BU18RL82-M [ROHM]

用于汽车多屏显示器的SerDes IC;
BU18RL82-M
型号: BU18RL82-M
厂家: ROHM    ROHM
描述:

用于汽车多屏显示器的SerDes IC

显示器
文件: 总13页 (文件大小:869K)
中文:  中文翻译
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Product Brief  
Clockless Link-BD  
Clockless Link-BD Deserializer  
with LVDS Interface for Automotive  
BU18RL82-M  
General Description  
Key Specifications  
BU18RL82-M supports LVDS data transmission by  
ROHM's original CDR (Clock Data Recovery) technology.  
This chip is serial interface receiver IC of the Clockless  
Link-BD series.  
Supply Voltage Range: VDDIO  
1.7 V to 3.6 V  
3.0 V to 3.6 V  
1.1 V to 1.3 V  
1.1 V to 1.3 V  
LVDD  
AVDD  
VDD  
BU18RL82-M converts Clockless link stream into a  
LVDS format, and transmits through one or two ports of  
LVDS.  
Flexible Input / Output mode is suitable for a variety of  
application interface.  
Clockless Link-BD Data Rate:  
Forward Channel  
Back Channel  
3.6 Gbps/lane (Max)  
16.875 Mbps/lane (Typ)  
135 MHz (Max)  
LVDS Frequency:  
I2C Clock Frequency:  
SSCG:  
1 MHz (Max)  
Modulation Frequency  
Modulation Ratio  
30 kHz to 200 kHz  
Up to 2 %  
Features  
AEC-Q100 Qualified (Note 1)  
Operating Temperature Range: -40 °C to +105 °C  
Functional Safety Supportive Automotive Products  
Input Interface: Clockless Link-BD 2-lane  
Output Interface: LVDS 2-port  
Low EMI Transmission by Original DC Balance  
Protocol and Scrambling  
Package  
VQFN64FBV090  
W (Typ) x D (Typ) x H (Max)  
9.0 mm x 9.0 mm x 1.0 mm  
Support Reduced Swing LVDS Output for Low EMI  
Supported Functions  
Daisy Chain Mode  
Pattern Generator  
SSCG (Spread Spectrum Clock Generator)  
I2C Master  
General-Purpose Input/Output (GPIO) 8 pins  
Connect Ability Check  
CRC  
Frame Stop Detection  
Eye Pattern  
(Note 1) Grade2  
Applications  
Car Navigation System  
CID (Center Information Display)  
HUD (Head up Display)  
www.rohm.com  
© 2022 ROHM Co., Ltd. All rights reserved.  
Product Brief  
7.Jun.2022 Rev.001  
1/10  
Product Brief  
BU18RL82-M  
Block Diagram  
VDD  
VDDIO  
AVDD  
LVDD  
2
8
CLRX0P  
CLRX0N  
TXA_0P  
TXA_0N  
TXA_1P  
TXA_1N  
TXA_2P  
TXA_2N  
TXA_3P  
TXA_3N  
CLL Rx  
Analog  
LVDS  
Tx  
BKC Tx  
Analog  
2
LVDS Tx  
PLL  
TXA_CKP  
TXA_CKN  
CLL Rx  
Logic  
Data Mapping  
2
CLRX1P  
CLRX1N  
CLL Rx  
Analog  
LVDS Tx  
Logic  
8
2
TXB_0P  
TXB_0N  
TXB_1P  
TXB_1N  
TXB_2P  
TXB_2N  
TXB_3P  
TXB_3N  
BKC Tx  
Analog  
LVDS  
Tx  
SSCG  
LVDS Tx  
PLL  
CLKIN  
TXB_CKP  
TXB_CKN  
SSCG  
CLL Rx  
Monitor  
Analog  
2
EQOUTP  
EQOUTN  
Fail Detector  
GPIO  
IRQ  
Back channel  
Logic  
8
GPIO[7:0]  
TEST  
SDA  
SCL  
I2C Master  
ADC  
BKC Rx  
Analog  
CLL Tx  
Analog  
OSC  
IDS  
Hardware reset  
XRST  
2
CLTXP  
CLTXN  
RSVD  
GND  
Figure 1. Block Diagram  
www.rohm.com  
© 2022 ROHM Co., Ltd. All rights reserved.  
