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Texas Instruments INA186A5IDCKT
- Part No.:
- INA186A5IDCKT
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 6-TSSOP, SC-88, SOT-363
- Datasheet:
-
INA186A5IDCKT.pdf
- Description:
- IC CURR SENSE 1 CIRCUIT SC70-6
- Quantity:
- Payment:
- Shipping:
Inventory:150
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Product details
Overview
INA186A5IDCKT from Texas Instruments is a bidirectional, zero-drift current-sense amplifier with 500 V/V fixed gain, –0.2 V to +40 V common-mode input range, ±50 µV max offset voltage, and 48 µA typical quiescent current. It enables precision microamp-level current monitoring in battery-powered consumer electronics and power supply units.
For engineers reviewing the INA186A5IDCKT datasheet, INA186A5IDCKT pinout, INA186A5IDCKT application, or INA186A5IDCKT equivalent, this page delivers verified specifications, SC70-6 package details, bidirectional sensing capability with REF pin support, and real-world selection guidance for high-accuracy, low-power current measurement designs.
Technical Context
The INA186A5IDCKT uses a capacitively coupled front-end architecture to achieve 120 dB minimum CMRR and reject dc common-mode shifts up to ±40 V independent of its 1.7–5.5 V supply. Its zero-drift design maintains ±0.5 µV/°C offset drift and ±1% gain error across –40°C to +125°C.
This SC70-6 device integrates an ENABLE pin (active-high) and REF pin-both present in DCK packaging-to support low-power shutdown (10 nA IQDIS) and bidirectional current sensing via externally applied reference voltage. Input bias current is 0.5 nA (typ), enabling accurate measurement with high-value shunt resistors.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain | 500 V/V - sets full-scale output at 500× sensed differential voltage; supports sub-millivolt shunt drops |
| Common-mode range | –0.2 V to +40 V - allows direct high-side sensing on 36-V rails without level-shifting |
| Offset voltage | ±50 µV max - enables accurate current measurement down to ~1 µA with 100 Ω shunt |
| Quiescent current | 48 µA typ - permits continuous monitoring in always-on battery systems with minimal drain |
| CMRR | 120 dB min - ensures stable output despite bus voltage transients or ground bounce |
| Bandwidth | 27 kHz - sufficient for DC–10 kHz current monitoring in PSU and battery management |
| Supply voltage | 1.7 V to 5.5 V - compatible with single-cell Li-ion, 3.3 V logic, and USB-powered systems |
Pinout & Package
INA186A5IDCKT is housed in a 6-pin SC70 package (2.00 mm × 1.25 mm body), optimized for space-constrained portable applications. All pins are surface-mount, lead-free, and RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN+ | Analog input | Positive current-sense input; connects to bus side of shunt in high-side, load side in low-side |
| IN– | Analog input | Negative current-sense input; connects to load side of shunt in high-side, ground side in low-side |
| VS | Power supply | Single 1.7–5.5 V analog supply; powers internal amplifiers and enable logic |
| GND | Analog ground | Reference node for all analog signals; must be low-impedance connection to system ground |
| REF | Analog reference | Bidirectional offset control point; sets zero-current output voltage (e.g., VS/2 for ± sensing) |
| OUT | Analog output | Voltage-output stage; delivers GAIN × (IN+ − IN−) + VREF with rail-to-rail swing (GND +1 mV / VS −40 mV) |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional sensing | Enabled by external REF voltage; supports forward/reverse current detection in battery charge/discharge paths |
| Zero-drift architecture | ±0.5 µV/°C offset drift - maintains accuracy over temperature without calibration in embedded systems |
| Ultra-low input bias current | 0.5 nA typ - permits use of ≥1 kΩ shunts for µA-range measurements without signal attenuation |
| Enable-controlled shutdown | Reduces IQ to 10 nA; places OUT in high-Z state - ideal for periodic sampling in IoT sensor nodes |
| Rail-to-rail output | Swings to GND +1 mV and VS −40 mV - maximizes dynamic range on 1.8 V supplies for ADC compatibility |
Applications
| Smartphone Battery Management | USB-C Power Delivery Monitor |
|---|---|
|
Use Scenario: Real-time charging/discharging current tracking during fast-charge cycles and standby mode. IC Role / Device Role / Timing Role: Current-sense amplifier measuring voltage drop across 5–20 mΩ shunt in high-side configuration. Use Value: 500 V/V gain resolves 10 µV shunt drops, enabling ±1 mA resolution; 48 µA IQ extends battery life during background monitoring. |
Use Scenario: Accurate source/sink current reporting in USB-C PD controllers for compliance and thermal management. IC Role / Device Role / Timing Role: Bidirectional current monitor interfaced to MCU ADC, using REF = 1.65 V for ±2 A full-scale range. Use Value: ±50 µV offset ensures <1 mA measurement error at zero load; 120 dB CMRR rejects noise from switching regulators. |
| Merchant Server PSU OCP | Portable Medical Device Battery Test |
|
Use Scenario: Overcurrent protection and efficiency optimization in 12 V/48 V server power supplies. IC Role / Device Role / Timing Role: High-side current monitor feeding analog input of protection controller or digital power MCU. Use Value: –0.2 V to +40 V common-mode range accommodates 36 V bus with headroom; 27 kHz bandwidth captures transient faults. |
Use Scenario: Precision discharge profiling of Li-Po batteries in handheld diagnostic tools. IC Role / Device Role / Timing Role: Low-power current sensor operating from coin-cell supply, measuring µA–mA loads with 100 Ω shunt. Use Value: 0.5 nA input bias avoids loading high-resistance shunts; 1.7 V minimum supply enables operation down to end-of-life battery voltage. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar current-sense amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| INA219BIDR | I²C output, integrated 12-bit ADC, 16 V max VCM, 0.1% gain error, no REF pin | Digital-output, lower common-mode range, no bidirectional analog output | Select when system requires I²C interface and digital integration; not suitable for analog feedback loops or >16 V rails |
| MAX40086AUT+T | 500 V/V gain, SC70-6, 1.7–5.5 V supply, but no REF or ENABLE pins; 100 µV VOS max | Unidirectional only, higher offset, no shutdown mode | Choose for cost-sensitive unidirectional apps where enable and bidirectionality are unnecessary |
Compared with INA186A5IDCKT, INA219BIDR trades analog flexibility for digital convenience and tighter gain accuracy, while MAX40086AUT+T offers similar gain and package but lacks REF/ENABLE functionality-making INA186A5IDCKT the only option supporting true bidirectional analog sensing with ultra-low IQ shutdown in SC70.
