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INA30x-Q1 AEC-Q100, 36-V, Bidirectional, 550-kHz, 4V/µs, High-Precision Current Sense Amplifier With Dual Window Comparator
SBOS977A
March 2019 – May 2021
INA302-Q1
,
INA303-Q1
PRODUCTION DATA
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INA30x-Q1 AEC-Q100, 36-V, Bidirectional, 550-kHz, 4V/µs, High-Precision Current Sense Amplifier With Dual Window Comparator
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
Bidirectional Current Sensing
7.3.2
Out-of-Range Detection
7.3.3
Alert Outputs
7.3.3.1
Setting Alert Thresholds
7.3.3.1.1
Resistor-Controlled Current Limit
7.3.3.1.1.1
Resistor-Controlled Current Limit: Example
7.3.3.1.2
Voltage-Source-Controlled Current Limit
7.3.3.2
Hysteresis
7.4
Device Functional Modes
7.4.1
Alert Operating Modes
7.4.1.1
Transparent Output Mode
7.4.1.2
Latch Output Mode
8
Application and Implementation
8.1
Application Information
8.1.1
Selecting a Current-Sensing Resistor (RSENSE)
8.1.1.1
Selecting a Current-Sensing Resistor: Example
8.1.2
Input Filtering
8.1.3
Using the INA30x-Q1 With Common-Mode Transients Greater Than 36 V
8.2
Typical Application
8.2.1
Design Requirements
8.2.2
Detailed Design Procedure
8.2.3
Application Curve
9
Power Supply Recommendations
10
Layout
10.1
Layout Guidelines
10.2
Layout Example
11
Device and Documentation Support
11.1
Documentation Support
11.1.1
Related Documentation
11.2
Receiving Notification of Documentation Updates
11.3
Support Resources
11.4
Related Links
11.5
Trademarks
11.6
Electrostatic Discharge Caution
11.7
Glossary
12
Mechanical, Packaging, and Orderable Information
IMPORTANT NOTICE
Package Options
Mechanical Data (Package|Pins)
PW|14
MPDS360A
Thermal pad, mechanical data (Package|Pins)
Orderable Information
sbos977a_oa
sbos977a_pm
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DATA SHEET
INA30x-Q1 AEC-Q100, 36-V, Bidirectional, 550-kHz, 4V/µs, High-Precision Current Sense Amplifier With Dual Window Comparator
1
Features
AEC-Q100 qualified for automotive applications
Temperature grade 1: –40°C ≤ T
A
≤ +125°C
HBM ESD classification level 2
CDM ESD classification level C6
Functional Safety-Capable
Documentation available to aid functional safety system design
Wide common-mode input range: –0.1 V to +36 V
Dual comparator outputs:
INA302
-Q1
: Two independent overlimit alerts
INA303
-Q1
: Window comparator
Threshold levels set individually
Comparator 1 alert response: 1 µs
Comparator 2 adjustable delay: 2 µs to 10 s
Open-drain outputs with independent latch control modes
High accuracy amplifier:
Offset voltage: 30 µV (max, A3 version)
Offset voltage drift: 0.5 µV/°C (max)
Gain error: 0.15% (max, A3 version)
Gain error drift: 10 ppm/°C
Available amplifier gains:
INA302A1
-Q1
, INA303A1
-Q1
: 20 V/V
INA302A2
-Q1
, INA303A2
-Q1
: 50 V/V
INA302A3
-Q1
, INA303A3
-Q1
: 100 V/V
2
Applications
System fault detection
Motor control and protection
Pump control and protection
DC/DC converters
Body control module