Overview
The ISO7721-Q1, specifically the ISO7721QDRQ1, is a high-performance, dual-channel digital isolator produced by Texas Instruments. This device is designed to provide robust isolation and high electromagnetic immunity, making it suitable for various demanding applications, particularly in the automotive and industrial sectors. The ISO7721-Q1 features a wide supply range, low power consumption, and high data rates, ensuring reliable and efficient data transmission across isolated circuits.
Key Specifications
| Parameter | Value | Unit | Package |
|---|---|---|---|
| Isolation Rating | 5000 (DW, DWV), 3000 (D) | VRMS | DW, DWV, D |
| Data Rate | 100 | Mbps | - |
| Supply Voltage Range | 2.25 to 5.5 | VDC | - |
| Propagation Delay | 11 | ns (typical) | - |
| Power Consumption per Channel | 1.7 | mA (typical at 1 Mbps) | - |
| Operating Temperature Range | -40 to 125 | °C | - |
| Package Options | Wide-SOIC (DW-16, DWV-8), Narrow-SOIC (D-8) | - | DW, DWV, D |
| ESD Protection | ±8 kV IEC 61000-4-2 contact discharge | - | - |
| Safety Certifications | VDE, UL 1577, IEC 62368-1, IEC 61010-1, IEC 60601-1, GB 4943.1 | - | - |
Key Features
- High-performance, dual-channel digital isolator with up to 5000 VRMS isolation rating
- 100 Mbps data rate and low propagation delay of 11 ns (typical)
- Wide supply range: 2.25 V to 5.5 V and 2.25-V to 5.5-V level translation
- Low power consumption, typical 1.7 mA per channel at 1 Mbps
- Robust electromagnetic compatibility (EMC) and system-level ESD, EFT, and surge immunity
- ±8 kV IEC 61000-4-2 contact discharge protection across the isolation barrier
- Default output High (ISO772x) and Low (ISO772xF) options
- AEC-Q100 qualified with device temperature grade 1: –40°C to +125°C ambient operating temperature range
- Safety-related certifications including VDE, UL 1577, IEC 62368-1, IEC 61010-1, IEC 60601-1, and GB 4943.1
Applications
- Hybrid, electric, and power train systems (EV/HEV): Battery management system (BMS), on-board charger, traction inverter, DC/DC converter, inverter and motor control
- Automotive applications: Qualified for use in automotive systems with AEC-Q100 certification
- Industrial systems: Used to improve ESD, EFT, and surge immunity, and to isolate CMOS or LVCMOS digital I/Os
- Isolated power supplies and data buses such as CAN and LIN to prevent noise currents from damaging sensitive circuitry
Q & A
- What is the isolation rating of the ISO7721-Q1?
The ISO7721-Q1 has an isolation rating of up to 5000 VRMS for DW and DWV packages and 3000 VRMS for the D package.
- What is the data rate of the ISO7721-Q1?
The data rate of the ISO7721-Q1 is 100 Mbps.
- What is the supply voltage range for the ISO7721-Q1?
The supply voltage range for the ISO7721-Q1 is 2.25 V to 5.5 V.
- What are the package options for the ISO7721-Q1?
The ISO7721-Q1 is available in Wide-SOIC (DW-16, DWV-8) and Narrow-SOIC (D-8) packages.
- What safety certifications does the ISO7721-Q1 have?
The ISO7721-Q1 has safety certifications including VDE, UL 1577, IEC 62368-1, IEC 61010-1, IEC 60601-1, and GB 4943.1.
- What is the operating temperature range of the ISO7721-Q1?
The operating temperature range of the ISO7721-Q1 is –40°C to +125°C.
- How does the ISO7721-Q1 protect against ESD and other electromagnetic disturbances?
The ISO7721-Q1 provides ±8 kV IEC 61000-4-2 contact discharge protection and robust system-level ESD, EFT, and surge immunity.
- What are some typical applications of the ISO7721-Q1?
The ISO7721-Q1 is used in hybrid, electric, and power train systems, automotive applications, industrial systems, and isolated power supplies.
- What is the power consumption of the ISO7721-Q1 per channel?
The typical power consumption of the ISO7721-Q1 per channel is 1.7 mA at 1 Mbps.
- Is the ISO7721-Q1 AEC-Q100 qualified?
Yes, the ISO7721-Q1 is AEC-Q100 qualified with a device temperature grade 1: –40°C to +125°C ambient operating temperature range.
