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Texas Instruments INA200AIDR
- Part No.:
- INA200AIDR
- Manufacturer:
- Texas Instruments
- Category:
- Current Regulation/Management
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
INA200AIDR.pdf
- Description:
- IC CURRENT MONITOR 3.5% 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,598
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Product details
Overview
INA200AIDR from Texas Instruments is a high-side current-shunt monitor IC with integrated open-drain comparator and 0.6-V internal reference, designed for overcurrent detection in power rails up to 80 V. It provides fixed 20 V/V gain, 500-kHz bandwidth, ±3.5% total output error over temperature, and operates from 2.7 V to 18 V supply. Used in notebook battery protection circuits to convert shunt voltage into proportional output and trigger fault shutdown via comparator.
For engineers reviewing the INA200AIDR datasheet, INA200AIDR pinout, INA200AIDR application, or INA200AIDR equivalent, this page delivers verified functional identity, validated SOIC-8 package mapping, confirmed 8-pin terminal roles, exact gain/accuracy/bandwidth specs, and two field-validated alternative parts with documented technical and application differences.
Technical Context
The INA200AIDR implements a precision current-sense amplifier with differential input stage referenced to –16 V to +80 V common-mode range, feeding a buffered voltage output (OUT) and a dedicated comparator stage. Its comparator features latching behavior controlled by RESET pin logic and uses an internal 0.6-V threshold referenced to CMPIN.
It supports transparent comparator operation when RESET is grounded or left floating (due to internal 2-MΩ pull-down), and enables external trip-point setting via resistor dividers on CMPIN. The device draws ≤1800 μA quiescent current and maintains 80 dB minimum CMRR across its full operating temperature range (–40°C to +125°C).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain | 20 V/V - scales shunt voltage drop linearly to output; enables 100-mV sense input to produce 2-V output at 12-V supply |
| Common-mode range | –16 V to +80 V - supports high-side sensing in automotive 48-V systems and telecom -48-V return paths |
| Bandwidth | 500 kHz - sufficient for fast overcurrent response in DC-DC converter output monitoring |
| Total output error | ±3.5% max over –40°C to +125°C - includes gain error, offset drift, and CMR effects; defines worst-case accuracy in thermal cycling |
| Comparator threshold | 586 mV to 625 mV over temperature - 0.6-V nominal internal reference sets trip point for external current-limiting divider networks |
| Quiescent current | 1800 μA max - enables low-power always-on monitoring in battery-backed systems without excessive drain |
| Supply voltage | 2.7 V to 18 V - compatible with single-supply industrial control rails and wide-input DC-DC converters |
Pinout & Package
INA200AIDR is packaged in an 8-pin SOIC (D package), body size 4.90 mm × 3.91 mm, with standard JEDEC MS-012AC footprint and gull-wing leads. Thermal resistance θJA = 110.5°C/W (SOIC-8, 2-layer board).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN+ | Analog input | Connects to high side of current-sense shunt; withstands up to +80 V common-mode voltage |
| VIN− | Analog input | Connects to low side of shunt; completes differential sense path; supports negative rail operation down to –16 V |
| OUT | Analog output | Voltage-output buffer (20× gain); drives 10-kΩ load with <1.5-Ω output impedance; swings within 0.25 V of supply rail |
| CMPOUT | Open-drain comparator output | Active-low latched flag; requires external pull-up (e.g., 5.1 kΩ to VS); sinks ≥2.35 mA at 300 mV VOL |
| CMPIN | Comparator input | Inverting input for comparator; accepts externally divided output of OUT to set precise current trip threshold |
| RESET | Digital control input | Active-low reset for comparator latch; internally pulled down (2 MΩ); floating or grounded enables transparent mode |
| VS | Power supply | Single 2.7–18 V analog supply; powers both amplifier and comparator; max 1800 μA draw |
| GND | Analog ground | Reference node for amplifier output and comparator; must be Kelvin-connected to shunt low side for accuracy |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 0.6-V reference | Enables stable comparator threshold without external precision reference; reduces BOM count and layout area |
| Latching comparator | Retains fault state until explicit RESET assertion; prevents nuisance tripping during transient overloads in motor drives |
| –16 V to +80 V common-mode range | Supports bidirectional sensing in negative-ground and positive-ground systems; eliminates need for level-shifting circuitry |
| 500-kHz bandwidth (INA200) | Responds to sub-2-μs current surges; suitable for real-time protection in switched-mode power supplies |
| SOIC-8 and VSSOP-8 packaging | Enables drop-in replacement between compact and standard footprints; supports automated assembly and thermal management |
Applications
| Server Power Supply Monitoring | Automotive 48-V Battery Management |
|---|---|
|
Use Scenario: Real-time monitoring of +12-V and +48-V output rails in rack-mounted server PSUs to detect short-circuit faults before MOSFET failure. IC Role / Device Role / Timing Role: High-side current shunt monitor converting millivolt-level shunt voltage into scalable analog output while simultaneously asserting latched fault signal via CMPOUT. Use Value: Enables sub-2-μs overcurrent response using 500-kHz bandwidth and eliminates external reference, reducing component count by 2–3 parts per rail. |
Use Scenario: Protecting 48-V starter-generator circuits in mild-hybrid vehicles against sustained overloads during regenerative braking or cold cranking. IC Role / Device Role / Timing Role: High-side sensing element interfaced with shunt resistor upstream of main contactor; comparator output drives gate driver enable/disable logic. Use Value: Operates reliably at –40°C to +125°C with ±3.5% error, meeting AEC-Q100 Grade 1 requirements without calibration. |
| Notebook Battery Charge Protection | Industrial DC Motor Drive Current Limiting |
|
Use Scenario: Monitoring charge current into Li-ion battery packs during CC/CV charging cycles to prevent cell overcurrent and thermal runaway. IC Role / Device Role / Timing Role: Voltage-output current monitor feeding ADC input of system MCU while providing hardware-fast comparator trip to disable charging FETs. Use Value: Dual-path output (analog + digital) allows both software-controlled adaptive limits and hardware-enforced safety cutoff with no latency. |
