Texas Instruments LM5170-Q1 | Demoboard LM5170EVM-BIDIR

Description

The LM5170EVM-BIDIR Evaluation Module (EVM) is designed to showcase the LM5170-Q1 highperformance dual-channel bidirectional controller suitable for, but not limited to, the automotive 48-V to 12-V dual battery system applications.The EVM can be configured to achieve a bidirectional power converter in the form of either the currentsource or voltage source. The direction of power flow can be controlled either by an external commandsignal or by the on-board jumper. Through the onboard interface headers, the EVM can be operated by aDSP, an FPGA, an MCU, or other digital controllers. Two EVMs can be paralleled to make a 3 or 4phases interleaved converter for higher power. More EVMs can be paralleled for greater number ofphases. Many convenient jumper headers are also included for versatile configurations of the EVM.

Features

The EVM supports the following features and performance capabilities:

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

More information

• Datasheet
• IC product information