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UCC28C45
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Category:ACDC- and -DCDC-power supply
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Product Name:BiCMOS low-power current mode PWM controller
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Manufacturers:TI
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Production Batch Number:09+
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Encapsulation:8MSOP, 8PDIP, 8SOIC
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Stock Status:There is stock
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Stock Quantity:12000
- Minimum order quantity: 1
- Details:
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The UCC38C4x family is a high performance current mode PWM controller. This is an enhanced version of BiCMOS with pin-to-pin compatibility with the industry standard UC384xA family and the UC384x family of PWM controllers. In addition, the 7 volt low-voltage version is offered for start-up as the UCC38C40 and UCC38C41.
Providing the necessary functions to control fixed-frequency, peak current mode power supplies, this series offers the following performance benefits. The device provides high operating frequencies up to one low start-up and operating current megahertz, resulting in improved efficiency, minimized start-up losses, and low operating power consumption. The device also features a very fast current detection output delay time of 35 nanoseconds and ±1 improved peak output rise and fall times with the ability to drive large currents directly external MOSFETs.
characteristic
- Enhanced home and replacement UC3842A pin-to-pin compatibility
- 1 - MHz operation
- 50μA start-up current, 100μA maximum
- Low operating 2.3 mA current of 52 kHz
- Cycle overcurrent protection with fast 35 ns cycle
- Peak output current ± 1
- Rail Times 25-ns rise and 20 nanosecond rail output swing fall
- ± 1% initial side 2.5-V error amplifier reference
- Side vibration discharge current
- The new version of low voltage lockout
- The MSOP-8 package reduces board space
-
apply
- Switching power supply
- DC-DC converters
- Board mount the power module
parameter
| |
UCC28C45 |
|
| topology |
Boost, reverse, forward |
|
| Control method |
Current mode |
|
| Duty cycle (max.) (%) |
50 |
|
| Frequency (max) (khertz) |
1000 |
|
| On/Off of Undervoltage Lockout Threshold (5) |
8.4/7.6 |
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| Pins/Packets |
8MSOP，8PDIP，8SOIC |
|
| (#) Regulated output |
One |
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| Operating temperature range(°C) |
-40 to 105, -40 to 85 |
|
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