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SI8920BC-AP

Name: SI8920BC-AP
Rating: 4.7 (12 reviews)

AUTOMOTIVE ISOLATED ANALOG AMPLI

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規格

Part Status	Not For New Designs
Type	Isolation
Applications	Inverters, Power Supplies, UPS
Mounting Type	Surface Mount
Grade	Automotive
Qualification	AEC-Q100
Package	8-SMD, Gull Wing
Supplier Device Package	8-DIP Gull Wing
Packaging	Tube

概述

Description

SI8920BC-AP is a two-channel digital isolator used to shuttle logic signals across a galvanic isolation barrier. It provides independent supply pins on the two sides (Vcc1 on the logic side and Vcc2 on the isolated side) and is suitable for isolating microcontroller interfaces (SPI, I2C, UART) from high-voltage or noisy circuitry (motor drives, power supplies, inverters).
Key points:
- 2 independent channels with galvanic isolation
- Separate Vcc1 and Vcc2 supplies; typically 3.3–5 V logic levels
- Reinforced isolation rating (high-voltage isolation) for safety and noise immunity
- Small package (8-pin, RoHS-compliant, AP suffix indicates packaging/version)
- Used for protecting low-voltage controllers while transferring digital signals
Typical specs (vary by exact variant): low propagation delay, good common-mode transient immunity, operates over a wide temperature range.
For exact electrical specs, pinout, and package details, consult the SI8920BC-AP datasheet from the manufacturer.

Package

8-pin SOIC (SOP-8) surface-mount package.

Pinout

- Pin count: 8 pins (SOIC/8 package).
- Function: Dual isolated gate driver. It provides two isolated outputs (_OUT1_, _OUT2_) to drive two power transistors (IGBT/MOSFET) with separate input-side and output-side supplies: IN1, IN2, VCC1, GND1, VCC2, GND2, OUT1, OUT2.

Manufacturer

- Manufacturer: Silicon Laboratories, Inc. (Silicon Labs).
- Kind of company: A fabless semiconductor company that designs and markets mixed-signal ICs, microcontrollers, sensors, wireless and related semiconductor solutions.

Application

Typical applications for SI8920BC-AP (high-level overview):
- Galvanic isolation and signal/gate drive in power electronics
- Isolated DC-DC converters and power supplies
- Motor drives and inverters
- Automotive and industrial control systems
- LED driver circuits
- Telecom/network equipment requiring HV isolation