Product Brief  
7.Jun.2022 Rev.001  
2/10  
Product Brief  
BU18RL82-M  
SerDes Application Examples  
Figure 2. SerDes Application Example 1 (Normal Connection)  
Figure 3. SerDes Application Example 2 (Daisy Chain Connection)  
www.rohm.com  
© 2022 ROHM Co., Ltd. All rights reserved.  
Product Brief  
7.Jun.2022 Rev.001  
3/10  
Product Brief  
BU18RL82-M  
Application Examples  
STP (Shielded Twisted Pair) Cable  
Serializer : MIPI DSI 4-lane 2-port Input, Clockless Link-BD 2-lane Output  
AVDD = VDD = 1.2 V, VDDIO = LVDD = 1.8 V  
Deserializer : Clockless Link-BD 2-lane Input, LVDS 2-port Output  
AVDD = VDD = 1.2 V, VDDIO = 1.8 V, LVDD = 3.3 V  
*Connect BU18TL82-M MIPI/LVDS pins to GND when not used.  
*Leave open when BU18TL82-M CLTX0P/N, CLTX1P/N not used.  
*Leave open when BU18RL82-M CLRX0P/N, CLRX1P/N not used.  
*Leave open when BU18RL82-M CLTXP/N not used.  
1.8 V  
VDDIO  
VDDIO  
10 μF  
1.8 V  
VDDIO  
VDDIO  
VDDIO  
1.8 V  
LVDD  
10 μF  
LVDD  
10 μF  
BU18TL82-M  
BU18RL82-M  
LVDD  
3.3 V  
1.2 V  
LVDD  
LVDD  
AVDD  
AVDD  
10 μF  
1 µF  
1 µF  
10 µF  
10 µF  
1.2 V  
100 nF  
100 nF  
100 nF  
100 nF  
AVDD  
AVDD  
AVDD  
CLTX0P  
CLTX0N  
CLRX0P  
CLRX0N  
VDD  
VDD  
VDD  
VDD  
VDD  
1 µF  
1 µF  
10 µF  
10 µF  
STP Cable  
STP Cable  
VDD  
VDD  
VDD  
VDD  
100 nF  
100 nF  
100 nF  
100 nF  
CLTX1P  
CLTX1N  
CLRX1P  
CLRX1N  
1.8 V  
1.5 kΩ  
1.5 kΩ  
1.5 kΩ  
1.5 kΩ  
1.8 V  
1.5 kΩ  
SCL_A  
SDA_A  
1.5 kΩ  
SCL_B  
SDA_B  
SCL  
SDA  
100 nF  
100 nF  
EQOUTP  
EQOUTN  
TXA_0P  
TXA_0N  
TXA_1P  
TXA_1N  
TXA_2P  
TXA_2N  
TXA_3P  
TXA_3N  
TXA_CKP  
100 Ω  
RMA_0P/RLA_3P  
RMA_0N/RLA_3N  
RMA_1P/RLA_2P  
RMA_1N/RLA_2N  
RMA_2P/RLA_1P  
RMA_2N/RLA_1N  
RMA_3P/RLA_0P  
RMA_3N/RLA_0N  
RMA_CKP/RLA_CKP  
RMA_CKN/RLA_CKN  
LVDS  
A Port  
MIPI  
A Port  
Need external 100 Ω terminal resistor  
closed to LVDS receiver pin  
TXA_CKN  
TXB_0P  
TXB_0N  
TXB_1P  
TXB_1N  
TXB_2P  
TXB_2N  
TXB_3P  
TXB_3N  
TXB_CKP  
TXB_CKN  
RMB_0P/RLB_3P  
RMB_0N/RLB_3N  
RMB_1P/RLB_2P  
RMB_1N/RLB_2N  
RMB_2P/RLB_1P  
RMB_2N/RLB_1N  
RMB_3P/RLB_0P  
RMB_3N/RLB_0N  
RMB_CKP/RLB_CKP  
RMB_CKN/RLB_CKN  
LVDS  
