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车载用 系统power good 看门狗定时器 复位
bd39042muf-c
bd39042muf-c是一款具有4路power good信号、看门狗定时器和复位功能的监控ic。使用该ic可以轻松提高现有系统的asil等级。bd39042muf-c还具有内建自测试（bist）功能。
主要规格
功能安全:
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：
over voltage detection voltage [v] (typ.)
0.848
under voltage detection voltage [v] (typ.)
0.752
vdet precision [%]
±1.4
output types
open drain
reset delay timer
10ms
reset active state
low
manual reset
no
watchdog timer
yes
auto motive
yes
circuit current (on) [µa]
810
wdt active voltage range [v]
2.7 to 5.5
operating temperature (min.)[°c]
-40
operating temperature (max.)[°c]
125
package size
3x3 (t=1)
common standard
aec-q100 (automotive grade)
特点：
- aec-q100 qualified (grade 1)
- functional safety supportive automotive products
- quad power good for external inputs
- over voltage detection (ovd)
- under voltage detection (uvd)
- adjustable window watchdog timer (wdt)
- reset for vdd input (por)
- built-in self-test (bist)
