Datasheet Download

Datasheet
1A Fixed Output
LDO Regulators
BDxxHC0WEFJ
●General Description
BDxxHC0WEFJ series devices are LDO regulators with an output current of 1.0A. The output accuracy is ±1% of the output
voltage. Various fixed output voltage devices that do not use external resistors are available. It can be used for a wide
range of digital appliance applications. It has a small package type: HTSOP-J8 (4.90mm x 6.00mm x 1.00mm). These
devices have built in over current protection to protect the device when output is shorted, 0µA shutdown mode and thermal
shutdown circuit to protect the device during over load conditions. These LDO regulators are usable with ceramic capacitors
that enable a smaller layout and longer life.
●Features
„ +/-1% output voltage accuracy
„ Built-in Over Current Protection circuit (OCP)
„ Built-in Thermal Shut Down circuit (TSD)
„ Zero μA shutdown mode
●Package
HTSOP-J8
(Typ.)
(Typ.)
(Max.)
4.90mm x 6.00 mm x 1.00mm
●Key Specifications
„ Input Power Supply Voltage range:
4.5V to 8.0V
„ Output voltage: 1.5V/1.8V/2.5V/3.0V/3.3V/5V/6V/7V
„ Output current:
1.0A(Max.)
„ Shutdown current:
0μA(Typ.)
„ Operating temperature range:
-25℃ to +85℃
HTSOP-J8
●Typical Application Circuit
VCC
VO
CIN
VO_S
COUT
EN
GND
FIN
CIN,COUT : Ceramic Capacitor
○Product structure:Silicon monolithic integrated circuit
www.rohm.com
© 2012 ROHM Co., Ltd. All rights reserved.
TSZ22111・14・001
○This product is not designed protection against radioactive rays.
1/18
TSZ02201-0R6R0A600330-1-2
28.Dec.2012 Rev.002
Datasheet
BDxxHC0WEFJ
●Ordering Information
B
D
x
Part
Output
Number voltage
15:1.5V
18:1.8V
25:2.5V
30:3.0V
33:3.3V
50:5.0V
60:6.0V
70:7.0V
x
H
C
0
W
E
J
-
Input
voltage
range
Output
current
H:10V
C0:1.0A “W”:Included EFJ:HTSOP-J8
www.rohm.com
© 2012 ROHM Co., Ltd. All rights reserved.
TSZ22111・15・001
Shutdown
mode
F
Package
2/18
E2
Packaging and forming specification
E2:Emboss tape reel
TSZ02201-0R6R0A600330-1-2
28.Dec.2012 Rev.002
Datasheet
BDxxHC0WEFJ
●Block Diagram
BDxxHC0WEFJ
VCC
OCP
SOFT
START
VO
EN
TSD
VO_S
GND
Fig.1 Block Diagram
●Pin Configuration
TOP VIEW
VO
VCC
VO_S
N.C.
GND
N.C.
N.C.
EN
●Pin Description
Pin No.
1
2
3
4
5
6
7
8
Reverse
Pin name
VO
VO_S
GND
N.C.
EN
N.C.
N.C.
VCC
FIN
Pin Function
Output pin
Output voltage monitor pin
GND pin
No Connect (Connect to GND or leave OPEN)
Enable pin
No Connect (Connect to GND or leave OPEN)
No Connect (Connect to GND or leave OPEN)
Input pin
Substrate(Connect to GND)
www.rohm.com
© 2012 ROHM Co., Ltd. All rights reserved.
TSZ22111・15・001
3/18
TSZ02201-0R6R0A600330-1-2
28.Dec.2012 Rev.002
Datasheet
BDxxHC0WEFJ
●Absolute Maximum Ratings (Ta=25℃)
Parameter
Power supply voltage
EN voltage
Power dissipation
HTSOP-J8
Operating Temperature Range
Storage Temperature Range
Junction Temperature
Symbol
VCC
VEN
Ratings
10.0 *1
10.0
Unit
V
V
Pd*2
2110 *2
mW
Topr
Tstg
Tjmax
-25 to +85
-55 to +150
+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℃)
Parameter
Input power supply voltage
EN voltage
Output current
Symbol
VCC
VEN
IO
Ratings
Min.
