltage VIN (V) Sheet No.: OP06042 3 PQ1CX12H2ZPQ Fig.10 Oscillation Frequency Fluctuation vs. Junction Temperature Oscillation frequency fluctuation (%) 10 Fig.11 Overcurrent Detecting Level Fluctuation vs. Junction Temperature Overcurrent detecting level fluctuation (%) 10 5 5 0 0 -5 -5 -10 -50 -25 0 25 50 75 100 125 -10 -50 -25 0 25 50 75 100 125 Junction temperature Tj (C) Junction temperature Tj (C) Fig.12 Threshold Voltage vs. Junction Temperature Threshold voltage VTHON,VTHL,VTHH (V) 3 Fig.13 Operating Dissipation Current vs. Input Voltage Operating dissipation current IQ' (mA) 10 8 VTHH 2.5 2 Tj=25 C VO=3.3 V IO=2 A VTHL 1.5 1 0.5 0 -25 6 4 No Load IO=0.5 A 2 0 0 5 10 15 20 VTHON 0 25 50 75 100 125 Junction temperature Tj (C) Input voltage VIN(V) Fig.14 PD-Ta rating(Typical value) 1 GND pattern copper foil area 120mm2 GND pattern Power dissipation PD(W) GND pattern copper foil area 15mm2 0.5 Mounting PCB 0 -30 -25 0 25 50 75 85 100 125 Ambiet temperature Ta(C) MaterialGlass-cloth epoxy resin Size 30mm x 30mm x 1mm GND pattern copper foil area120mm2,35m Sheet No.: OP06042 4 PQ1CX12H2ZPQ Block Diagram VIN 1 8 VOUT VB 2 Drive Circuit Constant Voltage PWM COM P. + ON/OFF control 4 ON/OFF Overcurrent Detection Circuit Q F/F S R Oscillation Circuit - Soft Start ERROR A M P. 3 + VADJ Vref Overheat Detection Circuit 6 fo Conversion Circuit 7 GND GND Step-down voltage output circuit diagram DB VB VIN 1 2 CB 1F 8 VOUT Oadj 3 ON/OFF 4 L V=3.3 V + VIN=5 V CIN 220F 7 6 GND GND 30H R2= 3.9 k R1= 2.4 k + Load CO 470F Sheet No.: OP06042 5 |
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