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

Texas Instruments INA216A3YFFR

Name: INA216A3YFFR
Brand: Texas Instruments
SKU: INA216A3YFFR
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: INA216A3YFFR

Manufacturer:: Texas Instruments

Category:: Current Regulation/Management

Package:: 4-UFBGA, DSBGA

Datasheet:: INA216A3YFFR.pdf

Description:: IC CURRENT MONITOR 0.06% 4DSBGA

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Product details

Overview

INA216A3YFFR from Texas Instruments is a unidirectional, high-side current shunt monitor IC with 100V/V fixed gain, ±20μV max input offset voltage, 5kHz bandwidth, and operates from +1.8V to +5.5V supply. It senses shunt voltage drops as low as 10mV full-scale in notebook power management and battery charger circuits.

For engineers reviewing the INA216A3YFFR datasheet, INA216A3YFFR pinout, INA216A3YFFR application, or INA216A3YFFR equivalent, this page delivers verified specifications, WCSP-4 package details, real-world use cases, and validated alternative options for precision current sensing designs requiring low quiescent current (13μA) and wide common-mode range (+1.8V to +5.5V).

Technical Context

The INA216A3YFFR uses zero-drift auto-zero architecture to achieve ±20μV max input offset voltage and 0.03μV/°C drift, enabling accurate low-voltage shunt measurements. Its fixed 100V/V gain is implemented via internal laser-trimmed resistors, eliminating external gain-setting components.

This device draws only 13μA quiescent current and delivers buffered voltage output directly-no external op-amp required. Input common-mode range extends from GND+1.8V to V_IN++0.3V, supporting high-side sensing in systems where supply rail and load share a common ground reference.

Key Specifications

Parameter	Value and Actual Design Meaning
Gain	100V/V - fixed ratio; converts 10mV shunt drop to 1V output, enabling direct ADC interface without scaling.
Input Offset Voltage	±20μV max - enables ≤0.2% error at 10mV full-scale shunt voltage, critical for 1000:1 dynamic range applications.
Common-Mode Range	+1.8V to +5.5V - supports high-side sensing on 3.3V and 5V rails without level-shifting circuitry.
Bandwidth	5kHz - sufficient for DC–5kHz current monitoring in battery charging and power sequencing control loops.
Quiescent Current	13μA - allows integration into always-on power domains without compromising system standby efficiency.
Supply Voltage	+1.8V to +5.5V - powers directly from IN+ pin; no separate V_CC required, simplifying layout and reducing BOM count.
Operating Temp	–40°C to +125°C - qualified for automotive cabin electronics and industrial power modules.

Pinout & Package

INA216A3YFFR is packaged in a 4-bump DSBGA (WCSP-4) with 0.4mm pitch, measuring 0.87mm × 0.87mm × 0.33mm. This chip-scale package enables ultra-compact placement adjacent to shunt resistors in space-constrained portable electronics.

Pin/Terminal	Circuit Role	Design Meaning
IN+	High-side shunt connection & power supply input	Serves dual role: connects to positive shunt terminal and supplies internal circuitry; minimum common-mode = +1.8V.
IN−	Low-side shunt connection	Connects directly to shunt resistor's load-side terminal; differential input accepts up to ±5.5V relative to IN+.
GND	Analog ground reference	Provides return path for internal bias currents; must be tied to system ground near shunt Kelvin sense point.
OUT	Voltage output	Buffered rail-to-rail capable output (to GND +0.002V / to V_IN+ −0.3V); drives 10kΩ loads directly.

Key Features

Feature	Design Value
Zero-drift architecture	±20μV max offset and 0.03μV/°C drift ensure stable accuracy across –40°C to +125°C without calibration.
Fixed 100V/V gain	Eliminates external resistor network, reducing layout sensitivity and improving temperature stability vs. discrete gain stages.
Buffered voltage output	42Ω output impedance and 750pF capacitive load drive capability enable direct connection to SAR ADC inputs.
Chip-scale WCSP-4 package	0.87mm × 0.87mm footprint minimizes parasitic inductance and thermal resistance (θ_JA = 160°C/W), ideal for high-density PCBs.
Wide common-mode range	+1.8V to +5.5V operation supports sensing on 2S–3S Li-ion battery packs and USB PD power paths without auxiliary supplies.

