PQ1CG3032FZ 7.4 ±0.2 (1.5) (24.6) PQ1CG3032RZ V V V (24.6)

Transcription

1 FZ/ RZ Features. Maximum switching current:.a. Built-in ON/OFF control function. Built-in soft start function to suppress overshoot of output voltage in power on sequence or ON/OFF control sequence. Built-in oscillation circuit (Oscillation frequency:typ. khz). Built-in overheat/overcurrent protection function 6. TO- package 7. ariable output voltage (Output variable range: ref to / ref to ) [Possible to select step-down output/inversing output according to external connection circuit] 8. FZ:Zigzag forming RZ:Self-stand forming Applications. CT. igital OA equipment. Facsimiles, printers and other OA equipment. Personal computers and amusement equipment Absolute Maximum Ratings (Ta= C) Parameter Symbol Rating Unit Input voltage IN Output adjustment terminal voltage ropout voltage Output-COM voltage AJ I-O OUT 7 ON/OFF control voltage C. to Switching current ISW. A Power dissipation P. W P W Junction temperature Tj C Operating temperature Topr to 8 C Storage temperature Tstg to C Soldering temperature Tsol 6 C * * * * * *6 * oltage between IN terminal and COM terminal * oltage between OUT terminal and COM terminal * oltage between ON/OFF control and COM terminal * P :With infinite heat sink * Over heat protection may operate at the condition T j = C to C *6 For s TO- Type Chopper Regulator Outline imensions FZ (.6) (.6) 7. ±. (.) 7. ±. (.). MAX. (6.8) ( ) : Typical dimensions RZ. MAX. (6.8) ( ) : Typical dimensions.6 ±. φ. ±..8 ±. (.) (.7) (.).6 ±. φ. ±..8 ±. (.7) Epoxy resin Epoxy resin. ±..8 ±. 8. ±.7 (.) (.) (Unit : mm). ±. (.). MIN.. ±. IN OUT COM O AJ ON/OFF. ±..8 ±. (.) (.7).7 ±.6.7 ±.6.6 ±. IN OUT COM O AJ ON/OFF 6. ±.7 (.) 6. ±. (.6) Notice Internet 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 address for Electronic Components Group

2 A Electrical Characteristics (Unless otherwise specified, condition shall be IN=, IO=.A, O=, ON-OFF terminals is open, Ta= C) Parameter Symbol Conditions MIN. TYP. MAX. Unit SAT ref ref Reg RegI η fo ISW=A Tj= to C IO=. to A IN=8 to IO=A % % % % khz Output saturation voltage Reference voltage Reference voltage temperature fluctuation oad regulation ine regulation Efficiency Oscillation frequency Oscillation frequency temperature fluctuation Overcurrent detecting level Charge current Threshold input voltage ON threshold voltage Stand-by current Output OFF-state consumption current fo Tj= to C I ICHG, terminals is open, terminal TH uty ratio=%, terminal=, terminal THH uty ratio=%, terminals is open, terminal terminal=, terminal IS IN=, terminal= IQS IN=, terminal=.9 TH(ON) ±.. 8 ± % A µa µa 8 6 ma Fig. Standard Test Circuit 9µH I O O I S A I QS IN µf FZ I CHG R kω µf oad : HK-S-9R (made by Toho Co.) : ERC8- (made by Fuji electronics Co.) Fig. Power issipation vs. Ambient Temperature Fig. Overcurrent Protection Characteristics (Typical alue) 6 Power dissipation P (W) P : With infinite heat sink P : No heat sink 7 8 Ambient temperature T a ( C) Note) Oblique line prtion:overheat protection may operate in this area Output voltage O () T a = C IN = O = oad current I O (A)

3 Fig. Efficiency vs. Input oltage Efficiency (%) O =, I O =A O =, I O =A O =, I O =A Input voltage IN () T j = C O =, I O =A Fig.6 Stand by Current vs. Intput oltage Stand by current IS (µa) Intput voltage IN () Fig.8 oad Regulation vs. Output Current Fig. Output Saturation oltage vs. Switching Current Output saturation voltage SAT () T j = C Switching current I SW (A) Fig.7 Reference oltage Fluctuation vs. Junction Temperature Reference voltage fluctuation ref (%) IN = O = 7 Junction temperature T j ( C) Fig.9 ine Regulation vs. Input oltage. T j = C IN = O =. oad regulation Reg (%)..... ine regulation RegI (%).. T j = C O = I O =.A Output current I O (A) Input voltage IN ()

4 Fig. Oscillation Frequency Fluctuation vs. Junction Temperature Oscillation frequency fluctuation fo (%) Fig. Threshold oltage vs. Junction Temperature Threshold voltage TH(ON), TH(), TH(H) ()... 7 Junction temperature T j ( C) Fig. Block iagram TH(H) TH() TH(ON) IN = O = 7 Junction temperature T j ( C) IN = Fig. Overcurrent etection evel Fluctuation vs. Junction Temperature Overcurrent detecting level Fluctuation I (%) Fig. Operating Consumption Current vs. Input oltage Operating consumptioon current IQ' (ma) Junction temperature T j ( C) I O =A I O =A No load Input voltage IN () Tj= C O = IN OUT Overcurrent detection circuit oltage regulator PWM COMP. Q F/F R S ON/OFF circuit Oscillator Soft start ERROR AMP. ON/OFF O AJ Overheat detection circuit ref COM

5 Fig. Step own Type Circuit iagram µh O IN 8 to µf C S R S kω R kω µf oad ON/OFF control signal R S kω Fig.6 Polarity Inversion Type Circuit iagram 6µH IN to µf CS R S kω R kω µf oad O ON/OFF control signal R S kω

6 Precautions for Use O IN C S oad R. External connection () Wiring condition is very important. Noise associated with wiring inductance may cause problems. For minimizing inductance, it is recommended to design the thick and short pattern (between large current diodos, input/output capacitors, and terminal,.) Single-point grounding (as indicated) should be used for best results. () High switching speed and low forward voltage type schottky barrier diode should be recommended for the catch-diode because it affects the efficiency. Please select the diode which the current rating is at least. times greater than maximum swiching current. () The output ripple voltage is highly influenced by ESR (Equivalent Series Resistor) of output capacitor, and can be minimized by selecting ow ESR capacitor. () An inductor should not be operated beyond its maximum rated current so that it may not saturate. () When voltage that is higher than IN, is applied to OUT, there is the case that the device is broken. Especially, in case IN is shorted to GN in normal condition, there is the case that the device is broken since the charged electric charge in output capacitor ( ) flows into input side. In such case a schottly barrier diode or a silicon diode shall be recommended to connect as the following circuit. Protection diode IN OUT

7 ON/OFF Control Terminal. In the following circuit,when ON/OFF control terminal becomes low by switching transistor Tr on, output voltage may be turned OFF and the device becomes stand-by mode. issipation current at stand-by mode becomes Max.µA.. Soft start When capacitor Cs is attached, output pulse gradually expanded and output voltage will start softly.. ON/OFF control with soft startup For ON/OFF control with capacitor C S, be careful not to destroy a transistor Tr by discharge current from C S, adding a resistor restricting discharge current of C S. I O O IN C S R S oad T r R ON/OFF control signal ON-OFF Terminal oltage vs. Time (). ( THH ) uty ratio=% ON/OFF terminal voltage. ( TH ).8 ( THON ) uty ratio=% Stand-by mode OFF-state Soft start Time

8 Application Circuits NOTICE 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 --- arious 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). 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 aw 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.