DRV401-EP Datasheet, PDF (1/33 Pages) Texas Instruments – SENSOR SIGNAL CONDITIONING IC FOR CLOSED-LOOP MAGNETIC CURRENT SENSOR

DRV401-EP
www.ti.com............................................................................................................................................................................................... SBVS104 – JANUARY 2008
SENSOR SIGNAL CONDITIONING IC FOR
CLOSED-LOOP MAGNETIC CURRENT SENSOR
FEATURES
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•23 Designed For Sensors From
VACUUMSCHMELZE (VAC)
• Single Supply: 5 V
• Power Output: H-Bridge
• Designed For Driving Inductive Loads
• Excellent DC Precision
• Wide System Bandwidth
• High-Resolution, Low-Temperature Drift
• Built-In Degauss System
• Extensive Fault Detection
• External High-Power Driver Option
SUPPORTS DEFENSE, AEROSPACE,
AND MEDICAL APPLICATIONS
• Controlled Baseline
• One Assembly/Test Site
• One Fabrication Site
• Available in Military (–55°C/125°C)
Temperature Range⁽¹⁾
• Extended Product Life Cycle
• Extended Product-Change Notification
• Product Traceability
APPLICATIONS
• Generator/Alternator Monitoring and Control
• Frequency and Voltage Inverters
• Motor Drive Controllers
• System Power Consumption
• Photovoltaic Systems
(1) Custom temperature ranges available
DESCRIPTION/ORDERING INFORMATION
The DRV401 is designed to control and process signals from specific magnetic current sensors made by
VACUUMSCHMELZE GmbH & Co. KG (VAC). A variety of current ranges and mechanical configurations are
available. Combined with a VAC sensor, the DRV401 monitors both ac and dc currents to high accuracy.
Provided functions include: probe excitation, signal conditioning of the probe signal, signal loop amplifier, an
H-bridge driver for the compensation coil, and an analog signal output stage that provides an output voltage
proportional to the primary current. It offers overload and fault detection, as well as transient noise suppression.
The DRV401 can directly drive the compensation coil or connect to external power drivers. Therefore, the
DRV401 combines with sensors to measure small to very large currents.
To maintain the highest accuracy, the DRV401 can demagnetize (degauss) the sensor at power-up and on
demand.
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Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PowerPAD is a trademark of Texas Instruments.
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All other trademarks are the property of their respective owners.
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PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2008, Texas Instruments Incorporated