BD18IA5WEFJ
Product structureSilicon monolithic integrated circuitThis product is not designed protection against radioactive rays.
1/19
Datasheet
TSZ02201-0R6R0A600170-1-2
© 2012 ROHM Co., Ltd. All rights reserved.
www.rohm.com
TSZ2211114001 9.July.2012 Rev.001
500mA Variable / Fixed Output
LDO Regulator
BDxxIA5WEFJ
General Description
BDxxIA5WEFJ series are a LDO regulator with output current 0.5A. The output accuracy is ±1% of output voltage. With
external resistance, it is available to set the output voltage at random (from 0.8V to 4.5V) and also provides output voltage
fixed type without external resistance. It is used for the wide applications of digital appliances. It has package type:
HTSOP-J8. Over current protection (for protecting the IC destruction by output short circuit), circuit current ON/OFF switch
(for setting the circuit 0µA at shutdown mode), and thermal shutdown circuit (for protecting IC from heat destruction by over
load condition) are all built in. It is usable for ceramic capacitor and enables to improve smaller set and long-life.
Features
High accuracy reference voltage circuit
Built-in Over Current Protection circuit (OCP)
Built-in Thermal Shut Down circuit (TSD)
With shut down switch
Key Specifications
Input Power Supply Voltage range: 2.4V to 5.5V
Output voltage range(Variable type): 0.8V to 4.5V
Output voltage(Fixed type):
1.0V/1.2V/1.5V/1.8V/2.5V/3.0V/3.3V
Output current: 0.5A (Max.)
Shutdown current: 0μA (Typ.)
Operating temperature range: -25 to +85
Typica l A pplication Circuit
Package (Typ.) (Typ.) (Max.)
HTSOP-J8 4.90mm x 6.00mm x 1.00mm
HTSOP-J8
R1
VO VCC
EN
GND FIN R2
FB
COUT
CIN
CIN,COUT : Ceramic Capacitor
VO VCC
EN
GND FIN
VO
_
S COUT
CIN
CIN,COUT : Ceramic Capacitor
Output voltage variable type Output voltage fixed type
2/19
BDxxIA5WEFJ Datasheet
TSZ02201-0R6R0A600170-1-2
© 2012 ROHM Co., Ltd. All rights reserved.
www.rohm.com
TSZ2211115001 9.July.2012 Rev.001
Ordering Information
B D x x I A 5 W E F J - E 2
Part
Number
Output
voltage
00 : Variable
10:1.0V
12:1.2V
15:1.5V
18:1.8V
25:2.5V
30:3.0V
33:3.3V
Voltage
resistance
I:7V
Output
current
A5:0.5A
Shutdown
switch
“W”Built in
Package
EFJ HTSOP-J8
Packaging and forming specification
E2:Emboss tape reel
3/19
BDxxIA5WEFJ Datasheet
TSZ02201-0R6R0A600170-1-2
© 2012 ROHM Co., Ltd. All rights reserved.
www.rohm.com
TSZ2211115001 9.July.2012 Rev.001
Block Diagram
BD00IA5WEFJ(Output voltage variable type)
Pin Configuration
Pin Description
Pin No. Pin name Pin Function
1 VO Output pin
2 FB Feedback pin
3 GND GND pin
4 N.C. Non Connection (Used to connect GND or OPEN state.)
5 EN Enable pin
6 N.C. Non Connection (Used to connect GND or OPEN state.)
7 N.C. Non Connection (Used to connect GND or OPEN state.)
8 VCC Input pin
Reverse FIN Substrate(Connect to GND)
TOP VIEW
VO
FB
GND
N.C.
N.C.
N.C.
