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UCC28070
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Category:ACDC- and -DCDC-power supply
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Product Name:Two-phase interleaved CCM PFC controller
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Manufacturers:TI
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Production Batch Number:11+
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Encapsulation:20SOIC, 20TSSOP
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Stock Status:There is stock
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Stock Quantity:45000
- Minimum order quantity: 1
- Details:
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UCC28070 is an advanced power factor correction device that integrates two pulse-width modulators (PWM) operating 180°. The input and output ripple currents generated during this interleaved PWM operation are drastically reduced, and EMI filtering becomes easier and cheaper to perform. A significantly improved multiplier design provides a common reference current to ensure that two independent two PWM outputs match the average current mode control current amplifier while maintaining a stable, low-distortion sinusoidal input current.
Includes current UCC28070 containing multiple innovations in synthesizing and quantizing voltage feed-forward to facilitate performance enhancements in PF, efficiency, total harmonic distortion, and transient response.
Device usage
- High-efficiency server and desktop power supplies
- 电信整流器
- White goods and industrial equipment
characteristic
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Interleaved average current mode PWM control
The intrinsic of the current match
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Advanced current synthesis current sensing
Excellent efficiency
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High linear multiplier output with internal quantization
Voltage feed-forward correction is close to the unified provident fund
- Programmable frequency (30 kHz to 300 kHz)
- Programmable maximum duty cycle clamp
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Programmable frequency jitter rate and amplitude
For enhanced EMI reduction
- Magnitude: 3 kHz to 30 kHz
- Rate: up to 30 kHz
- External clock synchronization capability
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Enhanced load and line pass-through voltage transient response
Amplifier output slew rate correction
- Programmable peak current limit
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Bias power supply undervoltage lockout, overvoltage protection, open-loop detection,
and PFC to enable monitoring
- External PFC - Disable interface
- Open circuit protection and VNAC on VSENSE feet
- Programmable soft-start
- 20-pin TSSOP package/SOIC package
parameter
| |
|
UCC28070 |
| On/Off of Undervoltage Lockout Threshold (5) |
|
10.2/9.2 |
| Operating power supply (max) (5) |
|
21 |
| Starting current (mA) |
|
20 |
| Operating Supply Current (mA) |
|
20 |
| Vref's (V) |
|
6 |
| Thor of Vref (%) |
|
Three |
| Duty cycle (max.) (%) |
|
99 |
| Actual operating frequency (max) (MHz) |
|
0.3 |
| Pins/Packets |
|
20SOIC，20TSSOP |
andUCC28070Related ICs are:
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lot number |
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illustrate |
| UCC28070 |
TI |
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Two-phase interleaved CCM PFC controller |
| UCC28070-Q1 |
TI |
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