Availability
INA186A5IDCKT is available at Aetrix Electronics and suitable for smartphone battery management, USB-C power delivery monitors, and merchant server PSU overcurrent protection requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for INA186A5IDCKT 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 INA186 family was designed specifically for high-accuracy, low-power current sensing in space-constrained portable and power supply applications-emphasizing zero-drift performance, wide common-mode tolerance, and flexible bidirectional operation.
FAQ
What is the maximum common-mode voltage supported by the INA186A5IDCKT?
The INA186A5IDCKT supports a common-mode input voltage range from –0.2 V to +40 V, independent of its 1.7–5.5 V supply voltage. This allows direct high-side sensing on 36-V bus rails without external level-shifting circuitry, making it suitable for server PSUs and industrial power modules where bus voltage exceeds supply rails.
Does the INA186A5IDCKT support bidirectional current sensing?
Yes, the INA186A5IDCKT supports bidirectional current sensing via its dedicated REF pin, which accepts an external reference voltage (e.g., VS/2). When a positive differential voltage appears across the sense resistor, the output rises above VREF; a negative differential voltage pulls the output below VREF-enabling precise detection of charge and discharge currents in battery systems.
What is the purpose of the ENABLE pin on the INA186A5IDCKT?
The ENABLE pin on the INA186A5IDCKT provides active-high digital control: driving it to VS activates normal operation (48 µA IQ), while pulling it to GND disables the amplifier, reducing quiescent current to 10 nA and placing the OUT pin in high-impedance state. This feature is essential for battery-powered devices requiring periodic current sampling to minimize average power consumption.
Can the INA186A5IDCKT operate from a 1.8 V supply?
Yes, the INA186A5IDCKT operates from a minimum supply voltage of 1.7 V, making it fully functional at 1.8 V. At this voltage, it delivers rail-to-rail output swing (GND +1 mV / VS −40 mV), 27 kHz bandwidth, and maintains ±50 µV offset voltage-ideal for low-voltage microcontroller interfaces and energy-harvesting applications where supply headroom is limited.
What package type is used for the INA186A5IDCKT?
The INA186A5IDCKT uses the SC70-6 package (2.00 mm × 1.25 mm body size), a compact, surface-mount, lead-free, RoHS-compliant outline optimized for high-density portable electronics. This package includes all six functional pins: IN+, IN–, VS, GND, REF, and OUT-enabling full bidirectional sensing capability in minimal PCB area.
INA186A5IDCKT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- Zero-Drift
- Package/Case:
- 6-TSSOP, SC-88, SOT-363
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Amplifier Type:
- Current Sense
- Number of Circuits:
- 1
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 0.3V/µs
- Gain Bandwidth Product:
- 27 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 500 pA
- Voltage - Input Offset:
- 3 µV
- Current - Supply:
- 48µA
- Current - Output / Channel:
- -
- Voltage - Supply Span (Min):
- 1.7 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70-6
INA186A5IDCKT FAQ
1.How can I place an order for INA186A5IDCKT through Aetrix?
Please submit a Request for Quotation (RFQ) for INA186A5IDCKT 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 INA186A5IDCKT reliable?
The price and inventory of INA186A5IDCKT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for INA186A5IDCKT is usually 5 days.
3.What payment methods are accepted for INA186A5IDCKT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for INA186A5IDCKT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for INA186A5IDCKT?
INA186A5IDCKT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your INA186A5IDCKT 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 INA186A5IDCKT?
For technical support, including INA186A5IDCKT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your INA186A5IDCKT requirements.
6.How does Aetrix verify that INA186A5IDCKT is sourced from the original manufacturer or authorized distributors?
All INA186A5IDCKT 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 INA186A5IDCKT meets industry standards.
7.What is the process for return or replacement of INA186A5IDCKT?
All INA186A5IDCKT units undergo pre-shipment inspection (PSI). If there is an issue with INA186A5IDCKT, 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 INA186A5IDCKT part is unused and in its original packaging.
Return procedure for INA186A5IDCKT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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