LCSC supplier Chipanalog Microelectronics has released the CA-IS3211 single-channel isolated gate driver. It is fully compatible with traditional optocoupler gate drivers and offers higher reliability and lifespan compared to traditional optocouplers.
CA-IS3211 Isolated Gate Driver Overview
The CA-IS3211 is an optocoupler-compatible single-channel isolated gate driver, designed for driving MOSFET, IGBT and SiC devices. The isolation level reaches 5.7kVRMS, and the chip can provide 5A sourcing and 6A injecting peak current capabilities.
The CA-IS3211’s supply voltage range up to 30V allows for the use of bipolar supplies, efficiently driving IGBTs and SiC power FETs. The chip’s performance highlights include high common-mode transient immunity (CMTI), low propagation delay, and low pulse width distortion. Strict process control ensures the chip’s consistency.
The input stage features an analog diode, which offers better long-term reliability and aging characteristics than conventional optocoupler-isolated gate driver LEDs. The high performance and reliability of the chip make it suitable for various applications, including industrial power supplies, photovoltaic inverters, vehicle chargers, DC motor control, and automotive air conditioning and heating systems.
The CA-IS3211 is capable of driving power tubes on both the high-voltage and low-voltage sides. It is fully compatible with traditional optocoupler gate drivers and significantly enhances driving performance.
CA-IS3211 Isolated Gate Driver Characteristics
- 5.7kVRMS single-channel isolated gate driver with optocoupler input
- Output peak current: 5A source/6A sink
- Maximum 30V output drive supply voltage
- 8V(B) or 12V(C)VCC undervoltage lockout threshold
- Rail-to-rail output
- 70ns (typ) propagation delay
- 25ns (max) part-to-part delay matching
- 35ns (max) pulse width distortion
- 150kV/μs (min) common-mode transient immunity (CMTI)
- Isolation barrier life is greater than 40 years
- The input stage has a maximum reverse withstand voltage of 7V and supports interlocking
- Wide body SOIC6-WB/SOIC8-WB package, air gap and creepage distance greater than 8.5mm
- Operating junction temperature range TJ: -40°C to 150°C
CA-IS3211 isolated gate driver application block diagram
Gate Driver Application
- Industrial motor control drives
- Industrial Uninterruptible Power Supply (UPS)
- Solar inverters
- Charging pile
- Energy storage converter
Chipanalog CA-IS3211 Isolated Gate Driver Selection Table
| Part Number | Source
/Sink Current Max. (A) |
UVLO
(V) |
Output
Method |
Operating
Voltage (V) |
Instantaneous Isolation
Voltage Max. (Vrms) |
CMTI
(kV/µs) |
Surge
Isolation Voltage Max (KVpk) |
HBM/
CDM (KV) |
Operating Temperature
Range |
Package |
| CA-IS3211VBJ | 5/6 | 8 | Single Vout Pin | 10-30 | 8000 | 150 | 8 | 4/2 | -40-150 | SOIC6-WB |
| CA-IS3211VCJ | 5/6 | 12 | Single Vout Pin | 14-30 | 8000 | 150 | 8 | 4/2 | -40-150 | SOIC6-WB |
| CA-IS3211VBG | 5/6 | 8 | Single Vout Pin | 10-30 | 8000 | 150 | 8 | 4/2 | -40-150 | SOIC8-WB |
| CA-IS3211VCG | 5/6 | 12 | Single Vout Pin | 14-30 | 8000 | 150 | 8 | 4/2 | -40-150 | SOIC8-WB |
| CA-IS3211SBG | 5/6 | 8 | Split Output | 10-30 | 8000 | 150 | 8 | 4/2 | -40-150 | SOIC8-WB |
| CA-IS3211SCG | 5/6 | 12 | Split Output | 14-30 | 8000 | 150 | 8 | 4/2 | -40-150 | SOIC8-WB |
| CA-IS3211VCU | 5/6 | 12 | Single Vout Pin | 14-30 | 5300 | 150 | 8 | 4/2 | -40-150 | DUB8 |
Conclusion
In summary, the Chipanalog CA-IS3211 isolated gate driver is an innovative and reliable solution for driving power semiconductors such as MOSFETs, IGBTs, and SiC devices. With its high isolation voltage of 5.7kVRMS, robust 5A/6A peak current sourcing/sinking capabilities, and a wide supply voltage range up to 30V, the CA-IS3211 is well-suited for a variety of applications in industrial, renewable energy, and automotive sectors. Its compatibility with traditional optocoupler gate drivers, enhanced driving performance, and superior reliability make it a strong contender in the market.
The CA-IS3211’s advanced features, such as high common-mode transient immunity (CMTI), low propagation delay, and strict process control for consistency, further solidify its position as a high-performance component. Additionally, its wide operating temperature range and various package options provide designers with the flexibility needed for diverse applications. The CA-IS3211 is not just a product; it represents a significant step forward in the evolution of power electronics and a testament to Chipanalog Microelectronics’ commitment to innovation and quality.
Founded in 2012 in Shenzhen, which borders Hong Kong, LCSC Electronics aims to assist engineers and enterprises in purchasing qualified electronic parts for samples and production purposes. After years of continuous effort, LCSC has become a global distributor with more than 4 million registered customers worldwide.
LCSC owns 130,000 square meters of intelligent warehouses that stock more than 500,000 parts SKUs from 2,600 manufacturers. LCSC is an authorized distributor of Chipanalog. Select Chipanalog’s isolated gate driver and other products on LCSC.
