BD4271EFJ-C
具有看门狗定时器复位功能 550mA LDO稳压器
BD4271EFJ-C
BD4271EFJ-C
具有看门狗定时器复位功能 550mA LDO稳压器
BD4271EFJ-C是一款45V高耐压稳压器，内置用来监控其输出的复位（RESET）功能和看门狗定时器（WDT）。输出电流能力为550mA，但暗电流却能够保持在很低水平，适用于进一步降低系统的消耗电流。配有可以使输出ON/OFF的CTL引脚，通过设置为CTL=L可以关闭输出，从而可以进一步降低消耗电流。当稳压器的输出低于4.65V（Typ）时，将会输出复位信号。复位信号的恢复延迟时间和看门狗监控时间可以通过外置电容器进行调整。
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：
ch
1
Withstand Voltage (Max.)[V]
45
Vin(Min.)[V]
5.5
Vin(Max.)[V]
45
Iout(Max.)[A]
0.55
Vout Accuracy
±2.0%
Circuit Current[mA]
0.075
Dropout Voltage (Typ.)[V]
0.2(Io=300mA)
Ripple Rejection [dB]
60
Load Regulation[mV]
10
Shutdown Function
Yes
Thermal Shut-down
Yes
Over Current Protection
Yes
Under Voltage Lock Out
Yes
Discharge Function
Yes
Operating Temperature (Min.)[°C]
-40
Operating Temperature (Max.)[°C]
150
Common Standard
AEC-Q100 (Automotive Grade)
特点：
- AEC-Q100 qualified
- Low ESR ceramic capacitors applicable for output
- Low drop voltage: PDMOS output transistor
- Power on and under-voltage reset
- Programmable reset delay and watchdog time by external capacitor
- Enable input
- Over Current Protection (OCP)
- Thermal Shut Down (TSD)
