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| Chopper Regulators PQ2CF1 PQ2CF1 TO-220 Package, Step Up Output Chopper Regulator s q q Features s Outline Dimensions 10.2MAX 3.20.1 7.40.2 3.60.2 (Unit : mm) 4.50.2 2.80.2 5-0.80.1 4-(1.7) (0.5) 3.2=0.5 s q q Applications (5.0) 8.20.7 Personal computers / Word processors Printers q Switching power supplies q Facsimiles 12345 * ( ) : Typical value * Radius of lead forming portion : R=TYP.1.0 1 2 3 4 5 VSW VIN COM VC OADJ s 1 2 Absolute Maximum Ratings Parameter Input voltage Switching voltage Error input voltage ON/OFF control voltage Switching current Power dissipation (No heat sink) Power dissipation (With infinite heat sink) Junction temperature Operating temperature Storage temperature Soldering temperature Symbol VIN VSW VADJ VC ISW PD1 PD2 Tj Topr Tstg Tsol (Ta=25C) Rating 35 35 7 7 2.5 1.5 15 150 -20 to +80 -40 to +150 260 (For 10s) Unit V V V V A W W C C C C 3 4 1 2 3 4 Voltage between VIN terminal and COM terminal Voltage between VSW terminal and COM terminal Voltage between VC terminal and COM terminal Overheat protection may operate at 125<=Tj<=150C. * Please refer to the chapter " Handling Precautions ". 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. Internet Internet address for Electronic Components Group http://sharp-world.com/ecg/ 4.4MIN Maximum switching current: 2.5A Built-in soft start function q Built-in oscillation circuit (oscillation frequency: TYP. 50kHz) q Built-in overheat protection,overcurrent protection function q Variable output voltage(4.5 to 35V) [Possible to choose step up output / flyback method according to external connection circuit] (24.6) PQ2CF1 (1.5) 2.0 5.00.5 16.40.7 Chopper Regulators PQ2CF1 (Unless otherwise specified, conditions shall be VIN=5V,Io=0.2A,Vo=12V, Ta=25C) Symbol VSAT Vref Conditions ISW=2A -- Tj=0 to 125C IO=70 to 570mA VIN=3.5 to 10V IO=0.5A -- Tj=0 to 125C 5 terminal is open Duty=50%, 4 terminal=0V, 4 terminal 4 terminal=0.5V, 4 terminal Duty=0%, 4 terminal 1 terminal is open, 5 terminal=1.1V 1 terminal is open, 5 terminal=1.4V 1 terminal is open, 4 terminal VIN=35V, 4 terminal=0V,No L,CO, D,R1,R2 VIN=35V, 4 terminal=0.5V,No L, CO,D,R1,R2 MIN. -- 1.235 -- -- -- -- 40 -- 90 2.7 -80 -150 0.55 1.65 0.3 0.1 -- -- Vsw 1 s Electrical Characteristics Parameter Output saturation voltage Reference voltage Reference voltage temperature fluctuation Load regulation Line regulation Efficiency Oscillation frequency Oscillation frequency temperature fluctuation Maximum duty Over current detecting level Charge current 1 Charge current 2 Input threshold voltage Vc terminal low level voltage Vc terminal high level voltage On threshold voltage Stand-by current Output OFF-state dissipation current Vref | RegL | | RegI | fo fo DMAX IL ICHG1 ICHG2 VTHL VCH VCL VTHON ISD IqS TYP. 0.6 1.26 0.5 0.1 0.2 85 50 5 -- 4.4 -50 -100 0.75 1.85 0.45 0.2 270 4.0 MAX. 1.2 1.285 -- 1.5 1.5 -- 60 -- -- 5.8 -20 -50 0.95 2.05 0.6 0.3 400 12 Unit V V % % % % kHz % % A A A V V V V A mA s Block Diagram VIN 2 F/F RQ Voltage regulator circuit S Oscillator + - + Amp. COMP. 5 OADJ Vref Error amp. Low voltage Overcurrent malfunction protection prevention circuit circuit Overheat protection circuit ON/OFF circuit Soft start 4 VC 3 COM Fig. 1 Test Circuit L 90H D 1 IO Fig. 2 Power Dissipation vs. Ambient Temperature VO 20 Power dissipation PD (W) ISD IQS VIN A + CIN 2 R2 R1 1k PD1 :No heat sink PD2 :With infinite heat sink Load + 100F 0.047F 4 PQ2CF1 3 1k 3 15 PD2 CO 470F 10 L : HK-12S100-9000 (made by Toho Co.) D : ERC80-004 (made by Fuji electronics Co.) 5 PD1 0 -20 0 20 40 60 80 100 Ambient temperature Ta (C) Note) Oblique line portion : Overheat protection may operate in this area. ;; ;; ;; ;; Chopper Regulators Fig. 3 Overcurrent Protection Characteristics 15 Output voltage Vo (V) PQ2CF1 Fig. 4 Efficiency vs. Input Voltage 100 VIN=5V Vo=12V CIN=100F Co=470F L=90H 90 80 Efficiency (%) 10 70 60 50 40 30 20 VIN=5V Vo=12V 0 100 200 300 400 Output current Io (mA) 500 5 0 0 0.5 1 1.5 2 2.5 3 Output current Io (A) 3.5 10 Fig. 5 Reference Voltage Fluctuation vs. Junction Temperature 1 Fig. 6 Load Regulation vs. Output current 0.5 0.4 Load regulation RegL (%) Reference voltage fluctuation (mV) 0.5 CIN=100F, Co=470F L=90H, VIN=5V Vo=12V, Io=0.2A