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UCC2892
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Category:ACDC- and -DCDC-power supply
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Product Name:UCC289x current mode active clamp PWM controller
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Manufacturers:TI
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Production Batch Number:11+
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Encapsulation:16SOIC, 16TSSOP
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Stock Status:There is stock
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Stock Quantity:84000
- Minimum order quantity: 1
- Details:
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The UCC2891/2/3/4 series of PWM controllers is designed to simplify the implementation of various active clamp/reset switching power supply topologies.
The UCC289x is a peak current mode, fixed frequency, high performance pulse width modulator. It includes the ability to actuate logic and critical delay auxiliary switches for an easy way to operate with properly programmed active clamps.
The UCC2891/3 includes a 110-V start-up regulator for initial entrepreneurship and provides keep-alive power in standby.
Other features include internally programmable slope compensation circuitry and accurate Dutmostlimits and a resistor programmable synchronous oscillator. The conversion function of the accurate online monitoring program also converts on \x92s and OFF with respect to large volumes of input voltage.
characteristic
- Low output jitter
- Soft stop shutdown primary and secondary
- Active clamp/reset forward, ideal flyback converter
- A complementary auxiliary driver with programmable dead time (turn-on delay) is provided between the AUX and the main switch
- The peak current mode control period limits the cycle current
- 110-V input priming regulator to UCC2891/3
- TrueDrive™2 sinks, 2 source outputs
- Precise line UV and OV threshold lines
- Programmable slope compensation
- 1.0 - MHz synchronous oscillator
- Precisely programmable maximum duty cycle
- Programmable soft-start
-
apply
- 150 watt to 700 watt switching power supply
- High efficiency, low EMI/RFI off-line or DC/DC converters
- Server, 48 V telecom, data communication
- High power converter, LCD TV and plasma TV
parameter
| |
|
UCC2892 |
|
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| topology |
|
Reverse, forward |
|
|
| Control method |
|
Current mode |
|
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| Frequency (max) (khertz) |
|
1000 |
|
|
| On/Off of Undervoltage Lockout Threshold (5) |
|
13.0/8.0 |
|
|
| Pins/Packets |
|
16SOIC，16TSSOP |
|
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| (#) Regulated output |
|
One |
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| Operating temperature range(°C) |
|
-40 to 105, -40 to 85 |
|
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UCC289x current mode active clamp PWM controller |
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