bd00ia5mefj-ag凯发旗舰厅
面向车载设备的0.5a可变输出／固定输出ldo稳压器bdxxia5mefj-m系列是可提供0.5a输出电流的稳压器。输出精度为±1%。有可使用外接电阻在0.8v～4.5v范围内任意设置输出电压的可变型以及1.0v/1.2v/1.5v/1.8v/2.5v/3.0v/3.3v固定输出型两种。封装组件采用散热性优良的htsop-j8。本机型内置用于防止因输出短路等发生ic破坏的过电流保护电路、关断时使电路电流为0µa的on/off开关、以及防止因过负荷状态等使ic发生热破坏的温度保护电路。另外，采用了陶瓷电容器，有助于整机的小型化和长寿化。
8-channel power tree reference design
for automotive adas and info-display
主要规格
功能安全:
特性：
ch
1
withstand voltage (max.)[v]
7
vin(min.)[v]
2.4
vin(max.)[v]
5.5
iout(max.)[a]
0.5
vout type
adjustable
vout accuracy
±1.0% (ta=25℃)
circuit current[ma]
0.25
dropout voltage (typ.)[v]
0.4(io=0.5a)
ripple rejection [db]
60
load regulation[mv]
25(io=0 to 500ma)
output capacitor[µf]
1
shutdown function
yes
thermal shut-down
yes
over current protection
yes
over voltage protection
no
under voltage lock out
no
discharge function
no
soft start
yes
operating temperature (min.)[°c]
-40
operating temperature (max.)[°c]
105
common standard
aec-q100 (automotive grade)
特点：
- high accuracy reference voltage circuit
- built-in over current protection circuit (ocp)
- built-in thermal shut down circuit (tsd)
- with shut down switch
- aec-q100 qualified
reference design / application evaluation kit
-
- reference design - refrpt001
- cispr25 class5 compliant 8 rails power tree reference design for automotive adas/infotainment application
this reference design is a power tree solution board developed for infotainment devices such as automotive clusters and center information displays and for ecus for adas application. the power system that can support functional safety is integrated on a single board to achieve the optimal configuration as a power tree. excellent emc performance that meets cispr25 class 5 even at all power supply rails are enabled, and reduces heat generation of each device by distributing high-efficiency dcdcs. in addition, two supervisor ics with self-diagnosis functions can monitor the output of all power rails and contribute to a higher level of functional safety.
- automotive infotainment/adas 8-channels power tree reference design
- verified to satisfy emc cispr 25 class 5 standard without common mode filter
- in order to avoid the am radio frequency bands all dc/dc converters operate at a switching frequency of 2.2 mhz or higher.
- thermal characteristics tested
- voltage monitoring for 8-channel power tree to improve the functional safety asil level
- space saving by integrating multiple power trees
