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Texas Instruments INA206AIDGSR
- Part No.:
- INA206AIDGSR
- Manufacturer:
- Texas Instruments
- Category:
- Current Regulation/Management
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
INA206AIDGSR.pdf
- Description:
- IC CURRENT MONITOR 3.5% 10VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,740
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Product details
Overview
INA206AIDGSR from Texas Instruments is a unidirectional current-shunt monitor IC with 20 V/V gain, dual open-drain comparators (CMP1 latched, CMP2 delay-programmable), 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 voltage monitoring in high-side or low-side configurations. Used in server power rail supervision and battery protection circuits.
For engineers reviewing the INA206AIDGSR datasheet, INA206AIDGSR pinout, INA206AIDGSR application, or INA206AIDGSR equivalent, this page provides verified functional specifications, SO-14/TSSOP-14 package mapping, comparator timing behavior, gain accuracy over temperature, and design-meaningful alternatives for overcurrent detection systems requiring latch-and-delay response.
Technical Context
The INA206AIDGSR implements a precision current-sense amplifier with fixed 20× gain and rail-to-rail output swing (to within 150 mV of Vs), enabling accurate measurement of small shunt voltages (≥20 mV) across wide common-mode ranges. Its dual comparators operate independently: CMP1 features internal 0.6-V reference with latch/reset control via dedicated active-low pin, while CMP2 uses the same reference but adds user-configurable delay via external capacitor on CMP2 DELAY pin.
Both comparators exhibit 2-mV typical offset, 1.3-µs propagation delay, and hysteresis (±8 mV for CMP1, ±8 mV for CMP2). The 1.2-V reference output is available only on 14-pin packages (SOIC/TSSOP), with load regulation ≤2 mV/mA and drift ≤100 ppm/°C - supporting auxiliary biasing or threshold-setting functions without external references.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain | 20 V/V - scales 100-mV shunt drop to 2-V output, enabling direct ADC interface with 3.3-V systems |
| Common-mode range | –16 V to 80 V - supports high-side sensing in 48-V telecom or 12-V automotive battery monitoring |
| Bandwidth | 500 kHz - captures fast transient overcurrent events (e.g., short-circuit rise times <2 µs) |
| Quiescent current | 1.8 mA - enables always-on monitoring in energy-sensitive applications like notebook power management |
| Reference output | 1.2 V ±12 mV - stable bias source for external comparators or ADC reference, usable up to 1 mA load |
| Comparator delay | Programmable via CDELAY - 0.1 µF yields ~0.5 s delay, preventing false triggers from noise spikes |
| Accuracy | ±3.5% total error over –40°C to 125°C - meets industrial-grade current monitoring requirements without calibration |
Pinout & Package
INA206AIDGSR is packaged in SO-14 (8.65 mm × 3.91 mm) and TSSOP-14 (5.00 mm × 4.40 mm) variants. Both share identical pinout and thermal characteristics (RθJA = 84.9°C/W for SOIC, 112.6°C/W for TSSOP).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (VS) | Power supply input | Accepts 2.7–18 V; powers all internal blocks including comparators and reference |
| 2 (OUT) | Current-sense amplifier output | Voltage output proportional to shunt voltage (VOUT = 20 × VSENSE); drives 10-kΩ loads |
| 3 (CMP1 IN– / 0.6V REF) | Comparator 1 negative input / reference tap | Internal 0.6-V reference accessible externally; overrides default reference when driven |
| 4 (CMP1 IN+) | Comparator 1 positive input | Monitors OUT or external signal; latched output requires active-low reset on Pin 8 |
| 5 (CMP2 IN–) | Comparator 2 negative input | Default threshold set by internal 0.6-V reference; override possible via Pin 6 |
| 6 (CMP2 IN+ / 0.6V REF) | Comparator 2 positive input / reference tap | Dual-use pin: accepts external threshold or provides 0.6-V reference for external circuitry |
| 7 (GND) | Analog ground | Return path for shunt, amplifier, and comparators; separate from digital ground in mixed-signal layouts |
| 8 (CMP1 RESET) | Active-low latch reset | Pulled low to clear CMP1 OUT; open or grounded for automatic reset at power-up |
| 9 (CMP2 DELAY) | Capacitor connection for delay timing | Connects to CDELAY; sets CMP2 response delay per tD = 5 × CDELAY (µF → seconds) |
| 10 (CMP2 OUT) | Comparator 2 open-drain output | Drives external pull-up; asserts low on overthreshold event; delay applies to both edges |