4.5
0.0
0.0
Unit
Max.
8.0
8.0
1.0
V
V
A
●Electrical Characteristics (Unless otherwise noted, Ta=25℃, EN=3V, VCC=6V)
Parameter
Circuit current at shutdown mode
Bias current
Line regulation
Load regulation
Minimum dropout voltage1
Minimum dropout voltage2
Minimum dropout voltage3
Minimum dropout voltage4
Output voltage
EN Low voltage
EN High voltage
EN Bias current
www.rohm.com
© 2012 ROHM Co., Ltd. All rights reserved.
TSZ22111・15・001
Symbol
ISD
ICC
Reg.I
Reg IO
VCO1
VCO2
VCO3
VCO4
VO
VEN (Low)
VEN (High)
IEN
Min.
Limits
Typ.
Max.
-1
-1.5
VO×0.99
0
2.4
1
0
600
0.15
0.30
0.45
0.60
VO
3
5
900
1
1.5
0.23
0.46
0.69
0.92
VO×1.01
0.8
8.0
9
4/18
Unit
µA
µA
%
%
V
V
V
V
V
V
V
µA
Conditions
VEN=0V, OFF mode
VCC=( VO+0.92V )→8.0V
IO=0→1.0A
VCC=5V, IO =250mA
VCC=5V, IO =500mA
VCC=5V, IO =750mA
VCC=5V, IO =1.0A
IO=0A
TSZ02201-0R6R0A600330-1-2
28.Dec.2012 Rev.002
Datasheet
BDxxHC0WEFJ
●Typical Performance Curves
(Unless otherwise noted, Ta=25℃, EN=3V, VCC=6V)
VO
VO
IO
IO
Fig.3
Transient Response
(1.0→0A)
Co=1µF
Fig.2
Transient Response
(0→1.0A)
Co=1µF
VEN
VEN
VCC
VCC
VO
VO
Fig.4
Input sequence 1
Co=1µF
www.rohm.com
© 2012 ROHM Co., Ltd. All rights reserved.
TSZ22111・15・001
Fig.5
OFF sequence 1
Co=1µF
5/18
TSZ02201-0R6R0A600330-1-2
28.Dec.2012 Rev.002
Datasheet
BDxxHC0WEFJ
VEN
VEN
VCC
VCC
VO
VO
Fig.7
OFF sequence 2
Co=1µF
VO[V]
ICC[µA]
Fig.6
Input sequence 2
Co=1µF
Ta[℃]
Ta[℃]
Fig.9
Ta-ICC
Fig.8
Ta-VO (IO=0mA)
www.rohm.com
© 2012 ROHM Co., Ltd. All rights reserved.
TSZ22111・15・001
6/18
TSZ02201-0R6R0A600330-1-2
28.Dec.2012 Rev.002
Datasheet
IEN[µA]
ISD [µA]
BDxxHC0WEFJ
Ta[℃]
Ta[℃]
Fig.10
Ta-Isd
(VEN=0V)
VO[V]
ISD [µA]
Fig.11
Ta-IEN
IO[A]
VCC[V]
Fig.12
IO-VO
www.rohm.com
© 2012 ROHM Co., Ltd. All rights reserved.
TSZ22111・15・001
Fig.13
VCC-ISD
(VEN=0V)
7/18
TSZ02201-0R6R0A600330-1-2
28.Dec.2012 Rev.002
Datasheet
VO[V]
BDxxHC0WEFJ
Ta[℃]
Fig.15
TSD (IO=0mA)
VVo[V]
O[V]
Fig.14
VCC-VO (IO=0mA)
IO[A]
Ta[℃]
Fig.16
OCP
www.rohm.com
© 2012 ROHM Co., Ltd. All rights reserved.
