Si8252

􀂄 Single-Chip, Flash-based digital power controller
􀁺` Supports isolated and non-isolated applications
􀁺` Enables new system capabilities such as:
- Adaptive dead-time control for higher efficiency
- Nonlinear control for faster transient response
- Self diagnostics for higher reliability
- Full PMBus command set implementation for system connectivity
􀂄 Highly integrated control solution:
􀁺` High-speed digital hardware control loop
􀁺` In-system programmable supervisory processor
􀁺` Programmable system protection functions
􀁺` Hardware cycle-by-cycle current limiting and OCP
􀁺` External clock and frame synchronization inputs
􀁺` Performs system management functions such as external power supply sequencing and fan control/monitoring
􀂄 In-system Flash programmable
􀁺` Flash can also be used as NV memory for data storage
􀂄 Low cost, comprehensive development tool kit includes:
􀁺` Graphical, easy-to-use systemdesign tools
􀁺` Integrated development environment
􀁺` In-system, on-line debugger
􀁺` Turnkey isolated 35 W digital half-bridge target board
􀂄 Typical Applications
􀁺` Isolated and non-isolated DC/DC converters
􀁺` AC/DC converters
􀂄 Fully Pb-free and ROHS compliant packages
􀁺` 32-pin LQFP
􀁺` 28-pin 5 x 5 mm QFN
􀂄 Temp Range: 40 to +125 ºC

Si8250/1/2 provides all control and protection functions necessary to implement highly intelligent, fast response power delivery and management control systems for isolated and non-isolated power supplies. On-board processing capability enables intelligent control optimization for improved system performance and new capabilities such as serial connectivity via the PMBus or on-board UART. The Si8250/1/2 family is in-system Flash programmable enabling control and protection parameters such as system regulation and protection settings, start-up and shutdown modes, loop response, and modulation timing to be readily modified. The built-in high-speed control path provides loop updates every 100nS and provides pulse-by-pulse current limiting and over-current protection even while the internal CPU is disabled.

The Si825x family is supported by the Si8250DK development kit, which contains everything required to develop and program power supply applications with the Si825x family of digital controllers.