EN
VCC
Fig.1 Block Diagram
GND
EN
TSD
OCP
SOFT
START
VO
VCC
FB
4/19
BDxxIA5WEFJ Datasheet
TSZ02201-0R6R0A600170-1-2
© 2012 ROHM Co., Ltd. All rights reserved.
www.rohm.com
TSZ2211115001 9.July.2012 Rev.001
Block Diagram
BDxxIA5WEFJ(Output voltage fixed type)
Pin Configuration
Pin Description
Pin No. Pin name Pin Function
1 VO Output pin
2 VO_S Output voltage monitor pin
3 GND GND pin
4 N.C. Non Connection (Used to connect GND or OPEN state.)
5 EN Enable pin
6 N.C. Non Connection (Used to connect GND or OPEN state.)
7 N.C. Non Connection (Used to connect GND or OPEN state.)
8 VCC Input pin
Reverse FIN Substrate(Connect to GND)
TOP VIEW
VO
VO_S
GND
N.C.
N.C.
N.C.
EN
VCC
GND
EN
TSD
OCP
SOFT
START
VO
VCC
VO_S
Fig.2 Block Diagram
5/19
BDxxIA5WEFJ Datasheet
TSZ02201-0R6R0A600170-1-2
© 2012 ROHM Co., Ltd. All rights reserved.
www.rohm.com
TSZ2211115001 9.July.2012 Rev.001
Absolute Maximum Ratings (Ta=25)
Parameter Symbol Ratings Unit
Power supply voltage VCC 7.0 *1 V
EN voltage VEN 7.0 V
Power dissipation HTSOP-J8 Pd *2 2110
*2 mW
Operating Temperature Range Topr -25 to +85
Storage Temperature Range Tstg -55 to +150
Junction Temperature Tjmax +150
*1 Not to exceed Pd
*2 Reduced by 16.9mW/ for each increase in Ta of 1 over 25. (when mounted on a board 70mm×70mm×1.6mm glass-epoxy board, two layer)
Recommended Operating Ratings (Ta=25)
Ratings
Parameter Symbol
Min. Max.
Unit
Input power supply voltage VCC 2.4 5.5 V
EN voltage VEN 0.0 5.5 V
Output voltage setting range VO 0.8 4.5 V
Output current IO 0.0 0.5 A
Electrical Characteristics (Unless otherwise noted, Ta=25, EN=3V, VCC=3.3V, R1=16kΩ, R2=7.5kΩ)
Limits
Parameter Symbol Min. Typ. Max.
Unit Conditions
Circuit current at shutdown mode ISD - 0 5 µA VEN=0V, OFF mode
Bias current ICC - 250 500 µA
Line regulation Reg.I - 25 50 mV VCC =( VO+0.6V )5.5V
Load regulation Reg IO- 25 75 mV IO=00.5A
Minimun dropout Voltage VCO - 0.4 0.6 V VCC =3.3V, IO =0.5A
Output reference voltage(Variable type) VFB 0.792 0.800 0.808 V IO=0A
Output voltage(Fixed type) VO Vo×0.99 Vo Vo×1.01 V IO=0A
EN Low voltage VEN _Low 0 - 0.8 V
EN High voltage VEN _High 2.4 - 5.5 V
EN Bias current IEN 1 3 9 µA
6/19
BDxxIA5WEFJ Datasheet
TSZ02201-0R6R0A600170-1-2
© 2012 ROHM Co., Ltd. All rights reserved.
www.rohm.com
TSZ2211115001 9.July.2012 Rev.001
Fig.5
Input sequence 1
Co=1µF
Typical Performance Curves
(Unless otherwise noted, Ta=25, EN=3V, VCC=3.3V, R1=16kΩ, R2=7.5kΩ)
Fig.3
Transient Response (01.0A)
Co=1µF
Fig.4
Transient Response (1.00A)
Co=1µF
Fig.6
OFF sequence 1
Co=1µF
VO VO
IO
IO
VEN VEN
VCC VCC
VO VO
7/19
BDxxIA5WEFJ Datasheet
TSZ02201-0R6R0A600170-1-2
© 2012 ROHM Co., Ltd. All rights reserved.