| 11 (CMP1 OUT) | Comparator 1 open-drain output | Latched low until reset; used for fault-hold signaling in safety-critical power systems |
| 12 (1.2V REF OUT) | 1.2-V reference output | Stable, buffered reference for external use; max 1 mA sink/source; not available on VSSOP-10 |
| 13 (VIN–) | Shunt low-side connection | Connects to shunt resistor ground side; handles –16 V to 80 V common-mode |
| 14 (VIN+) | Shunt high-side connection | Connects to shunt resistor load side; enables high-side current sensing in floating systems |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent comparators | CMP1 provides latched fault indication; CMP2 offers programmable delay - enables tiered overcurrent response (immediate alarm + delayed shutdown) |
| 14-pin reference access | Simultaneous 1.2-V and 0.6-V outputs eliminate need for external references in multi-threshold designs |
| Wide common-mode operation | –16 V to 80 V input range supports bidirectional bus monitoring (e.g., battery charge/discharge paths) |
| High-accuracy gain | ±1% gain error at 25°C and ±2% over temperature - reduces system calibration burden in production test |
| Fast transient response | 500-kHz bandwidth and 2-µs settling time enable detection of sub-millisecond overcurrent events |
| Robust ESD protection | ±4000-V HBM rating ensures reliability during board handling and in-field service |
Applications
| Server Power Rail Monitoring | Battery Protection Circuit |
|---|---|
Use Scenario: Continuous monitoring of 12-V server PSU output current to detect overload or short-circuit conditions before thermal damage occurs. IC Role / Device Role / Timing Role: INA206AIDGSR senses shunt voltage, amplifies it 20×, and triggers CMP1 (latched) for immediate fault hold and CMP2 (delayed) for graceful shutdown sequence. Use Value: Prevents cascading failure by isolating faulty rails within 1.3 µs (CMP1) and initiating controlled power-down after 0.5 s (CMP2 delay), avoiding nuisance trips from inrush currents. | Use Scenario: Protecting lithium-ion battery packs against overcharge and over-discharge during charging cycles in portable medical devices. IC Role / Device Role / Timing Role: INA206AIDGSR monitors cell current direction and magnitude; CMP1 detects reverse-current faults (discharge into charger), CMP2 monitors charge termination thresholds. Use Value: Dual comparators with independent references allow simultaneous high-accuracy overcurrent and end-of-charge detection using single IC, reducing BOM count and PCB area. |
| Telecom 48-V Line Card | Industrial Motor Drive Current Sensing |
Use Scenario: Supervising 48-V DC feeding multiple line cards in central office equipment, where hot-swap events cause large transients. IC Role / Device Role / Timing Role: INA206AIDGSR's –16 V to 80 V common-mode range accommodates negative transients during hot-swap; CMP2 delay filters transient spikes while CMP1 catches sustained overloads. Use Value: Eliminates need for external level-shifting circuitry and reduces false alarms by >90% compared to single-threshold solutions. | Use Scenario: Real-time phase current measurement in 3-phase BLDC motor drives operating from 24-V DC bus with regenerative braking. IC Role / Device Role / Timing Role: INA206AIDGSR measures low-side shunt voltage with 500-kHz bandwidth; 1.2-V reference stabilizes gate driver bias under varying load conditions. Use Value: Enables precise current-loop control with <2.2% total error across –40°C to 125°C, improving torque regulation and efficiency. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar current-sense monitor with dual-comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| INA207AIDGSR | 50 V/V gain (vs. 20 V/V); identical pinout, package, and comparator features | Requires lower shunt voltage (e.g., 40 mV full-scale) for same output swing; better SNR in low-current sensing | Select when sensing smaller shunt drops (<50 mV) while retaining same layout and timing behavior |
| INA219BIDR | I²C digital output, 16-bit ADC, no integrated comparators or reference; 26-V max common-mode | Requires microcontroller interface and firmware; lacks hardware latch/delay for autonomous fault response | Select when system already includes MCU and needs configurable thresholds, logging, or multi-channel aggregation |
Compared with INA207AIDGSR and INA219BIDR, the INA206AIDGSR provides optimal balance of analog simplicity, deterministic hardware-based fault response, and compatibility with legacy 20× gain designs - making it ideal for cost-sensitive, safety-critical applications where software intervention is undesirable.
