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| Chopper Regulators PQ1CZ38M2Z PQ1CZ38M2Z Chopper Regulator built-in 300kHz oscillation circuit I G Features I Outline Dimensions (Unit : mm) 2.5 Maximum switching current: 0.8A G Built-in ON/OFF control function G Built-in soft start function to suppress overshoot of output voltage in power on sequence or ON/OFF control sequence G Built-in oscillation circuit (Oscillation frequency: TYP. 300kHz) G Built-in overheat, overcurrent protection functions G SC-63 package G 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] ( ) : Typical dimensions 6.6 MAX. 5.2 0.5 3 Epoxy resin 2.3 0.5 (0.5) 5.5 0.5 9.7 MAX. 1CZ38M (1.7) (0 to 0.25) 0.5 +0.2 - 0.1 4(1.27) (0.5) 1 MIN. I G Applications 1 2 3 4 5 Color TV G Digital OA equipment G Facsimiles, printers and other OA equipment G Personal computers and amusement equipment 2 3 4 5 VIN VOUT GND (Common to heat sink) Oadj ON/OFF control I 1 Absolute Maximum Ratings Symbol Parameter VIN Input voltage Vadj Error input voltage VI-O Input-output voltage ISW Switching current VOUT Output-COM voltage VC ON/OFF control voltage PD Power dissipation Tj Junction temperature Topr Operating temperature Tstg Storage temperature Tsol Soldering temperature (Ta=25C) Rating Unit 40 7 41 0.8 -1 -0.3 to 40 8 150 -20 to +80 -40 to +150 260 (10s) V V V A V V W C C C C *Please refer to the chapter " Handling Precautions ". 2 3 4 5 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 In case of with infinite heat sink,please refer fig.2. 5 Overheat protection may operate at Tj=125C to 150C 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/ (0.9) Chopper Regulators PQ1CZ38M2Z (Unless otherwise specified, condition shall be VIN=12V, IO=0.2A, VO=5V, ON-OFF terminals is open, Ta=25C) Symbol VSAT Conditions I Electrical Characteristics Parameter MIN. ISW=0.5A - Vref 1.235 - Vref Tj=0 to 125C - |RegL| IO=0.1 to 0.5A - |RegI| VIN=8 to 35V - IO=0.5A - fO - 270 Tj=0 to 125C - fO Oscillation frequency temperature fluctuation - 0.85 IL Overcurrent detecting level 2 , 4 terminals is open, 5 terminal - ICHG Charge current - VTHL Duty ratio=0%, 4 terminal=0V, 5 terminal Input threshold voltage - VTHH Duty ratio=100%, 4 terminal=1.1V, 5 terminal 4 terminal=0V, 5 terminal 0.7 VTH(ON) ON threshold voltage VIN=40V, 5 terminal=0V ISD - Stand-by current VIN=40V, 4 terminal=0V, 5 terminal=0.9V IQS - Output OFF-state dissipation current Output saturation voltage Reference voltage Reference voltage temperature fluctuation Load regulation Line regulation Efficiency Oscillation frequency TYP. 0.9 1.26 MAX. 1.5 1.285 0.5 0.2 1 80 300 3 1.2 -10 1.3 2.1 0.8 120 5 - 1.5 2.5 - 330 - 1.6 - - - 0.9 400 10 Unit V V % % % % kHz % A A V V V A mA Fig.1 Test Circuit 4 1 ISD IQS PQ1CZ38M2Z 5 + VIN 3 CIN 100F A ICHG D R1 1k CO 470F R2 + Load 2 L 65H IO VO A L : HK-12S120-9000 (made by Toho Co.) D :ERC80-004 (made by Fuji electronics Co.) Fig.2 Power Dissipation vs. Ambient Temperature 10 Power dissipation PD (W) PD PD : With infinite heat sink Fig.3 Overcurrent Protection Characteristics (Typical Value) 6 Tj=25C VIN=12V VO=5V Output voltage VO (V) 5 4 3 2 1 5 0 -20 0 0 20 40 60 80 100 Ambient temperature Ta (C) 0 0.5 1 1.5 Output current IO (A) 2 Note) Oblique line portion:Overheat protection may operate in this area Chopper Regulators Fig.4 Efficiency vs. Input Voltage 100 Tj=25C PQ1CZ38M2Z Fig.5 Output Saturation Voltage vs. Switching Current 1.6 Tj=25C Output saturation voltage VSAT (V) VO=12V,IO=0.5A 90 Efficiency (%) 1.4 1.2 1 0.8 0.6 0.4 0.2 0 0 0.2 0.4 0.6 0.8 Switching current ISW (A) 1 VO=12V,IO=0.1A 80 70 VO=5V,IO=0.5A 60 VO=5V,IO=0.1A 50 0 10 20 30 40 Input voltage VIN (V) 50 Fig.6 Stand-by Current vs. Intput Voltage 250 Tj=25C Stand-by current ISD (A) Fig.7 Reference Voltage Fluctuation vs. Junction Temperature 2 Reference voltage fluctuation (%) 1.5 1 0.5 0 -0.5 -1 -1.5 -2 -25 VIN=12V VO=5V 200 150 100 50 0 0 5 10 15 20 25 30 Intput voltage VIN (V) 35 40 25 50 75 100 0 Junction temperature Tj (C) 125 Fig.8 Load Regulation vs. Output Current 1 Tj=25C VIN=12V VO=5V 0.5 Fig.9 Line Regulation vs. Input Voltage 1.5 Tj=25C VO=5V IO=0.2A Load regulation RegL(%) Line regulation RegI (%) 1 0.5 0 0 -0.5 0 0.1 0.2 0.3 0.4 0.5 Output current IO (A) 0.6 -0.5 0 10 20 30 Input voltage VIN (V) 40 Chopper Regulators Fig.10 Oscillation Frequency Fluctuation vs. Junction Temperature Oscillation frequency fluctuation (%) 10 8 6 4 2 0 -2 -4 -6 -8 -10 -25 VIN=12V VO=5V PQ1CZ38M2Z Fig.11 Overcurrent Detecting Level Fluctuation vs. Junction Temperature Overcurrent detecting level fluctuation (%) 6 4 2 0 -2 -4 -6 -8 -25 0 25 50 75 100 Junction temperature Tj (C) 125 0 25 50 75 100 Junction temperature Tj (C) 125 Threshold voltage VTH (ON) ,VTH (L),VTH (H) (V) Fig.12 Threshold Voltage vs. Junction Temperature 3 VIN=12V 2.5 2 1.5 1 0.5 0 -25 VTH(ON) 0 25 50 75 100 Junction temperature Tj (C) 125 VTH(L) VTH(H) Fig.13 Operating Dissipation Current vs. Input Voltage 12 Operating dissipation current IQ' (mA) 10 8 6 IO=0.1A 4 2 0 0 IO=0.5A Tj=25C VO=5V 10 20 30 Input voltage VIN (V) 40 Fig.14 Block Diagram 1 VIN 2 VOUT Voltage regulator ON/OFF circuit 5 PWM COMP. _ ON/OFF control Overcurrent detection circuit F/F Q R S Oscillator Soft start + _ + ERROR AMP. Vref 4 Oadj Overheat detection circuit 3 COM Chopper Regulators Fig.15 Step Down Type Circuit Diagram PQ1CZ38M2Z 4 1 PQ1CZ38M2 5 + VIN 8 to 35V 3 CIN 100F CS RS D 2 L 65H VO 5V R2 3k + Load CO 470F R1 1k ON/OFF control signal RS50k Fig.16 Polarity Inversion Type Circuit Diagram 4 1 PQ1CZ38M2 5 + VIN 5 to 30V 3 CIN 100F CS RS D 2 L 65H R2 3k + Load CO 2 200F R1 1k VO -5V ON/OFF control signal RS50k NOTICE G 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). G G G If the SHARP devices listed in this publication fall within the scope of strategic products described in the Foreign Exchange and Foreign Trade 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. G G |
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