INA4180AIPWR - 26V Quad Current-Sense Amplifier | TI
MPN: INA4180AIPWR β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $0.67 | $0.67 |
| 10 | $0.6 | $6.00 |
| 100 | $0.55 | $55.00 |
| 500 | $0.52 | $260.00 |
| 1,000 | $0.5 | $500.00 |
| 3,000 | $0.48 | $1,440.00 |
Drop-in alternatives for INA4180AIPWR β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
INA4180A2IPWR
β Drop-Inπ Reference alternative (not in catalog)
INA4180A3IPWR
β Drop-Inπ Reference alternative (not in catalog)
INA4180A4IPWR
β Drop-Inπ Reference alternative (not in catalog)
INA4180A1QPWRQ1
β Drop-Inπ Reference alternative (not in catalog)
INA4180A2QPWRQ1
β Drop-Inπ Reference alternative (not in catalog)
INA4180AIPWR Maximum Ratings & Electrical Characteristics
| Part Series | INAx180 family (INA180, INA2180, INA4180) |
| Product Type | Current-sense amplifier / current-shunt monitor |
| Number of Channels | 4 |
| Output Type | Voltage output, rail-to-rail |
| Package | 14-TSSOP (PW) |
| Common-Mode Voltage Range | -0.2 V to +26 V |
| Bandwidth | 350 kHz |
| Sensing Topology | Low-side and high-side |
| Gain Option | 20 V/V (A1) |
| Operating Temperature Range | [DATA_NEEDED: Operating temperature range] |
| Automotive Grade Option | Yes, Q1 variants AEC-Q100 (e.g. INA4180A2QPWRQ1) |
| Supported Applications | Industrial and automotive systems |
| Mounting Type | Surface Mount |
| Pin Count | 14 |
| Datasheet Page Count | 40 pages |
| RoHS Status | unknown |
INA4180AIPWR Pin Configuration
| Pin 1 | OUT1 β Amplifier 1 voltage output |
| Pin 2 | GND β Ground |
| Pin 3 | IN+1 β Amplifier 1 positive sense input |
| Pin 4 | IN-1 β Amplifier 1 negative sense input |
| Pin 5 | IN-2 β Amplifier 2 negative sense input |
| Pin 6 | IN+2 β Amplifier 2 positive sense input |
| Pin 7 | VS β Power supply input |
| Pin 8 | OUT2 β Amplifier 2 voltage output |
| Pin 9 | OUT3 β Amplifier 3 voltage output |
| Pin 10 | IN+3 β Amplifier 3 positive sense input |
| Pin 11 | IN-3 β Amplifier 3 negative sense input |
| Pin 12 | IN-4 β Amplifier 4 negative sense input |
| Pin 13 | IN+4 β Amplifier 4 positive sense input |
| Pin 14 | OUT4 β Amplifier 4 voltage output |
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this component. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
INA4180AIPWR is suitable for 6 applications: Industrial Motor Control, DC-DC Converter Load Sensing, Battery Charging Current Monitoring, Telecom and Networking Power Monitoring, LED Lighting Load Sensing, Automotive Electronic Load Detection.
Industrial Motor Control
The INA4180AIPWR monitors each motor phase or DC bus current with four independent 20 V/V gain amplifiers in a 14-TSSOP, enabling compact multichannel sensing. Its -0.2V to +26V common-mode range covers 24V industrial rails, and the 350kHz bandwidth captures load steps without aliasing. Place a 0.1uF supply bypass and input RC filters near the shunt. Pair with INA226AIDGSR for digital reporting or LM5117MHX/NOPB as the front-end converter controller when current-loop feedback is needed.
Recommended
DC-DC Converter Load Sensing
The INA4180AIPWR provides high-side or low-side output current monitoring for DC-DC converters; its common-mode range works even when VS is lower than the rail. In a TPS54302DDCR 5V buck design, connect the shunt in series with the output and use the rail-to-rail output to feed the ADC or comparator. The 350kHz bandwidth is adequate for loop transients, while four channels allow simultaneous monitoring of multiple rails. INA226AIDGSR can be used if I2C telemetry is preferred.
Recommended
Battery Charging Current Monitoring
Battery charging systems need accurate charge and discharge current sensing. INA4180AIPWR's four channels can monitor pack current, adapter current, and system load simultaneously with a 26V common-mode range, which suits 2- to 6-cell Li-ion packs. The 20 V/V gain converts small shunt voltages into usable signals for charger controllers. Pair with BQ24610RGER or BQ25601RTWR as the charger IC in the same power path, and use low-value shunt resistors to minimize insertion loss.
