ISO1500DBQ The Texas Instruments ISO1500DBQ is a 1-Mbps, half-duplex, isolated RS-485/RS-422 transceiver offering 3-kVrms isolation in an ultra-small SSOP package. It provides robust protection and high common-mode transient immunity.
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ISO1500DBQ

Available from 1 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments ISO1500DBQ is a 1-Mbps, half-duplex, isolated RS-485/RS-422 transceiver offering 3-kVrms isolation in an ultra-small SSOP package. It provides robust protection and high common-mode transient immunity.
✓ Total Stock: 2,505 pcs

ISO1500DBQ Available from 1 distributor

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ISO1500DBQ Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
SVHC Present

ISO1500DBQ Description

Short technical summary and product information.

The Texas Instruments ISO1500DBQ is a high-performance, isolated RS-485 and RS-422 transceiver designed for robust communication in demanding environments. It supports half-duplex operation at data rates up to 1 Mbps, with a basic isolation rating of 3 kVrms.

 

This transceiver features a wide operating voltage range, with a logic-side supply (VCC1) from 1.71V to 5.5V and a bus-side supply (VCC2) from 4.5V to 5.5V. It offers significant protection with ±16 kV HBM ESD on bus I/O and high common-mode transient immunity (CMTI) of 85 kV/µs minimum.

 

The ISO1500DBQ is housed in an ultra-small SSOP (DBQ-16) package, measuring 4.9 mm × 6 mm with a package area of 29.4 mm². It operates across an extended temperature range of -40°C to +125°C, making it suitable for various industrial applications. Safety certifications include DIN VDE V 0884-11, UL 1577, IEC 60950-1, IEC 62368-1, IEC 61010-1, CQC, TUV, and CSA.

 

Designed for reliability, it includes failsafe receivers for bus open, short, and idle conditions, along with glitch-free power-up and power-down for hot-plugging. The 1/8 unit load allows up to 256 nodes on the bus.

ISO1500DBQ Quick Information

Product Type: Isolated RS-485/RS-422 Transceiver
Canonical Name: ISO1500DBQ 1-Mbps, Half-Duplex, 3-kVrms Isolated RS-485/RS-422 Transceiver
Subcategory: Isolated RS-485/RS-422 Transceiver

ISO1500DBQ Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

ISO1500DBQ Features

  • 1-Mbps isolated RS-485/RS-422 transceiver.
  • 3-kVrms basic isolation rating.
  • ±16 kV HBM ESD protection on bus I/O.
  • Wide -40°C to 125°C operating temperature.
  • Ultra-small SSOP package for space savings.

ISO1500DBQ Applications

  • Industrial automation systems.
  • Motor control applications.
  • Building automation networks.
  • Remote sensor interfaces.

ISO1500DBQ FAQs

5 frequently asked questions generated from this part’s specifications.
What is the operating temperature range for the ISO1500DBQ?

The device operates reliably from -40°C to 125°C.

What package type does the ISO1500DBQ use?

It is housed in a 4.9 mm × 6 mm SSOP (DBQ) surface-mount package.

What is the logic-side supply voltage range?

The logic-side supply voltage ranges from 1.71 V to 5.5 V.

How much common-mode transient immunity does this isolator provide?

It offers a minimum of 85 kV/µs and a typical value of 100 kV/µs.

What is the maximum data rate supported by this component?

The maximum data rate is 1 Mbps.

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