bd9p系列是兼顾高速响应和高效率的42v耐压车载一次dc/dc转换器ic。其特点是通过nano pulse control™实现的稳定且较大的降压比、通过扩频功能实现的低emi(低噪声)、在电池刚启动时也能稳定供电的高速响应性能,有助于降低系统功耗和降低bom成本。
包括adas的传感器、摄像头、雷达,以及车载信息娱乐、仪表盘、 bcm(车身控制模块)在内,适用于汽车中要求小型化、高效率化、高可靠性的应用。

8-channel power tree reference design
for automotive adas and info-display

主要规格

 
型号 | bd9p105efv-ce2
status | 可购买
封装 |
包装数量 | 2500
最小独立包装数量 | 2500
包装形态 | taping
rohs |

功能安全:

ag旗舰平台尊龙
类别 : fs supportive
a product that has been developed for automotive use and is capable of supporting safety analysis with regard to the functional safety.

特性:

ch

1

integrated fet / controller

integrated fet

topology

buck

synchronous / nonsynchronous

synchronous

vin1(min.)[v]

3.5

vin1(max.)[v]

40

vout1(min.)[v]

0.8

vout1(max.)[v]

8.5

iout1(max.)[a]

1

sw frequency(max.)[mhz]

2.2

light load mode

yes

en

yes

pgood

yes

operating temperature (min.)[°c]

-40

operating temperature (max.)[°c]

125

package size [mm]

6.5x6.4 (t=1)

common standard

aec-q100 (automotive grade)

特点:

  • nano pulse control™
  • aec-q100 qualified (grade 1)
  • minimum on pulse 50 ns (max)
  • synchronous buck dc/dc converter integrating power mosfets
  • soft start function
  • current mode control
  • reset function
  • quiescent current 10 µa (typ) with 12 v input to 5.0 v output
  • light load mode (llm)
  • forced pulse wide modulation (pwm) mode
  • phase compensation included
  • selectable spread spectrum switching
  • external synchronization function
  • selectable over current protection (ocp)
  • input under voltage lockout (uvlo) protection
  • thermal shut down (tsd) protection
  • output over voltage protection

reference design / application evaluation kit

 
    • evaluation board - bd9p1x5efv-tsb-001
    • this evaluation board was developed for rohm’s single 2.2mhz buck dc/dc converter bd9p1x5efv-c. bd9p1x5efv-c series are current mode synchronous buck dc/dc converter integrating power mosfets. the bd9p1x5efv-c series accepts a power supply input range of 3.5v to 40v and generates a maximum output current of 1a.

  • user guide
    • 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
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