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Isolated Error Amplifier with High Reliability
The NSi3190 is a high-reliability isolated error amplifier based on capacitance isolation technology. The NSi3190 is ideal for applications such as linear feedback power supplies. Compared with the traditional feedback scheme based on photoelectric couplers and shunt regulators, the NSi3190 scheme has improved performance in transient response, power density and stability. The NSi3190 can support voltage type output and current type output, which can perfectly replace the traditional photoelectric coupler scheme. When selecting current-mode output, the current transfer coefficient can be set by the external resistance value between EAOUT 2 and VDD 1 or VREG 1.
Product Features
• 0.5% initial accuracy
• Isolation voltage up to 3000Vrms
• Bandwidth: 400kHz
• Power supply voltage range:
VDD 1: 4V to 20V
VDD 2: 4V to 20V
• Reference voltage: 1.225V
• High CMTI: 100kV/μs
• Compatible with voltage-type output and current-type output
• Low power consumption
• Wide operation temperature range: -40℃ ~125°C
• Max. junction temperature: 150℃
• RoHS compliant package: SSOP-16
Safety Certificate
• UL1577 qualified: 3kVrms for 1 min.
• CQC qualified: Conform to GB4943.1 -2011
• CSA qualified: Components conform to 5A
• VDE qualified: DIN VDE V 0884-11 (VDE V0884-11): 2017-01
Application
• DOSA compliant module
• UPS
• Voltage monitor
• Power supply system
• Inverter
Functional Block Diagram
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