UCC28881D
Active700-V LOWEST QUIESCENT CURRENT OFF-LINE SWITCHER
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UCC28881D
Active700-V LOWEST QUIESCENT CURRENT OFF-LINE SWITCHER
Technical Specifications
Parameters and characteristics for this part
| Specification | UCC28881D |
|---|---|
| Duty Cycle | 55 % |
| Fault Protection | Over Load, Current Limiting, Over Temperature, Short Circuit |
| Frequency - Switching | 62 kHz |
| Internal Switch(s) | True |
| Mounting Type | Surface Mount |
| Operating Temperature [Max] | 125 ¯C |
| Operating Temperature [Min] | -40 °C |
| Output Isolation | Non-Isolated |
| Package / Case | 8-SOIC |
| Package / Case | 0.154 in |
| Package / Case [custom] | 7 |
| Package / Case [custom] | 3.9 mm |
| Power (Watts) | 4.5 W |
| Supplier Device Package | 7-SOIC |
| Topology | Buck-Boost, Buck, Flyback |
| Voltage - Breakdown | 700 V |
| Voltage - Start Up | 3.9 V |
| Voltage - Supply (Vcc/Vdd) | 5 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Tube | 1 | $ 1.56 | |
| 10 | $ 1.40 | |||
| 75 | $ 1.32 | |||
| 150 | $ 1.13 | |||
| 300 | $ 1.06 | |||
| 525 | $ 0.92 | |||
| 1050 | $ 0.77 | |||
| 2550 | $ 0.71 | |||
| 5025 | $ 0.69 | |||
| Texas Instruments | TUBE | 1 | $ 1.29 | |
| 100 | $ 0.99 | |||
| 250 | $ 0.73 | |||
| 1000 | $ 0.52 | |||
Description
General part information
UCC28881 Series
The UCC28881 integrates the controller and a 14-Ω, 700-V power MOSFET into one monolithic device. The device also integrates a high-voltage current source, enabling start up and operation directly from the rectified mains voltage. UCC28881 is the same family device of UCC28880, with higher current handling capability.
The low quiescent current of the device enables excellent efficiency. With the UCC28881 the most common converter topologies, such as buck, buck-boost and flyback can be built using a minimum number of external components.
The UCC28881 incorporates a soft-start feature for controlled start up of the power stage which minimizes the stress on the power-stage components.
Documents
Technical documentation and resources