PQ1CZ1T

PQ1CZ1T SHARP | Alldatasheet

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Surface Mount Type Chopper Regulator I Features G Surface mount type package (equivalent to SC-63, 5-terminal type) G Variable output voltage (Vref to 35V/–Vref to –30V) G Built-in ON/OFF control function G Built-in overheat protection function and overcurrent protection function G Built-in soft start function I Applications G Personal computers G Word processors G Printers G Car audio equipment Parameter Symbol Rating Unit VIN VADJ Vi-O ISW VOUT VC PD Tj Topr Tstg Tsol 1.5 –0.3 to 40 150 –20 to +80 –40 to +150 260(For 10s) V V V A V V W Input voltage Error input voltage Input-output voltage Switching current Voltage between output and COM ON/OFF control voltage Power dissipation Junction temperature Operating temperature Storage temperature Soldering temperature ❇ 1 ❇ 2 ❇ 3 ❇ 4 ❇ 1 Voltage between VIN terminal and COM terminal. ❇ 2 Voltage between VOUT terminal and COM terminal. ❇ 3 Voltage between Vc terminal and COM terminal. ❇ 4 With infinite heat sink, Refer to Fig.1 I Absolute Maximum Ratings (Ta=25˚C) I Outline Dimensions (Unit : mm)

• Please refer to the chapter " Handling Precautions ". 1CZ1 6.6MAX 9.7MAX 2.5MIN 5.2±0.5 2.3±0.5 0.5 +0.2 –0.1 5.5±0.5 4–(1.27) (0.5) (0.5) (0.9) (1.7) V IN V OUT COM(equivalent to heat sink) O ADJ V C ( ):Typical values 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/

Parameter Symbol Conditions VSAT Vref ∆Vref |RegL| |RegI| η fo ∆fo DMAX IL ICHG VTHL VTHH VTH(ON) ISD Iqs Unit MAX. TYP. MIN. 1.235 1.55 –15 1.95 3.25 1.05 Io=1A, no L,D,C O Tj=0 to 125˚C IO=0.2 to 1A VIN=8 to 35V IO=1A Tj=0 to 125˚C terminal = open No L,D,C O , terminals are open Duty=0%, terminal =OV, terminal Duty=DMAX, terminal is open., terminal terminal=0V, terminal VIN=40V, terminal =0V VIN=40V, terminal =3V 0.9 1.26 ±0.5 0.1 0.5 100 –10 2.25 3.55 1.4 150 1.5 1.285 1.5 2.5 120 2.6 2.55 3.85 1.75 400 I Electrical Characteristics(Unless otherwise specified, condition shall be VIN=12V, Io=0.2A, Vo=5V, terminal is open, Ta=25˚C) V V kHz A µA V V µA mA Output saturation voltage Reference voltage Reference voltage temperature fluctuation Load regulation Line regulation Efficiency Oscillation frequency Oscillation frequency temperature fluctuation Maximum duty Overcurrent detecting level Charge current Input threshold voltage ON threshold voltage Stand-by current Output OFF-state dissipation current Fig. 1 Test Circuit VIN ISD Iqs ICHGCIN 100µF CO 470µF D 1kΩ IO VO + + A A L 210µH 2.2 nF Road L : HK-HK-14D100-2110(made by Toho Co.) D : ERC80-004(made by Fuji electronics Co.) O]=Vref × 1+ –– VR2 Output voltage 1 2 Fig. 2 Power Dissipation vs. Ambient Temperature Note) Oblique line portion : Overheat protection may operate in this area. Fig. 3 Overcurrent Protection Characteristics (Typical Value) 0 0.5 1.5 1 3.5 2.5 3 24 Output voltage Vo (V) Output current Io (A) Tj=25˚C VIN=12V Vo=5V C IN=100µF Co=470µF L=210µH Ambient temperature Ta (˚C) Power dissipation PD (W) PD : With infinite heat sink –20 0 20 40 60 80 100 P D

Fig. 4 Efficiency vs. Input Voltage Input voltage VIN (V) Efficiency η (%) 100 20 10 30 40 T j=25˚C VO=12V, IO=1.0A VO=12V, IO=0.2A VO=5V, IO=0.2A VO=5V, IO=1.0A Fig. 5 Switching Current vs. Output Saturation Voltage Tj=25˚C Output saturation voltage VSAT (V) Switching current ISW (A) 0 0.5 1.0 1.5 0.5 1.0 1.5 2.0 Fig. 6 Stand-by Current vs. Input Voltage Tj=25˚C Input voltage VIN (V) Stand-by current ISD (µA) 100 150 200 105 1 52 53 5 20 30 40 Fig. 7 Reference Voltage Fluctuation vs. Junction Temperature –25 0 25 50 75 100 125 Junction temperature T j (˚C) VIN=12V Vo=5V Reference voltage fluctuation ∆VREF (%) Fig. 8 Load Regulation vs. Output Current 0 0.2 0.4 0.6 0.8 1 –0.5 0.5 Tj=25˚C VIN=12V Vo=5V C IN=100µF CO=470µF L=210µH Load regulation RegL (%) Output current IO (A) Fig. 9 Line Regulation vs. Input Voltage 01 0 2 0 3 05 1 52 53 5 4 0 –0.5 0.5 Tj=25˚C, Io=0.2A Vo=5V, CIN=100µF CO=470µF, L=210µH Line regulation RegI (%) Input voltage VIN (V)