B Port  
Need external 100 Ω terminal  
resistor closed to LVDS receiver pin  
MIPI  
B Port  
1.8 V  
4.7 kΩ  
SEL_MIPI  
100 nF  
CLTXP  
CLTXN  
STP Cable connect to  
Clockless Link BD Receiver  
100 nF  
GPIO0  
GPIO1  
GPIO2  
GPIO3  
GPIO4  
GPIO5  
GPIO6  
GPIO7  
1.8 V  
3.3 V  
N.C  
N.C  
GPIO0  
GPIO1  
GPIO2  
GPIO3  
GPIO4  
GPIO5  
GPIO6  
GPIO7  
IDS  
IDS  
10 kΩ  
1 μF  
10 kΩ  
1 μF  
CLKIN0  
CLKIN1  
TEST  
RSVD  
25 MHz to 27 MHz  
XTAL clock  
25 MHz to 27 MHz  
XTAL clock  
CLKIN  
TEST  
RSVD  
GND  
GND  
GND  
GND  
GND  
GND  
GND  
GND  
GND  
GND  
GND  
GND  
GND  
GND  
GND  
1.8 V  
1.8 V  
4.7 kΩ  
4.7 kΩ  
IRQ  
IRQ  
XRST  
XRST  
EXP-PAD  
EXP-PAD  
VDDIO  
LVDD  
LVDD  
VDDIO  
LVDD  
AVDD  
AVDD  
VDDIO  
VDDIO  
VDDIO  
LVDD  
LVDD  
0.1 μF  
0.01 μF  
0.1 μF  
0.01 μF  
0.1 μF  
0.01 μF  
0.1 μF  
0.01 μF  
0.1 μF  
0.01 μF  
0.1 μF  
0.01 μF  
0.1 μF  
0.01 μF  
0.1 μF  
0.01 μF  
0.1 μF  
0.01 μF  
0.1 μF  
0.01 μF  
0.1 μF  
0.01 μF  
0.1 μF  
0.01 μF  
GND  
GND  
GND  
GND  
GND  
GND  
GND  
GND  
GND  
GND  
GND  
GND  
VDD  
VDD  
VDD  
VDD  
GND  
VDD  
AVDD  
AVDD  
VDD  
VDD  
GND  
AVDD  
VDD  
VDD  
0.1 μF  
0.01 μF  
0.1 μF  
0.01 μF  
0.1 μF  
0.01 μF  
0.1 μF  
0.01 μF  
0.1 μF  
0.01 μF  
0.1 μF  
0.01 μF  
0.1 μF  
0.01 μF  
0.1 μF  
0.01 μF  
0.1 μF  
0.01 μF  
0.1 μF  
0.01 μF  
0.1 μF  
0.01 μF  
0.1 μF  
0.01 μF  
GND  
GND  
GND  
GND  
GND  
GND  
GND  
GND  
GND  
GND  
Figure 4. Application Diagram (STP Cable)  
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Product Brief  
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Product Brief  
BU18RL82-M  
Application Examples - continued  
Coaxial Cable  
Serializer : LVDS 4-lane 2-port Input, Clockless Link-BD 2-lane Output  
AVDD = VDD = 1.2 V, VDDIO = 1.8 V, LVDD = 3.3 V  
Deserializer : Clockless Link-BD 2-lane Input, LVDS 2-port Output  
AVDD = VDD = 1.2 V, VDDIO = 1.8 V, LVDD = 3.3 V  
*Connect BU18TL82-M MIPI/LVDS pins to GND when not used.  
*Leave open when BU18TL82-M CLTX0P/N, CLTX1P/N not used.  
*Leave open when BU18RL82-M CLRX0P/N, CLRX1P/N not used.  
*Leave open when BU18RL82-M CLTXP/N not used.  
