Technical Note Large Current External FET Controller T ype Switching Regulators Dual-output Step-up, Negative Voltage, Step-down Switching Regulators (Controller type) BA9743AFV, BA9744FV, BA9741F, BA9741FS www.rohm.com 2011 ROHM ROHM Co., Co., Ltd. Ltd. All All rights rights reserved. reserved. © 2013 1/16 No.13028ECT10 No.11028EBT10 2013.03 -- Rev. Rev. B C 2011.04 BA9743AFV, BA9744FV, BA9741F/FS Technical Note www.rohm.com www.rohm.com © ROHM Co., Co., Ltd. Ltd. All All rights rights reserved. reserved. © 2011 2013 ROHM 2/16 2013.03 Rev.CB 2011.04- -Rev. BA9743AFV, BA9744FV, BA9741F/FS www.rohm.com © 2013 2011 ROHM ROHMCo., Co.,Ltd. Ltd.All Allrights rightsreserved. reserved. Technical Note 3/16 2013.03 -Rev. Rev.BC 2011.04 BA9743AFV, BA9744FV, BA9741F/FS www.rohm.com © 2013 2011 ROHM ROHMCo., Co.,Ltd. Ltd.All Allrights rightsreserved. reserved. Technical Note 4/16 2013.03 Rev. B C 2011.04 -Rev. BA9743AFV, BA9744FV, BA9741F/FS Technical Note www.rohm.com www.rohm.com © 2013 2011 ROHM ROHMCo., Co.,Ltd. Ltd.All Allrights rightsreserved. reserved. © 5/16 2011.04 --Rev. B 2013.03 C BA9743AFV, BA9744FV, BA9741F/FS www.rohm.com www.rohm.com © © 2013 2011 ROHM ROHMCo., Co.,Ltd. Ltd.All Allrights rightsreserved. reserved. Technical Note 6/16 Rev. C B 2011.04- -Rev. 2013.03 BA9743AFV, BA9744FV, BA9741F/FS Technical Note www.rohm.com www.rohm.com 2011 ROHM ROHMCo., Co.,Ltd. Ltd.All Allrights rightsreserved. reserved. ©©2013 7/16 2013.03 C 2011.04 --Rev. B BA9743AFV, BA9744FV, BA9741F/FS Technical Note VREF 16 Vcc CT RT 9 1 2 REFERENCE TRIANGLE VOLTAGE OSCILLATOR NON1 3 INV1 4 FB1 ErrAmp1 PMW COMP1 SCP COMP 5 7 OUT1 NON2 14 INV2 13 ErrAmp2 10 OUT2 VREF(BA9741F/FS, BA9743AFV) FB2 12 PMW COMP2 VREF VCC(BA9744FV) SCP 15 S R TIMER LATCH www.rohm.com www.rohm.com © 2013 2011 ROHM ROHMCo., Co.,Ltd. Ltd.All Allrights rightsreserved. reserved. © R UVLO 6 11 8 DT1 DT2 GND 8/16 2013.03 Rev. C B 2011.04--Rev. BA9743AFV, BA9744FV, BA9741F/FS www.rohm.com © 2013 2011 ROHM ROHMCo., Co.,Ltd. Ltd.All Allrights rightsreserved. reserved. Technical Note 9/16 2013.03 -Rev. Rev.BC 2011.04 BA9743AFV, BA9744FV, BA9741F/FS www.rohm.com © 2013 2011 ROHM ROHMCo., Co.,Ltd. Ltd.All Allrights rightsreserved. reserved. Technical Note 10/16 2013.03 Rev. BC 2011.04 --Rev. BA9743AFV, BA9744FV, BA9741F/FS www.rohm.com © 2013 2011 ROHM ROHMCo., Co.,Ltd. Ltd.All Allrights rightsreserved. reserved. Technical Note 11/16 2011.04 --Rev. 2013.03 Rev. B C BA9743AFV, BA9744FV, BA9741F/FS www.rohm.com www.rohm.com © © 2013 2011 ROHM ROHMCo., Co.,Ltd. Ltd.All Allrights rightsreserved. reserved. Technical Note 12/16 2013.03 C 2011.04 --Rev. B BA9743AFV, BA9744FV, BA9741F/FS www.rohm.com www.rohm.com 2013 ROHM © 2011 ROHM Co., Co., Ltd. Ltd. All All rights rights reserved. reserved. Technical Note 13/16 2013.03 Rev. B C 2011.04 --Rev. BA9743AFV, BA9744FV, BA9741F/FS www.rohm.com www.rohm.com © © 2011 2013 ROHM Co., Ltd. All rights reserved. Technical Note 14/16 2013.03 C 2011.04 --Rev. B BA9743AFV, BA9744FV, BA9741F/FS Technical Note ēHeat dissipation characteristics www.rohm.com www.rohm.com © 2011 2013 ROHM Co., Ltd. All rights reserved. © 15/16 2013.03 Rev. C B 2011.04- -Rev. BA9743AFV, BA9744FV, BA9741F/FS Technical Note ●Ordering part number B A 9 Part No. 7 4 3 A F Part No. 9743A 9744 9741 V Package FV:SSOP-B16 FS:SSOP-A16 F:SOP16 - E 2 Packaging and forming specification E2: Embossed tape and reel SSOP-B16 <Tape and Reel information> 5.0±0.2 9 1 Tape Embossed carrier tape Quantity 2500pcs Direction of feed 0.3Min. 4.4±0.2 6.4±0.3 16 E2 The direction is the 1pin of product is at the upper left when you hold ( reel on the left hand and you pull out the tape on the right hand ) 8 1.15±0.1 0.15±0.1 0.10 0.1 0.65 1pin 0.22±0.1 Reel (Unit : mm) Direction of feed ∗ Order quantity needs to be multiple of the minimum quantity. SSOP-A16 <Tape and Reel information> 6.6 ± 0.2 (MAX 6.95 include BURR) Tape Embossed carrier tape Quantity 2500pcs 9 Direction of feed 0.3MIN 4.4±0.2 6.2±0.3 16 15 14 13 12 11 10 1 2 3 4 5 6 7 E2 The direction is the 1pin of product is at the upper left when you hold ( reel on the left hand and you pull out the tape on the right hand ) 8 0.11 1.5±0.1 0.15 ± 0.1 0.1 0.8 0.36 ± 0.1 1pin