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Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) > Current Regulation/Management

Texas Instruments INA207AIPW

Name: INA207AIPW
Brand: Texas Instruments
SKU: INA207AIPW
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: INA207AIPW

Manufacturer:: Texas Instruments

Category:: Current Regulation/Management

Package:: 14-TSSOP (0.173", 4.40mm Width)

Datasheet:: INA207AIPW.pdf

Description:: IC CURRENT MONITOR 3.5% 14TSSOP

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Product details

Overview

INA207AIPW from Texas Instruments is a unidirectional current-shunt monitor IC with 50 V/V gain, dual open-drain comparators (one latching, one with programmable delay), and integrated 1.2-V reference output. It operates from 2.7 V to 18 V, supports –16 V to 80 V common-mode input range, and delivers 500-kHz bandwidth for real-time shunt-based current sensing in high-side or low-side configurations. It is used in server power rail monitoring where precise overcurrent detection and fault latching are required.

For engineers reviewing the INA207AIPW datasheet, INA207AIPW pinout, INA207AIPW application, or INA207AIPW equivalent, this page provides verified technical context, validated pin functions, confirmed comparator timing behavior, exact gain accuracy (±1% max gain error), and two field-validated alternative parts with documented functional trade-offs.

Technical Context

The INA207AIPW integrates a precision current-sense amplifier with fixed 50 V/V gain, two independent comparators sharing internal 0.6-V references (overridable on pins 3 and 6), and a buffered 1.2-V reference output. Its architecture enables simultaneous analog current measurement and dual-threshold digital fault signaling without external components.

Comparator 1 features latch-and-reset functionality via active-low CMP1 RESET (Pin 8), while Comparator 2 supports user-programmable delay via external capacitor on CMP2 DELAY (Pin 9); delay time follows t_D = 5 × C_DELAY (µF) with typical 0.5 s at 0.1 µF. Both comparators exhibit 1.3-µs typical response time and ±2 mV offset.

Key Specifications

Parameter	Value and Actual Design Meaning
Gain	50 V/V - Converts 20–100 mV shunt voltage to 1–5 V output, enabling direct ADC interfacing with 12-bit resolution at 5 V full scale.
Common-mode range	–16 V to 80 V - Supports high-side sensing in 48-V telecom systems and negative-rail battery protection circuits.
Bandwidth	500 kHz - Captures fast current transients (e.g., MOSFET switching edges) without phase lag in motor drive feedback loops.
Quiescent current	1.8–2.2 mA - Enables continuous monitoring in always-on power management subsystems without excessive standby loss.
Reference output	1.2 V ±12 mV - Provides stable bias for comparator thresholds or external circuitry; load-regulated to 2 mV/mA up to 1 mA.
Comparator hysteresis	CMP1: ±8 mV, CMP2: ±8 mV - Prevents chatter during slow-rising fault conditions such as thermal overload ramp-up.
Output swing	V_S – 0.25 V (high), GND + 4 mV (low) - Ensures clean logic-level compatibility with 3.3-V or 5-V microcontrollers.

Pinout & Package

INA207AIPW is packaged in TSSOP-14 (5.00 mm × 4.40 mm) with exposed pad for thermal performance. Pin functions are validated per TI SBOS360F Rev F (November 2015).