Applications

Power Management in Notebooks	Battery Charger Monitoring
Use Scenario: Real-time current measurement of CPU/GPU VRM output rails during dynamic load transients. IC Role / Device Role / Timing Role: High-side current shunt monitor providing analog feedback to PMIC for adaptive voltage scaling and overcurrent protection. Use Value: 100V/V gain and 5kHz bandwidth capture fast load steps; ±20μV offset ensures <0.2% error at 10mV shunt drop, preserving VRM efficiency margins.	Use Scenario: Precision charge current regulation in single-cell Li-ion chargers using 2mΩ shunt resistors. IC Role / Device Role / Timing Role: Unidirectional current sensor feeding ADC input of charger controller IC for CC/CV loop closure. Use Value: 13μA quiescent current avoids loading battery during sleep mode; +1.8V min common-mode supports low-voltage charging down to 2.7V cell voltage.
Telecom Equipment Power Rails	Industrial IoT Sensor Node Power Supervision
Use Scenario: Monitoring 48V intermediate bus current in PoE-powered switches and baseband units. IC Role / Device Role / Timing Role: High-side current monitor interfacing with isolated ADC via digital isolator, reporting rail health to host MCU. Use Value: +5.5V max common-mode and 100V/V gain allow direct sensing on 3.3V logic-supplied rails derived from 48V bus; WCSP-4 package fits tight spacing near hot-swap controllers.	Use Scenario: Battery current logging in wireless sensor nodes with 10-year lifetime targets. IC Role / Device Role / Timing Role: Low-power current monitor supplying data to ultra-low-power MCU for state-of-charge estimation and fault detection. Use Value: 13μA IQ and –40°C to +125°C rating support long-term deployment in uncontrolled environments; 0.87mm² footprint conserves PCB area for coin-cell powered designs.

Power Management in Notebooks

Battery Charger Monitoring

Use Scenario: Real-time current measurement of CPU/GPU VRM output rails during dynamic load transients.

IC Role / Device Role / Timing Role: High-side current shunt monitor providing analog feedback to PMIC for adaptive voltage scaling and overcurrent protection.

Use Value: 100V/V gain and 5kHz bandwidth capture fast load steps; ±20μV offset ensures <0.2% error at 10mV shunt drop, preserving VRM efficiency margins.

Use Scenario: Precision charge current regulation in single-cell Li-ion chargers using 2mΩ shunt resistors.

IC Role / Device Role / Timing Role: Unidirectional current sensor feeding ADC input of charger controller IC for CC/CV loop closure.

Use Value: 13μA quiescent current avoids loading battery during sleep mode; +1.8V min common-mode supports low-voltage charging down to 2.7V cell voltage.

Telecom Equipment Power Rails

Industrial IoT Sensor Node Power Supervision

Use Scenario: Monitoring 48V intermediate bus current in PoE-powered switches and baseband units.

IC Role / Device Role / Timing Role: High-side current monitor interfacing with isolated ADC via digital isolator, reporting rail health to host MCU.

Use Value: +5.5V max common-mode and 100V/V gain allow direct sensing on 3.3V logic-supplied rails derived from 48V bus; WCSP-4 package fits tight spacing near hot-swap controllers.

Use Scenario: Battery current logging in wireless sensor nodes with 10-year lifetime targets.

IC Role / Device Role / Timing Role: Low-power current monitor supplying data to ultra-low-power MCU for state-of-charge estimation and fault detection.

Use Value: 13μA IQ and –40°C to +125°C rating support long-term deployment in uncontrolled environments; 0.87mm² footprint conserves PCB area for coin-cell powered designs.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
INA215A3YFFR	Same WCSP-4 package and 100V/V gain, but ±50μV max offset and 10kHz bandwidth.	Higher offset limits resolution below 20mV shunt drop; wider bandwidth suits faster transient response needs.	Select when cost sensitivity outweighs sub-10mV measurement requirement and higher bandwidth is needed.
MAX4005AUB+T	50V/V gain, ±100μV offset, 100kHz bandwidth, 8-pin μMAX package, 2.7V–5.5V supply.	Lower gain requires larger shunt voltage; higher bandwidth and supply flexibility suit mixed-voltage systems.	Choose when >100kHz signal content exists or dual-supply compatibility is required; not pin-compatible.

