LP3906 Smart Power Reference Design - 4 outputs
Description
The LP3906 Smart Power Board provides a complete: multirail solution for FPGAs: Microprocessors: or any other systems requiring multiple voltages: special power sequencing: and boot management. This solution utilizes the Texas Instruments LP3906 Power Management Unit and an 8 bit microcontroller to manage the features of the PMU. There are more than 400:000 combinations of initial voltage values for the output voltages: this solution can provide them all regardless of the chip hard-coded startup values. An RS-232 port and Windows application are also provided to simplify evaluation of the solution using a PC; however: this is not required for a final system implementation.LP3906 Smart Power Board Key Features
Features
- Utilizes the Texas Instruments LP3906 Power Management Unit and the low cost Freescale 8-bit microcontroller Solution provides user control over all default voltage startup values: boot control (reset lines: enable lines: etc): order and time sequencing of rails. Power down sequencing is also possible with modifications to the firmware. Utilizes LP3906 GPIOs and / or MCU GPIO for boot control. Power-on Reset Peripheral Reset Control of reset polarity and drive type (open drain" like: push-pull) Board also provides jumpers to allow insertion for current monitoring of loads or input. The control values stored in the MCU flash can be easily modified for FPGAs: DSPs: other processors: and any other multi-rail devices without changing the firmware which speeds time to market.LP3906 Device Special Features Compatible with advanced applications processors and FPGAs 2 LDOs for powering Internal processor functions and I/Os High speed serial interface for independent control of device functions and settings Precision internal reference Thermal overload protection Current overload protection 24-lead 5 × 4 × 0.8 mm LLP package Software Programmable Regulators"
Applications
Product Categories
- Power management