BA9743AFV_11

Technical Note L arge Current External FET Controller T ype Switching Regulators Dual-output Step-up, Negative Voltage, Step-down Switching Regulators (Controller type) BA9743AFV, BA9744FV, BA9741F, BA9741FS No.11028EBT10 www.rohm.com © 2011 ROHM Co., Ltd. All rights reserved. 1/16 2011.04 - Rev. B BA9743AFV, BA9744FV, BA9741F/FS Technical Note www.rohm.com © 2011 ROHM Co., Ltd. All rights reserved. 2/16 2011.04 -Rev. B BA9743AFV, BA9744FV, BA9741F/FS Technical Note www.rohm.com © 2011 ROHM Co., Ltd. All rights reserved. 3/16 2011.04 -Rev. B BA9743AFV, BA9744FV, BA9741F/FS Technical Note www.rohm.com © 2011 ROHM Co., Ltd. All rights reserved. 4/16 2011.04 -Rev. B BA9743AFV, BA9744FV, BA9741F/FS Technical Note www.rohm.com © 2011 ROHM Co., Ltd. All rights reserved. 5/16 2011.04 -Rev. B BA9743AFV, BA9744FV, BA9741F/FS Technical Note www.rohm.com © 2011 ROHM Co., Ltd. All rights reserved. 6/16 2011.04 -Rev. B BA9743AFV, BA9744FV, BA9741F/FS Technical Note www.rohm.com © 2011 ROHM Co., Ltd. All rights reserved. 7/16 2011.04 -Rev. B BA9743AFV, BA9744FV, BA9741F/FS Technical Note Vcc CT RT 9 VREF 16 REFERENCE VOLTAGE 1 TRIANGLE OSCILLATOR 2 NON1 3 INV1 4 FB1 ErrAmp1 SCP COMP PMW COMP1 5 7 OUT1 NON2 14 INV2 13 FB2 12 VREF VCC(BA9744FV) ErrAmp2 VREF(BA9741F/FS, BA9743AFV) 10 OUT2 PMW COMP2 SCP 15 S R TIMER LATCH R UVLO 6 DT1 11 DT2 8 GND www.rohm.com © 2011 ROHM Co., Ltd. All rights reserved. 8/16 2011.04 -Rev. B BA9743AFV, BA9744FV, BA9741F/FS Technical Note www.rohm.com © 2011 ROHM Co., Ltd. All rights reserved. 9/16 2011.04 -Rev. B BA9743AFV, BA9744FV, BA9741F/FS Technical Note www.rohm.com © 2011 ROHM Co., Ltd. All rights reserved. 10/16 2011.04 -Rev. B BA9743AFV, BA9744FV, BA9741F/FS Technical Note www.rohm.com © 2011 ROHM Co., Ltd. All rights reserved. 11/16 2011.04 -Rev. B BA9743AFV, BA9744FV, BA9741F/FS Technical Note www.rohm.com © 2011 ROHM Co., Ltd. All rights reserved. 12/16 2011.04 -Rev. B BA9743AFV, BA9744FV, BA9741F/FS Technical Note www.rohm.com © 2011 ROHM Co., Ltd. All rights reserved. 13/16 2011.04 -Rev. B BA9743AFV, BA9744FV, BA9741F/FS Technical Note www.rohm.com © 2011 ROHM Co., Ltd. All rights reserved. 14/16 2011.04 -Rev. B BA9743AFV, BA9744FV, BA9741F/FS Heat dissipation characteristics Technical Note www.rohm.com © 2011 ROHM Co., Ltd. All rights reserved. 15/16 2011.04 -Rev. B BA9743AFV, BA9744FV, BA9741F/FS ●Ordering part number Technical Note B A 9 Part No. 9743A 9744 9741 7 4 3 A F V - E 2 Part No. Package FV:SSOP-B16 FS:SSOP-A16 F:SOP16 Packaging and forming specification E2: Embossed tape and reel SSOP-B16 5.0±0.2 16 9 Tape Quantity Embossed carrier tape 2500pcs E2 The direction is the 1pin of product is at the upper left when you hold 6.4±0.3 4.4±0.2 0.3Min. Direction of feed ( reel on the left hand and you pull out the tape on the right hand ) 1 8 0.15±0.1 1.15±0.1 0.10 0.1 0.65 0.22±0.1 1pin (Unit : mm) Direction of feed Reel ∗ Order quantity needs to be multiple of the minimum quantity. SSOP-A16 6.6 ± 0.2 (MAX 6.95 include BURR) 16 15 14 13 12 11 10 9 Tape Quantity Embossed carrier tape 2500pcs E2 The direction is the 1pin of product is at the upper left when you hold 4.4 ± 0.2 6.2 ± 0.3 Direction of feed 0.3MIN ( reel on the left hand and you pull out the tape on the right hand ) 1 2 3 4 5 6 7 8 1.5 ± 0.1 0.15 ± 0.1 0.11 0.8 0.1 0.36 ± 0.1 1pin (Unit : mm) Direction of feed Reel ∗ Order quantity needs to be multiple of the minimum quantity. SOP16 10 ± 0.2 (MAX 10.35 include BURR) 16 9 Tape Quantity Direction of feed 0.3MIN Embossed carrier tape 2500pcs E2 The direction is the 1pin of product is at the upper left when you hold 6.2 ± 0.3 4.4 ± 0.2 ( reel on the left hand and you pull out the tape on the right hand ) 1 8 0.15 ± 0.1 1.5 ± 0.1 0.11 1.27 0.4 ± 0.1 0.1 1pin (Unit : mm) Direction of feed Reel ∗ Order quantity needs to be multiple of the minimum quantity. www.rohm.com © 2011 ROHM Co., Ltd. All rights reserved. 