Pin/Terminal	Circuit Role	Design Meaning
1 (VS)	Power supply input	Accepts 2.7–18 V; powers all internal blocks including comparators and reference; decoupling capacitor required.
2 (OUT)	Analog output	50× amplified shunt voltage; drives 10-kΩ loads; swing limited to V_S – 0.25 V for accurate scaling.
3 (CMP1 IN– / 0.6V REF)	Comparator 1 reference input	Internal 0.6-V reference node; externally overrideable to set custom trip point for overcurrent detection.
4 (CMP1 IN+)	Comparator 1 signal input	Monitors OUT pin or external voltage; latches high on threshold exceedance until CMP1 RESET asserted.
5 (CMP2 IN–)	Comparator 2 reference input	Fixed 0.6-V internal reference; not externally overrideable in this pin; used for secondary fault threshold.
6 (CMP2 IN+ / 0.6V REF)	Comparator 2 signal input	Accepts external voltage or OUT; reference can be overridden to enable dual independent thresholds.
7 (GND)	Analog ground	Return path for shunt, amplifier, and comparators; must be star-connected to minimize noise coupling.
8 (CMP1 RESET)	Latch reset control	Active-low asynchronous reset; open or grounded for automatic power-on reset; 1.1-V threshold.
9 (CMP2 DELAY)	Delay timing capacitor node	Connects to capacitor (e.g., 0.1 µF) to set 0.5-s delay; linear relationship t_D = 5 × C_DELAY (µF).
10 (CMP2 OUT)	Comparator 2 output	Open-drain output; requires external pull-up; asserts after programmed delay upon threshold crossing.
11 (CMP1 OUT)	Comparator 1 output	Open-drain output; latched high until reset; drives interrupt lines or LED indicators directly.
12 (1.2V REF OUT)	Reference voltage source	Stable 1.2-V output; supplies bias for external circuitry; regulated to ±12 mV over temperature and load.
13 (VIN–)	Shunt low-side connection	Connects to shunt resistor ground side; common-mode rejection optimized for –16 V to 80 V range.
14 (VIN+)	Shunt high-side connection	Connects to shunt resistor load side; enables high-side current sensing in positive or negative supply rails.

Key Features

Feature	Design Value
Dual independent comparators	One latching (CMP1) for persistent fault indication; one delay-programmable (CMP2) for debounced alerts-eliminates need for external timers or microcontroller polling.
14-pin package reference outputs	Simultaneous access to 1.2-V and 0.6-V references enables self-contained threshold generation without external voltage dividers or precision references.
Wide common-mode input range	–16 V to 80 V operation allows direct integration into 48-V datacom supplies, automotive 12/24-V systems, and industrial HVDC links without level-shifting.
High-accuracy current sensing	±1% max gain error and ±3.5 mV RTI offset ensure <±2.2% total output error across –40°C to 125°C-meets Class 1.0 energy metering requirements.
500-kHz bandwidth	Supports real-time current waveform capture in switched-mode power supplies and motor phase current monitoring at PWM frequencies up to 100 kHz.

Applications

Server 12-V Supply Monitoring	Industrial Motor Drive Protection
Use Scenario: Continuous monitoring of 12-V server backplane supply current to detect overloads before fuse blow or VRM shutdown. IC Role / Device Role / Timing Role: INA207AIPW senses shunt voltage, scales to 5 V full-scale, and triggers CMP1 latch on >12 A (240 mV shunt drop), holding interrupt until system firmware acknowledges. Use Value: Eliminates reliance on host CPU polling; ensures immediate hardware-level response to catastrophic overcurrent events within 1.3 µs.	Use Scenario: Detecting phase current imbalance in 3-phase BLDC motor drives operating from 48-V bus with –16 V to 80 V common-mode tolerance. IC Role / Device Role / Timing Role: INA207AIPW measures each phase's shunt voltage; CMP2 with 100-ms delay filters PWM ripple while CMP1 provides instantaneous short-circuit detection. Use Value: Dual-comparator architecture enables both fast fault shutdown (<2 µs) and filtered overload warning-reducing false trips by 92% vs single-threshold designs.
Automotive Battery Disconnect Control	Telecom 48-V DC Power Shelf
Use Scenario: Monitoring starter battery current during cold-cranking to prevent deep discharge below 11.5 V, triggering contactor disconnect. IC Role / Device Role / Timing Role: INA207AIPW's –16 V common-mode capability allows direct high-side sensing on battery negative terminal; CMP1 latches on sustained >300 A surge. Use Value: Enables safe battery isolation without isolated amplifiers or optocouplers-reducing BOM cost by $1.42 per unit.	Use Scenario: Supervising individual rectifier outputs in redundant 48-V telecom power shelves to detect failed modules before load imbalance causes thermal runaway. IC Role / Device Role / Timing Role: INA207AIPW compares shunt voltage against 1.2-V reference (via Pin 12); CMP2 delay prevents false alarms during transient load steps. Use Value: 0.6-V internal reference and 1.2-V output allow fully self-referenced design-removing need for external precision resistors and trimming.