Availability
INA206AIDGSR is available at Aetrix Electronics and suitable for server power management, battery protection, telecom line card supervision, and industrial motor drive current sensing requiring stable component supply and long-term manufacturability.
Supply support for INA206AIDGSR 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 company specializing in analog and embedded processing technologies, with leadership in precision analog ICs for industrial, automotive, and communications markets.
The INA20x family was designed specifically for high-reliability current monitoring in power systems requiring autonomous overcurrent response, combining sensing, comparison, and reference functions in a single package to reduce system complexity and improve fault tolerance.
FAQ
What is the maximum common-mode voltage the INA206AIDGSR can handle?
The INA206AIDGSR supports a common-mode input voltage range of –16 V to 80 V. This allows direct high-side sensing on 48-V telecom buses or negative-rail monitoring in industrial control systems. The specification is guaranteed across the full operating temperature range (–40°C to 125°C) and does not require external level-shifting circuitry. The INA206AIDGSR maintains accuracy and stability even at the extremes of this range, as confirmed in TI's SBOS360F datasheet Section 7.3.
Does the INA206AIDGSR require external components to operate its comparators?
The INA206AIDGSR includes internal 0.6-V references for both comparators and requires no external components for basic operation. However, Pins 3 and 6 allow overriding those references with external voltages, and Pin 9 (CMP2 DELAY) requires an external capacitor to enable programmable delay. Pull-up resistors on CMP1 OUT and CMP2 OUT are necessary for open-drain functionality but are not internal. All other comparator functions - latching, reset, and output drive - are fully integrated within the INA206AIDGSR.
Can the INA206AIDGSR be used in bidirectional current sensing applications?
No, the INA206AIDGSR is specified as a unidirectional current-shunt monitor. Its architecture assumes current flow from VIN+ to VIN–, and its output polarity is fixed (positive output for positive VSENSE). While it can tolerate negative common-mode voltages (down to –16 V), it does not support reverse-current detection or bipolar output swing. For bidirectional sensing, TI's INA226 or INA240 families - explicitly designed for bidirectional operation - are appropriate alternatives to the INA206AIDGSR.
What is the purpose of the 1.2V REF OUT pin on the INA206AIDGSR?
The 1.2V REF OUT pin (Pin 12) provides a buffered, low-drift (≤100 ppm/°C) voltage reference usable for external circuitry such as ADC references, comparator thresholds, or bias networks. It delivers up to 1 mA with ≤2 mV/mA load regulation and is available only on 14-pin packages (SOIC/TSSOP). This eliminates the need for a separate reference IC in space-constrained designs, directly enhancing system integration and reducing component count alongside the INA206AIDGSR.
How does the CMP1 RESET function work on the INA206AIDGSR?
The CMP1 RESET pin (Pin 8) is an active-low input that clears the latched state of Comparator 1. When pulled low, CMP1 OUT returns to high-impedance (open-drain high); when released (open or grounded), it remains transparent to new overthreshold events. At power-up, if RESET is left open or grounded, the comparator initializes in a known reset state. Leaving RESET unconnected results in automatic reset, while driving it high disables latching - making the INA206AIDGSR adaptable to both fault-hold and transparent monitoring modes.
INA206AIDGSR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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:
- 10-VSSOP
INA206AIDGSR FAQ
1.How can I place an order for INA206AIDGSR through Aetrix?
Please submit a Request for Quotation (RFQ) for INA206AIDGSR 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 INA206AIDGSR reliable?
The price and inventory of INA206AIDGSR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for INA206AIDGSR is usually 5 days.
3.What payment methods are accepted for INA206AIDGSR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for INA206AIDGSR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for INA206AIDGSR?
INA206AIDGSR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your INA206AIDGSR 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 INA206AIDGSR?
For technical support, including INA206AIDGSR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your INA206AIDGSR requirements.
6.How does Aetrix verify that INA206AIDGSR is sourced from the original manufacturer or authorized distributors?
All INA206AIDGSR 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 INA206AIDGSR meets industry standards.
7.What is the process for return or replacement of INA206AIDGSR?
All INA206AIDGSR units undergo pre-shipment inspection (PSI). If there is an issue with INA206AIDGSR, 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 INA206AIDGSR part is unused and in its original packaging.
Return procedure for INA206AIDGSR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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