8-pin (DSG) package image

INA381A3IDSGR ACTIVE

26-V, 350-kHz current sense amplifier with integrated over-current comparator

ACTIVE custom-reels CUSTOM Custom reel may be available

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Additional package qty | Carrier options These products are exactly the same but come in a different carrier type

INA381A3IDSGT ACTIVE custom-reels CUSTOM Custom reel may be available
Package qty | Carrier 250 | SMALL T&R
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Qty | Price 1ku | +

Quality information

Rating Catalog
RoHS Yes
REACH Yes
Lead finish / Ball material NIPDAU
MSL rating / Peak reflow Level-1-260C-UNLIM
Quality, reliability
& packaging information

Information included:

  • RoHS
  • REACH
  • Device marking
  • Lead finish / Ball material
  • MSL rating / Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring
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Additional manufacturing information

Information included:

  • Fab location
  • Assembly location
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Export classification

*For reference only

  • US ECCN: EAR99

Packaging information

Package | Pins WSON (DSG) | 8
Operating temperature range (°C) -40 to 125
Package qty | Carrier 3,000 | LARGE T&R

Features for the INA381

  • Common-mode input range: –0.2 V to +26 V
  • High accuracy amplifier:
    • Offset voltage at TA = 25°C
      • 500 µV (maximum) at VCM = 12 V
      • 150 µV (maximum) at VCM = 0 V
    • Offset voltage drift: 1 µV/°C (maximum)
    • Gain error: 1% (maximum) at 25°C
    • Gain error drift: 20 ppm/°C (maximum)
  • Available amplifier gains:
    • INA381A1: 20 V/V
    • INA381A2: 50 V/V
    • INA381A3: 100 V/V
    • INA381A4: 200 V/V
  • Open-drain comparator:
    • Hysteresis: 50 mV
    • Propagation delay: 400 ns (typ)
    • Alert threshold set through external reference voltage
    • Supports transparent and latching modes
  • Packages: VSSOP-10 and WSON-8

Description for the INA381

The INA381 includes both a 26-V common-mode, current-sensing amplifier and a high-speed comparator. This device detects overcurrent conditions by measuring the voltage developed across a current-shunt resistor and comparing that voltage to a user-defined threshold limit set by the comparator reference pin. The current-shunt monitor can measure differential voltage signals on common-mode voltages that vary from –0.2 V up to 26 V, independent of the supply voltage.

The open-drain alert output can be configured to operate in two modes: transparent or latched. In transparent mode, the output status follows the input state. In latched mode, the alert output is cleared only when the latch is reset. The standalone comparator large-signal alert response time is less than 2 µs, allowing for quick detection of overcurrent events. The total system overcurrent protection response time provided by the INA381 is less than 10 µs.

This device operates from a single 2.7-V to 5.5-V supply, drawing a maximum supply current of 350 µA. The device is specified over an operating temperature range of –40°C to +125°C, and is available in 8-pin WSON and 10-pin VSSOP packages.

 

 

Pricing

Qty Price
+

Additional package qty | Carrier options These products are exactly the same but come in a different carrier type

INA381A3IDSGT ACTIVE custom-reels CUSTOM Custom reel may be available
Package qty | Carrier 250 | SMALL T&R
Inventory
Qty | Price 1ku | +

Carrier options

You can choose different carrier options based on the quantity of parts, including full reel, custom reel, cut tape, tube or tray.

A custom reel is a continuous length of cut tape from one reel to maintain lot- and date-code traceability, built to the exact quantity requested. Following industry standards, a brass shim connects an 18-inch leader and trailer on both sides of the cut tape for direct feeding into automated assembly machines. TI includes a reeling fee for custom reel orders.

Cut tape is a length of tape cut from a reel. TI may fulfill orders using multiple strips of cut tapes or boxes to satisfy the quantity requested.

TI often ships tube or tray devices inside a box or in the tube or tray, depending on inventory availability. We pack all tapes, tubes or sample boxes according to internal electrostatic discharge and moisture-sensitivity-level protection requirements.

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Lot and date code selection may be available

Add a quantity to your cart and begin the checkout process to view the options available to select lot or date codes from existing inventory.

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