www.rohm.com
TSZ2211115001 9.July.2012 Rev.001
Fig.9
Ta-VO (IO=0mA)
Fig.10
Ta-ICC
Fig.8
OFF sequence 2
Co=1µF
Fig.7
Input sequence 2
Co=1µF
VEN VEN
VCC VCC
VO
VO
VO[V]
ICC[µA]
Ta[] Ta[]
8/19
BDxxIA5WEFJ Datasheet
TSZ02201-0R6R0A600170-1-2
© 2012 ROHM Co., Ltd. All rights reserved.
www.rohm.com
TSZ2211115001 9.July.2012 Rev.001
Fig.12
Ta-IEN
Fig.13
IO-VO
Fig.14
VCC-ISD
(VEN=0V)
Fig.11
Ta-ISD
(VEN=0V)
Ta[]
ISD [µA]
Ta[]
IEN[µA]
VCC[V]
ISD [µA]
VO[V]
I
O[A]
9/19
BDxxIA5WEFJ Datasheet
TSZ02201-0R6R0A600170-1-2
© 2012 ROHM Co., Ltd. All rights reserved.
www.rohm.com
TSZ2211115001 9.July.2012 Rev.001
Fig.16
TSD (IO=0mA)
Fig.17
OCP
Fig.18
Minimum dropout Voltage 1
(VCC=3.3V, IO=-0.5A)
Fig.15
VCC-VO (IO=0mA)
VO[V]
VO[V]
VO[V]
VCC[V] Ta[]
Ta[]
I
O[A]
10/19
BDxxIA5WEFJ Datasheet
TSZ02201-0R6R0A600170-1-2
© 2012 ROHM Co., Ltd. All rights reserved.
www.rohm.com
TSZ2211115001 9.July.2012 Rev.001
Fig.22
Minimum dropout Voltage 2
(VCC=2.4V, Ta=25)
Fig.20
IO-ICC
Fig.21
PSRR(IO=0mA)
I
O[A]
0.01
0.10
1.00
10.00
0 0.1 0.2 0.3 0.4 0.5
Io [A]
ESR [Ω]
Safety area
Fig.19
ESR Condencer
11/19
BDxxIA5WEFJ Datasheet
TSZ02201-0R6R0A600170-1-2
© 2012 ROHM Co., Ltd. All rights reserved.
www.rohm.com
TSZ2211115001 9.July.2012 Rev.001
Fig.24
Minimum dropout Voltage 4
(VCC=5.0V, Ta=25)
Fig.23
Minimum dropout Voltage 3
(VCC=3.3V, Ta=25)
I
O[A] I
O[A]
12/19
BDxxIA5WEFJ Datasheet
TSZ02201-0R6R0A600170-1-2
© 2012 ROHM Co., Ltd. All rights reserved.
www.rohm.com
TSZ2211115001 9.July.2012 Rev.001
Power dissipation
HTSOP-J8
Thermal design should allow operation within the following conditions. Note that the temperatures listed are the allowed
temperature limits, and thermal design should allow sufficient margin from the limits.
1. Ambient temperature Ta can be no higher than 85.
2. Chip junction temperature (Tj) can be no higher than 150.
Chip junction temperature can be determined as follows:
Calculation based on ambient temperature (Ta)
Tj=Ta+θj-a×W
Reference values
θj-aHTSOP-J8 153.2/W
113.6/W
59.2/W
33.3/W
1-layer substrate (copper foil density 0mm×0mm)
2-layer substrate (copper foil density 15mm×15mm)
2-layer substrate (copper foil density 70mm×70mm)
4-layer substrate (copper foil density 70mm×70mm)
Substrate size: 70mm×70mm×1.6mm (substrate with thermal via)
Most of the heat loss that occurs in the BDxxIA5WEFJ series are generated from the output Pch FET. Power loss is
determined by the total VCC-VO voltage and output current. Be sure to confirm the system input and output voltage and the
output current conditions in relation to the heat dissipation characteristics of the VCC and VO in the design. Bearing in mind
that heat dissipation may vary substantially depending on the substrate employed (due to the power package incorporated
in the
BDxxIA5WEFJ make certain to factor conditions such as substrate size into the thermal design.
