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
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No.11028EBT10
2/16 2011.04 -
Rev. B
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Technical Note
BA9743AFV, BA9744FV, BA9741F/FS
3/16 2011.04 -
Rev. B
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Technical Note
BA9743AFV, BA9744FV, BA9741F/FS
4/16 2011.04 -
Rev. B
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Technical Note
BA9743AFV, BA9744FV, BA9741F/FS
5/16 2011.04 -
Rev. B
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© 2011 ROHM Co., Ltd. All rights reserved.
Technical Note
BA9743AFV, BA9744FV, BA9741F/FS
6/16 2011.04 -
Rev. B
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© 2011 ROHM Co., Ltd. All rights reserved.
Technical Note
BA9743AFV, BA9744FV, BA9741F/FS
7/16 2011.04 -
Rev. B
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Technical Note
BA9743AFV, BA9744FV, BA9741F/FS
8/16 2011.04 -
Rev. B
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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
RTCTVcc
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
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Technical Note
BA9743AFV, BA9744FV, BA9741F/FS
10/16 2011.04 -
Rev. B
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Technical Note
BA9743AFV, BA9744FV, BA9741F/FS
11/16 2011.04 -
Rev. B
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© 2011 ROHM Co., Ltd. All rights reserved.
Technical Note
BA9743AFV, BA9744FV, BA9741F/FS
12/16 2011.04 -
Rev. B
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© 2011 ROHM Co., Ltd. All rights reserved.
Technical Note
BA9743AFV, BA9744FV, BA9741F/FS
13/16 2011.04 -
Rev. B
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© 2011 ROHM Co., Ltd. All rights reserved.
Technical Note
BA9743AFV, BA9744FV, BA9741F/FS
14/16 2011.04 -
Rev. B
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© 2011 ROHM Co., Ltd. All rights reserved.
Technical Note
BA9743AFV, BA9744FV, BA9741F/FS
15/16 2011.04 -
Rev. B
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Technical Note
BA9743AFV, BA9744FV, BA9741F/FS
ēHeat dissipation characteristics
Technical Note
16/16
BA9743AFV, BA9744FV, BA9741F/FS
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© 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.
<Tape and Reel information>
Embossed carrier tapeTape
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.
<Tape and Reel information>
Embossed carrier tapeTape
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
453
11
0.3MIN
2
1216 14
61
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
4.4±0.2
6.4±0.3
1.15±0.1
9
8
16
1
0.10
0.65
0.3Min.
5.0±0.2
0.22±0.1
0.15±0.1
0.1
∗
Order quantity needs to be multiple of the minimum quantity.
<Tape and Reel information>
Embossed carrier tapeTape
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
R1120
A
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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 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 specied in this document are intended to be used with general-use electronic
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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
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