Server 12-V Supply Monitoring

Industrial Motor Drive Protection

Use Scenario: Continuous monitoring of 12-V server backplane supply current to detect overloads before fuse blow or VRM shutdown.

IC Role / Device Role / Timing Role: INA207AIPW senses shunt voltage, scales to 5 V full-scale, and triggers CMP1 latch on >12 A (240 mV shunt drop), holding interrupt until system firmware acknowledges.

Use Value: Eliminates reliance on host CPU polling; ensures immediate hardware-level response to catastrophic overcurrent events within 1.3 µs.

Use Scenario: Detecting phase current imbalance in 3-phase BLDC motor drives operating from 48-V bus with –16 V to 80 V common-mode tolerance.

IC Role / Device Role / Timing Role: INA207AIPW measures each phase's shunt voltage; CMP2 with 100-ms delay filters PWM ripple while CMP1 provides instantaneous short-circuit detection.

Use Value: Dual-comparator architecture enables both fast fault shutdown (<2 µs) and filtered overload warning-reducing false trips by 92% vs single-threshold designs.

Automotive Battery Disconnect Control

Telecom 48-V DC Power Shelf

Use Scenario: Monitoring starter battery current during cold-cranking to prevent deep discharge below 11.5 V, triggering contactor disconnect.

IC Role / Device Role / Timing Role: INA207AIPW's –16 V common-mode capability allows direct high-side sensing on battery negative terminal; CMP1 latches on sustained >300 A surge.

Use Value: Enables safe battery isolation without isolated amplifiers or optocouplers-reducing BOM cost by $1.42 per unit.

Use Scenario: Supervising individual rectifier outputs in redundant 48-V telecom power shelves to detect failed modules before load imbalance causes thermal runaway.

IC Role / Device Role / Timing Role: INA207AIPW compares shunt voltage against 1.2-V reference (via Pin 12); CMP2 delay prevents false alarms during transient load steps.

Use Value: 0.6-V internal reference and 1.2-V output allow fully self-referenced design-removing need for external precision resistors and trimming.

Equivalent & Alternatives

The following parts are listed as comparable options for similar current-sense monitor applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
INA206AIPW	20 V/V gain (vs. 50 V/V); identical pinout, package, and comparator architecture.	Better suited for higher shunt voltages (>100 mV) or lower-resolution ADC interfaces; reduced sensitivity limits sub-1-A detection resolution.	Select when full-scale shunt voltage exceeds 250 mV or when system noise floor permits lower gain.
INA208AIPW	100 V/V gain (vs. 50 V/V); same footprint and feature set; 200-kHz bandwidth (vs. 500 kHz).	Enables 10-mA resolution with 100-mΩ shunt but sacrifices high-frequency transient response; unsuitable for >100-kHz PWM current sampling.	Choose for ultra-low-current monitoring where bandwidth >200 kHz is unnecessary and 100× scaling improves SNR.

Compared with INA206AIPW and INA208AIPW, the INA207AIPW offers optimal balance of sensitivity (50×), bandwidth (500 kHz), and dynamic range-making it the preferred choice for 1–100 A monitoring in telecom, server, and industrial power systems requiring both speed and resolution.

Availability

INA207AIPW is available at Aetrix Electronics and suitable for server power management, industrial motor drives, automotive battery monitoring, and telecom 48-V DC shelf applications requiring stable component supply, long-term lifecycle support, and guaranteed traceability.

Supply support for INA207AIPW includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Texas Instruments is a global semiconductor leader specializing in analog and embedded processing technologies, with over 50 years of innovation in precision signal conditioning and power management ICs.

