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Texas Instruments INA206AIDGST
- Part No.:
- INA206AIDGST
- Manufacturer:
- Texas Instruments
- Category:
- Current Regulation/Management
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
INA206AIDGST.pdf
- Description:
- IC CURRENT MONITOR 3.5% 10VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,600
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Product details
Overview
INA206AIDGST from Texas Instruments is a unidirectional current-shunt monitor IC with 20 V/V gain, dual open-drain comparators (CMP1 latched, CMP2 programmable delay), and integrated 1.2-V reference output - designed for high-side or low-side shunt sensing across –16 V to 80 V common-mode voltage in power supply monitoring and overcurrent protection circuits.
For engineers reviewing the INA206AIDGST datasheet, INA206AIDGST pinout, INA206AIDGST application, or INA206AIDGST equivalent, key selection criteria include its 500-kHz bandwidth, ±3.5% total output error over temperature, 1.8-mA quiescent current, SO-14/TSSOP-14 package compatibility, and dual-comparator timing behavior with external capacitor control on CMP2 DELAY.
Technical Context
The INA206AIDGST implements a precision current-sense amplifier stage followed by two independent comparators: CMP1 features internal 0.6-V reference and latch/reset functionality via active-low CMP1 RESET pin; CMP2 offers user-adjustable delay via external capacitor on CMP2 DELAY pin and shares the same 0.6-V reference (overridable on pins 3 and 6). Both comparators drive open-drain outputs (CMP1 OUT, CMP2 OUT) compatible with 5-V or 12-V pull-up rails.
Its 1.2-V REF OUT provides a stable, low-drift (≤100 ppm/°C) reference for external circuitry, available only on 14-pin packages. The device operates from a single 2.7-V to 18-V supply and maintains accuracy across –40°C to +125°C, supporting robust operation in telecom, automotive, and industrial power systems where wide common-mode range and fault response timing are critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain | 20 V/V - scales 100-mV shunt drop to 2-V output, enabling direct interface with 3.3-V ADCs without attenuation. |
| Common-mode input range | –16 V to 80 V - supports high-side sensing in 48-V telecom supplies and negative-rail battery monitoring. |
| Bandwidth | 500 kHz - captures fast transient overcurrent events (e.g., short-circuit rise times <2 µs). |
| Total output error | ±3.5% over –40°C to +125°C - ensures reliable trip-point accuracy in thermal-cycling environments. |
| Quiescent current | 1.8 mA - enables low-power operation in always-on monitoring paths without compromising speed. |
| Reference output | 1.2 V ±12 mV (25°C), ≤100 ppm/°C drift - usable as precision bias for external comparators or ADC references. |
| Comparator response time | 1.3 µs (typ.) - delivers sub-microsecond fault detection for safety-critical shutdown sequences. |
Pinout & Package
INA206AIDGST is packaged in SO-14 (8.65 mm × 3.91 mm) and TSSOP-14 (5.00 mm × 4.40 mm) variants, both pin-compatible and RoHS-compliant. Pin functions are identical across both packages.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - VS | Power supply input | Accepts 2.7–18 V; powers all internal blocks including reference and comparators. |
| 2 - OUT | Analog output | Voltage output = 20 × (VIN+ − VIN−); rail-to-rail swing capability supports wide dynamic range. |
| 3 - CMP1 IN− / 0.6V REF | Comparator 1 negative input / reference tap | Internal 0.6-V reference accessible externally; can be overridden for custom threshold setting. |
| 4 - CMP1 IN+ | Comparator 1 positive input | Compares against pin 3 reference or external signal; triggers latched CMP1 OUT when exceeded. |
| 5 - CMP2 IN− | Comparator 2 negative input | Standard comparator input; referenced to internal 0.6-V or external override on pin 6. |
| 6 - CMP2 IN+ / 0.6V REF | Comparator 2 positive input / reference tap | Dual-function pin: provides second 0.6-V reference or accepts external threshold voltage. |
| 7 - GND | Analog ground | Return path for shunt current measurement and internal circuitry; separate from digital ground. |
| 8 - CMP1 RESET | Active-low reset control | Pulls CMP1 OUT low when asserted; open or grounded at power-up ensures defined initial state. |
| 9 - CMP2 DELAY | Capacitor connection for delay timing | Connects external capacitor (e.g., 0.1 µF → 0.5 s delay); controls CMP2 output assertion/release timing. |
| 10 - CMP2 OUT | Comparator 2 open-drain output | Drives low on threshold breach; requires external pull-up; delay applies to both rising/falling edges. |