TSZ22111・15・001
Fig.17
Minimum dropout Voltage 1
(VCC=5V、IO=-1.0A)
8/18
TSZ02201-0R6R0A600330-1-2
28.Dec.2012 Rev.002
Datasheet
Icc[µA]
BDxxHC0WEFJ
IO[A]
IO[A]
Fig.18
ESR condencer
Vdrop [V]
PSRR[dB]
Fig.19
IO-ICC
IO[A]
Fig.21
Minimum dropout Voltage 2
(VCC=4.5V、Ta=25℃)
Fig.20
PSRR (IO=0mA)
www.rohm.com
© 2012 ROHM Co., Ltd. All rights reserved.
TSZ22111・15・001
9/18
TSZ02201-0R6R0A600330-1-2
28.Dec.2012 Rev.002
Datasheet
Vdrop [V]
Vdrop [V]
BDxxHC0WEFJ
IO[A]
IO[A]
Fig.22
Minimum dropout Voltage 3
(VCC=6V、Ta=25℃)
www.rohm.com
© 2012 ROHM Co., Ltd. All rights reserved.
TSZ22111・15・001
Fig.23
Minimum dropout Voltage 4
(VCC=8V、Ta=25℃)
10/18
TSZ02201-0R6R0A600330-1-2
28.Dec.2012 Rev.002
Datasheet
BDxxHC0WEFJ
●Power Dissipation
◎HTSOP-J8
4.0
Power Dissipation :Pd [W]
⑤3.76W
Measurement condition: mounted on a ROHM board,
and IC
Substrate size: 70mm × 70mm × 1.6mm
(Substrate with thermal via)
・Solder the thermal pad to Ground
3.0
① IC only
θj-a=249.5℃/W
② 1-layer(copper foil are :0mm×0mm)
θj-a=153.2℃/W
③ 2-layer(copper foil are :15mm×15mm)
θj-a=113.6℃/W
④ 2-layer(copper foil are :70mm×70mm)
θj-a=59.2℃/W
⑤ 4-layer(copper foil are :70mm×70mm)
θj-a=33.3℃/W
④2.11W
2.0
③1.10W
1.0
②0.82W
①0.50W
0
0
25
50
75
100
125
150
Ambient 周囲温度:Ta
Temperature
[℃] :Ta [℃]
Thermal design should ensure operation within the following conditions. Note that the temperatures listed are the allowed
temperature limits and thermal design should allow sufficient margin beyond these 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×P
<Reference values>
θj-a: HTSOP-J8 153.2℃/W 1-layer substrate (copper foil density 0mm×0mm)
113.6℃/W 2-layer substrate (copper foil density 15mm×15mm)
59.2℃/W 2-layer substrate (copper foil density 70mm×70mm)
4-layer substrate (copper foil density 70mm×70mm)
33.3℃/W
Substrate size: 70mm×70mm×1.6mm (substrate with thermal via)
Most of the heat loss that occurs in the BDxxHC0WEFJ series is 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 as well as
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 BDxxHC0WEFJ series) 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=5.0V, VO=3.3V, IO(Ave) = 0.1A,
Power consumption [W] = 5.0 V - 3.3V ×0.1A
=0.17[W]
www.rohm.com
© 2012 ROHM Co., Ltd. All rights reserved.
TSZ22111・15・001
11/18
TSZ02201-0R6R0A600330-1-2
28.Dec.2012 Rev.002
Datasheet
BDxxHC0WEFJ
●Input-to-Output Capacitor
It is recommended that a capacitor (over 1uF) is placed near pins between the input pin and GND as well as the output pin
and GND. A capacitor, between input pin and GND, is valid when the power supply impedance is high or trace is long. Also,
as for the capacitor between the output pin and GND, the greater the capacitance, the more sustainable the line regulation
will be and the capacitor will make improvements of characteristics depending on the load. However, please check the
actual functionality of this part by mounting it on a board for the actual application. Ceramic capacitors usually have different,
thermal and equivalent series resistance characteristics, and moreover capacitance decreases gradually in use.
For additional details, please check with the manufacturer, and select the best ceramic capacitor for your application.
