SNVU820 February 2022 LM5149-Q1
Referencing the EVM connections described in Table 5-1, the recommended test setup to evaluate the LM5149-Q1EVM-400 is shown in Figure 5-1. Working at an ESD-protected workstation, make sure that any wrist straps, boot straps, or mats are connected and referencing the user to earth ground before handling the EVM.
Refer to the LM5149-Q1 data sheet, LM5149-Q1 Quickstart Calculator, and WEBENCH® Power Designer for additional guidance pertaining to component selection and controller operation.
LABEL | DESCRIPTION |
---|---|
VIN+ | Positive input voltage power and sense connection |
VIN– | Negative input voltage power and sense connection |
VOUT+ | Positive output voltage power and sense connection |
VOUT– | Negative output voltage power and sense connection |
LABEL | DESCRIPTION |
---|---|
GND | GND connection |
CNFG | Configuration input - tie to GND to disable AEF |
COMP | Error amplifier output |
FB | FB node |
VDDA | Bias supply connection for the analog circuits |
PFM | PFM/FPWM selection and Synchronization input |
GND | GND connection |
VCCX | Optional external VCC bias supply for higher efficiency |
BODE | 50-Ω injection point for loop response |
VOUT | Output voltage |
EN | ENABLE input – tie to GND to disable the device |
VCC | Bias supply connection for the gate drivers and AEF |
PGOOD | Power Good indicator |