Key facts
- Brand
- Texas Instruments
- Model
- UCC28C45
- Industry
- Industrial
- Documents
- 2
- Languages
- EN
- Last added
- 2012-08-03
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TEXAS INSTRUMENTS UCC28C40/UCC28C41/UCC28C42/UCC28C43/UCC28C44/UCC28C45/UCC38C40/UCC38C41/UCC38C42/UCC38C43/UCC38C44/UCC38C45 handbook
The UCC28C4x and UCC38C4x families are high-performance current-mode PWM controllers designed as enhanced replacements for the UC384xA family. They offer pin-to-pin compatibility with the industry-standard UC384xA and UC384x families, featuring high-frequency operation up to 1 MHz with low startup and operating currents to minimize power consumption. The devices include a fast 35-ns cycle-by-cycle overcurrent limiting feature and a +1-A peak output current capability with improved rise and fall times for driving large external MOSFETs directly.
Read onlineTexas Instruments UCC28C45 specifications
| Maximum Operating Frequency | 1 MHz |
|---|---|
| Standby Current | 50-u.A |
| Maximum Operating Current | 100-u.A |
| Operating Current | 2.3 mA |
| Overcurrent Limiting Delay | 35 ns |
| Peak Output Current | +1-A |
| Output Rise Time | 25 ns |
| Output Fall Time | 20 ns |
| Error Amplifier Reference Accuracy | +1% |
| Input Voltage Range | 18 V |
| Operating Junction Temperature | -55°C to 150°C |
| Package Types | MSOP-8, SOIC-8, PDIP-8 |
All Texas Instruments UCC28C45 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What is the pin-to-pin compatibility of the UCC28C4x family?
The UCC28C4x family offers pin-for-pin compatibility to the industry standard UC384xA family and UC384x family of PWM controllers.
What are the applications for the UCC28C4x family?
These controllers are intended for use in switch-mode power supplies, de-to-de converters, and board mount power modules.
What is the maximum duty cycle for UCC38C41, UCC38C44, and UCC38C45?
The maximum duty cycle is limited to less than 50 % due to an internal T flip‑flop.
From: TEXAS INSTRUMENTS UCC28C40 UCC28C41 UCC28C42 UCC28C43 UCC28C44 UCC28C45 handbook