描述 Description

The MAX6330/MAX6331 combine a precision shunt regulator with a power-on reset function in a single SOT23-3 package. They offer a low-cost method of operating small microprocessor (μP)-based systems from high-voltage sources, while simultaneously protecting μPs from power-up, power-down, and brownout conditions.
Both active-low (MAX6330) and active-high (MAX6331) push/pull output versions are available. The output voltage has ±1.5% tolerance. The MAX6330/MAX6331 operate over a wide shunt current range from 100μA to 50mA, and offer very good transient immunity.
A 3-pin SOT23 package allows for a significant reduction in board space and improves reliability compared to multiple-IC/discrete solutions. These devices have a minimum order increment of 2,500 pieces.

特性 Features

? 100μA to 50mA Shunt Current Range
? Low Cost
? 3-Pin SOT23 Package
? ±1.5% Tolerance on Output Voltage
? Three Shunt Voltages Available: 5V, 3.3V, 3.0V
? Precision Power-On Reset Threshold:
? 1.5% Tolerance Available with Either
? RESET (MAX6331) or active-low RESET (MAX6330) Outputs
? 140ms Reset Timeout Period-No External Components Required

應(yīng)用 Application

? 控制器
? 精確的μP與μC電源監(jiān)控
? 家電產(chǎn)品
? 智能儀表
? 便攜式/尺寸敏感設(shè)備

簡介

MAX6331屬于集成電路（IC）的電壓基準(zhǔn)。由制造生產(chǎn)的MAX6331電壓基準(zhǔn)產(chǎn)品屬于基準(zhǔn)電壓源系列，可通過相對較不穩(wěn)定的電源提供穩(wěn)定的電勢，電壓值始終保持恒定，以便在測量、控制和類似應(yīng)用中用作比較的標(biāo)準(zhǔn)。其功能行為可能與用于大功率調(diào)節(jié)的線性穩(wěn)壓器相似，但基準(zhǔn)電壓源器件卻不適合用于此類用途。用作比較標(biāo)準(zhǔn)時(shí)，若輸出電流容量或?qū)嶋H負(fù)載電流增大，其性能通常會降低。