| 11 - CMP1 OUT | Comparator 1 open-drain output | Latched output - remains asserted until CMP1 RESET is pulsed low; enables persistent fault flagging. |
| 12 - 1.2V REF OUT | Reference voltage output | Stable 1.2-V source (±12 mV, ≤100 ppm/°C); supports ≤1 mA load; not available on 10-pin variant. |
| 13 - VIN− | Shunt low-side connection | Connects to shunt resistor's low-side terminal; enables bidirectional common-mode support down to –16 V. |
| 14 - VIN+ | Shunt high-side connection | Connects to shunt resistor's high-side terminal; handles up to +80 V common-mode voltage. |
Key Features
| Feature | Design Value |
|---|---|
| Unidirectional current sensing | Accurate measurement of shunt voltage drops from –16 V to +80 V common-mode, enabling high-side or low-side placement in 12–48 V systems. |
| Dual open-drain comparators | CMP1 provides latched fault flag with hardware reset; CMP2 adds user-programmable delay (via external capacitor) for debounced overcurrent response. |
| Integrated 1.2-V reference | Low-drift (≤100 ppm/°C), load-regulated (0.4 mV/mA) reference output - eliminates need for external precision reference in auxiliary monitoring circuits. |
| Wide supply range | Operates from 2.7 V to 18 V - supports direct connection to 3.3-V, 5-V, or 12-V rails without LDO regulation. |
| High-speed response | 500-kHz bandwidth and 1.3-µs comparator propagation enable real-time detection of fast transients in motor drives and DC-DC converters. |
Applications
| Server Power Supply Monitoring | Automotive Battery Management |
|---|---|
|
Use Scenario: Real-time monitoring of 12-V server PSU output current to detect overloads before thermal shutdown. IC Role / Device Role / Timing Role: INA206AIDGST senses shunt voltage, generates analog output for telemetry, and asserts latched CMP1 OUT on overcurrent to trigger immediate system-level shutdown. Use Value: 500-kHz bandwidth captures sub-millisecond surge events; 1.2-V REF OUT biases external ADC for accurate current logging. |
Use Scenario: Protection of 12-V lead-acid battery during charging/discharging in start-stop vehicles. IC Role / Device Role / Timing Role: INA206AIDGST monitors charge current via high-side shunt, uses CMP2 with 100-ms delay to ignore inrush spikes, and latches CMP1 on sustained overcurrent. Use Value: –16 V to +80 V common-mode range accommodates cold-crank (–12 V) and load-dump (≥60 V) conditions without level-shifting. |
| Telecom 48-V DC Distribution | Industrial Motor Drive Protection |
|
Use Scenario: Fault detection in 48-V intermediate bus powering multiple line cards in telecom equipment. IC Role / Device Role / Timing Role: INA206AIDGST measures branch current with 20-V/V gain, feeds analog output to supervisory MCU, and drives CMP2 OUT with 500-ms delay to suppress false trips during hot-plug insertion. Use Value: Dual comparator architecture separates fast-trip (CMP1) and delayed-trip (CMP2) logic - reducing nuisance alarms while maintaining safety. |
Use Scenario: Overcurrent protection for IGBT gate drivers in 24-V brushless DC motor controllers. IC Role / Device Role / Timing Role: INA206AIDGST senses motor phase current via low-side shunt, outputs analog signal for closed-loop control, and asserts CMP1 OUT to disable PWM on hard short. Use Value: 1.8-mA quiescent current minimizes standby loss; SO-14 package supports automated PCB assembly in high-volume motor modules. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar current-sense monitor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| INA207AIDGST | 50 V/V gain (vs. 20 V/V); otherwise identical pinout, reference, and comparator architecture. | Better suited for lower shunt voltages (e.g., 40-mV full-scale), requiring higher output swing for noise immunity. | Select INA207AIDGST when shunt voltage is ≤40 mV and system needs higher output resolution without gain-stage amplification. |
| INA219BIDR | I²C digital output (26-bit ADC), no analog output or dual comparators; 16-V max common-mode; built-in power calculation engine. | Targets microcontroller-based systems needing digital telemetry and energy monitoring, not hardware-triggered shutdown. | Choose INA219BIDR for smart power meters or battery fuel gauging where software-controlled thresholds and energy integration are required. |
Compared with INA207AIDGST, the INA206AIDGST provides lower gain for higher shunt voltage tolerance and reduced sensitivity to noise; versus INA219BIDR, it delivers deterministic hardware-level fault response without MCU dependency - critical for failsafe overcurrent protection.
