SBOS393E March   2007  – November 2015 INA203 , INA204 , INA205

PRODUCTION DATA.  

  1. Features
  2. Applications
  3. Description
  4. Revision History
  5. Device Comparison
  6. Pin Configuration and Functions
  7. Specifications
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 ESD Ratings
    3. 7.3 Recommended Operating Conditions
    4. 7.4 Thermal Information
    5. 7.5 Electrical Characteristics: Current-Shunt Monitor
    6. 7.6 Electrical Characteristics: Comparator
    7. 7.7 Electrical Characteristics: Reference
    8. 7.8 Electrical Characteristics: General
    9. 7.9 Typical Characteristics
  8. Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagrams
    3. 8.3 Feature Description
      1. 8.3.1 Basic Connections
      2. 8.3.2 Selecting RSHUNT
      3. 8.3.3 Comparator
      4. 8.3.4 Comparator Delay (14-Pin Version Only)
      5. 8.3.5 Comparator Maximum Input Voltage Range
    4. 8.4 Device Functional Modes
      1. 8.4.1 Input Filtering
      2. 8.4.2 Accuracy Variations as a Result Of VSENSE and Common-Mode Voltage
        1. 8.4.2.1 Normal Case 1: VSENSE ≥ 20 mV, VCM ≥ VS
        2. 8.4.2.2 Normal Case 2: VSENSE ≥ 20 mV, VCM < VS
        3. 8.4.2.3 Low VSENSE Case 1
        4. 8.4.2.4 Low VSENSE Case 2: VSENSE < 20 mV, 0 V ≤ VCM ≤ VS
      3. 8.4.3 Transient Protection
      4. 8.4.4 Output Voltage Range
      5. 8.4.5 Reference
  9. Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
      3. 9.2.3 Application Curves
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Related Links
    2. 12.2 Community Resources
    3. 12.3 Trademarks
    4. 12.4 Electrostatic Discharge Caution
    5. 12.5 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

Package Options

Refer to the PDF data sheet for device specific package drawings

Mechanical Data (Package|Pins)
  • D|14
  • DGS|10
  • PW|14
Thermal pad, mechanical data (Package|Pins)
Orderable Information

1 Features

  • Complete Current Sense Solution
  • Three Gain Options Available:
    • INA203 = 20 V/V
    • INA204 = 50 V/V
    • INA205 = 100 V/V
  • Dual Comparators:
    • Comparator 1 With Latch
    • Comparator 2 With Optional Delay
  • Common-Mode Range: –16 V to 80 V
  • High Accuracy: 3.5% (Maximum) Over Temperature
  • Bandwidth: 500 kHz
  • Quiescent Current: 1.8 mA
  • Packages: SO-14, TSSOP-14, VSSOP-10

2 Applications

  • Notebook Computers
  • Cell Phones
  • Telecom Equipment
  • Automotive
  • Power Management
  • Battery Chargers
  • Welding Equipment
  • SPACE

3 Description

The INA203, INA204, and INA205 are a family of unidirectional current-shunt monitors with voltage output, dual comparators, and voltage reference. The INA203, INA204, and INA205 can sense drops across shunts at common-mode voltages from –16 V to 80 V. The INA203, INA204, and INA205 are available with three output voltage scales: 20 V/V, 50 V/V, and 100 V/V, with up to 500-kHz bandwidth.

The INA203, INA204, and INA205 also incorporate two open-drain comparators with internal 0.6-V references. On 14-pin versions, the comparator references can be overridden by external inputs. Comparator 1 includes a latching capability, and Comparator 2 has a user-programmable delay. 14-pin versions also provide a 1.2-V reference output.

The INA203, INA204, and INA205 operate from a single 2.7-V to 18-V supply. They are specified over the extended operating temperature range of –40°C to 125°C.

Device Information (1)

PART NUMBER PACKAGE BODY SIZE (NOM)
INA203,
INA204,
INA205
SOIC (14) 8.65 mm × 3.91 mm
VSSOP (10) 3.00 mm × 3.00 mm
TSSOP (14) 5.00 mm × 4.40 mm
  1. For all available packages, see the orderable addendum at the end of the data sheet.
  2. SPACE

Simplified Schematic

INA203 INA204 INA205 front_so_tssop_bos393.gif