SNOU219 November 2025
The green LED D2 illuminates when VDUT is supplied. VDUT must be supplied for normal operation of the TMP4719EVM as VDUT is used for TMP4719 device power. VDUT can be supplied via the on-board sub-regulator U7 or external power. See Section 2.4 for more details.
The yellow LED D4 illuminates when the ALERT pin is low. The red LED D5 illuminates when the T_CRIT pin is low. The default software configuration of the ALERT and T_CRIT pins are active-low, and the LEDs illuminate when the pins become active or "trip".
The green LED D6 is the MSP430F5528 status LED. Table 2-1 shows how the different modes of operation are displayed by the LED status.
| D6 LED STATUS | MSP430F5528 MODE OF OPERATION |
|---|---|
| Off | EVM is connected to EVM GUI |
| Blinking in bursts of 4 blinks | EVM is plugged into PC, not connected to EVM GUI |
| Steady blinking | Connected to USB power |