1.8 V  
VDDIO  
VDDIO  
10 μF  
1.8 V  
VDDIO  
VDDIO  
VDDIO  
3.3 V  
LVDD  
10 μF  
LVDD  
10 μF  
BU18TL82-M  
BU18RL82-M  
LVDD  
3.3 V  
1.2 V  
LVDD  
LVDD  
AVDD  
AVDD  
10 μF  
1 µF  
1 µF  
10 µF  
10 µF  
1.2 V  
100 nF  
47 nF  
100 nF  
47 nF  
AVDD  
AVDD  
AVDD  
CLTX0P  
CLTX0N  
CLRX0P  
CLRX0N  
VDD  
VDD  
VDD  
VDD  
VDD  
Coaxial Cable  
Coaxial Cable  
1 µF  
1 µF  
10 µF  
10 µF  
50 Ω  
50 Ω  
50 Ω  
50 Ω  
VDD  
VDD  
VDD  
VDD  
100 nF  
47 nF  
100 nF  
47 nF  
CLTX1P  
CLTX1N  
CLRX1P  
CLRX1N  
1.8 V  
1.5 kΩ  
1.5 kΩ  
1.5 kΩ  
1.5 kΩ  
1.8 V  
1.5 kΩ  
SCL_A  
SDA_A  
1.5 kΩ  
SCL_B  
SDA_B  
SCL  
SDA  
100 nF  
100 nF  
EQOUTP  
EQOUTN  
TXA_0P  
TXA_0N  
TXA_1P  
TXA_1N  
TXA_2P  
TXA_2N  
TXA_3P  
TXA_3N  
TXA_CKP  
100 Ω  
RMA_0P/RLA_3P  
RMA_0N/RLA_3N  
RMA_1P/RLA_2P  
RMA_1N/RLA_2N  
RMA_2P/RLA_1P  
RMA_2N/RLA_1N  
RMA_3P/RLA_0P  
RMA_3N/RLA_0N  
RMA_CKP/RLA_CKP  
RMA_CKN/RLA_CKN  
LVDS  
A Port  
LVDS  
A Port  
Need external 100 Ω terminal resistor  
closed to LVDS receiver pin  
Need external 100 Ω terminal  
resistor closed to pin  
TXA_CKN  
TXB_0P  
TXB_0N  
TXB_1P  
TXB_1N  
TXB_2P  
TXB_2N  
TXB_3P  
TXB_3N  
TXB_CKP  
TXB_CKN  
RMB_0P/RLB_3P  
RMB_0N/RLB_3N  
RMB_1P/RLB_2P  
RMB_1N/RLB_2N  
RMB_2P/RLB_1P  
RMB_2N/RLB_1N  
RMB_3P/RLB_0P  
RMB_3N/RLB_0N  
RMB_CKP/RLB_CKP  
RMB_CKN/RLB_CKN  
LVDS  
B Port  
Need external 100 Ω terminal  
resistor closed to LVDS receiver pin  
LVDS  
B Port  
Need external 100 Ω terminal  
SEL_MIPI  
resistor closed to pin  
4.7 kΩ  
100 nF  
Coax Cable connect to  
Clockless Link BD Receiver  
CLTXP  
CLTXN  
47 nF  
GPIO0  
GPIO1  
GPIO2  
GPIO3  
GPIO4  
GPIO5  
GPIO6  
GPIO7  
1.8 V  
3.3 V  
50 Ω  
N.C  
N.C  
GPIO0  
GPIO1  
GPIO2  
GPIO3  
GPIO4  
GPIO5  
GPIO6  
GPIO7  
IDS  
IDS  
10 kΩ  
1 μF  
10 kΩ  
1 μF  
CLKIN0  
CLKIN1  
25 MHz to 27 MHz  
XTAL clock  
TEST  
RSVD  
25 MHz to 27 MHz  
XTAL clock  
1.8 V  
TEST  
RSVD  
GND  
GND  
GND  
GND  
GND  
GND  
GND  
CLKIN  
GND  
GND  
GND  
GND  
GND  
GND  
GND  
GND  
1.8 V  
4.7 kΩ  
4.7 kΩ  
IRQ  
IRQ  
XRST  
XRST  
EXP-PAD  
EXP-PAD  
VDDIO  
LVDD  
LVDD  
VDDIO  
LVDD  
AVDD  
AVDD  
VDDIO  
VDDIO  
VDDIO  
LVDD  
LVDD  
0.1 μF  
0.01 μF  
0.1 μF  
0.01 μF  
0.1 μF  
0.01 μF  
0.1 μF  
0.01 μF  
0.1 μF  
0.01 μF  
0.1 μF  
0.01 μF  
0.1 μF  
0.01 μF  
0.1 μF  
0.01 μF  
0.1 μF  
0.01 μF  
0.1 μF  
0.01 μF  
0.1 μF  
0.01 μF  
0.1 μF  
0.01 μF  
GND  
GND  
GND  
GND  
GND  
GND  
GND  
GND  
GND  
GND  
GND  
GND  
VDD  
VDD  
VDD  
VDD  
GND  
VDD  
AVDD  
AVDD  
VDD  
VDD  
GND  
AVDD  
VDD  
VDD  
0.1 μF  
0.01 μF  
0.1 μF  
0.01 μF  
0.1 μF  
0.01 μF  
0.1 μF  
0.01 μF  
0.1 μF  
0.01 μF  
0.1 μF  
0.01 μF  
0.1 μF  
0.01 μF  
0.1 μF  
0.01 μF  
0.1 μF  
0.01 μF  
0.1 μF  
0.01 μF  
0.1 μF  
0.01 μF  
0.1 μF  
0.01 μF  
GND  
GND  
GND  
GND  
GND  
GND  
GND  
GND  
GND  
GND  
Figure 5. Application Diagram (Coaxial Cable)  
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BU18RL82-M  
Operational Notes  
1. Reverse Connection of Power Supply  
Connecting the power supply in reverse polarity can damage the IC. Take precautions against reverse polarity when  
connecting the power supply, such as mounting an external diode between the power supply and the ICs power  
supply pins.  