Fig.10 Oscillation Frequency Fluctuation vs. Junction Temperature –25 0 25 50 75 100 125 VIN=12V Vo=5V Junction temperature Tj (˚C) Oscillation frequency fluctuation (%) Fig.11 Overcurrent Detecting Level Fluctuation vs. Junction Temperature –25 0 25 50 75 100 125 –15 –10 Junction temperature Tj (˚C) Overcurrent detecting level fluctation (%) Fig.12 Threshold Voltage vs. Junction Temperature –50 0.5 3.5 2.5 1.5 4.5 VTHH VTHL VIN=12V VTH(ON) –25 0 50 25 100 75 125 Junction temperature Tj (˚C) Threshold voltage VTH(ON), VTHL, VTHH (V) Fig.13 Operating Dissipation Current vs. Input Voltage 10 20 30 40 Io=0.2A Io=1A No load Tj=25˚C Vo=5V Input voltage VIN (V) Operating dissipation current IQ' (mA) Fig.14 Power Dissipation vs. Ambient Temperature (Typical Value) PWB Material : Glass-cloth epoxy resin Size : 50 X 50 X 1.6mm Cu thickness : 35 µm PWB Cu Cu area 740mm2 Cu area 180mm2 Cu area 100mm2 Cu area 70mm2 Cu area 36mm2 Ambient temperature Ta (˚C) Power dissipation PD (W) –20 0 20 40 60 80 100

I Step Down Type Circuit Diagram (5V output) I Polarity Inversion Type Circuit Diagram (–5V output) VIN 8~35V CIN 100µF Load CS RS CO 470µF VO=5V RS<=50kΩ ON/OFF control signal D 1kΩ 3kΩ L 210 µH PQ1CZ1 1 2 VIN 5 to 30V CIN 100µF Load CS RS CO 2200µF VO=–5V RS<=50kΩ ON/OFF control signal D 1kΩ 3kΩ L 130µH PQ1CZ1 1 2 Voltage regulator ON/OFF circuit VIN VOUT ON/OFF O ADJ COM Over current detecting circuit Over current detecting circuit F/F PWM COMP ERROR AMP. Vref Q R S Soft start Oscillation – 1 2

I Thermal Protection Design I External Connection VIN CIN CS CO VO Load D L q 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 1,2.)Single-point grounding(as indicated)should be used for best results. w When output voltage is not stable, it can be improved by attaching capacitor(from several nF to several dozens nF)to external resistor R e High switching speed and low forward voltage type schottky barrier diode should be recommended for the catch-diode D because it affects the efficiency. Please select the diode which the current rating is at least 1.2 times greater than maximum swiching current. r The output ripple voltage is highly influenced by ESR(Equivalent Series Resistor)of output capacitor, and can be minimized by selecting Low ESR capacitor. t An inductor should not be operated beyond its maximum rated current so that it may not saturate. Internal power dissipation(P)of device is generally obtained by the following equation. When ambient temperature Ta and power dissipation P D(MAX)during operation are determined, use Cu plate which allows the element to operate within the safety operation area specified by the derating curve. Insufficient radiation gives an unfavorable influence to the normal operation and reliability of the device. P=ISW(Average.) x VSATxD' + VIN(voltage between VIN to COM terminal) x Iq'(consumption current) Step down type I SW(Average)= IO(Output current.) Ton T(period) VO+VF VIN–VSAT+VF Polarity inversion type I SW(Average)= –––––––– x IO(Output current.) Ton T(period) 1–D' |VO|+VF VIN+|VO|–VSAT+VF VF : Forward voltage of the diode

(V) 3.55 (VTHH) 2.25 (VTHL) 1.4 (VTHON) Stand-by mode OFF-state Soft start time Duty 0% Duty D MAX Step Down Voltage Circuit ON/OFF terminal voltage 1 2 3 In the following circuit,when ON/OFF control terminal t becomes low by switching transistor Tr on, output voltage may be turned OFF and the device becomes stand-by mode. Dissipation current at stand-by mode becomes Max.400µA. <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 CS. VIN CIN CS CO VO Load D LI O Tr ON/OFF control signal In the external area of the safety operation area shown by the derating curve, the overheat protection circuit may operate to shut-down output. However, please avoid keeping such condition for a long time.

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. G 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. G 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 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. G 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. G 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. G Contact and consult with a SHARP representative if there are any questions about the contents of this publication.