Reel (Unit : mm) Direction of feed ∗ Order quantity needs to be multiple of the minimum quantity. SOP16 <Tape and Reel information> 10 ± 0.2 (MAX 10.35 include BURR) 9 Tape Embossed carrier tape Quantity 2500pcs Direction of feed E2 The direction is the 1pin of product is at the upper left when you hold ( reel on the left hand and you pull out the tape on the right hand ) 0.3MIN 4.4±0.2 6.2±0.3 16 1 8 0.11 1.5±0.1 0.15 ± 0.1 1.27 0.4 ± 0.1 0.1 1pin Reel (Unit : mm) www.rohm.com www.rohm.com © 2011 2013 ROHM ROHM Co., Co., Ltd. Ltd.All Allrights rightsreserved. reserved. © 16/16 Direction of feed ∗ Order quantity needs to be multiple of the minimum quantity. 2013.03 C 2011.04 --Rev. Rev.B Notice Notes 1) The information contained herein is subject to change without notice. 2) Before you use our Products, please contact our sales representative and verify the latest specifications : 3) Although ROHM is continuously working to improve product reliability and quality, semiconductors can break down and malfunction due to various factors. Therefore, in order to prevent personal injury or fire arising from failure, please take safety measures such as complying with the derating characteristics, implementing redundant and fire prevention designs, and utilizing backups and fail-safe procedures. ROHM shall have no responsibility for any damages arising out of the use of our Poducts beyond the rating specified by ROHM. 4) Examples of application circuits, circuit constants and any other information contained herein are provided only to illustrate the standard usage and operations of the Products. The peripheral conditions must be taken into account when designing circuits for mass production. 5) The technical information specified herein is intended only to show the typical functions of and examples of application circuits for the Products. ROHM does not grant you, explicitly or implicitly, any license to use or exercise intellectual property or other rights held by ROHM or any other parties. ROHM shall have no responsibility whatsoever for any dispute arising out of the use of such technical information. 6) The Products are intended for use in general electronic equipment (i.e. AV/OA devices, communication, consumer systems, gaming/entertainment sets) as well as the applications indicated in this document. 7) The Products specified in this document are not designed to be radiation tolerant. 8) For use of our Products in applications requiring a high degree of reliability (as exemplified below), please contact and consult with a ROHM representative : transportation equipment (i.e. cars, ships, trains), primary communication equipment, traffic lights, fire/crime prevention, safety equipment, medical systems, servers, solar cells, and power transmission systems. 9) Do not use our Products in applications requiring extremely high reliability, such as aerospace equipment, nuclear power control systems, and submarine repeaters. 10) ROHM shall have no responsibility for any damages or injury arising from non-compliance with the recommended usage conditions and specifications contained herein. 11) ROHM has used reasonable care to ensur the accuracy of the information contained in this document. However, ROHM does not warrants that such information is error-free, and ROHM shall have no responsibility for any damages arising from any inaccuracy or misprint of such information. 12) Please use the Products in accordance with any applicable environmental laws and regulations, such as the RoHS Directive. For more details, including RoHS compatibility, please contact a ROHM sales office. ROHM shall have no responsibility for any damages or losses resulting non-compliance with any applicable laws or regulations. 13) When providing our Products and technologies contained in this document to other countries, you must abide by the procedures and provisions stipulated in all applicable export laws and regulations, including without limitation the US Export Administration Regulations and the Foreign Exchange and Foreign Trade Act. 14) This document, in part or in whole, may not be reprinted or reproduced without prior consent of ROHM. 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