Power Management LSI Series for Automotive Body Control

Description

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）

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.)

BD3004HFP属于集成电路（IC） > 线性 + 开关稳压器。罗姆半导体集团制造生产的BD3004HFP稳压器 - 线性线性稳压器用于提供稳定的输出电压，无论负载电流、输入电压或环境因素如何变化，这些输出电压通常都要保持不变。它们的工作原理要求输入电压维持在高于所需的输出电压，而且要超出某个最小量，并且在工作时会将输入端的任何多余电压转换为热量。对于大多数应用而言，虽然这种稳压器的效率低于开关模式的稳压器，但它们通常更适合对噪声高度敏感的应用。