稳压器与看门狗定时器复位 Voltage Regulator with Watchdog Timer Reset
Power Management LSI Series for Automotive Body Control
Description
The BD3004HFP, low bias current regulator and watchdog timer features a high 50 V breakdown voltage and is compatible with on-board vehicle microcontrollers. It offers an output current of 500 mA while limiting bias current to 80 µA Typ.. The series supports the use of ceramic capacitors as output phase compensation capacitors.The reset detection voltage can be changed by connecting a resistor to the Vs pin.（ BD3004HFP） The watchdog timer can be switched on and off using the INH pin input logic.（ BD3005HFP）
Features
1 5 V/500 mA regulators for microcontrollers
BD3004HFP: Adjustable detection voltage Vs pin
BD3005HFP:Built-in watchdog timer reset circuit INH pin: watchdog timer on/off
2 Super-low bias current: 80 µA Typ.
3 Low-saturation voltage type P-channel DMOS output transistors
4 High precision output voltage: 5 V ±2%
5 Low-ESR ceramic capacitors can be used as output capacitors
6 Vcc Maximum applied voltage: 50 V
7 Built-in overcurrent protection circuit and thermal shutdown circuit
8 Built-in reverse connection breakdown prevention circuit
9 Back current flow protection during sudden battery failures, making it a highly reliable 5 V regulator.
10 HRP7 package
Applications
Onboard devices Vehicle equipment, Car stereos, Satellite navigation systems, etc.