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DRV401-Q1 Sensor Signal Conditioning Device for Closed-Loop Magnetic Current Sensor
SBOS814
December 2016
DRV401-Q1
PRODUCTION DATA.
CONTENTS
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DRV401-Q1 Sensor Signal Conditioning Device for Closed-Loop Magnetic Current Sensor
1
Features
2
Applications
3
Description
4
Revision History
5
Pin Configuration and Functions
6
Specifications
6.1
Absolute Maximum Ratings
6.2
ESD Ratings
6.3
Recommended Operating Conditions
6.4
Thermal Information
6.5
Electrical Characteristics
6.6
Typical Characteristics
7
Detailed Description
7.1
Overview
7.2
Functional Block Diagram
7.3
Feature Description
7.3.1
Magnetic Probe (Sensor) Interface
7.3.2
PWM Processing
7.3.3
Compensation Driver
7.3.4
External Compensation Coil Driver
7.3.5
Shunt Sense Amplifier
7.3.6
Over-Range Comparator
7.3.7
Voltage Reference
7.3.8
Demagnetization
7.3.9
Power-On and Brownout
7.3.10
Error Conditions
7.3.11
Protection Recommendations
7.4
Device Functional Modes
8
Application and Implementation
8.1
Application Information
8.1.1
Functional Principle of Closed-Loop Current Sensors with Magnetic Probe Using the DRV401-Q1 Device
8.1.2
Basic Connection
8.2
Typical Application
8.2.1
Design Requirements
8.2.2
Detailed Design Procedure
8.2.3
Application Curves
9
Power Supply Recommendations
10
Layout
10.1
Layout Guidelines
10.2
Layout Example
10.3
Power Dissipation
11
Device and Documentation Support
11.1
Device Support
11.1.1
Development Support
11.1.1.1
TINA-TI (Free Software Download)
11.1.1.2
TI Precision Designs
11.1.1.3
WEBENCH® Filter Designer
11.2
Documentation Support
11.2.1
Related Documentation
11.3
Receiving Notification of Documentation Updates
11.4
Community Resources
11.5
Trademarks
11.6
Electrostatic Discharge Caution
11.7
Glossary
12
Mechanical, Packaging, and Orderable Information
12.1
Thermal Pad
IMPORTANT NOTICE
Package Options
Mechanical Data (Package|Pins)
RGW|20
MPQF122C
Thermal pad, mechanical data (Package|Pins)
RGW|20
QFND012L
Orderable Information
sbos814_oa
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