10
Rated Voltage:10V
B1 characteristics
Rated Voltage:10V
B characteristics
0
Capacitance Change [%]
-10
Rated Voltage:6.3V
B characteristics
-20
-30
-40
-50
Rated Voltage:10V
F characteristics
-60
Rated Voltage:4V
X6S characteristics
-70
-80
-90
-100
0
1
2
3
4
DC Bias Voltage [V]
Ceramic capacitor capacity – DC bias characteristics
(Characteristics example)
10.00
1.00
Safety Area
ESR [Ω]
●Equivalent Series Resistance ESR (Output capacitor)
To prevent oscillations, please attach a capacitor between
VO and GND. Capacitors usually have ESR (Equivalent
Series Resistance). Operation will be stable in the ESR-IO
range shown to the right. Ceramic, tantalum and
electrolytic Capacitors have different ESR values, so
please ensure that you are using a capacitor that operates
in the stable operating region shown on the right. Finally,
please evaluate in the actual application.
0.10
CO=1μF
0.01
0
0.2
0.4
0.6
0.8
1
Io [A]
ESR – IO characteristics
www.rohm.com
© 2012 ROHM Co., Ltd. All rights reserved.
TSZ22111・15・001
12/18
TSZ02201-0R6R0A600330-1-2
28.Dec.2012 Rev.002
Datasheet
BDxxHC0WEFJ
●Evaluation Board Circuit
U1
C7
1
C3
VCC
VO
8
C2
C6
C5
2
VO_S
N.C
7
GND
N.C
6
C1
VCC
GND
3
SW1
VO
4
N.C.
EN
EN
5
FIN
●Evaluation Board Parts List
Designation
Value
Part No.
Company
Designation
Value
Part No.
Company
C1
C2
1μF
‐
CM105B105K16A
‐
KYOCERA
-
C5
C6
1μF
CM105B105K16A
KYOCERA
C3
C4
‐
-
‐
-
-
C7
U1
‐
‐
‐
BDxxHC0WEFJ
‐
ROHM
●Board Layout
EN
GND
CIN
VCC (VIN)
COUT
VO
PCB layout considerations:
・Input capacitor CIN connected to VCC (VIN) should be placed as close to VCC(VIN) pin as possible.
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.
・VO_S pin has comparatively high impedance, and can be affected by noise, so stray capacitance should be as small as
possible. Please take care of this during layout.
・Please make GND pattern wide enough to handle thermal dissipation.
www.rohm.com
© 2012 ROHM Co., Ltd. All rights reserved.
TSZ22111・15・001
13/18
TSZ02201-0R6R0A600330-1-2
28.Dec.2012 Rev.002
Datasheet
BDxxHC0WEFJ
●I/O Equivalent Circuits
8pin (VCC) / 1pin (VO)
2pin (VO_S)
5pin (EN)
8pin (VCC)
5pin (EN)
2pin (VO_S)
2MΩ
1MΩ
1pin (VO)
www.rohm.com
© 2012 ROHM Co., Ltd. All rights reserved.
TSZ22111・15・001
14/18
TSZ02201-0R6R0A600330-1-2
28.Dec.2012 Rev.002
Datasheet
BDxxHC0WEFJ
●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 device, thus making it impossible to identify the damage mode, such as a short circuit or an open circuit.
If there is any possibility of exposure over the rated values, please 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 the IC. Take precautions when connecting the power
supply lines. An external direction diode can be added.
(3) Power supply lines
Design the 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 GND terminal. When using electrolytic capacitors in
a circuit, note that capacitance values are reduced at low temperatures and over time.
(4) GND voltage
The potential of the GND pin must be minimum potential under 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). 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.
(7). 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.
(8). ASO
When using the IC, set the output transistor so that it does not exceed absolute maximum ratings or ASO.
(9). 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.
BDxxHC0WEFJ
TSD ON Temperature[℃] (typ.)
175
Hysteresis Temperature [℃]
15
(typ.)
(10). 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.
www.rohm.com
© 2012 ROHM Co., Ltd. All rights reserved.
TSZ22111・15・001
15/18
TSZ02201-0R6R0A600330-1-2
28.Dec.2012 Rev.002
Datasheet
BDxxHC0WEFJ
(11). 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.
