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Under development New product
PQ1CG21H2FZ PQ1CG21H2RZ
TO-220 Type Chopper Regulator
General Description Sharp's chopper regulator PQ1CG21H2FZ/PQ1CG21H2RZ of TO-220 package uses PWM method. It is suitable for the applications of large voltage difference between input and output and applications of negative power supply thank to its low heat loss.
Chopper Regulator
Outline Dimensions PQ1CG21H2FZ
10.2 MAX 3.20.1 4.50.2
(Unit: mm)
2.80.2
7.40.2
PQ1CG21H
(0.5) (2.0) (1.5)
5-0.80.1
(1) Maximum switching current: 1.5 A (2) Built-in ON/OFF control function (3) Built-in soft start function to suppress overshoot of output voltage in power on sequence or ON/OFF controll sequence. (4) Built-in oscillation circuit (Oscillation frequency : TYP. 100 kHz) (5) Built-in overheat/overcurrent protection function (6) TO-220 package (7) Variable output voltage (Output variable range : 1.26 to 35 V/-1.26 to -30 V) [Possible to choose step-down output/inversing output according to external connection circuit] (8) PQ1CG21H2FZ : Zigzag forming PQ1CG21H2RZ : Self-stand forming
4-(1.7)
(5.0) 8.20.7
3.20.5
The dimension in ( ) indicates the reference dimensions.
Terminal No.
1 2 3 4 5
VIN VOUT COM Oadj ON/OFF 4.50.2 2.80.2
12345
PQ1CG21H2RZ
10.2 MAX
3.20.1
7,40.2
(24.6)
PQ1CG21H
(2.2)
(11.4)
(1.5)
4.4 MIN
Features
5.00.5 (3.6) 6.00.5
Applications (1) Switching power supplies (2) Facsimiles, printers and other OA equipment (3) Color TVs and video CDs (4) Personal computers and amusement equipment
5-0.80.1
4-(1.7)
4.70.6
4.70.6 2.60.5
The dimension in ( ) indicates the reference dimensions.
Terminal No.
1 2 3 4 5
VIN VOUT COM Oadj ON/OFF
12345
(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. * Specifications are subject to change without notice for improvement. * Data for Sharp's optoelectronic/power devices is provided on internet. ( Address http://www.sharp.co.jp/ecg/)
(Internet)
Tec. PW990302-A
76
16.40.7
(24.6)
PQ1CG21H2FZ PQ1CG21H2RZ
Absolute Maximum Ratings
Parameter *1 Input voltage Output adjustment terminal voltage Dropout voltage *2 Output-COM voltage *3 ON/OFF control voltage Switching current *4 Power disspation Symbol VIN Vadj VI-O Vout Vc Isw Pd1 Pd2 Tj Topr Tstg Tsol Rating 40 7 41 -1 -0.3 to 40 1.5 1.4 14 150 -20 to +80 -40 to +150 260(For 10s)
Chopper Regulator
(Ta=25C) Unit V V V V V A W W C C C C
*5 Junction temperature Operating temperature Storage temperature Soldering temperature *1 Voltage between V and COM *2 Voltage between Vout and COM *3 Voltage between ON/OFF and COM *4 P: No heat sink P: With infinite heat sink. *5 Overheat protector may operate for Tj=125 to 150C.
Electrical Characteristics (Vin=12 V, Io=0.5 A, Terminal No. 5 open and Ta=25C unless otherwise specified)
Parameter Output saturation voltage Reference voltage Reference voltage temperature fluctuation Load requlation Line requlation Efficiency Oscillation frequency Oscillation frequency temperature fluctuation Overcurrent detection level Charge current Input threshold voltage ON threshold voltage Standby current Output OFF-state consumption current Symbol Vsat Vref Vref RegL RegI fo fo IL ICHG VTHL VTHH VTHON ISD IQS Conditions Isw=1A - Tj=0 to 125C Io=0.2 to 1A Vin=8 to 35V Io=1A - Tj=0 to 125C - Terminals 2/4 are open, Terminal 5 Duty=0% Terminal 4 = 0 V, Terminal 5 Duty=100%, Terminal 4 is open, Terminal 5 Terminal 4 = 0 V, Terminal 5 Vin=40V,Terminal 5 = 0 V=0V Vin=40V,Terminal 5 = 0 V=0.9V MIN. - 1.235 - - - - 80 - 1.55 - - - 0.7 - - TYP. 1.0 1.26 0.5 0.2 0.5 84 100 2 2.0 -10 1.3 2.3 0.8 140 8 MAX. 1.5 1.285 - 1.5 2.5 - 120 - 2.6 - - - 0.9 400 12 Unit V V % % % % kHz % A A V V V A mA
Step-down output circuit diagram
PQ1CG21H2FZ/PQ1CG21H2RZ
VIN
1 2
Inversing output circuit diagram
PQ1CG21H2FZ/PQ1CG21H2RZ
Vo VIN
1 2
Vo R1
R2
ON/OFF control circuit
5
5
Overcurrent protective circuit
Oscillation circuit
ON/OFF control
4
Overheat protective circuit
ON/OFF control circuit
ON/OFF control R1 GND GND
Overcurrent protective circuit
Oscillation circuit
4
Overheat protective circuit
Control circuit
Control circuit
R2
GND
3
3
GND
Vo=Vref!(1+R2/R1) (Vref=1.26V) Vo=1.26V~ 35V Here, the upper limit is restricted by Vin-Vsat value. Vo= -Vref!(1+R2/R1) (Vref=1.26V) Vo= -1.26V ~ -30V Here, the upper limit of the absolute value is restricted by 40V-Vi.
As of March 1999
Tec. PW990302-A
77
Application Circuits
NOTICE
qThe 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. qContact 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. qObserve 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). qContact 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. qIf 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. qThis 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. qContact and consult with a SHARP representative if there are any questions about the contents of this publication.
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