5 Power Up and Power Down Procedure
5.1 Power Up
1. Before beginning the power up test procedure, verify the connections with
2. Enable supply #1, if the current on DMM1 is more than 0.25 mA and less than 0.8 mA, everything is set
correctly.
3. Enable function generator outputs channel-A and channel-B.
4. The following conditions should be present:
a. Stable pulse output on channel-1 and channel-2 in the oscilloscope, refer to
b. Frequency measurement should be 100 kHz, ±5 kHz or equal to the programmed function generator
frequency
c. DMM #1 should display around 4.6 mA, ±2 mA with the default load capacitance of 1.0 nF. For more
information about operating current, see the
UCC27624 30-V 5-A dual channel
.
5. Connect ENA_IN and ENB_IN test points to GND test point with jumpers. The pulse outputs on channel-1
and channel-2 will cease operation and the voltage level should be near ground.
Figure 5-1. Example Input and Output Waveforms
5.2 Power Down
Use the following steps to power down the EVM:
1. Disable function generator
2. Disable power supply #1
3. Disconnect cables and probes
Power Up and Power Down Procedure
6
Using the UCC27624EVM
SLUUCE4 – JUNE 2021
Copyright © 2021 Texas Instruments Incorporated