Power consumption [W] = Input voltage (VCC) - Output voltage (VO) ×IO (Ave)
Example) Where VCC=3.3V, VO=2.5V, IO(Ave) = 0.1A,
Power consumption [W] = 3.3V - 2.5V ×0.1A
=0.08[W]
Measure condition: mounted on a ROHM board,
and IC
Substrate size: 70mm × 70mm × 1.6mm
(Substrate with thermal via)
Solder the substrate and package reverse
exposure heat radiation part
IC only
θj-a=249.5/W
1-layercopper foil are :0mm×0mm
θj-a=153.2/W
2-layercopper foil are :15mm×15mm
θj-a=113.6/W
2-layercopper foil are :70mm×70mm
θj-a=59.2/W
4-layercopper foil are :70mm×70mm
θj-a=33.3/W
Power Dissipation :Pd [W]
0 25 50 75 100 125 150
0
2.0
3.0
4.0
0.50W
周囲温度:Ta []
1.0
0.50W
0.82W
1.10W
2.11W
3.76W
Ambient Temperature :Ta []
13/19
BDxxIA5WEFJ Datasheet
TSZ02201-0R6R0A600170-1-2
© 2012 ROHM Co., Ltd. All rights reserved.
www.rohm.com
TSZ2211115001 9.July.2012 Rev.001
Input-to-Output Capacitor
It is recommended that a capacitor is placed nearby pin between Input pin and GND, output pin and GND.
A capacitor, between input pin and GND, is valid when the power supply impedance is high or drawing is long. Also as for a
capacitor, between output pin and GND, the greater the capacity, more sustainable the line regulation and it makes
improvement of characteristics by load change. However, please check by mounted on a board for the actual application.
Ceramic capacitor usually has difference, thermal characteristics and series bias characteristics, and moreover capacity
decreases gradually by using conditions.
For more detail, please be sure to inquire the manufacturer, and select the best ceramic capacitor.
Equivalent Series Resistance ESR (Ceramic Capacitor etc.)
ESR – IO characteristics
Please attach an anti-oscillation capacitor between VOand
GND. Capacitor usually has ESR(Equivalent Series
Resistance), and operates stable in ESR-IOrange, showed
right. Generally, ESR of ceramic, tantalum and electronic
capacitor etc. is different for each, so please be sure to check
a capacitor which is going to use, and use it inside the stable
operating region, showed right. Then, please evaluate for the
actual application.
DC Bias Voltage [V]
Ceramic capacitor capacity – DC bias characteristics
(Characteristics example)
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
10
0 1 2 3 4
Rated Voltage10V
B1 characteristics
Rated Voltage4V
X6S characteristics
Capacitance Change [%]
Rated Voltage:10V
F characteristics
Rated Voltage6.3V
B characteristics
B characteristics
Rated Voltage10V
0.01
0.10
1.00
10.00
00.1 0.2 0.3 0.4 0.5
Io [A]
ESR [Ω]
Safety area
14/19
BDxxIA5WEFJ Datasheet
TSZ02201-0R6R0A600170-1-2
© 2012 ROHM Co., Ltd. All rights reserved.
www.rohm.com
TSZ2211115001 9.July.2012 Rev.001
Evaluation Boa r d Circuit
Evaluation Board Parts List
Designation Value Part No. Company Designation Value Part No. Company
R1 16kΩ MCR01PZPZF1602 ROHM C4
R2 7.5kΩ MCR01PZPZF7501 ROHM C5 1μF CM105B105K16A KYOCERA
R3 C6
R4 C7
R5 C8
R6 C9
C1 1μF CM105B105K16A KYOCERA C10
C2 U1
BD00IA5WEFJ ROHM
C3 U2
Board Layout
Input capacitor CIN of VCC (Vin) should be placed very close to VCC(VIN) pin as possible, and used broad wiring pattern.
