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TMCS1126-Q1 AEC-Q100, Precision 500kHz Hall-Effect Current Sensor With Reinforced Working Voltage, Overcurrent Detection and Ambient Field Rejection
SBOSAF5A
April 2024 – November 2024
TMCS1126-Q1
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TMCS1126-Q1 AEC-Q100, Precision 500kHz Hall-Effect Current Sensor With Reinforced Working Voltage, Overcurrent Detection and Ambient Field Rejection
1
1
Features
2
Applications
3
Description
4
Device Comparison
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
Insulation Specifications
6.6
Electrical Characteristics
6.7
Typical Characteristics
7
Parameter Measurement Information
7.1
Accuracy Parameters
7.1.1
Sensitivity Error
7.1.2
Offset Error and Offset Error Drift
7.1.3
Nonlinearity Error
7.1.4
Power Supply Rejection Ratio
7.1.5
Common-Mode Rejection Ratio
7.1.6
External Magnetic Field Errors
7.2
Transient Response Parameters
7.2.1
CMTI, Common-Mode Transient Immunity
7.3
Safe Operating Area
7.3.1
Continuous DC or Sinusoidal AC Current
7.3.2
Repetitive Pulsed Current SOA
7.3.3
Single Event Current Capability
8
Detailed Description
8.1
Overview
8.2
Functional Block Diagram
8.3
Feature Description
8.3.1
Current Input
8.3.2
Ambient Field Rejection
8.3.3
High-Precision Signal Chain
8.3.3.1
Temperature Stability
8.3.3.2
Lifetime and Environmental Stability
8.3.4
Internal Reference Voltage
8.3.5
Current-Sensing Measurable Ranges
8.3.6
Overcurrent Detection
8.3.6.1
Setting The User Configurable Overcurrent Threshold
8.3.6.1.1
Setting Overcurrent Threshold Using Power Supply Voltage
8.3.6.1.2
Setting Overcurrent Threshold Using Internal Reference Voltage
8.3.6.1.3
Setting Overcurrent Threshold Example
8.3.6.2
Overcurrent Output Response
8.4
Device Functional Modes
8.4.1
Power-Down Behavior
9
Application and Implementation
9.1
Application Information
9.1.1
Total Error Calculation Examples
9.1.1.1
Room-Temperature Error Calculations
9.1.1.2
Full-Temperature Range Error Calculations
9.2
Typical Application
9.2.1
Design Requirements
9.2.2
Detailed Design Procedure
9.2.3
Application Curve
9.3
Power Supply Recommendations
9.4
Layout
9.4.1
Layout Guidelines
9.4.2
Layout Example
10
Device and Documentation Support
10.1
Device Nomenclature
10.2
Device Support
10.2.1
Development Support
10.3
Documentation Support
10.3.1
Related Documentation
10.4
Receiving Notification of Documentation Updates
10.5
Support Resources
10.6
Trademarks
10.7
Electrostatic Discharge Caution
10.8
Glossary
11
Revision History
12
Mechanical, Packaging, and Orderable Information
IMPORTANT NOTICE
Package Options
Mechanical Data (Package|Pins)
DVG|10
MPSS146B
Thermal pad, mechanical data (Package|Pins)
Orderable Information
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sbosaf5a_pm
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Data Sheet
TMCS1126-Q1
AEC-Q100,
Precision
500kHz
Hall-Effect Current Sensor With Reinforced Working Voltage
, Overcurrent Detection
and Ambient Field Rejection
1
Features
AEC-Q100 qualified for automotive applications
Temperature grade 1: –40°C to 125°C, T
A
Functional Safety-Capable
Documentation available to aid functional safety system design
High continuous current capability:
80A
RMS
Robust reinforced isolation
High accuracy
Sensitivity error:
±0.1%
Sensitivity thermal drift:
±20ppm/°C
Sensitivity lifetime drift: ±0.2%
Offset error:
±0.2mV
Offset thermal drift:
±2μV/°C
Offset lifetime drift:
±0.2mV
Non-linearity:
±0.1%
High immunity to external magnetic fields
Precision zero-current reference output
Fast Response
Signal bandwidth:
500kHz
Response time:
250ns
Propagation delay:
60ns
Overcurrent detection response: 100ns
Operating supply range: 3V to 5.5V
Bidirectional and unidirectional current sensing
Multiple sensitivity options:
Ranging from 15mV/A to 150mV/A
Safety related certifications (planned)
UL 1577 Component Recognition Program
IEC/CB 62368-1
2
Applications
Onboard charger
DC/DC converter
Rotor excitation
HVAC compressor
High-voltage PDU
EV charging