2. Power Supply Lines  
Design the PCB layout pattern to provide low impedance supply lines. Separate the ground and supply lines of the  
digital and analog blocks to prevent noise in the ground and supply lines of the digital block from affecting the analog  
block. Furthermore, connect a capacitor to ground at all power supply pins. Consider the effect of temperature and  
aging on the capacitance value when using electrolytic capacitors.  
3. Ground Voltage  
Ensure that no pins are at a voltage below that of the ground pin at any time, even during transient condition.  
4. Ground Wiring Pattern  
When using both small-signal and large-current ground traces, the two ground traces should be routed separately but  
connected to a single ground at the reference point of the application board to avoid fluctuations in the small-signal  
ground caused by large currents. Also ensure that the ground traces of external components do not cause variations  
on the ground voltage. The ground lines must be as short and thick as possible to reduce line impedance.  
5. Recommended Operating Conditions  
The function and operation of the IC are guaranteed within the range specified by the recommended operating  
conditions. The characteristic values are guaranteed only under the conditions of each item specified by the electrical  
characteristics.  
6. Inrush Current  
When power is first supplied to the IC, it is possible that the internal logic may be unstable and inrush current may  
flow instantaneously due to the internal powering sequence and delays, especially if the IC has more than one power  
supply. Therefore, give special consideration to power coupling capacitance, power wiring, width of ground wiring,  
and routing of connections.  
7. Testing on Application Boards  
When testing the IC on an application board, connecting a capacitor directly to a low-impedance output pin may  
subject the IC to stress. Always discharge capacitors completely after each process or step. The IC’s power supply  
should always be turned off completely before connecting or removing it from the test setup during the inspection  
process. To prevent damage from static discharge, ground the IC during assembly and use similar precautions during  
transport and storage.  
8. Inter-pin Short and Mounting Errors  
Ensure that the direction and position are correct when mounting the IC on the PCB. Incorrect mounting may result in  
damaging the IC. Avoid nearby pins being shorted to each other especially to ground, power supply and output pin.  
Inter-pin shorts could be due to many reasons such as metal particles, water droplets (in very humid environment)  
and unintentional solder bridge deposited in between pins during assembly to name a few.  
9. Unused Input Pins  
Input pins of an IC are often connected to the gate of a MOS transistor. The gate has extremely high impedance and  
extremely low capacitance. If left unconnected, the electric field from the outside can easily charge it. The small  
charge acquired in this way is enough to produce a significant effect on the conduction through the transistor and  
cause unexpected operation of the IC. So unless otherwise specified, unused input pins should be connected to the  
power supply or ground line.  
