UCC28220PW
ActiveDUAL INTERLEAVED PWM CONTROLLER WITH PROGRAMMABLE MAX DUTY CYCLE 10V/8V UVLO
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UCC28220PW
ActiveDUAL INTERLEAVED PWM CONTROLLER WITH PROGRAMMABLE MAX DUTY CYCLE 10V/8V UVLO
Technical Specifications
Parameters and characteristics for this part
| Specification | UCC28220PW |
|---|---|
| Clock Sync | False |
| Control Features | Ramp, Soft Start |
| Duty Cycle (Max) [Max] | 75 % |
| Frequency - Switching [Max] | 2 MHz |
| Frequency - Switching [Min] | 200 kHz |
| Function | Step-Up/Step-Down |
| Mounting Type | Surface Mount |
| Number of Outputs | 2 |
| Operating Temperature [Max] | 105 °C |
| Operating Temperature [Min] | -40 °C |
| Output Configuration | Positive |
| Output Phases | 1 |
| Output Type | Transistor Driver |
| Package / Case | 16-TSSOP |
| Package / Case [x] | 0.173 in |
| Package / Case [y] | 4.4 mm |
| Supplier Device Package | 16-TSSOP |
| Synchronous Rectifier | False |
| Topology | Forward Converter, Flyback |
| Voltage - Supply (Vcc/Vdd) [Max] | 14.5 V |
| Voltage - Supply (Vcc/Vdd) [Min] | 8.4 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Arrow | N/A | 90 | $ 2.77 | |
| Digikey | Tube | 270 | $ 3.94 | |
| Texas Instruments | TUBE | 1 | $ 4.79 | |
| 100 | $ 4.20 | |||
| 250 | $ 2.94 | |||
| 1000 | $ 2.37 | |||
Description
General part information
UCC28220 Series
The UCC28220 and UCC28221 are a family of BiCMOS interleaved dual channel PWM controllers. Peak current mode control is used to ensure current sharing between the two channels. A precise maximum duty cycle clamp can be set to any value between 60% and 90% duty cycle per channel.
The UCC28220 has an UVLO turnon threshold of10 V for use in 12-V supplies while UCC28221 has a turnon threshold of 13 V for systems needing wider UVLO hysteresis. Both have 8-V turnoff thresholds.
Additional features include a programmable internal slope compensation with a special circuit which is used to ensure exactly the same slope is added to each channel and a high-voltage 110-V internal JFET for easier start-up for the wider hysteresis UCC28221 version.
Documents
Technical documentation and resources