Features and Electrical Performance
3
SNVU543A – November 2016 – Revised December 2016
Copyright © 2016, Texas Instruments Incorporated
LM5170-Q1 EVM User Guide
1
Features and Electrical Performance
The EVM supports the following features and performance capabilities:
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Input Operating Voltage Ranges
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The 48VDC-Port 6 V to 75 V, in the Buck Mode
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The 12VDC-Port 3 V to 48 V, in the Boost Mode
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Output Voltage Regulation (With the Onboard Outer Voltage Loop Control Activated)
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14.5-V Output Voltage at the 12VDC-Port, in the Buck Mode
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50.5-V Output Voltage at the 48VDC-Port, in the Boost Mode
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Operating Current
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60-Adc Maximum from or into the 12VDC-Port
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Typical 1% Current Regulation Accuracy
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Typical 1% Current Monitor Accuracy
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Switching Frequency:
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Standalone Fsw = 100 kHz
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Able to Synchronize to an External Clock from 80 kHz to 120 kHz.
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Maximum Efficiency: >97%
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OVP Threshold
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75 V at the 48VDC-Port
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22 V at the 12VDC-Port
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Synchronous Rectifier Diode Emulation Function Preventing Negative Current
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Other Convenient Features
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Optional Onboard Wide-VIN™ LM5118-Q1 Buck-Boost Converter as the +10-V Supply
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Onboard Ultra Low IQ TPS709-Q1 LDOs for +3.3-V and +5.0-V Bias Voltages for Convenient EVM
Configurations and for Biasing the External MCU through Headers.
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Onboard LM26LV Temperature Sensors Monitoring Local Temperatures of Power MOSFETs, With
Optional Overtemperature Shutdown and LED Indicator.
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LED indicators of Buck and Boost Operating Modes.
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Optional Channel Current Shunt AC Filters for Accurate DVM Reading (Unpopulated).
The electrical performance of the EVM is show in
.
shows the simplified EVM schematic.