Output capacitor COUT also should be placed close to IC pin as possible. In case connected to inner layer GND plane,
please use several through hole.
FB pin has comparatively high impedance, and is apt to be effected by noise, so floating capacity should be minimum as
possible. Please be careful in wiring drawing
Please take GND pattern space widely, and design layout to be able to increase radiation efficiency.
For output voltage setting
Output voltage can be set by FB pin voltage(0.800V typ.)and external resistance R1, R2.
(The use of resistors with R1+R2=1k to 90k is recommended)
VO = VFB× R1+R2
R2
N.C
GND
FB N.C
N.C.
VO
2
VO
C7
3
4
7
5
U1
8
C1
C2
C3
R1
R2
C6
C5
1 VCC
6
EN
GND
SW1
EN
FIN
VO
EN
GND
(
VCC VIN )
CIN
R1 R2
COUT
15/19
BDxxIA5WEFJ Datasheet
TSZ02201-0R6R0A600170-1-2
© 2012 ROHM Co., Ltd. All rights reserved.
www.rohm.com
TSZ2211115001 9.July.2012 Rev.001
I/O Equivalent Circuits (Output Voltage Vairable type)
8pin(VCC) / 1pin(VO) 2pin(FB) 5pin(EN)
I/O Equivalent Circuits (Output Voltage Fix e d type )
2pin(FB)
8pin(VCC)
1pn(VO)
5pin(EN) 520kΩ
480kΩ
8pin(VCC) / 1pin(VO) 2pin(VO_S) 5pin(EN)
8pin(VCC)
1pin(VO)
2pin(VO_S) 5pin(EN) 520kΩ
480kΩ
16/19
BDxxIA5WEFJ Datasheet
TSZ02201-0R6R0A600170-1-2
© 2012 ROHM Co., Ltd. All rights reserved.
www.rohm.com
TSZ2211115001 9.July.2012 Rev.001
Operational Notes
(1) Absolute maximum ratings
An excess in the absolute maximum ratings, such as supply voltage, temperature range of operating conditions, etc., can
break down the devices, thus making impossible to identify breaking mode, such as a short circuit or an open circuit. If
any over rated values will expect to exceed the absolute maximum ratings, consider adding circuit protection devices,
such as fuses.
(2) Connecting the power supply connector backward
Connecting of the power supply in reverse polarity can damage IC. Take precautions when connecting the power supply
lines. An external direction diode can be added.
(3) Power supply lines
Design PCB layout pattern to provide low impedance GND and supply lines. To obtain a low noise ground and supply line,
separate the ground section and supply lines of the digital and analog blocks. Furthermore, for all power supply terminals
to ICs, connect a capacitor between the power supply and the GND terminal. When applying electrolytic capacitors in the
circuit, not that capacitance characteristic values are reduced at low temperatures.
(4) GND voltage
The potential of GND pin must be minimum potential in all operating conditions.
(5) Thermal design
Use a thermal design that allows for a sufficient margin in light of the power dissipation (Pd) in actual operating conditions.
(6) Off leak in high temperature.
Off-leak in high temperature may increase because of manufacturing of IC diviation.
Design in cousideration with graph of typ, worst is shown below.
(7) Inter-pin shorts and mounting errors
Use caution when positioning the IC for mounting on printed circuit boards. The IC may be damaged if there is any
connection error or if pins are shorted together.
(8) Actions in strong electromagnetic field
Use caution when using the IC in the presence of a strong electromagnetic field as doing so may cause the IC to
malfunction.
(9) ASO
When using the IC, set the output transistor so that it does not exceed absolute maximum ratings or ASO.
(10) Thermal shutdown circuit
The IC incorporates a built-in thermal shutdown circuit (TSD circuit). The thermal shutdown circuit (TSD circuit) is
designed only to shut the IC off to prevent thermal runaway. It is not designed to protect the IC or guarantee its operation.
