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| Chopper Regulators PQ1CZ21H2Z PQ1CZ21H2Z Low Dissipation Current at OFF-state Chopper Regulator s q Features s Outline Dimensions (Unit : mm) Maximum switching current: 1.5A q Low dissipation current at OFF-state (Iqs: Max. 1mA) q Built-in oscillation circuit (Oscillation frequency: TYP. 100kHz) q Built-in overheat, overcurrent protection functions q 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] q PQ1CZ21H2ZZ: sleeve-packaged product PQ1CZ21H2ZP: tape-packaged product 6.6MAX. 5.2 0.5 3 2.30.5 (0.5) Epoxy resin 9.7MAX. 5.50.5 1CZ21H (1.7) MIN. (0 to 0.25) Facsimiles Printers q Switching power supplies q q 4-(1.27) (0.5) 1 2 3 4 5 s Absolute Maximum Ratings 1 2 3 4 5 (Ta=25C) Unit V V V V V A W C C C C ( ) : Typical dimensions VIN VOUT GND (Common to heat sink) OADJ ON/OFF control Parameter Symbol Rating 1 Input voltage VIN 40 VADJ 7 Error input voltage VI-O 41 Input-output voltage 2 VOUT -1 Output-COM voltage 3 VC ON/OFF control voltage -0.3 to +40 1.5 ISW Switching current 4 Power dissipation 8 PD 5 Junction temperature Tj 150 Operating temperature Topr -40 to +85 Storage temperature Tstg -40 to +150 Tsol Soldering temperature 260(For 10s) 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 Overheat protection may operate at the condition Tj:125C to 150C *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 device specification sheets before using any SHARP device. Internet Internet address for Electronic Components Group http://sharp-world.com/ecg/ Notice (0.9) s 2.5 Applications 0.5+0.2 -0.1 Chopper Regulators PQ1CZ21H2Z (Unless otherwise specified, condition shall be VIN=12V, IO=0.2A, VO=5V, ON-OFF terminal=2.7V, Ta=25C) MIN. TYP. MAX. Unit Symbol Conditions VSAT s 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 Vref Vref |RegL| |RegI| fO fO IL VTH(ON) IC (ON) IC (OFF) ISD Iqs ISW=1A - Tj=0 to 125C IO=0.2 to 1A VIN=8 to 35V IO=1A - Tj=0 to 125C No L, C, D 4 terminal=0V, 5 terminal 5 terminal=2.7V 5 terminal=0.4V VIN=40V, 5 terminal=0V VIN=40V, 4 terminal=3V L 210H - 1.235 0.9 1.26 1.5 1.285 - - - - 80 - 1.55 0.8 - - - - 0.5 0.1 0.5 82 100 3 2 1.5 - - - 8 - 1.5 2.5 - 120 - 2.6 2 200 2 1 12 V V % % % % kHz % A V A A A mA Fig.1 Test Circuit ISD Iqs IO VO PQ1CZ21H2Z A + R2 + Load D R1 1k CO 470F VIN CIN 100F A IC (ON) IC (OFF) ON/OFF control logic 5 pin Output LOW OFF HIGH ON OPEN OFF L : HK-14D100-2110 (made by Toho Co.) D :ERC80-004 (made by Fuji electronics Co.) Fig.2 Power Dissipation vs. Ambient Temperature 10 8 PD : With infinite heat sink Fig.3 Overcurrent Protection Characteristics (Typical value) 7 6 Ta=25C VIN=12V VO=5V Power dissipation PD (W) Output voltage VO (V) 5 4 3 2 1 0 0 0.5 1 1.5 2 2.5 3 3.5 4 5 0 -40 -20 0 20 40 60 8085 Ambient temperature Ta (C) Note) Oblique line portion:Overheat protection may operate in this area Output current IO (A) Chopper Regulators Fig.4 Efficiency vs. Input Voltage 100 90 Efficiency (%) PQ1CZ21H2Z 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 0.5 1 1.5 2 80 VO=5V, IO=1A 70 VO=5V, IO=0.2A 60 50 0 10 20 30 40 Input voltage VIN (V) Switching current ISW (A) Fig.6 Reference Voltage Fluctuation vs. Junction Temperature 2 Fig.7 Load Regulation vs. Output Current 1 Reference voltage fluctuation (%) VIN=12V VO=5V Load regulation RegL (%) 1 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 2 Oscillation frequency fluctuation (%) 0 -2 -4 -6 -8 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 -10 -50 -25 0 25 50 75 100 125 Input voltage VIN (V) Junction temperature Tj (C) Chopper Regulators Fig.10 Overcurrent Detecting Level Fluctuation vs. Junction Temperature Overcurrent detecting level fluctuation (%) PQ1CZ21H2Z Fig.11 ON Threshold Voltage vs. Junction Temperature 2 6 4 2 0 ON threshold voltage VTH (ON) (V) VIN=12V 1.5 1 -2 -4 -6 -8 -50 -25 0 25 50 75 100 125 0.5 0 -50 -25 0 25 50 75 100 125 150 Junction temperature Tj (C) Junction temperature Tj (C) Fig.12 Operating Dissipation Current vs. Input Voltage 10 9 IO=1A 8 7 No load 6 5 IO=0.2A Operating dissipation current IQ' (mA) Tj=25C VO=5V 0 10 20 30 40 Input voltage VIN (V) Fig.13 Power Dissipation vs. Ambient Temperature (Typical Value) 3 Power dissipation PD (W) Cu area 740mm2 2 Cu area 180mm2 Cu area 100mm2 Cu area 70mm2 Cu area 36mm 2 PWB PWB Cu 1 0 -40 -20 0 20 40 60 8085 Material : Glass-cloth epoxy resin Size : 50x50x1.6mm Cu thickness : 35m Ambient temperature Ta (C) Chopper Regulators Fig.14 Block Diagram PQ1CZ21H2Z 1 2 Voltage regulator _ PWM COMP. + 5 ON/ OFF Overcurrent detection circuit F/F Q R S OSC. 1 2 3 4 5 VIN VOUT GND (Common to heat sink) Oadj ON/OFF control ERROR AMP. _ + Vref 4 Overheat detection circuit 3 Fig.15 Step Down Type Circuit Diagram (5V output) 4 1 PQ1CZ21H2Z 5 + VIN 8 to 35V 3 CIN 100F D 2 L 210H VO 5V R2 3k + Load CO 470F R1 1k ON/OFF control signal Fig.16 Polarity Inversion Type Circuit Diagram (-5V output) 4 1 PQ1CZ21H2Z 5 + VIN 5 to 30V 3 CIN 100F D 2 L 130H R2 3k + Load CO 2200F R1 1k VO -5V ON/OFF control signal 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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