TECHNICAL NOTE
Power Management LSI Series for Automotive Body Control
Regulators with Voltage Detector and Watchdog Ti...
TECHNICAL NOTE
Power Management LSI Series for Automotive Body Control
Regulators with
Voltage Detector and Watchdog Timer
BD3004HFP,BD3005HFP
zDescription The BD3004HFP,BD3005HFP 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)
zFeatures 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
zApplications Onboard devices (Vehicle equipment, Car stereos, Satellite navigation systems, etc.)
zAbsolute maximum ratings (Ta ...