C=0.47F, R=1k 0.3 0.2 0.1 0 -0.1 -0.2 -0.3 -0.4 -0.5 CIN=100F, Co=470F L=90H, VIN=5V Vo=12V, C=0.47F R=1k 0 -0.5 -1 -25 0 25 50 75 100 Junction temperature Tj (C) 125 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 Output current Io (A) Fig. 7 Line Regulation vs. Input Voltage 1 CIN=100F, Co=470F L=90H, Io=0.2A, C=0.47F, R=1k Fig. 8 Oscillation Frequency Fluctuation vs. Junction Temperature Oscillation frequency fluctuation (%) 10 5 0 -5 Line regulation RegI (%) 0.5 Vo=12V Vo=24V 0 -10 -15 -25 -0.5 0 5 10 15 Input voltage VIN (V) 20 CIN=100F, Co=470F L=90H, VIN=5V Vo=12V, Io=0.2A C=1F, R=1k 0 25 50 75 100 Junction temperature Tj (C) 125 Chopper Regulators Fig. 9 Threshold Voltage vs. Junction Temperature 1 PQ2CF1 Threshold voltage VTH(ON), VTHL (V) 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0 -25 0 25 50 75 100 125 150 Junction temperature Tj (C) VTH(ON) VTHL s Step - Up Type Circuit Diagram (12V Output) L 90H CIN 100F + VIN 5V 4 1k D 1 5 IO VO12V 2 0.47F 3 R1 1k CO 470F ON/OFF control s Flyback Method Circuit Diagram D CIN 100F VIN 0.47F 1k IO VO 4 5 3 R1 1k CO 470F Load + 2 1 R2 + Load R2 8.56k + NOTICE q The circuit application examples in this publication are provided to explain representative applications of SHARP devices and are not intended to guarantee any circuit design or license any intellectual property rights. SHARP takes no responsibility for any problems related to any intellectual property right of a third party resulting from the use of SHARP's devices. Contact SHARP in order to obtain the latest device specification sheets before using any SHARP device. SHARP reserves the right to make changes in the specifications, characteristics, data, materials, structure, and other contents described herein at any time without notice in order to improve design or reliability. Manufacturing locations are also subject to change without notice. Observe the following points when using any devices in this publication. SHARP takes no responsibility for damage caused by improper use of the devices which does not meet the conditions and absolute maximum ratings to be used specified in the relevant specification sheet nor meet the following conditions: (i) The devices in this publication are designed for use in general electronic equipment designs such as: - - - Personal computers - -- Office automation equipment - -- Telecommunication equipment [terminal] - - - Test and measurement equipment - - - Industrial control - -- Audio visual equipment - -- Consumer electronics (ii) Measures such as fail-safe function and redundant design should be taken to ensure reliability and safety when SHARP devices are used for or in connection with equipment that requires higher reliability such as: - -- Transportation control and safety equipment (i.e., aircraft, trains, automobiles, etc.) - - - Traffic signals - - - Gas leakage sensor breakers - - - Alarm equipment - -- Various safety devices, etc. (iii)SHARP devices shall not be used for or in connection with equipment that requires an extremely high level of reliability and safety such as: - - - Space applications - -- Telecommunication equipment [trunk lines] - -- Nuclear power control equipment - -- Medical and other life support equipment (e.g., scuba). q q q Contact a SHARP representative in advance when intending to use SHARP devices for any "specific" applications other than those recommended by SHARP or when it is unclear which category mentioned above controls the intended use. If the SHARP devices listed in this publication fall within the scope of strategic products described in the Foreign Exchange and Foreign Trade Control Law of Japan, it is necessary to obtain approval to export such SHARP devices. This publication is the proprietary product of SHARP and is copyrighted, with all rights reserved. Under the copyright laws, no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, for any purpose, in whole or in part, without the express written permission of SHARP. Express written permission is also required before any use of this publication may be made by a third party. Contact and consult with a SHARP representative if there are any questions about the contents of this publication. q q q |
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