Overview
The ISOW7821DWER is a high-performance, dual-channel reinforced digital isolator produced by Texas Instruments. This device integrates a high-efficiency DC-DC converter with an on-chip transformer, eliminating the need for a separate isolated power supply in space-constrained designs. It is designed to provide robust isolation and high electromagnetic immunity, making it suitable for a variety of applications where signal integrity and safety are critical.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package | 16-pin SOIC wide-body (SOIC-WB) | |
| Operating Temperature Range | -40 to 125 | °C |
| Input Supply Voltage | 3 to 5.5 | V |
| Output Voltage | 5 V or 3.3 V | V |
| Output Power | Up to 0.65 W | |
| Available Load Current | ≥ 130 mA (5 V to 5 V), ≥ 75 mA (3.3 V to 3.3 V) | mA |
| Isolation Voltage | 5000 Vrms | |
| Common Mode Transient Immunity (Min) | 100 kV/µs | |
| Data Rate | 100 Mbps | |
| Propagation Delay (Typ) | 13 ns | ns |
| RoHS Status | ROHS3 Compliant |
Key Features
- Integrated high-efficiency DC-DC converter with on-chip transformer
- Robust isolation barrier with >100-year projected lifetime at 1 kVrms working voltage and up to 10 kVpk surge capability
- Up to 5000 Vrms isolation rating and ±100 kV/µs minimum CMTI
- 3-V to 5.5-V wide input supply range and regulated 5-V or 3.3-V output
- Soft-start to limit inrush current, overload and short-circuit protection, and thermal shutdown
- Default output: high and low options
- Low propagation delay: 13 ns typ (5-V supply)
- Robust electromagnetic compatibility (EMC) and system-level ESD, EFT, and surge immunity
- ±8 kV IEC 61000-4-2 contact discharge protection across isolation barrier
- Low emissions and extended temperature range: –40°C to +125°C
- Safety-related certifications including UL 1577, DIN VDE V 0884-11:2017-01, and others
Applications
- Industrial Automation
- Motor Control
- Grid Infrastructure
- Medical Equipment
- Test and Measurement
Q & A
- What is the primary function of the ISOW7821DWER?
The ISOW7821DWER is a high-performance, dual-channel reinforced digital isolator with an integrated high-efficiency DC-DC converter, designed to provide robust isolation and power conversion in space-constrained designs.
- What are the key isolation specifications of the ISOW7821DWER?
The device offers up to 5000 Vrms isolation rating, >100-year projected lifetime at 1 kVrms working voltage, and up to 10 kVpk surge capability.
- What is the data rate supported by the ISOW7821DWER?
The ISOW7821DWER supports a data rate of up to 100 Mbps.
- What are the available output voltage configurations for the ISOW7821DWER?
The device can be configured for 5 V or 3.3 V output voltages.
- What is the maximum output power of the ISOW7821DWER?
The maximum output power is up to 0.65 W.
- Does the ISOW7821DWER have built-in protection features?
Yes, it includes soft-start to limit inrush current, overload and short-circuit protection, and thermal shutdown.
- What are the safety certifications for the ISOW7821DWER?
The device has certifications including UL 1577, DIN VDE V 0884-11:2017-01, CSA, CQC, and TUV according to various EN standards.
- What is the operating temperature range of the ISOW7821DWER?
The operating temperature range is from -40°C to +125°C.
- Is the ISOW7821DWER RoHS compliant?
Yes, the ISOW7821DWER is ROHS3 compliant.
- What are some typical applications for the ISOW7821DWER?
Typical applications include industrial automation, motor control, grid infrastructure, medical equipment, and test and measurement.