Compared with INA216A3YFFR, INA215A3YFFR trades offset performance for lower cost in less demanding applications, while MAX4005AUB+T offers higher bandwidth and supply flexibility at the expense of gain and offset precision-neither is pin-compatible, requiring layout revision.

Availability

INA216A3YFFR is available at Aetrix Electronics and suitable for notebook computers, battery chargers, and telecom equipment requiring stable component supply with guaranteed long-term availability and traceable sourcing.

Supply support for INA216A3YFFR 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 delivering analog and embedded processing solutions, with over 90,000 products serving industrial, automotive, and personal electronics markets.

The INA216 series was designed specifically for ultra-low-power, high-accuracy unidirectional current sensing in space-constrained portable and battery-powered systems-emphasizing zero-drift stability, minimal quiescent current, and chip-scale packaging.

FAQ

What is the maximum common-mode voltage the INA216A3YFFR can handle?

The INA216A3YFFR supports a common-mode input range from +1.8V to +5.5V. This means the voltage at the IN+ pin-relative to system ground-must stay within that window for proper operation. Exceeding +5.5V risks damage; operation below +1.8V disables internal circuitry. The device is not rated for negative common-mode voltages.

Does the INA216A3YFFR require an external power supply pin?

No. The INA216A3YFFR derives its operating power directly from the IN+ pin, which serves as both the high-side shunt connection and the supply input. This eliminates the need for a dedicated V_CC pin and reduces system-level complexity, but constrains the minimum common-mode voltage to +1.8V.

What is the typical bandwidth and slew rate of the INA216A3YFFR?

The INA216A3YFFR has a typical small-signal bandwidth of 5kHz (with 10pF load) and a slew rate of 0.03V/μs. These values support accurate DC and low-frequency AC current monitoring-such as battery charge/discharge profiling and power rail supervision-but are not intended for high-speed pulse current analysis.

Can the INA216A3YFFR be used for bidirectional current sensing?

No. The INA216A3YFFR is explicitly designed for unidirectional current sensing only. Its input stage and output polarity are optimized for positive current flow from IN+ to IN−. For bidirectional applications, consider TI's INA226 or similar devices with true differential output and signed gain architecture.

What package type and marking does the INA216A3YFFR use?

The INA216A3YFFR uses a 4-bump DSBGA (WCSP-4) package with 0.4mm pitch and physical dimensions of 0.87mm × 0.87mm × 0.33mm. Its top-side marking is "OY", and it is RoHS-compliant with SNAGCU lead finish and Level-1 moisture sensitivity rating.

INA216A3YFFR Specifications

Product attributes: Attribute value

Manufacturer:: Texas Instruments

Series:: Zero-Drift

Package/Case:: 4-UFBGA, DSBGA

Packaging:: Tape & Reel (TR)

Product Status:: Active

Function:: Current Monitor

Sensing Method:: High-Side

Accuracy:: ±0.06%

Voltage - Input:: 1.8V ~ 5.5V

Current - Output:: -

Operating Temperature:: -40°C ~ 125°C

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 4-DSBGA (1x1)

INA216A3YFFR FAQ

1.How can I place an order for INA216A3YFFR through Aetrix?

Please submit a Request for Quotation (RFQ) for INA216A3YFFR 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 INA216A3YFFR reliable?

The price and inventory of INA216A3YFFR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for INA216A3YFFR is usually 5 days.

3.What payment methods are accepted for INA216A3YFFR?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for INA216A3YFFR transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for INA216A3YFFR?

INA216A3YFFR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your INA216A3YFFR 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 INA216A3YFFR?

For technical support, including INA216A3YFFR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your INA216A3YFFR requirements.

6.How does Aetrix verify that INA216A3YFFR is sourced from the original manufacturer or authorized distributors?

All INA216A3YFFR 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 INA216A3YFFR meets industry standards.

7.What is the process for return or replacement of INA216A3YFFR?

All INA216A3YFFR units undergo pre-shipment inspection (PSI). If there is an issue with INA216A3YFFR, 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 INA216A3YFFR part is unused and in its original packaging.

Return procedure for INA216A3YFFR:

1.Submit a request within 90 days.

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

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