DC
Source
1.8 nF
+
±
1.8 nF
ENBB
OUTA
VDD
OUTB
Signal
Generator
ENBA
INA
GND
INB
1
3
7
6
Noninverting
Inverting
Noninverting
VDD
4
8
2
Inverting
5
Oscilloscope
EVM Setup and Operation
11
SLVUB27 – March 2017
Copyright © 2017, Texas Instruments Incorporated
UCC27423-4-5-Q1 EVM User’s Guide
4
EVM Setup and Operation
This section describes the functionality and operation of the UCC27423-4-5-Q1 EVM. For the electrical
characteristics of the device, refer to
UCC2742x-Q1 Dual 4-A High-Speed Low-Side MOSFET Drivers
.
4.1
Test Equipment
The test equipment includes:
DC Power Supply —
DC power supply capable of providing at least 4 V
Signal Generator —
Digital signal generator capable of producing at least one single ended CMOS type
signal for PWM input (ENB input optional)
Oscilloscope —
Oscilloscope with at least four channels of analog type capable of 100-MHz bandwidth
with high-impedance scope probes capable of handling 50 V
Voltmeter —
Digital voltmeter capable of monitoring input DC voltages, or other nodes around the EVM
(the voltmeter can be omitted if the DC power supply monitors its own voltage and current levels)
Output Load —
External output load such as a 1.8-nF capacitor
4.2
Recommended Test Setup and Operating Conditions
shows the EVM test setup.
lists the recommended operating conditions. The default
connection of the enable pins is connected to ground.
NOTE:
Remove all jumpers when testing the EVM.
Figure 12. Recommended Test Setup