SBOS814 December   2016 DRV401-Q1

PRODUCTION DATA.  

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

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

5 Pin Configuration and Functions

RGW Package
20-Pin VQFN With Exposed Thermal Pad
Top View
DRV401-Q1 po_qfn_bos814.gif

Pin Functions

PIN I/O DESCRIPTION
NAME NO.
CCdiag 13 I Control input for wire-break detection: high = enable
DEMAG 2 I Control input; See the Demagnetization section.
ERROR 1 O Error flag: open-drain output. See the Error Conditions section.
GAIN 3 I Control input for open-loop gain: low = normal, high = −8 dB
GND1 17 — Ground connection
GND2 9 — Ground connection. Connect to GND1.
IAIN1 8 I Inverting input of differential amplifier
IAIN2 7 I Noninverting input of differential amplifier
ICOMP1 11 O Output 1 of compensation coil driver
ICOMP2 10 O Output 2 of compensation coil driver
IS1 18 I/O Probe connection 1
IS2 16 I/O Probe connection 2
OVER-RANGE 14 O Open-drain output for overrange indication: low = overrange
PWM 19 O PWM output from probe circuit (inverted)
PWM 20 O PWM output from probe circuit
REFOUT 4 O Output for internal 2.5-V reference voltage
REFIN 5 I Input for zero reference to differential amplifier
Thermal pad — — Exposed thermal pad. Connect to GND1.
VDD1 15 — Supply voltage
VDD2 12 — Supply voltage. Connect to VDD1.
VOUT 6 O Output for differential amplifier