10. Regarding the Input Pin of the IC  
In the construction of this IC, P-N junctions are inevitably formed creating parasitic diodes or transistors. The  
operation of these parasitic elements can result in mutual interference among circuits, operational faults, or physical  
damage. Therefore, conditions which cause these parasitic elements to operate, such as applying a voltage to an  
input pin lower than the ground voltage should be avoided. Furthermore, do not apply a voltage to the input pins  
when no power supply voltage is applied to the IC. Even if the power supply voltage is applied, make sure that the  
input pins have voltages within the values specified in the electrical characteristics of this IC.  
11. Ceramic Capacitor  
When using a ceramic capacitor, determine a capacitance value considering the change of capacitance with  
temperature and the decrease in nominal capacitance due to DC bias and others.  
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BU18RL82-M  
Operational Notes - continued  
12. Functional Safety  
“ISO 26262 Process Compliant to Support ASIL-*”  
A product that has been developed based on an ISO 26262 design process compliant to the ASIL level described in  
the datasheet.  
Safety Mechanism is Implemented to Support Functional Safety (ASIL-*)”  
A product that has implemented safety mechanism to meet ASIL level requirements described in the datasheet.  
Functional Safety Supportive Automotive Products”  
A product that has been developed for automotive use and is capable of supporting safety analysis with regard to the  
functional safety.  
Note: “ASIL-*” is stands for the ratings of “ASIL-A”, “-B”, “-C” or “-D” specified by each product's datasheet.  
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BU18RL82-M  
Ordering Information  
B U 1 8 R L 8  
2
-
M E 2  
Part Number  
Product Rank  
M: for Automotive  
Packaging Specification  
E2: Embossed tape and reel  
Marking Diagram  
VQFN64FBV090 (TOP VIEW)  
Part Number Marking  
BU18RL82  
LOT Number  
Pin 1 Mark  
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BU18RL82-M  
Physical Dimension and Packing Information  
Package Name  
VQFN64FBV090  
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BU18RL82-M  
Revision History  
Date  
Revision  
001  
Changes  
7.Jun.2022  
New Release  
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Notice  
Precaution on using ROHM Products  
(Note 1)  
1. If you intend to use our Products in devices requiring extremely high reliability (such as medical equipment  
,
aircraft/spacecraft, nuclear power controllers, 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  
ROHMs Products for Specific Applications.  
(Note1) Medical Equipment Classification of the Specific Applications  
JAPAN  
USA  
EU  
CHINA  
CLASS  
CLASSⅣ  
CLASSb  
CLASSⅢ  
CLASSⅢ  
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 not designed 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 (Exclude cases where no-clean type fluxes is used.  
However, recommend sufficiently about the residue.); 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 depending on ambient temperature. When used in sealed area, confirm that it is the use in  
the range that does not exceed the maximum junction 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 on a surface-mount products, the flow soldering method must  
be used on a through hole mount products. If the flow soldering method is preferred on a surface-mount products,  
please consult with the ROHM representative in advance.  
For details, please refer to ROHM Mounting specification  
Notice-PAA-E  
Rev.004  
© 2015 ROHM Co., Ltd. All rights reserved.  
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  
A two-dimensional barcode printed on ROHM Products label is for ROHMs 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 concerned goods might be fallen under listed items of export control prescribed by Foreign exchange and Foreign  
trade act, please consult with ROHM 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.  
2. ROHM shall not have any obligations where the claims, actions or demands arising from the combination of the  
Products with other articles such as components, circuits, systems or external equipment (including software).  
3. 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 Products or the information contained in this document. Provided, however, that ROHM  
will not assert its intellectual property rights or other rights against you or your customers to the extent necessary to  
manufacture or sell products containing the Products, subject to the terms and conditions herein.  
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-PAA-E  
Rev.004  
© 2015 ROHM Co., Ltd. All rights reserved.  
Daattaasshheeeett  
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.  
3. 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.  
Notice – WE  
Rev.001  
© 2015 ROHM Co., Ltd. All rights reserved.  

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