company blog about Original TI ISO7721QDRQ1 Automotive Dual-Channel Digital Isolator

Original TI ISO7721QDRQ1 Automotive Dual-Channel Digital Isolator

Shenzhen Mingjiada Electronics Co., Ltd. — Long-term stock availability of TI (ISO7721QDRQ1) dual-channel digital isolators. Below are the product details for the ISO7721QDRQ1:

ISO7721QDRQ1 — Basic Information:
Model: ISO7721QDRQ1
Package: SOIC-8
Type: Digital isolator
Product Description: ISO7721QDRQ1 — An automotive-grade, dual-channel, 1/1, enhanced digital isolator with excellent EMC performance.

ISO7721QDRQ1 Specifications:
Technology: Capacitive coupling
Type: General purpose
Isolated power supply: None
Number of channels: 2
Input - Side 1/Side 2: 1/1
Channel Type: Unidirectional
Voltage - Isolation: 3000Vrms
Common-Mode Transient Immunity (Minimum): 85kV/µs
Data Rate: 100Mbps
Propagation Delay tpLH / tpHL (Maximum): 16ns, 16ns
Pulse Width Distortion (Maximum): 4.9ns
Rise/Fall Time (Typical): 1.8ns, 1.9ns
Voltage - Supply: 2.25V to 5.5V
Operating Temperature: -40°C to 125°C
Mounting Type: Surface Mount
Package/Case: 8-SOIC (0.154", 3.90mm Width)
Supplier Device Package: 8-SOIC

ISO7721QDRQ1 is a high-performance dual-channel digital isolator providing a 3000VRMS isolation rating (D-package) compliant with UL 1577 standards. The ISO7721QDRQ1 features enhanced insulation ratings compliant with VDE, CSA, TUV, and CQC standards.

While isolating complementary metal-oxide-semiconductor (CMOS) or low-voltage complementary metal-oxide-semiconductor (LVCMOS) digital I/O, the ISO7721QDRQ1 delivers high electromagnetic immunity and low emissions alongside low power consumption. The logic input and output buffers for each isolated channel are separated by a double-capacitance silicon dioxide (SiO₂) insulated gate.

ISO7721QDRQ1 features two reverse channels. In the event of input power or signal loss, devices without the suffix “F” default to a high output level, while those with the suffix “F” default to a low output level.

When employed with an isolated power supply, the ISO7721QDRQ1 helps prevent damage to sensitive circuits from data buses such as CAN and LIN. Through innovative chip design and routing techniques, the ISO7721QDRQ1 exhibits significantly enhanced electromagnetic compatibility, mitigating system-level ESD, EFT, and surge issues while meeting radiated standards.

ISO7721QDRQ1 Product Features:
100Mbps data rate
Robust isolation barrier:
Projected lifetime exceeding 30 years at 1.5kVRMS operating voltage
Isolation rating up to 5000VRMS
Surge capability up to 12.8kV
CMTI typical value: ±100kV/µs
Wide supply voltage range: 2.25V to 5.5V
2.25V to 5.5V level shifting
Default output high level (ISO772x) and low level (ISO772xF) options
Low power consumption, typical current per channel at 1Mbps: 1.7mA
Low propagation delay: 11ns (typical)
Excellent electromagnetic compatibility (EMC)
System-level ESD, EFT, and surge immunity
±8kV IEC 61000-4-2 contact discharge protection across isolation barrier
Low electromagnetic interference (EMI)

ISO7721QDRQ1 Applications:
Hybrid, electric, and powertrain systems (EV/HEV)
– Battery management systems (BMS)
– On-board chargers
– Traction inverters
– DC/DC converters
– Inverter and motor control

ISO7721QDRQ1 is a high-performance dual-channel digital isolator meeting automotive application requirements. The device features two reverse-parallel channels (1/1 configuration), with logic input and output buffers for each isolated channel separated by a dual-capacitance silicon dioxide (SiO₂) barrier.

【Mingjiada Electronics】offers long-term supply of TI's (ISO7721QDRQ1) high-speed, enhanced dual-channel digital isolators. For further product information or pricing enquiries regarding the ISO7721QDRQ1, please visit Mingjiada Electronics' official website (https://www.integrated-ic.com/) to view supply details.