Silicon Laboratories' power solutions leverage our superior mixed-signal expertise to deliver solutions that enhance power system performance, flexibility and reliability while reducing system size and cost. With proprietary isolation, current sensing, digital control and high-voltage technologies, Silicon Laboratories’ innovative power product portfolio delivers exactly what the next generation of power hardware architectures need.
Digital Isolators
Fastest, most integrated one to
four channel digital isolators
 Si841x Single channel
Si842x Dual channel
Si843x Triple channel
Si844x Quad channel
| AC Current Sensors
Unidirectional AC current sensors
Si850x Single output
Si851x Dual "ping-pong" output
Si85xx AC Current Sensor Evaluation Kit
Isolation and Power Solutions
Dual channel isolated gate drivers
Si8230/1/3/4 High-side/low-side
Si8232/5 Dual low-side
| Power over Ethernet
Si3400/01 PD interface and switching regulator
Si3460 PSE interface with integrated dc-dc controller
Complete PoE Solutions
Digital Power Controllers
Fully switched mode power supply controllers
Si825x 32 kB Flash; 6 DPWM outputs
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Featured Products:
 Si823x ISOdrivers
The Si823x isolated driver family combines two independent, isolated drivers into a single package. The Si8230/1/3/4 are high-side/low-side drivers, and the Si8232/5 are dual low-side drivers. Versions with peak output currents of 0.5 A (Si8230/1/2) and 4.0 A (Si8233/4/5) are available. All drivers operate with a maximum supply voltage of 24 V.
Product Information
Summary
Features
Documentation
Product Matrix
 Si3460 PoE PSE Interface
The Si3460 is the industry’s first dual-function, single-port Power over Ethernet (PoE) controller with an integrated dc-dc controller for power sourcing equipment (PSE). By combining these two functions, the Si3460 dramatically simplifies development efforts, reduces system costs and eliminates specification compliance challenges for designers of a broad range of emerging PoE applications such as in home gateways, set-top boxes, cable modems, DSL modems and Voice over IP systems.
Product Information
Summary
Features
Documentation
Complete PoE Solutions
 AC Current Sensors
The Si85xx products are unidirectional ac current sensors available in full-scale ranges of 5, 10 and 20 A. Si85xx products are ideal upgrades for older current-sensing technologies offering size, performance and cost advantages over current transformers, Hall effect devices, DCR circuits and other approaches. With its 4x4 mm footprint and 1 mm height, the Si85xx is among the smallest current sensors available.
Product Information
Summary
Features
Documentation
Product Matrix
 Digital Isolators
Silicon Laboratories' family of digital isolators is the industry’s highest performance, easiest-to-use, lowest cost 2500 VRMS digital isolator product family. The patent-pending Si84xx uses chip-scale transformers fabricated in a standard, 100 percent CMOS to deliver a highly integrated one to four channel isolator that is one-third the size of competing opto-coupler solutions reducing the bill-of-material cost by as much as 50 percent.
Documentation
Si843x Data Sheet
Si844x Data Sheet
Learn More: Introducing the Digital Isolator Family
Digital Power Solutions Guide
Silicon Laboratories Announces Industry's Fastest, Most Integrated Four Channel Digital Isolators |
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