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UCC28950
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Category:ACDC- and -DCDC-power supply
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Product Name:Green phase-shifted full-bridge controller with synchronous rectification
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Manufacturers:TI
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Production Batch Number:11+
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Encapsulation:24TSSOP
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Stock Status:There is stock
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Stock Quantity:50000
- Minimum order quantity: 1
- Details:
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The UCC28950 Enhanced Phase Shift Controller in Texas Instruments' industry established standard UCCx895 Phase Shift with enhanced features to provide the best controller family in today's high-performance power systems for classroom efficiency. Implement the advanced UCC28950 with synchronous rectification output stage for active control of the full bridge control.
The ZVS programmable delay allowed by the primary-side signal ensures operation over a wide range of load currents and input voltages, while the load current naturally regulates the switching delay of the secondary-side synchronous rectifier, maximizing the efficiency of the overall system.
The UCC28950 also provides a variety of features, including on/off control of Burst Mode and dynamic simplified transition in and out of continuous current mode (DCM) operation, ensuring that the operation of zero voltage extends to light load management.
characteristic
- Enhanced wide range resonant zero-voltage switching (ZVS) functionality
- Direct synchronous rectification (SR) control
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Light load efficiency management, including:
- Burst Mode operation
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Discontinuous conductive mode (DCM), dynamic simple on/off control
Has programmable thresholds
- Programmable adaptive delay
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Average or peak current mode control with programmable slope compensation
and voltage mode control
- Closed-loop soft-start and enablement functions
- Bidirectional synchronization with programmable switching frequency up to 1 MHz
- (+/-3%), hiccup mode support for cycle-by-cycle current limit protection
- 150μA start-up current
- VUndervoltage lockout of DD
- Wide temperature range from -40°C to 125°C
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apply
- Phase shift full-bridge converter
- Servers, telecom power supplies
- Industrial power systems
- High-density power architecture
- Solar inverters, electric vehicles
parameter
| |
UCC28950 |
| topology |
Full bridge |
| Control method |
Current mode |
| Duty cycle (max.) (%) |
97 |
| Frequency (max) (khertz) |
1000 |
| On/Off of Undervoltage Lockout Threshold (5) |
6.75min/6.15min |
| Pins/Packets |
24TSSOP |
| (#) Regulated output |
One |
| Operating temperature range(°C) |
-40 to 125 |
andUCC28950Related ICs are:
| Model |
Manufacturers |
lot number |
encapsulation |
illustrate |
| UCC28950 |
TI |
11+ |
24TSSOP |
Green phase-shifted full-bridge controller with synchronous rectification |
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