ISO7221CQDRQ1 - TI

The pictures are for reference only, and the specific specifications can be found in the product manual.

Part No

ISO7221CQDRQ1
Manufacturer

TI
ChipWorker Part#

CW9849040
Category

Interface Isolator, Digital Isolator
Package

SOIC-8
Description

Digital Isolator Logic 2CH 25Mbps Automotive 8Pin SOIC T/R
Documentation

Datasheet

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ISO7221CQDRQ1 Specifications

Attribute	Attribute Value

Part Number	ISO7221CQDRQ1
Manufacturer	TI
ChipWorker Part#	CW9849040
Category	Interface Isolator, Digital Isolator
Documentation	Datasheet
Mounting Style	Surface Mount
Number of Pins	8 Pin
Case/Package	SOIC-8
Rise/Fall Time	1 ns
Number of Channels	2 Channel
Isolation Voltage	4000 Vpk
Fall Time (Max)	2 ns
Fall Time (Max)	2 ns
Operating Temperature (Max)	125 ℃
Operating Temperature (Min)	-40 ℃
Supply Voltage	3V ~ 5.5V
Supply Voltage (Max)	5 V
Supply Voltage (Min)	3.3 V
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Operating Temperature	-40℃ ~ 125℃
Product Lifecycle Status	Active
Packaging	Tape & Reel (TR)
RoHS	RoHS Compliant
Lead-Free Status	Lead Free
ECCN Code	EAR99

Product Description

The ISO7220 and ISO7221 are dual-channel digital isolators. To facilitate PCB layout, the channels are oriented in the same direction in the ISO7220 and in opposite directions in the ISO7221. These devices have a logic input and output buffer separated by TI’s silicon-dioxide (SiO2) isolation barrier, providing galvanic isolation of up to 4000 V. Used in conjunction with isolated power supplies, these devices block high voltage, isolate grounds, and prevent noise currents on a data bus or other circuits from entering the local ground and interfering with or damaging sensitive circuitry.
A binary input signal is conditioned, translated to a balanced signal, then differentiated by the capacitive isolation barrier. Across the isolation barrier, a differential comparator receives the logic transition information, then sets or resets a flip-flop and the output circuit accordingly. A periodic update pulse is sent across the barrier to ensure the proper dc level of the output. If this dc-refresh pulse is not received every 4 µs, the input is assumed to be unpowered or not being actively driven, and the failsafe circuit drives the output to a logic high state.
The small capacitance and resulting time constant provide fast operation with signaling rates available from 0 Mbps (dc) to 25 Mbps.The signaling rate of a line is the number of voltage transitions that are made per second expressed in the units bps (bits per second).The A-option and C-option devices have TTL input thresholds and a noise filter at the input that prevents transient pulses from being passed to the output of the device.
These devices require two supply voltages of 3.3 V, 5 V, or any combination. All inputs are 5-V tolerant when supplied from a 3.3-V supply and all outputs are 4-mA CMOS.
These devices are characterized for operation over the ambient temperature range of –40°C to 125°C.

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