AN323 - Input Filter Design - 3E POL Regulators

The 3E Digital products can be configured, controlled and monitored through a digital serial interface using the PMBus™ power management protocol. This application note provides information on how to design input filters for the 3E POL regulators.


AN322 - In-System Programming Guide – 3E Series Power Modules

This application note provides information on communicating with Flex 3E Series Digital Power Modules while they are already placed “in-system”. Specifically, we discuss what changes are available while the power output is enabled, referred to as Operation Changes. We also guide through designing your power system to support in-system configuration updates - allowing you to potentially configure parts without the need of ordering pre-configured products or using a contract manufacturer.


AN321 - Output Filter Impedance Design - 3E POL Regulators

The 3E Digital products can be configured, controlled and monitored through a digital serial interface using the PMBus™ power management protocol. This application note provides information on how to design the output filter impedance of 3E POL regulators.


AN320 - Snapshot Parameter Capture – 3E PoL Regulators

The snapshot function enables the user to read comprehensive information of device status and parameters via a single PMBus read transaction. The snapshot function also makes it possible to automatically capture the same parametric data in response to a pending fault, and store that data to Non-volatile Memory (NVM). This can be of great value when making a root cause analysis of a fault situation. 


AN319 - Repair and Rework Recommendations for Flex Power Modules

In case that a module needs to be replaced on the hosting board, recommended processes and guidelines described in this section should be applied. Instructions are listed after fundamental principles and recommendations for rework processes for power modules. 


AN318 - Parallel Operation - PKM  4817LNH

The PKM  4817LNH offers passive load sharing allowing multiple products to be connected in parallel. This feature is typically used to increase power output on the same rail, providing redundancy against a product failure, or distribute thermal heat over a larger board area. Paralleling may also aid in streamlining your Bill of Materials by replacing the need for separate products with higher power requirements.  


AN317 - LGA Design and Assembly Considerations

LGA (Land Grid Array) is a connection method with a grid of contact pads on the connection side of the PCB. The grid of contacts consists of pads without any pre-deposit of solder. Interconnection between an LGA module and a connecting PCB is achieved by printing solder paste on the connecting PCB which will melt during the reflow process and create a solder interconnection between the module and connecting PCB. 


AN314 - First and Second Generation 3E POL Regulators - A Comparison

This document provides an overview of the differences and compatibility between the first and second generation of 3E digital point-of-load (POL) regulators. This useful information applies both when considering the choice of regulator for a new design and when updating BMR450/451 with BMR462/463/464 in an existing design.


AN310 - Sequencing Configuration – 3E POL Regulators

The 3E Digital products can be configured, controlled and monitored through a digital serial interface using the PMBus™ power management protocol. This application note provides information on different methods for sequencing of the 3E POL regulators.


AN309 - Synchronization and Phase Spreading - 3E POL Regulators

In systems with multiple switching products, the switching phase between products may need a delay to reduce undesired effects in the system. This application note provides information on how to synchronize the 3E POL regulators and use phase spreading for optimized performance.


AN308 - Fault Spreading - 3E PoL Regulators

With the rising complexity and robustness requirements of many systems, the ability to monitor and control the power distribution has become increasingly more critical. This application note provides an introduction to the serial bus interface of the 3E Digital products and accessing the 3E products using a general purpose microcontroller.


AN307 - Parallel Operation with Load Sharing - 3E POL Regulators

The 3E Digital products can be configured, controlled and monitored through a digital serial interface using the PMBus™ power management protocol.
This application note provides information on how to parallel two or more 3E POL regulators.


AN306 - Optimizing Load Transient Response For ID & NLR Control Loops – 3E Series Power Modules

This application note provides information on optimizing load transient response performance on Flex 3E Series Digital Power Modules. This app note focuses on Point of Load products that use a digital PID control loop with an additional ‘Non-linear Response’ feature.


AN304 - Microcontroller Programming for 3E Digital Products

This application note provides an introduction to the serial bus interface of the 3E Digital products and accessing the 3E products using a general purpose microcontroller.


AN302 - PMBus Command Set - 3E Series Power Modules

Flex’s 3E Series modules are designed with state-of-the-art digital controllers. This provides the user with superior electrical performance and a broad capability to configure,
control and monitor the products in the engineering lab, in the factory, and in the field.

AN206 - Set-Up and Design of the Hold-Up Function with PIM4300

Telecom systems and many other applications require very low ohmic power distribution. To handle short circuits and other power supply interruptions, a hold-up function is included on the majority of the boards in a system.

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