Do not continue to use the IC after operating this circuit or use the IC in an environment where the operation of this circuit
is assumed.
TSD ON Temperature[] (typ.) Hysteresis Temperature [] (typ.)
BDxxIA5WEFJ 175 15
Ta-Ileak
0
0.1
0.2
0.3
0.4
0.5
25 50 75 100 125 150
Temperature ()
Ileak (mA)
typ
worst
17/19
BDxxIA5WEFJ Datasheet
TSZ02201-0R6R0A600170-1-2
© 2012 ROHM Co., Ltd. All rights reserved.
www.rohm.com
TSZ2211115001 9.July.2012 Rev.001
(11) Testing on application boards
When testing the IC on an application board, connecting a capacitor to a pin with low impedance subjects the IC to stress.
Always discharge capacitors after each process or step. Always turn the IC’s power supply off before connecting it to or
removing it from a jig or fixture during the inspection process. Ground the IC during assembly steps as an antistatic
measure. Use similar precaution when transporting or storing the IC.
(12) Regarding input pin of the IC
This monolithic IC contains P+ isolation and P substrate layers between adjacent elements in order to keep them
isolated.
P-N junctions are formed at the intersection of these P layers with the N layers of other elements, creating a parasitic
diode or transistor. For example, the relation between each potential is as follows:
When GND > Pin A and GND > Pin B, the P-N junction operates as a parasitic diode.
When GND > Pin B, the P-N junction operates as a parasitic transistor.
Parasitic diodes can occur inevitable in the structure of the IC. The operation of parasitic diodes can result in mutual
interference among circuits, operational faults, or physical damage. Accordingly, methods by which parasitic diodes
operate, such as applying a voltage that is lower than the GND (P substrate) voltage to an input pin, should not be used.
(13) Ground Wiring Pattern.
When using both small signal and large current 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.
Status of this document
The Japanese version of this document is formal specification. A customer may use this translation version only for a reference
to help reading the formal version.
If there are any differences in translation version of this document formal version takes priority.
Resistor Transistor (NPN)
N N N P+ P
+
P
P substrate
GND
Parasitic element
Pin A
N
NP+
P+
P
P substrate
GND
Parasitic element
Pin B CB
E
N
GND
Pin A
P
aras
iti
c
element
Pin B
Other adjacent elements
E
B C
GND
P
aras
iti
c
element
18/19
BDxxIA5WEFJ Datasheet
TSZ02201-0R6R0A600170-1-2
© 2012 ROHM Co., Ltd. All rights reserved.
www.rohm.com
TSZ2211115001 9.July.2012 Rev.001
Physical Dimension Tape and Reel Information
Marking Diagram
xx Product Name
00 BD00IA5WEFJ
10 BD10IA5WEFJ
12 BD12IA5WEFJ
15 BD15IA5WEFJ
18 BD18IA5WEFJ
25 BD25IA5WEFJ
30 BD30IA5WEFJ
33 BD33IA5WEFJ
(Unit : mm)
HTSOP-J8
0.08 S
0.08
M
S
1.0MAX
0.85±0.05
1.27
0.08±0.08
0.42 +0.05
-
0.04
1.05±0.2
0.65±0.15
4
°
+
6
°
4
°
0.17 +0.05
-
0.03
234
568
(MAX 5.25 include BURR)
7
1
0.545
(3.2)
4.9±0.1
6.0±0.2
(2.4)
3.9±0.1
1PIN MARK
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
HTSOP-J8(TOP VIEW)
xxIA5W
Part Number Marking
LOT Number
1PIN MARK
19/19
BDxxIA5WEFJ Datasheet
TSZ02201-0R6R0A600170-1-2
© 2012 ROHM Co., Ltd. All rights reserved.
www.rohm.com
TSZ2211115001 9.July.2012 Rev.001
Revision History
Date Revision Changes
9.July.2012 001 New Release
Datasheet
Datasheet
Notice - Rev.003
© 2012 ROHM Co., Ltd. All rights reserved.
