Texas Instruments LM51770EVM-HV Evaluation Module
Texas Instruments LM51770EVM-HV Evaluation Module is designed to quickly and easily demonstrate the LM51770. The LM51770 4-Switch Buck-Boost Controller provides a regulated output voltage regardless of whether the input voltage is higher, equal to, or lower than the adjusted output voltage.
The TI LM51770EVM-HV Evaluation Module is configured to function from an input voltage range of 36V to 48V and deliver a regulated 48V output with a load current of up to 4A. The evaluation module operates at a switching frequency of 380kHz. Most settings of the device can be easily adjusted or set via jumpers, such as operation mode (PSM or fPWM), bias supply, and external clock synchronization.
Features
- Wide input voltage range
- Ultra high (>95%) peak power conversion efficiency
- Adjustable output voltage using a feedback resistor divider
- Optional synchronization (SYNC)
- Easy configuration of the current monitor or limiter
- Programmable input undervoltage lockout (UVLO) threshold and hysteresis
- Output constant voltage (CV) and constant current (CC) options
- Setting of configuration resistor RCFG through DIP switches
Applications
- Battery backup unit (BBU)
- DC/DC modules
Kit Contents
- LM51770EVM-HV PCB
- EVM Disclaimer Read Me
Associated Controller
Texas Instruments LM51770x/LM51770x-Q1 Buck-Boost Controllers
Offers regulated output voltage if input voltage is higher, equal, or lower than the output voltage.
Typical Connection Diagram
Current Limit Setup
Inilathala: 2025-10-28
| Na-update: 2025-11-03