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| 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 technical note 1/16 2011.04 - rev. b www.rohm.com ? 2011 rohm co., ltd. all rights reserved. no.11028ebt10
2/16 2011.04 - rev. b www.rohm.com ? 2011 rohm co., ltd. all rights reserved. technical note ba9743afv, ba9744fv, ba9741f/fs 3/16 2011.04 - rev. b www.rohm.com ? 2011 rohm co., ltd. all rights reserved. technical note ba9743afv, ba9744fv, ba9741f/fs 4/16 2011.04 - rev. b www.rohm.com ? 2011 rohm co., ltd. all rights reserved. technical note ba9743afv, ba9744fv, ba9741f/fs 5/16 2011.04 - rev. b www.rohm.com ? 2011 rohm co., ltd. all rights reserved. technical note ba9743afv, ba9744fv, ba9741f/fs 6/16 2011.04 - rev. b www.rohm.com ? 2011 rohm co., ltd. all rights reserved. technical note ba9743afv, ba9744fv, ba9741f/fs 7/16 2011.04 - rev. b www.rohm.com ? 2011 rohm co., ltd. all rights reserved. technical note ba9743afv, ba9744fv, ba9741f/fs 8/16 2011.04 - rev. b www.rohm.com ? 2011 rohm co., ltd. all rights reserved. technical note ba9743afv, ba9744fv, ba9741f/fs 16 9 3 4 5 12 13 14 15 611 8 10 7 12 vref non1 inv1 fb1 non2 inv2 fb2 scp dt1 dt2 gnd out2 out1 rt ct vcc reference voltage triangle oscillator erramp1 erramp2 scp comp pmw comp1 pmw comp2 vref timer latch r uvlo vcc(ba9744fv) vref(ba9741f/fs, ba9743afv) sr 9/16 2011.04 - rev. b www.rohm.com ? 2011 rohm co., ltd. all rights reserved. technical note ba9743afv, ba9744fv, ba9741f/fs 10/16 2011.04 - rev. b www.rohm.com ? 2011 rohm co., ltd. all rights reserved. technical note ba9743afv, ba9744fv, ba9741f/fs 11/16 2011.04 - rev. b www.rohm.com ? 2011 rohm co., ltd. all rights reserved. technical note ba9743afv, ba9744fv, ba9741f/fs 12/16 2011.04 - rev. b www.rohm.com ? 2011 rohm co., ltd. all rights reserved. technical note ba9743afv, ba9744fv, ba9741f/fs 13/16 2011.04 - rev. b www.rohm.com ? 2011 rohm co., ltd. all rights reserved. technical note ba9743afv, ba9744fv, ba9741f/fs 14/16 2011.04 - rev. b www.rohm.com ? 2011 rohm co., ltd. all rights reserved. technical note ba9743afv, ba9744fv, ba9741f/fs 15/16 2011.04 - rev. b www.rohm.com ? 2011 rohm co., ltd. all rights reserved. technical note ba9743afv, ba9744fv, ba9741f/fs heat dissipation characteristics technical note 16/16 ba9743afv, ba9744fv, ba9741f/fs www.rohm.com 2011.04 - rev.b ? 2011 rohm co., ltd. all rights reserved. ordering part number b a 9 7 4 3 a f v - e 2 part no. part no. 9743a 9744 9741 package fv:ssop-b16 fs:ssop-a16 f:sop16 packaging and forming specification e2: embossed tape and reel (unit : mm) sop16 8 0.1 16 1.27 0.11 1 9 0.3min 10 0.2 0.15 0.1 0.4 0.1 1.5 0.1 6.2 0.3 4.4 0.2 (max 10.35 include burr) ? order quantity needs to be multiple of the minimum quantity. r1120 a www.rohm.com ? 2011 rohm co., ltd. all rights reserved. notice rohm customer support system http://www.rohm.com/contact/ thank you for your accessing to rohm product informations. more detail product informations and catalogs are available, please contact us. notes no copying or reproduction of this document, in part or in whole, is permitted without the consent of rohm co.,ltd. the content specied herein is subject to change for improvement without notice. the content specied 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 specications, 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 specied 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 specied herein is intended only to show the typical functions of and examples of application circuits for the produc ts. 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 specied in this document are intended to be used with general-use electronic equipment or devices (such as audio visual equipment, ofce-automation equipment, commu- nication devices, electronic appliances and amusement devices). the products specied 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, re or any other damage caused in the event of the failure of any product, such as derating, redundancy, re 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, fuel- controller 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 specied 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. |
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