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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. embossed carrier tape tape quantity direction of feed 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 2500pcs e2 () direction of feed reel 1pin ? order quantity needs to be multiple of the minimum quantity. embossed carrier tape tape quantity direction of feed 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 2500pcs e2 () direction of feed reel 1pin (unit : mm) ssop-a16 13 87 0.8 9 0.11 15 45 3 11 0.3min 2 12 16 14 6 1 10 6.6 0.2 0.15 0.1 0.36 0.1 1.5 0.1 6.2 0.3 4.4 0.2 (max 6.95 include burr) 0.1 (unit : mm) ssop-b16 4.40.2 6.40.3 1.150.1 9 8 16 1 0.10 0.65 0.3min. 5.00.2 0.220.1 0.150.1 0.1 ? order quantity needs to be multiple of the minimum quantity. embossed carrier tape tape quantity direction of feed 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 2500pcs e2 () direction of feed reel 1pin
r1102 a www.rohm.com ? 2013 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 the information contained herein is subject to change without notice. before you use our products, please contact our sales representative and verify the latest specifica- tions : although rohm is continuously working to improve product reliability and quality, semicon- ductors 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. 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. 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. the products are intended for use in general electronic equipment (i.e. av/oa devices, communi- cation, consumer systems, gaming/entertainment sets) as well as the applications indicated in this document. the products specified in this document are not designed to be radiation tolerant. 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. do not use our products in applications requiring extremely high reliability, such as aerospace equipment, nuclear power control systems, and submarine repeaters. rohm shall have no responsibility for any damages or injury arising from non-compliance with the recommended usage conditions and specifications contained herein. 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. 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. 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. this document, in part or in whole, may not be reprinted or reproduced without prior consent of rohm. 1) 2) 3) 4) 5) 6) 7) 8) 9) 10) 11) 12) 13) 14)

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