Use Scenario: Detecting stall currents in 24-V brushed DC motors used in factory automation actuators to initiate immediate shutdown before winding damage. IC Role / Device Role / Timing Role: High-side current sensor placed between H-bridge and motor; comparator latches on overcurrent and holds fault until controller-initiated RESET pulse. Use Value: Latching function prevents oscillation at trip threshold during motor commutation noise; RESET pin allows synchronized recovery after fault clearance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-side current-shunt monitor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| INA201AIDR | 50 V/V gain (vs. 20 V/V); 300-kHz bandwidth; same pinout, reference, and comparator architecture | Better resolution for low-current sensing (<50 mA), but reduced dynamic range and slower response than INA200AIDR | Select when shunt voltage is limited to ≤20 mV and higher gain is required to meet ADC input sensitivity |
| INA210AIDR | 20 V/V gain, 500-kHz bandwidth, but only 26-V common-mode range (vs. 80 V); no integrated comparator or reference | Requires external comparator and reference; unsuitable for –16 V to 80 V rails; lower cost for mid-voltage applications | Choose for cost-sensitive 3.3/5/12-V systems where external components are acceptable and extended common-mode is unnecessary |
Compared with INA201AIDR and INA210AIDR, the INA200AIDR uniquely balances 80-V common-mode tolerance, integrated comparator functionality, and 500-kHz bandwidth-making it the only option among the three that supports robust overcurrent protection in high-voltage, thermally demanding, and space-constrained designs without external support components.
Availability
INA200AIDR is available at Aetrix Electronics and suitable for server power supply monitoring, automotive 48-V battery management, and notebook battery charge protection requiring stable component supply across extended temperature and voltage ranges.
Supply support for INA200AIDR 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 signal chains and power management ICs.
The INA200 family is part of TI's high-side current-sense amplifier product line, engineered specifically for accurate, high-common-mode, integrated-fault-detection current monitoring in power conversion, battery, and motor control systems.
FAQ
What is the maximum common-mode voltage supported by the INA200AIDR?
The INA200AIDR supports a common-mode input voltage range of –16 V to +80 V. This specification is validated across the full operating temperature range (–40°C to +125°C) and enables direct high-side sensing in 48-V automotive systems, telecom –48-V return paths, and industrial 24/48-V DC distribution rails without external level-shifting circuitry. The INA200AIDR maintains specified accuracy and stability within this range.
Does the INA200AIDR require an external reference for the comparator function?
No, the INA200AIDR does not require an external reference for the comparator function. It integrates a precision 0.6-V internal reference used directly by the comparator stage. The threshold is specified as 586 mV to 625 mV over temperature, and external resistor dividers on CMPIN allow programmable current trip points while leveraging this built-in reference-reducing component count and improving system reliability compared to discrete reference solutions.
How does the RESET pin affect comparator behavior in the INA200AIDR?
The RESET pin on the INA200AIDR controls latching behavior of the comparator: when held low (or left floating, due to internal 2-MΩ pull-down), the comparator operates in transparent mode; when pulsed high, it resets the latched fault state. This enables flexible fault-handling strategies-e.g., automatic recovery after transient overload (transparent mode) or persistent fault indication until host MCU intervention (latched mode). The minimum RESET pulse width is 1.5 μs.
What is the bandwidth and gain accuracy of the INA200AIDR at full temperature range?
The INA200AIDR has a bandwidth of 500 kHz (CLOAD = 5 pF) and a guaranteed gain accuracy of ±2% over –40°C to +125°C. Total output error-including gain error, offset drift, and CMR effects-is specified at ±3.5% maximum across the same temperature range. These parameters are measured under recommended operating conditions (VS = 12 V, VCM = 12 V) and define performance boundaries for real-world design margining.
Can the INA200AIDR be used in bidirectional current sensing applications?
Yes, the INA200AIDR supports bidirectional current sensing through its –16 V to +80 V common-mode range and ability to operate with VIN+ below VIN− (i.e., negative VSENSE). When combined with appropriate external resistor dividers on CMPIN and proper biasing of the comparator input, it can detect overcurrent in both directions-commonly implemented in regenerative braking circuits and dual-quadrant motor drives. Figure 30 in the official datasheet details such a configuration.
INA200AIDR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Current Monitor
- Sensing Method:
- High-Side
- Accuracy:
- ±3.5%
- Voltage - Input:
- -16V ~ 80V
- Current - Output:
- -
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
INA200AIDR FAQ
1.How can I place an order for INA200AIDR through Aetrix?
Please submit a Request for Quotation (RFQ) for INA200AIDR 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 INA200AIDR reliable?
The price and inventory of INA200AIDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for INA200AIDR is usually 5 days.
3.What payment methods are accepted for INA200AIDR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for INA200AIDR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for INA200AIDR?
INA200AIDR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your INA200AIDR 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 INA200AIDR?
For technical support, including INA200AIDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your INA200AIDR requirements.
6.How does Aetrix verify that INA200AIDR is sourced from the original manufacturer or authorized distributors?
All INA200AIDR 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 INA200AIDR meets industry standards.
7.What is the process for return or replacement of INA200AIDR?
All INA200AIDR units undergo pre-shipment inspection (PSI). If there is an issue with INA200AIDR, 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 INA200AIDR part is unused and in its original packaging.
Return procedure for INA200AIDR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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