Si8931

DATA SHEET Si8931 and Si8932 Isolated Analog Amplifier Applications Industrial, HEV and renewable energy inverters AC, brushless, and DC motor controls and drives Variable speed motor control in white goods Isolated switch mode and UPS power supplies General industrial data acquisition and sensor interface Automotive on-board chargers, battery management systems, and charging stations Features 0 to 2.5 V nominal input voltage Low signal delay: 1 µs Typical input offset: 0.16 mV Typical gain error: ±0.06% Excellent drift specifications - 0.75 µV/°C offset drift - 6 ppm/°C typical gain drift Typical nonlinearity: 0.01% Typical SNR: 76 dB High common-mode transient immunity: 75 kV/µs Automotive-grade OPNs available - AEC-Q100 qualification - AIAG-compliant PPAP documentation support - IMDS and CAMDS listing support Compact packages - 8-pin wide body stretched SOIC - 8-pin narrow body SOIC –40 to 125 °C Safety Approvals UL 1577 recognized - Up to 5000 kVRMS for 1 minute CSA certification conformity - 62368-1 (reinforced insulation) VDE certification conformity (pending) - 60747-17 (reinforced insulation) CQC certification approval - GB4943.1 VDDA VIN NC GNDA CMOS Isolation Si8931 OSC PWM Transmitter PWM Receiver VDDB AOP AON GNDB Figure 1. Si8931 Block Diagram Si8932 VDDA VIN NC GNDA OSC PWM Transmitter CMOS Isolation PWM Receiver VDDB AO GNDB GNDB Figure 2. Si8932 Block Diagram Description The Si8931 and Si8932 galvanicall...