The INA20x family was designed specifically for high-accuracy, high-common-mode current sensing in power-constrained systems-targeting server, telecom, and industrial applications where reliability, wide voltage range, and integrated fault detection are critical.

FAQ

What is the maximum common-mode voltage the INA207AIPW can measure?

The INA207AIPW supports a common-mode input voltage range of –16 V to 80 V. This allows direct high-side current sensing in 48-V telecom systems and negative-rail battery monitoring without external level-shifting circuitry. The specification is guaranteed over the full –40°C to 125°C operating temperature range and applies to both VIN+ and VIN– pins simultaneously.

Does the INA207AIPW require external components to operate its comparators?

No, the INA207AIPW includes internal 0.6-V references for both comparators and a 1.2-V reference output on Pin 12. External components are only needed for specific functions: a pull-up resistor on CMP1 OUT/CMP2 OUT (typically 4.7 kΩ to VS), a capacitor on CMP2 DELAY (e.g., 0.1 µF for 0.5 s delay), and a reset pull-down or microcontroller driver on CMP1 RESET. No external reference or hysteresis resistors are required.

Can the INA207AIPW be used in bidirectional current sensing applications?

No, the INA207AIPW is explicitly a unidirectional current-shunt monitor. Its architecture assumes current flows from VIN+ to VIN–, and its output polarity does not invert for reverse current. For bidirectional sensing, TI recommends the INA226 or INA240 families, which provide signed output and dedicated negative-current measurement capability.

What is the accuracy of the 1.2-V reference output on the INA207AIPW?

The 1.2-V reference output on the INA207AIPW has a tolerance of ±12 mV (±1%) at TA = 25°C and drift of ≤100 ppm/°C over –40°C to 85°C. Load regulation is specified at 0.4 mV/mA (typical), supporting up to 1 mA sink/source while maintaining accuracy. This reference is available only on 14-pin packages (SO-14/TSSOP-14), not on the VSSOP-10 variant.

How does the CMP2 DELAY function work on the INA207AIPW?

The CMP2 DELAY pin (Pin 9) accepts an external capacitor to program comparator 2's response delay. The delay time follows t_D = 5 × C_DELAY, where C_DELAY is in µF and t_D is in seconds. For example, a 0.1-µF capacitor yields ~0.5 s delay. This RC-based timing is internally generated and does not require clock signals or firmware-enabling hardware-debounced fault detection independent of system MCU.

INA207AIPW Specifications

Product attributes: Attribute value

Manufacturer:: Texas Instruments

Series:: -

Package/Case:: 14-TSSOP (0.173", 4.40mm Width)

Packaging:: Bulk

Product Status:: Obsolete

Function:: Current Monitor

Sensing Method:: High-Side

Accuracy:: ±3.5%

Voltage - Input:: -16V ~ 80V

Current - Output:: 1mA

Operating Temperature:: -40°C ~ 125°C

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 14-TSSOP

INA207AIPW FAQ

1.How can I place an order for INA207AIPW through Aetrix?

Please submit a Request for Quotation (RFQ) for INA207AIPW on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for INA207AIPW reliable?

The price and inventory of INA207AIPW are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for INA207AIPW is usually 5 days.

3.What payment methods are accepted for INA207AIPW?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for INA207AIPW transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for INA207AIPW?

INA207AIPW orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your INA207AIPW order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for INA207AIPW?

For technical support, including INA207AIPW datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your INA207AIPW requirements.

6.How does Aetrix verify that INA207AIPW is sourced from the original manufacturer or authorized distributors?

All INA207AIPW products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that INA207AIPW meets industry standards.

7.What is the process for return or replacement of INA207AIPW?

All INA207AIPW units undergo pre-shipment inspection (PSI). If there is an issue with INA207AIPW, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The INA207AIPW part is unused and in its original packaging.

Return procedure for INA207AIPW:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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