Notice
General Precaution
1) Before you use our Products, you are requested to carefully read this document and fully understand its contents.
ROHM shall not be in any way responsible or liable for failure, malfunction or accident arising from the use of any
ROHM’s Products against warning, caution or note contained in this document.
2) All information contained in this document is current as of the issuing date and subject to change without any prior
notice. Before purchasing or using ROHM’s Products, please confirm the latest information with a ROHM sales
representative.
Precaution on using ROHM Products
1) Our Products are designed and manufactured for application in ordinary electronic equipments (such as AV equipment,
OA equipment, telecommunication equipment, home electronic appliances, amusement equipment, etc.). If you
intend to use our Products in devices requiring extremely high reliability (such as medical equipment, transport
equipment, traffic equipment, aircraft/spacecraft, nuclear power controllers, fuel controllers, car equipment including car
accessories, safety devices, etc.) and whose malfunction or failure may cause loss of human life, bodily injury or
serious damage to property (“Specific Applications”), please consult with the ROHM sales representative in advance.
Unless otherwise agreed in writing by ROHM in advance, ROHM shall not be in any way responsible or liable for any
damages, expenses or losses incurred by you or third parties arising from the use of any ROHM’s Products for Specific
Applications.
2) ROHM designs and manufactures its Products subject to strict quality control system. However, semiconductor
products can fail or malfunction at a certain rate. Please be sure to implement, at your own responsibilities, adequate
safety measures including but not limited to fail-safe design against the physical injury, damage to any property, which
a failure or malfunction of our Products may cause. The following are examples of safety measures:
[a] Installation of protection circuits or other protective devices to improve system safety
[b] Installation of redundant circuits to reduce the impact of single or multiple circuit failure
3) Our Products are designed and manufactured for use under standard conditions and not under any special or
extraordinary environments or conditions, as exemplified below. Accordingly, ROHM shall not be in any way
responsible or liable for any damages, expenses or losses arising from the use of any ROHM’s Products under any
special or extraordinary environments or conditions. If you intend to use our Products under any special or
extraordinary environments or conditions (as exemplified below), your independent verification and confirmation of
product performance, reliability, etc, prior to use, must be necessary:
[a] Use of our Products in any types of liquid, including water, oils, chemicals, and organic solvents
[b] Use of our Products outdoors or in places where the Products are exposed to direct sunlight or dust
[c] Use of our Products in places where the Products are exposed to sea wind or corrosive gases, including Cl2,
H2S, NH3, SO2, and NO2
[d] Use of our Products in places where the Products are exposed to static electricity or electromagnetic waves
[e] Use of our Products in proximity to heat-producing components, plastic cords, or other flammable items
[f] Sealing or coating our Products with resin or other coating materials
[g] Use of our Products without cleaning residue of flux (even if you use no-clean type fluxes, cleaning residue of
flux is recommended); or Washing our Products by using water or water-soluble cleaning agents for cleaning
residue after soldering
[h] Use of the Products in places subject to dew condensation
4) The Products are not subject to radiation-proof design.
5) Please verify and confirm characteristics of the final or mounted products in using the Products.
6) In particular, if a transient load (a large amount of load applied in a short period of time, such as pulse) is applied,
confirmation of performance characteristics after on-board mounting is strongly recommended. Avoid applying power
exceeding normal rated power; exceeding the power rating under steady-state loading condition may negatively affect
product performance and reliability.
7) De-rate Power Dissipation (Pd) depending on Ambient temperature (Ta). When used in sealed area, confirm the actual
ambient temperature.
8) Confirm that operation temperature is within the specified range described in the product specification.
9) ROHM shall not be in any way responsible or liable for failure induced under deviant condition from what is defined in
this document.
Datasheet
Datasheet
Notice - Rev.003
© 2012 ROHM Co., Ltd. All rights reserved.
