MAX6331

Features:

100A 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 RESET (MAX6330) Outputs 140ms Reset Timeout Period-No External Components Required


Application

Controllers Household Appliances Intelligent Instruments Critical P and C Power Monitoring Portable/Size-Sensitive Equipment Automotive


Pinout




Specifications

Terminal Voltage (with respect to GND),
All Pins Except SHUNT...............................-0.3V to (VSHUNT + 0.3V)
Input Current (ISHUNT)...........................................................60mA
Output Current (RESET/RESET)................................................20mA
Short-Circuit Duration.....................................................Continuous
Continuous Power Dissipation
SOT23-3 (derate 4mW/°C above +70°C)...........................320mW
Operating Temperature Range .............................-40°C to +85°C
Storage Temperature Range...............................-65°C to +160°C
Lead Temperature (soldering, 10sec).................................+300°C


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 (P)-based systems from high-voltage sources, while simultaneously pro- tecting Ps 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 100A to 50mA, and offer very good transient immunity. A 3-pin SOT23 package allows for a significant reduc- tion in board space and improves reliability compared to multiple-IC/discrete solutions. These devices have a minimum order increment of 2,500 pieces.