16/16 2011.04 - Rev.B Notice Notes No copying or reproduction of this document, in part or in whole, is permitted without the consent of ROHM Co.,Ltd. The content specified herein is subject to change for improvement without notice. The content specified herein is for the purpose of introducing ROHM's products (hereinafter "Products"). If you wish to use any such Product, please be sure to refer to the specifications, which can be obtained from ROHM upon request. Examples of application circuits, circuit constants and any other information contained herein illustrate the standard usage and operations of the Products. The peripheral conditions must be taken into account when designing circuits for mass production. Great care was taken in ensuring the accuracy of the information specified in this document. However, should you incur any damage arising from any inaccuracy or misprint of such information, ROHM shall bear no responsibility for such damage. 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 and other parties. ROHM shall bear no responsibility whatsoever for any dispute arising from the use of such technical information. The Products specified in this document are intended to be used with general-use electronic equipment or devices (such as audio visual equipment, office-automation equipment, communication devices, electronic appliances and amusement devices). The Products specified in this document are not designed to be radiation tolerant. While ROHM always makes efforts to enhance the quality and reliability of its Products, a Product may fail or malfunction for a variety of reasons. Please be sure to implement in your equipment using the Products safety measures to guard against the possibility of physical injury, fire or any other damage caused in the event of the failure of any Product, such as derating, redundancy, fire control and fail-safe designs. ROHM shall bear no responsibility whatsoever for your use of any Product outside of the prescribed scope or not in accordance with the instruction manual. The Products are not designed or manufactured to be used with any equipment, device or system which requires an extremely high level of reliability the failure or malfunction of which may result in a direct threat to human life or create a risk of human injury (such as a medical instrument, transportation equipment, aerospace machinery, nuclear-reactor controller, fuelcontroller or other safety device). ROHM shall bear no responsibility in any way for use of any of the Products for the above special purposes. If a Product is intended to be used for any such special purpose, please contact a ROHM sales representative before purchasing. If you intend to export or ship overseas any Product or technology specified herein that may be controlled under the Foreign Exchange and the Foreign Trade Law, you will be required to obtain a license or permit under the Law. Thank you for your accessing to ROHM product informations. More detail product informations and catalogs are available, please contact us. ROHM Customer Support System http://www.rohm.com/contact/ www.rohm.com © 2011 ROHM Co., Ltd. All rights reserved. R1120A