UCD9224 Specialized Power ICs and Modules 1.75VDC to 1.85VDC/2.45VDC to 2.55VDC Output Evaluation Board
The is an evaluation module designed as a two independent single phase POL voltage rails using the UCD9224 digital controller and the PTD08D210W power train module. The voltage rails are pre configured to operate from an input voltage source of 12V ±10% and produce output voltages of 2.5V Vout1 and 1.2V Vout2, each of which can source up to 10A. The UCD7242 Dual Synchronous Buck Power Driver, the foundation of the PTD08D210W, combines and optimizes the MOSFET driver and the high and low side power MOSFETs for both voltage rails along with fault and monitoring circuitry that integrates with the digital controller. If a designer wants to monitor or modify the evaluation module using a computer, a separate USB Interface Adapter evaluation module is recommended. The USB to GPIO Adapter serves as an interface adapter or a bridge between a host PC IBM compatible and one or multiple slave devices via a standard type-A to mini-B USB cable.
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- Fully configurable multioutput and multi phase non isolated DC/DC PWM controller
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- Controls up to 2 voltage rails and up to 4 phases
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- Supports switching frequencies Up to 2MHz with 250ps duty cycle resolution
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- Up to 1mV closed loop resolution
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- Supports multiple soft start and soft stop configurations including pre bias start up
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- Supports voltage tracking, margining and sequencing
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- Supports current and temperature balancing for multi phase power stages
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- Supports phase adding/shedding for multi phase power stages
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- Sync In/Out pins align DPWM clocks between multiple UCD92xx devices
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- 12bit digital monitoring of power supply parameters
It is important to operate this EVM within the input voltage range of 4.75V to 12V and the output voltage range of 0.7V to 3.6V. Exceeding the specified input range may cause damage to the EVM.