BD39040MUF-C
System Power Good + Watchdog Timer + Reset for Automotive
BD39040MUF-C
System Power Good + Watchdog Timer + Reset for Automotive
BD39040MUF-C is a supervisor IC with quad power good, Watchdog timer and reset. This IC enables existing system to improve its ASIL level easily. The BD39040MUF-C includes built-in self-test (BIST).
8-channel power tree Reference Design
For automotive ADAS and Info-Display
Product Detail
Functional Safety:
Specifications:
Over Voltage Detection Voltage [V] (typ.)
0.88
Under Voltage Detection Voltage [V] (typ.)
0.72
VDET Precision [%]
±3.0
Output Types
Open drain
Reset Delay Timer
10ms
Reset Active State
Low
Manual Reset
No
Watchdog Timer
Yes
SENSE Pin
No
Auto Motive
Yes
Circuit Current (ON) [µA]
785
WDT Active Voltage Range [V]
2.7 to 5.5
Operating Temperature (Min.)[°C]
-40
Operating Temperature (Max.)[°C]
125
Package Size
3.0x3.0 (t=1.0)
Common Standard
AEC-Q100 (Automotive Grade)
Features:
- AEC-Q100 Qualified(Grade 1)
- Quad Power Good for External Inputs
- Over Voltage Detection (OVD)
- Under Voltage Detection (UVD)
- Adjustable Window Watchdog Timer(WDT)
- Reset for VDD Input (POR)
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
