REF_600W_FBFB_XDPP1100
Reference design board 48V – 12V fully regulated isolated 1/4th brick module using digital control
The REF_600W_FBFB_XDPP1100 is a system solution for telecom isolated DC-DC power modules that achieves 96% peak efficiency in DOSA standard quarter brick form factors. This reference design introduces a secondary side digital control and hard switching full-bridge topology delivering 12 V/600W of output power. It operates across a wide range of input voltages (36 V - 72V). The achieved power density is 22 W/cm³ (360 W/in³), which is enabled by the use of the XDPP1100 digital controller, OptiMOS™ MOSFETs and an EiceDRIVER™ gate driver IC.
The XDPP1100 offers superior levels of integration and performance in a single-chip solution. The XDPP1100 device includes an optimized analog front end, multiple pre-programmed peripherals, a fast state-machine based control loop, and a microcontroller. This unique architecture enhances the performance of isolated DC-DC applications, reduces BOM size, and allows advanced control functions as well as customization, whilst providing the fastest time to market. The reference design on top of the XDPP1100 contains the following highlight products: OptiMOS™ 5 100 V (BSC050N10NS5), OptiMOS™ 6 40 V (BSC010N04LS6), and the EiceDRIVER™ dual-channel, functional isolated gate-driver IC, 2EDF7275K. Due to the high driving current, excellent common-mode rejection and fast signal propagation, 2EDF7275K is particularly well suited for driving medium- to high-voltage MOSFETs (CoolMOS™, OptiMOS™) in fast-switching power systems.
Summary of Features
- Digital controlled isolated brick converter
- Voltage mode control with flux balancing
- Fast line and load transient response
- PMBus™ and I2C communication
- Voltage mode control with transformer flux walking protection
- Best in class feed-forward response
- Supports active current sharing between multiple modules
- Smoother pre-bias start-up
- Output voltage accuracy +/-1% over full temperature range -40°C to 125°C
Benefits
- Configurable with GUI support
- Allows FW based customization
- Configurable output voltage
- Digital control increases overall reliability
- High power density and reduced BOM with component integration
- Pre-programmed control providing the fastest time-to-market
- Provides future proof optimal solution via PMBus™ adjustments
Potential Applications
- Isolated DC-DC brick module
- Telecom infrastructure
- Server motherboard
- 48 V Computing and datacenter SMPS
- Industrial 4.0
List of components:
- Digital power controller with PMBus interface
(XDPP1100-Q040) - OptiMOS™ 5 100 V power MOSFET
(BSC050N10NS5) - OptiMOS™ 6 40 V power MOSFET
(BSC010N04LS6) - Dual-channel, functional and reinforced isolated MOSFET gate-driver
(2EDF7275K)
