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See Technical Specifications

ISO7221BDR

CMOS interface circuit

Manufacturer:

Texas Instruments
Mfr.Part #:

ISO7221BDR
Datasheet:

ISO7221BDR Datasheet (PDF)
Rating:

Catalog
Integrated isolated power:

No
Isolation rating:

Basic
Number of channels:

2
EDA/CAD Models:

Request Free CAD Models for ISO7221BDR

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ISO7221BDR General Description

The ISO7221BDR is a dual-channel digital isolator manufactured by Texas Instruments. It provides galvanic isolation between two separate circuits while transmitting digital signals. With a wide operating voltage range of 3V to 5.5V, it can accommodate various electronic systems. The device offers high data rate capabilities, up to 100 Mbps, enabling rapid communication between isolated sections of a circuit. Its robust design ensures reliable performance in harsh industrial environments, with high noise immunity and resistance to electromagnetic interference (EMI). The ISO7221BDR features reinforced insulation, meeting international safety standards such as UL, CSA, and VDE, making it suitable for applications requiring stringent isolation requirements. Additionally, it integrates internal thermal shutdown protection, enhancing its reliability and safety in operation. The device comes in a small outline package (SOIC) for easy integration onto circuit boards, offering convenience in design and assembly processes.

Key Features

The ISO7221BDR is a digital isolator with two isolated channels

It provides galvanic isolation to protect sensitive circuits from voltage spikes

With a wide operating temperature range, high-speed data transfer, and low power consumption, it's suitable for various industrial applications

Application

The ISO7221BDR is commonly used in applications requiring signal isolation, such as in industrial automation, motor control, and power delivery systems

It provides galvanic isolation, protecting sensitive circuitry from high-voltage transients and reducing noise interference

Additionally, it facilitates communication between components with different ground potentials, enhancing system safety and reliability

Specifications

Rating	Catalog	Integrated isolated power	No
Isolation rating	Basic	Number of channels	2
Forward/reverse channels	1 forward / 1 reverse	Default output	High
Data rate (max) (MBps)	5	Surge isolation voltage (VIOSM) (VPK)	4000
Transient isolation voltage (VIOTM) (VPK)	4000	Withstand isolation voltage (VISO) (Vrms)	2500
CMTI (min) (V/µs)	15000	Operating temperature range (°C)	-40 to 125
Supply voltage (max) (V)	5	Supply voltage (min) (V)	3.3
Propagation delay time (typ) (µs)	0.055	Current consumption per channel (DC) (typ) (mA)	4.3
Current consumption per channel (1 Mbps) (typ) (mA)	5	Creepage (min) (mm)	4
Clearance (min) (mm)	4