Resistor
Transistor (NPN)
Pin A
Pin B
C
B
Pin B
E
Pin A
N
N
P+
P+
P
N
N
Parasitic
element
P+
P
P
C
+
E
N
P substrate
P substrate
GND
Parasitic element
B
N
Parasitic element
GND
GND
GND
Parasitic
element
Other adjacent elements
(12). 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.
www.rohm.com
© 2012 ROHM Co., Ltd. All rights reserved.
TSZ22111・15・001
16/18
TSZ02201-0R6R0A600330-1-2
28.Dec.2012 Rev.002
Datasheet
BDxxHC0WEFJ
●Physical Dimension Tape and Reel Information
HTSOP-J8
<Tape and Reel information>
4°
(2.4)
3.9±0.1
6.0±0.2
8 7 6 5
+6°
−4°
1
1.05±0.2
(3.2)
0.65±0.15
4.9±0.1
(MAX 5.25 include BURR)
Tape
Embossed carrier tape
Quantity
2500pcs
E2
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
)
2 3 4
1PIN MARK
+0.05
0.17 -0.03
1.0MAX
0.545
S
0.08±0.08
0.85±0.05
1.27
+0.05
0.42 -0.04
0.08
M
0.08 S
Direction of feed
1pin
Reel
(Unit : mm)
∗ Order quantity needs to be multiple of the minimum quantity.
●Marking Diagram
HTSOP-J8 (TOP VIEW)
Part Number Marking
x x H C 0 W
LOT Number
xx
15
18
25
30
33
50
60
70
Product Name
BD15HC0WEFJ
BD18HC0WEFJ
BD25HC0WEFJ
BD30HC0WEFJ
BD33HC0WEFJ
BD50HC0WEFJ
BD60HC0WEFJ
BD70HC0WEFJ
1PIN MARK
www.rohm.com
© 2012 ROHM Co., Ltd. All rights reserved.
TSZ22111・15・001
17/18
TSZ02201-0R6R0A600330-1-2
28.Dec.2012 Rev.002
Datasheet
BDxxHC0WEFJ
●Revision History
Date
Revision
24.Aug.2012
28.Dec.2012
001
002
Changes
New Release
The description was modified.
www.rohm.com
© 2012 ROHM Co., Ltd. All rights reserved.
TSZ22111・15・001
18/18
TSZ02201-0R6R0A600330-1-2
28.Dec.2012 Rev.002
Datasheet
Notice
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
(Note 1)
, transport
intend to use our Products in devices requiring extremely high reliability (such as medical equipment
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.
(Note1) Medical Equipment Classification of the Specific Applications
JAPAN
USA
EU
CHINA
CLASSⅢ
CLASSⅡb
CLASSⅢ
CLASSⅢ
CLASSⅣ
CLASSⅢ
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.
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
Notice - GE
© 2014 ROHM Co., Ltd. All rights reserved.
Rev.002
Datasheet
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.
Other Precaution
1.
This document may not be reprinted or reproduced, in whole or in part, without prior written consent of ROHM.
2.
The Products may not be disassembled, converted, modified, reproduced or otherwise changed without prior written
consent of ROHM.
3.
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.
4.
The proper names of companies or products described in this document are trademarks or registered trademarks of
ROHM, its affiliated companies or third parties.
Notice - GE
© 2014 ROHM Co., Ltd. All rights reserved.
Rev.002
Datasheet
General Precaution
1. Before you use our Pro ducts, you are requested to care fully read this document and fully understand its contents.
ROHM shall n ot be in an y way responsible or liabl e for fa ilure, malfunction or acci dent arising from the use of a ny
ROHM’s Products against warning, caution or note contained in this document.
2. All information contained in this docume nt is current as of the issuing date and subj ect to change without any prior
notice. Before purchasing or using ROHM’s Products, please confirm the la test information with a ROHM sale s
representative.
3.
The information contained in this doc ument is provi ded on an “as is” basis and ROHM does not warrant that all
information contained in this document is accurate an d/or error-free. ROHM shall not be in an y way responsible or
liable for an y damages, expenses or losses incurred b y you or third parties resulting from inaccur acy or errors of or
concerning such information.
Notice – WE
© 2014 ROHM Co., Ltd. All rights reserved.
Rev.001
Similar pages