Key facts
- Brand
- Texas Instruments
- Model
- UCC38C40
- Industry
- Industrial
- Documents
- 2
- Languages
- EN
- Last added
- 2012-08-03
Start here
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 UCC38C40 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 UCC38C40 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 typical start‑up current of the UCC38C40?
The typical start‑up current is about 60 µA.
Is the UCC38C40 compatible with the UC3842 family?
Yes, it is a pin‑for‑pin replacement of the bipolar UC3842 family.