Availability
INA206AIDGST is available at Aetrix Electronics and suitable for server power supply monitoring, automotive battery management, and telecom 48-V DC distribution requiring stable component supply and long-term production continuity.
Supply support for INA206AIDGST 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 decades of expertise in precision signal conditioning and power management ICs.
The INA20x family was engineered for high-reliability current sensing in harsh electrical environments - delivering wide common-mode range, integrated fault detection, and reference stability for telecom, automotive, and industrial power systems.
FAQ
What is the maximum common-mode voltage supported by the INA206AIDGST?
The INA206AIDGST supports a common-mode input voltage range from –16 V to +80 V on VIN+ and VIN– pins. This allows direct high-side sensing in 48-V telecom systems and compatibility with negative-rail battery monitoring. Operation outside this range risks damage or undefined behavior per absolute maximum ratings.
Does the INA206AIDGST require external components to operate its comparators?
Yes - the INA206AIDGST comparators require external pull-up resistors on CMP1 OUT and CMP2 OUT (typically 4.7 kΩ to VS), and CMP2 DELAY needs an external capacitor (e.g., 0.1 µF for 0.5 s delay). CMP1 RESET may be left open or pulled to GND for default latching behavior; no external reference is needed as internal 0.6-V and 1.2-V references are provided.
Can the 1.2-V reference output of the INA206AIDGST drive external circuitry?
Yes - the 1.2V REF OUT pin delivers up to 1 mA with ≤2 mV/mA load regulation and ≤100 ppm/°C drift. It is specified for use as a precision bias source for external comparators, ADC references, or sensor excitation. Do not exceed 10 nF capacitive load to avoid oscillation.
How does the latching function of CMP1 work in the INA206AIDGST?
CMP1 OUT remains asserted (low) after crossing its threshold until CMP1 RESET is pulsed low. Leaving CMP1 RESET open or grounded at power-up initializes the latch in a known state. A minimum 1.5-µs pulse width on CMP1 RESET is required for reliable reset, and the pin has an internal 2-MΩ pull-down - ensuring transparent operation if left unconnected.
Is the INA206AIDGST pin-compatible with other devices in the INA20x family?
Yes - the INA206AIDGST, INA207AIDGST, and INA208AIDGST share identical SO-14 and TSSOP-14 pinouts, electrical interfaces, and functional block diagrams. Only the gain (20 V/V, 50 V/V, 100 V/V) differs; all comparator, reference, and supply characteristics remain consistent across the family.
INA206AIDGST 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:
- 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:
- 10-VSSOP
INA206AIDGST FAQ
1.How can I place an order for INA206AIDGST through Aetrix?
Please submit a Request for Quotation (RFQ) for INA206AIDGST 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 INA206AIDGST reliable?
The price and inventory of INA206AIDGST are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for INA206AIDGST is usually 5 days.
3.What payment methods are accepted for INA206AIDGST?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for INA206AIDGST transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for INA206AIDGST?
INA206AIDGST orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your INA206AIDGST 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 INA206AIDGST?
For technical support, including INA206AIDGST datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your INA206AIDGST requirements.
6.How does Aetrix verify that INA206AIDGST is sourced from the original manufacturer or authorized distributors?
All INA206AIDGST 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 INA206AIDGST meets industry standards.
7.What is the process for return or replacement of INA206AIDGST?
All INA206AIDGST units undergo pre-shipment inspection (PSI). If there is an issue with INA206AIDGST, 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 INA206AIDGST part is unused and in its original packaging.
Return procedure for INA206AIDGST:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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