Recommended
Telecom and Networking Power Monitoring
In networking switches and base stations, INA4180AIPWR tracks 12V or 24V board rails with four independent channels. The rail-to-rail output connects directly to monitoring ADCs, and the 350kHz bandwidth catches burst transients from packet processing loads. Use INA226AIDGSR when I2C bus monitoring is required, and TPS7A4700RGWR to generate a low-noise analog supply for the sense amplifier if noise-sensitive measurements are needed.
Recommended
LED Lighting Load Sensing
LED lighting drivers require constant-current control and open/short detection. The INA4180AIPWR senses string current with high-side shunts, and its -0.2V to +26V common-mode range accommodates typical LED bus voltages. Four channels can monitor RGBW strings with a single IC. The 350kHz bandwidth enables fast fault response. For a constant-current stage, pair with LM5117MHX/NOPB as the buck LED driver controller; for digital current/voltage telemetry, INA226AIDGSR is a complementary monitor.
Recommended
Automotive Electronic Load Detection
For automotive body electronics and ADAS auxiliary loads, INA4180A1QPWRQ1 or INA4180A2QPWRQ1 provide AEC-Q100 qualification, but the standard INA4180AIPWR can be used in initial bench validation. Its 26V common-mode range covers 12V battery plus transients (within limit) and cranking voltage. Four channels monitor seat motors, fans, and lighting loads in one TSSOP. Use TPS7A1601DGNR low-quiescent LDO to power the amplifier in always-on automotive modules.
Recommended
Recommended Products Summary
Engineering reference data for INA4180AIPWR β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | INA4180A2IPWR | INA4180A3IPWR | INA4180A4IPWR | INA4180A1QPWRQ1 | INA4180A2QPWRQ1 |
|---|---|---|---|---|---|---|
| Package | 14-TSSOP (PW) | 14-TSSOP (PW) | 14-TSSOP (PW) | 14-TSSOP (PW) | 14-TSSOP (PW) | 14-TSSOP (PW) |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Number of Amplifiers | 4 | 4 | 4 | 4 | 4 | 4 |
| Gain | 20 V/V (A1) | 50 V/V (A2) | 100 V/V (A3) | 200 V/V (A4) | 20 V/V (A1) | 50 V/V (A2) |
| Common-Mode Voltage Range | -0.2 V to +26 V | -0.2 V to +26 V | -0.2 V to +26 V | -0.2 V to +26 V | -0.2 V to +26 V | -0.2 V to +26 V |
| Bandwidth | 350 kHz | 350 kHz | 350 kHz | 350 kHz | 350 kHz | 350 kHz |
| Automotive Qualification (AEC-Q100) | No | No | No | No | Yes | Yes |
| Output Type | Rail-to-rail voltage output | Rail-to-rail voltage output | Rail-to-rail voltage output | Rail-to-rail voltage output | Rail-to-rail voltage output | Rail-to-rail voltage output |
Key Differentiators
- Four independent current-sense channels in 14-TSSOP (vs INA180)
- Cost-optimized analog output architecture (vs INA226AIDGSR)
- AEC-Q100 qualified Q1 variants (vs INA4180AIPWR standard grade)
Design Notes
Do not exceed the -0.2V to +26V common-mode range. In automotive or industrial transient environments, add external clamping diodes or an input resistor network to prevent damage. Because the common-mode range is independent of VS, a low supply does not protect the inputs from overvoltage on the shunt terminals.
Use a Kelvin (4-wire) connection from the shunt resistor to IN+ and IN- to avoid parasitic resistance errors. Keep the shunt sense traces short and symmetric, place a 10 ohm input filter resistor close to each amplifier input, and place a 0.1uF supply bypass capacitor very close to VS and GND pins.
The 350kHz bandwidth can amplify noise on long sense traces. Add an RC low-pass filter on the output if the ADC or controller requires a lower noise floor. For cost-sensitive designs, remember the gain is fixed and trimmed by the internal matched resistor network, so no external gain-setting resistors are required.
Compliance Information
Compliance data not explicitly present in verified web snippets. AEC-Q100 qualified Q1 variants are available for automotive-grade designs.