Precaution for Mounting / Circuit board design
1) When a highly active halogenous (chlorine, bromine, etc.) flux is used, the residue of flux may negatively affect product
performance and reliability.
2) In principle, the reflow soldering method must be used; if flow soldering method is preferred, please consult with the
ROHM representative in advance.
For details, please refer to ROHM Mounting specification
Precautions Regarding Application Examples and External Circuits
1) If change is made to the constant of an external circuit, please allow a sufficient margin considering variations of the
characteristics of the Products and external components, including transient characteristics, as well as static
characteristics.
2) You agree that application notes, reference designs, and associated data and information contained in this document
are presented only as guidance for Products use. Therefore, in case you use such information, you are solely
responsible for it and you must exercise your own independent verification and judgment in the use of such information
contained in this document. ROHM shall not be in any way responsible or liable for any damages, expenses or losses
incurred by you or third parties arising from the use of such information.
Precaution for Electrostatic
This Product is electrostatic sensitive product, which may be damaged due to electrostatic discharge. Please take proper
caution in your manufacturing process and storage so that voltage exceeding the Products maximum rating will not be
applied to Products. Please take special care under dry condition (e.g. Grounding of human body / equipment / solder iron,
isolation from charged objects, setting of Ionizer, friction prevention and temperature / humidity control).
Precaution for Storage / Transportation
1) Product performance and soldered connections may deteriorate if the Products are stored in the places where:
[a] the Products are exposed to sea winds or corrosive gases, including Cl2, H2S, NH3, SO2, and NO2
[b] the temperature or humidity exceeds those recommended by ROHM
[c] the Products are exposed to direct sunshine or condensation
[d] the Products are exposed to high Electrostatic
2) Even under ROHM recommended storage condition, solderability of products out of recommended storage time period
may be degraded. It is strongly recommended to confirm solderability before using Products of which storage time is
exceeding the recommended storage time period.
3) Store / transport cartons in the correct direction, which is indicated on a carton with a symbol. Otherwise bent leads
may occur due to excessive stress applied when dropping of a carton.
4) Use Products within the specified time after opening a humidity barrier bag. Baking is required before using Products of
which storage time is exceeding the recommended storage time period.
Precaution for Product Label
QR code printed on ROHM Products label is for ROHM’s internal use only.
Precaution for Disposition
When disposing Products please dispose them properly using an authorized industry waste company.
Precaution for Foreign Exchange and Foreign Trade act
Since our Products might fall under controlled goods prescribed by the applicable foreign exchange and foreign trade act,
please consult with ROHM representative in case of export.
Precaution Regarding Intellectual Property Rights
1) All information and data including but not limited to application example contained in this document is for reference
only. ROHM does not warrant that foregoing information or data will not infringe any intellectual property rights or any
other rights of any third party regarding such information or data. ROHM shall not be in any way responsible or liable
for infringement of any intellectual property rights or other damages arising from use of such information or data.:
2) No license, expressly or implied, is granted hereby under any intellectual property rights or other rights of ROHM or any
third parties with respect to the information contained in this document.
Datasheet
Datasheet
Notice - Rev.003
© 2012 ROHM Co., Ltd. All rights reserved.
Other Precaution
1) The information contained in this document is provided on an “as is” basis and ROHM does not warrant that all
information contained in this document is accurate and/or error-free. ROHM shall not be in any way responsible or
liable for any damages, expenses or losses incurred by you or third parties resulting from inaccuracy or errors of or
concerning such information.
2) This document may not be reprinted or reproduced, in whole or in part, without prior written consent of ROHM.
3) The Products may not be disassembled, converted, modified, reproduced or otherwise changed without prior written
consent of ROHM.
4) In no event shall you use in any way whatsoever the Products and the related technical information contained in the
Products or this document for any military purposes, including but not limited to, the development of mass-destruction
weapons.
5) The proper names of companies or products described in this document are trademarks or registered trademarks of
ROHM, its affiliated companies or third parties.
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