BD87B28FVM-C
Voltage Detector ICs with Watchdog Timer for Automotive
BD87B28FVM-C
Voltage Detector ICs with Watchdog Timer for Automotive
BD87B28FVM-C integrate a Reset (RESET) that monitors the input voltage of the microcomputer and a Watchdog Timer (WDT) that monitors the clock signal of the microcomputer. Even with its wide input voltage up to 20V the quiescent current is kept low, making it possible to improve redundancy of various system with low current consumption. The RESET detection voltage can be selected either from fixed type or from variable type just by adjusting the external resister. Also, the RESET delay time and Watchdog monitor time can be adjusted by the external capacitor.
主要规格
功能安全:
特性：
Under Voltage Detection Voltage [V] (typ.)
2.8
VDET Precision [%]
±2.0
Reset Active Voltage Range [V]
2 to 20
Output Types
Open drain
Reset Active State
Low
Manual Reset
No
Watchdog Timer
Yes
SENSE Pin
No
Auto Motive
Yes
Circuit Current (ON) [µA]
4.5
Circuit Current (OFF) [µA]
3
Hysteresis Voltage [V]
VDET×0.036
WDT Active Voltage Range [V]
VDET+VRHY to 20
Operating Temperature (Min.)[°C]
-40
Operating Temperature (Max.)[°C]
125
Package Size
4.0x2.9 (t=0.9)
Common Standard
AEC-Q100 (Automotive Grade)
特点：
- AEC-Q100 Qualified (Grade 1)
- Functional Safety Supportive Automotive Products
- Qualified for Automotive Applications
- Integrated Power ON and Under-Voltage Detection Reset
- Integrated Watchdog Timer
- Adjustable Reset Delay Time and Watchdog Monitor Time by External Capacitor
