This website uses cookies. By using this site, you consent to the use of cookies. For more information, please take a look at our Privacy Policy.

Images are for reference only See Product Specifications

TI ISO1540D

Name: ISO1540D
Rating: 4.5 (10 reviews)

2.5-kVrms, isolated bidirectional clock, bidirectional I2C isolator

Brands: Texas Instruments

Mfr.Part #: ISO1540D

Datasheet: ISO1540D Datasheet (PDF)

Package/Case: SOIC (D)-8

RoHS Status:

Stock Condition: 5659 pcs, New Original

Product Type: Digital Isolators

Warranty: 1 Year Ovaga Warranty - Find Out More

Pricing

*All prices are in USD

Qty	Unit Price	Ext Price
1	$2.026	$2.026
10	$1.812	$18.120
30	$1.679	$50.370
100	$1.480	$148.000
500	$1.419	$709.500
1000	$1.392	$1392.000

In Stock:5659 PCS

- +

Quick Quote

Please submit RFQ for ISO1540D or email to us: Email: [email protected], we will contact you within 12 hours.

Quantity^*

Email^*

Contact Name^*

Company

Remark

ISO1540D General Description

The ISO1540 and ISO1541 devices are low-power, bidirectional isolators that are compatible with I²C interfaces. These devices have logic input and output buffers that are separated by Texas Instruments Capacitive Isolation technology using a silicon dioxide (SiO₂) barrier. When used with isolated power supplies, these devices block high voltages, isolate grounds, and prevent noise currents from entering the local ground and interfering with or damaging sensitive circuitry.

This isolation technology provides for function, performance, size, and power consumption advantages when compared to optocouplers. The ISO1540 and ISO1541 devices enable a complete isolated I²C interface to be implemented within a small form factor.

The ISO1540 has two isolated bidirectional channels for clock and data lines while the ISO1541 has a bidirectional data and a unidirectional clock channel. The ISO1541 is useful in applications that have a single controller while the ISO1540 is suitable for multi-controller applications. For applications where clock stretching by the target is possible, the ISO1540 device should be used.

Isolated bidirectional communication is accomplished within these devices by offsetting the low-level output voltage on side 1 to a value greater than the high-level input voltage on side 1, thus preventing an internal logic latch that otherwise would occur with standard digital isolators.

Features

Isolated bidirectional, I²C compatible, communication
Supports up to 1-MHz operation
3-V to 5.5-V supply range
Open-drain outputs With 3.5-mA Side 1 and 35-mA Side 2 sink current capability
–40°C to +125°C operating temperature
±50-kV/µs transient immunity (Typical)
HBM ESD protection of 4 kV on all pins; 8 kV on bus pins
Safety-related certifications:
- 4242-V_PK isolation per DIN EN IEC 60747-17 (VDE 0884-17)
- 2500-V_RMS isolation for 1 minute per UL 1577
- CSA approval per IEC 62368-1 end equipment standard
- CQC basic insulation per GB4943.1-2011

Specifications

Parameter	Value	Parameter	Value
Rating	Catalog	Isolation rating	Basic
Number of channels	2	Serial data	Bidirectional
Serial clock	Bidirectional	Data rate (max) (MBps)	1
Working isolation voltage (VIOWM) (Vrms)	400	Surge isolation voltage (VIOSM) (VPK)	4000
Transient isolation voltage (VIOTM) (VPK)	4242	Withstand isolation voltage (VISO) (Vrms)	2500
CMTI (min) (kV/µs)	25	Supply voltage (max) (V)	5.5
Supply voltage (min) (V)	3

Shipping

	Ship Fee	Lead Time
DHL	$20.00-$40.00 (0.50 KG)	2-5 days
Fedex	$20.00-$40.00 (0.50 KG)	2-5 days
UPS	$20.00-$40.00 (0.50 KG)	2-5 days
TNT	$20.00-$40.00 (0.50 KG)	2-5 days
EMS	$20.00-$40.00 (0.50 KG)	2-5 days
REGISTERED AIR MAIL	$20.00-$40.00 (0.50 KG)	2-5 days

Processing Time：Shipping fee depend on different zone and country.

Payment

Terms of payment		Hand Fee
	Wire Transfer	charge US$30.00 banking fee.
	Paypal	charge 4.0% service fee.
	Credit Card	charge 3.5% service fee.
	Western Union	charge US.00 banking fee.
	Money Gram	charge US$0.00 banking fee.

Guarantees

1.The electronic components you purchase include 365 Days Warranty, We guarantee product quality.

2.If some of the items you received aren't of perfect quality, we would resiponsibly arrange your refund or replacement. But the items must remain their orginal condition.

Packing

Step1 :Product
Step2 :Vacuum packaging
Step3 :Anti-static bag
Step4 :Individual packaging
Step5 :Packaging boxes
Step6 :bar-code shipping tag

All the products will packing in anti-staticbag. Ship with ESD antistatic protection.

Outside ESD packing’s lable will use ourcompany’s information: Part Mumber, Brand and Quantity.

We will inspect all the goods before shipment,ensure all the products at good condition and ensure the parts are new originalmatch datasheet.

After all the goods are ensure no problems afterpacking, we will packing safely and send by global express. It exhibitsexcellent puncture and tear resistance along with good seal integrity.

Part points

The ISO1540D chip is a digital isolator designed to provide galvanic isolation between two circuits. It utilizes capacitive isolation technology and offers multiple channels for reliable data transfer. The chip is suitable for a wide range of applications, including industrial automation, medical equipment, and power supplies. It is a compact and cost-effective solution, providing enhanced safety and performance in isolated communication systems.
Features

The ISO1540D is a digital isolator with unidirectional channels that provide signal isolation between the input and output. It has a wide temperature range from -55°C to +125°C, a high data rate of up to 100 Mbps, and supports IEC 61000-4-x ESD protection. It also has low power consumption, small package size, and complies with various safety standards.
Pinout

The ISO1540D is a high-speed, robust isolated RS-485 transceiver. It has a pin count of 8 pins and is used for bidirectional communication between two isolated sides of an RS-485 interface. The device provides galvanic isolation between the transmit and receive sides, and it is compatible with 3.3V and 5V systems.
Manufacturer

Texas Instruments is the manufacturer of the ISO1540D. It is a semiconductor manufacturing company specializing in designing and producing integrated circuits and electronic components.
Application Field

The ISO1540D is a digital isolator commonly used in various application areas, including industrial automation, automotive, medical devices, and power management. It provides isolation and signal level shifting between different voltage domains, enhancing safety and protecting sensitive components in systems.
Package

The ISO1540D chip comes in a SOIC (Small Outline Integrated Circuit) package with 8 pins. Its form is Dual-In-Line and the size is determined by the SOIC package dimensions, typically around 6mm x 5.3mm x 1.75mm.