INA203-Q1
- Qualified for Automotive Applications
- Current Sense Amplifier
- Common-Mode Range: –16 V to +80 V
- Accuracy: 3.5% (Maximum) Over Temperature
- Bandwidth: 500 kHz
- Gain: 20 V/V
- Integrated Dual Comparators:
- Comparator 1 With Latch
- Comparator 2 With Optional Delay
- Quiescent Current: 1.8 mA
- Latch-Up Performance Meets 100 mA Per AEC-
Q100, Level I - Packages: TSSOP-14
- APPLICATIONS
- Electric Power Steering (EPS) Systems
- Body Control Modules
- Brake Systems
- Electronic Stability Control (ESC) Systems
All other trademarks are the property of their respective owners
The INA203-Q1 is a unidirectional current-shunt monitor (also called a current sense amplifier) with voltage output, dual comparators, and voltage reference. The INA203-Q1 can sense drops across shunts at common-mode voltages from –16 V to +80 V. The INA203-Q1 is available with 20-V/V gain with up to 500-kHz bandwidth.
The INA203-Q1 incorporates two open-drain comparators with internal 0.6-V references and also provides a 1.2-V reference output. The comparator references can be overridden by external inputs. Comparator 1 includes a latching capability, and Comparator 2 has a user-programmable delay.
The INA203-Q1 operates from a single 2.7 V to 18 V supply. It is specified over the extended operating temperature range of –40°C to +125°C.
Technical documentation
Type | Title | Date | ||
---|---|---|---|---|
* | Data sheet | INA203-Q1 Automotive Grade, –16 V to +80 V, Low- or High-Side, High-Speed, Voltage Output Current Shunt Monitor With Dual Comparators and Reference datasheet (Rev. A) | PDF | HTML | 28 Apr 2016 |
Application note | Measuring Current To Detect Out-of-Range Conditions (Rev. D) | PDF | HTML | 10 Mar 2022 | |
Application note | Using a PCB Copper Trace as a Current-Sense Shunt Resistor | PDF | HTML | 25 Jan 2022 | |
Application note | Measuring Current for Handle Multiple Out-of-Range Conditions (Rev. C) | PDF | HTML | 04 Oct 2021 | |
Circuit design | Overcurrent event detection circuit | 31 Jul 2018 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.
CIRCUIT060035 — Bidirectional current sensing with a window comparator circuit
CIRCUIT060037 — Precision over-current latch circuit
PSPICE-FOR-TI — PSpice® for TI design and simulation tool
TINA-TI — SPICE-based analog simulation program
TIDA-00302 — Current Shunt Monitor with Transient Robustness Reference Design
Additionally, an external protection circuit is implemented to provide surge and fast-transient protection and demonstrate the different immunity levels to (...)
Package | Pins | Download |
---|---|---|
TSSOP (PW) | 14 | View options |
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