BD63843EFV-E2

Technical Note
7/8
BD63843EFV, BD63847EFV
www.rohm.com
2012.02 - Rev.
A
© 2012 ROHM Co., Ltd. All rights reserved.
(12) Input terminal of IC
This IC is a monolithic IC, and between each element there is a P+ isolation for element partition and a P substrate.
This P layer and each element’s N layer make up the P-N junction, and various parasitic elements are made up.
For example, when the resistance and transistor are connected to the terminal as shown in figure 3,
When GND(Terminal A) at the resistance and GND(Terminal B) at the transistor (NPN),
the P-N junction operates as a parasitic diode.
Also, when GND(Terminal B) at the transistor (NPN)
The parasitic NPN transistor operates with the N layers of other elements close to the aforementioned
parasitic diode.
Because of the IC’s structure, the creation of parasitic elements is inevitable from the electrical potential relationship. The
operation of parasitic elements causes interference in circuit operation, and can lead to malfunction and destruction.
Therefore, be careful not to use it in a way which causes the parasitic elements to operate, such as by applying voltage
that is lower than the GND (P substrate) to the input terminal.
Fig. 3 Pattern diagram of parasitic element
(13) Ground Wiring Pattern
When using both large current and small signal GND patterns, it is recommended to isolate the two ground patterns,
placing a single ground point at the ground potential of application so that the pattern wiring resistance and voltage
variations caused by large currents do not cause variations in the small signal ground voltage. Be careful not to change
the GND wiring pattern of any external components, either.
(14) TEST pin
Be sure to connect TEST pin to GND.
Resistor Transistor (NPN)
N
N N P
+
P
+
P
P substrate
GND
Pin A
N
N
P
+
P
+
P
P substrate
GND
Parasitic element
Pin B
N
GND
Pin A
P
aras
iti
c
element
Pin B
Other adjacent elements
E
B
C
GND
P
aras
iti
c
element
Parasitic element
B C
E
Technical Note
8/8
BD63843EFV, BD63847EFV
www.rohm.com
2012.02 - Rev.
A
© 2012 ROHM Co., Ltd. All rights reserved.
Ordering part number
B D 6 3 8 4 3
EF V
-E 2
形名
パッケージ
EFV=HTSSOP-B28
包装、フォーミング仕様
E2: リール状エンボステーピング
Order quantity needs to be multiple of the minimum quantity.
<Tape and Reel information>
Embossed carrier tape (with dry pack)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)
HTSSOP-B28
0.08
M
0.08 S
S
1.0±0.2
0.5±0.15
4
°
+
6
°
4
°
0.17
+0.05
-
0.03
1528
141
(2.9)
4.4±0.1
(5.5)
(MAX 10.05 include BURR)
0.625
6.4±0.2
9.7±0.1
1PIN MARK
1.0MAX
0.65
0.85±0.05
0.08±0.05
0.24
+0.05
-
0.04
R1120
A
www.rohm.com
© 2012 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 specied herein is subject to change for improvement without notice.
The content specied 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 specications,
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 specied 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 specied 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 specied in this document are intended to be used with general-use electronic
equipment or devices (such as audio visual equipment, ofce-automation equipment, commu-
nication devices, electronic appliances and amusement devices).
The Products specied 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 specied 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.

BD63843EFV-E2

Mfr. #:
Manufacturer:
Description:
Motor / Motion / Ignition Controllers & Drivers 36V 1A Stepping Motor Driver
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

Products related to this Datasheet