AGV8011 Open Loop Pre-Driver

Applications

Data Servers, PCs
Industrial Fans, Blowers

Datasheet
Product Brief

Features

Variable speed control of 4-wire fans
Separate tach and alarm pins
Current limit & rotor lock protection
Both PWM & voltage control inputs
Integrated Hall amplifier and voltage bias
Available in a 14 lead SOIC RoHS compliant package

Description

Variable speed is adjusted by varying the duty cycle to the PWM control input pin. The analog control pin can be used to interface with a thermistor when the PWM input control is not needed. Rotor speed is reported on TACH. Rotor lock is reported on a separate ALARM pin. Current limit and thermal protections are also provided. The 40V MOS output predrivers can source or sink 100mA.

Open Loop Product Comparison

The AGV8010 series of open loop single phase pre-drivers offer a variety of feature combinations to meet different application needs. Product differences are summarized below.