Description
5
SLUUBX3B – June 2019 – Revised November 2019
Copyright © 2019, Texas Instruments Incorporated
UCC25640EVM-020 Evaluation Module
2
Description
2.1
Typical Applications
•
SMPS power supply for TV
•
Industrial AC-DC adapters
•
Power tools
•
Medical power supply
•
Multi-functional printer
•
Enterprise and cinema projector
•
PC power supply
•
Gaming console power supply
•
Lighting
2.2
Features
•
Hybrid hysteretic controlled LLC resonant half-bridge DC-DC power conversion
•
DC line Input from 365 VDC to 410 VDC
•
AC Input voltage from 85 VDC to 265 VAC
•
Regulated 12-VDC typical output
•
Regulated 9.75-VDC low power mode output
•
Full-load power of 180 W, or full-load current of 15 A
•
High efficiency
•
Optimized low power features enable extremely low standby power
•
Advanced burst mode with burst soft-on and soft-off for minimized audible noise
•
Adaptive dead-time
•
X-capacitor discharge
•
Over temperature, output over voltage, and three level over current protections
•
Test points to facilitate device and topology evaluation
2.3
Using the EVM with UCC256402
•
Replace U4 with UCC256402
•
Replace R37 with 124k
Ω
•
Connect TP1 to TP14
•
Disconnect the AC voltage source
2.4
Using the EVM with UCC256403
UCC25640EVM-020 comes populated with UCC256404. To use this EVM with UCC256403:
•
Replace U4 with UCC256403
•
Remove R5 and R28
•
Replace R37 with 124 k
Ω
•
Remove C25
•
Replace R57 with 1.07k
Ω
•
Replace C46 with 2.2nF
•
Replace C36 with 33 nF
•
Connect a 15 V DC source to TP6
•
Disconnect the AC voltage source