Topology | Full-Bridge Converter symmetrical isolated |
IC revision | D |
This reference design uses the UCC3895 Phase-Shifted Full Bridge controller to implement a high efficiency, 120VAC input to 44Vdc up to 8A output. The power supply is set up to be constant voltage-constant current. The voltage and current are set by fixed resistor values and could be set by micro-processor in the actual product. The design is biased by a low-cost BJT Flyback using the UCC28720 PWM controller.
120Vac input, 44Vdc @ 2-8A output
92% efficiency achieved @ 8AHigh-side Gate Drive Tranformers used for lowest cost implementation.Low-cost BJT flyback used for design biasFlexible setting of Voltage and Current levels by fixed resistor values or micro-processor in real design
Order Code | Datasheet | Simulation | Downloads | Status | Product series | VIN | VOut1 (V) | IOut1 (A) | Vaux (V) | fswitch (kHz) | L (mH) | NPRI : NSEC : NAUX | ISAT (mA) | VT (V (AC)) | L (mm) | W (mm) | H (mm) | Mount | Size | Samples | |
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750314445 | SPEC | 4 files | Active i| Production is active. Expected lifetime: >10 years. | MID-OLTI Offline Flyback Transformers for Texas Instruments | 85 - 132 V (AC) | 5 | 0.2 | 18 | 100 | 2.5 | 12:1:3 | 135 | 2000 | 9.14 | 9.78 | 10.54 | SMT | EP7 |
Samples |
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Order Code | Datasheet | Simulation | Downloads | Status | Product series | VIN | VOut1 (V) | IOut1 (A) | Vaux (V) | fswitch (kHz) | L (mH) | NPRI : NSEC : NAUX | ISAT (mA) | VT (V (AC)) | L (mm) | W (mm) | H (mm) | Mount | Size | Samples |
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