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Name: ISO7740DBQ
Brand: Texas Instruments
SKU: ISO7740DBQ
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Any Feature, including a modified Existing Feature, that is not an Existing Feature.

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Texas Instruments ISO7740DBQ

Part No.:: ISO7740DBQ

Manufacturer:: Texas Instruments

Package:: 16-SSOP (0.154, 3.90mm Width)

Datasheet:: ISO7740DBQ.pdf

Description:: DGTL ISO 5000VRMS 4CH GP 16SSOP

In Stock:: 2089

Quantity:: Add To Cart

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ISO7740DBQ Specifications

Packaging:
Tube
Series:
-
ProductStatus:
Active
Technology:
Capacitive Coupling
Type:
General Purpose
IsolatedPower:
No
NumberofChannels:
4
Inputs-Side1/Side2:
4/0
ChannelType:
Unidirectional
Voltage-Isolation:
5000Vrms
CommonModeTransientImmunity(Min):
85kV/µs
DataRate:
100Mbps
PropagationDelaytpLH/tpHL(Max):
16ns, 16ns
PulseWidthDistortion(Max):
4.9ns
Rise/FallTime(Typ):
2.4ns, 2.4ns
Voltage-Supply:
2.25V ~ 5.5V
OperatingTemperature:
-55°C ~ 125°C
MountingType:
Surface Mount

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ISO7740DBQ information

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ISO7740DBQ Typical application Circuitry

ISO7740DBQ

A high-performance, four-channel digital isolator with three channels for forward and one for reverse direction, the ISO7740DBQ. Produced by Texas Instruments, this IC provides the critical function of transferring digital signals across isolation barriers, thereby ensuring reliable data transmission in noise-sensitive or harsh industrial environments.

Key Features of ISO7740DBQ:

1. Quad-Channel Isolation: This feature lends versatility to the ISO7740DBQ, enabling it to isolate multiple digital signals independently.

2. High-Speed Operation: With data rates of up to 100 Mbps, the IC can efficiently serve in high-speed digital communication interfaces.

3. Robust Isolation: In accordance with the end equipment standards UL 1577, IEC 60950-1, and IEC 62368-1, it offers reinforced isolation rated up to 5000 VRMS for 1 minute.

4. Low Power Consumption: Its low power dissipation is especially advantageous in power-critical applications.

5. Wide Operating Temperature Range: The device can function effectively in a broad temperature range from -40°C to +125°C.

Applications of ISO7740DBQ:

The ISO7740DBQ finds use in a variety of applications, including industrial automation, medical equipment, electric vehicle systems, power supplies, and any other application where reliable digital signal isolation is crucial.

Sample Circuit Connection - SPI Interface Isolation:

Consider a situation where we use the ISO7740DBQ for isolating an SPI (Serial Peripheral Interface) bus. Here's how you could connect it:

- Pin 1 (VCCI): Connect this pin to the supply voltage on the SPI master side.

- Pin 2-4 (IN1-IN3): Connect these pins to the SPI signals (SCLK, MOSI, and SS) on the SPI master side.

- Pin 5 (GNDI): Connect this pin to the ground on the SPI master side.

- Pin 6 (VCCO): Connect this pin to the supply voltage on the SPI slave side.

- Pin 7-9 (OUT1-OUT3): Connect these pins to the corresponding SPI signals (SCLK, MOSI, and SS) on the SPI slave side.

- Pin 10 (GNDO): Connect this pin to the ground on the SPI slave side.

- Pin 11-12 (IN4, OUT4): Connect these pins to the SPI MISO signal line, IN4 on the SPI slave side, and OUT4 on the SPI master side.

Design Considerations:

1. Power Supply Decoupling: Placing decoupling capacitors close to the VCCI and VCCO pins can significantly mitigate noise and enhance the performance of the isolator.

2. Data Rate: Keep ISO7740DBQ's maximum rate of 100 Mbps in mind while designing your SPI or other digital interfaces.

3. Ground Separation: Preserve the integrity of isolation by maintaining separate grounds (GNDI and GNDO) on either side of the isolator.

4. Isolation Requirements: Evaluate your design for isolation requirements. While ISO7740DBQ provides strong isolation, the overall isolation performance can be influenced by your system's design and layout.

To sum up, the ISO7740DBQ is an efficient, high-speed, quad-channel digital isolator, suitable for various applications that require effective digital signal isolation. Its robust isolation capabilities, high-speed performance, and low power consumption make it an excellent choice for isolating digital interfaces like SPI, I2C, and others.

ISO7740DBQ FAQ

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6. What is the process for return or replacement of ISO7740DBQ?

All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment. If there is something wrong with the ISO7740DBQ we delivered, we will accept the replacement or return of the ISO7740DBQ only when all of the below conditions are fulfilled:

(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.

(2)We are informed of the defect described above within 90 days after the delivery of ISO7740DBQ.

(3)The PartNo is unused and only in the original unpacked packaging.

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(1)Inform us within 90 days

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