TWR-SMPS-LVFB NXP

Freescale Semiconductor, Inc. Document Number: TWRSMPSLVFBUG Users Guide Rev. 0, 02/2015 TWR-SMPS-LVFB User s Guide Contents 1 Overview 1. Overview . 1 2. Reference documents . 3 The Low-Voltage Full-Bridge DC-DC Switch Mode Power 3. Hardware features 3 Supply Tower board (TWR-SMPS-LVFB) is a peripheral 4. Hardware connection description 7 5. Mechanical form factor . 14 Tower System Module used as a development platform that 6. Revision history 14 enables rapid prototyping of various power-control topologies using Freescale MCUs. A variety of power-control topologies such as peak current mode control, average current mode control and voltage mode control can be implemented using the MC56Fx TWR-MC56F8xxx and KVx TWR-KVx MCU Tower System MCU / peripheral board. The dynamic load circuit module is also included in the system to test the performance of power-control topologies and demo software, by connecting a load resistor at the output. The TWR-SMPS-LVFB module features: 20 30 VDC power supply voltage input (see Section 3.2, Electrical characteristics for details) Output current up to 8 A Power supply reverse polarity protection circuitry Full-bridge topology Synchronous rectification for secondary side 2015 Freescale Semiconductor, Inc. All rights reserved. Overview Primary side full-bridge current sensing Input DC-bus voltage sensing Output voltage sensing Low-voltage on-board power supplies Two user LEDs, power-on LED and six PWM LED diodes A block diagram for the TWR-SMPS-LVFB is shown in Figure 1. Figure 1. TWR-SMPS-LVFB block diagram TWR-SMPS-LVFB Users Guide, Rev. 0, 02/2015 2 Freescale Semiconductor, Inc.