Key facts
- Brand
- Texas Instruments
- Model
- UCC38C40
- 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
UCC38C4x family is a high-performance current- mode PWM controller. It is an enhanced BiCMOS version with pin-for-pin compatibility to the industry standard UC384xA family and UC384x family of PWM controllers. In addition, lower startup voltage versions of 7 V are offered as UCC38C40 and UCC38C41. Providing necessary features to control fixed frequency, peak current-mode power supplies, this family offers the following performance advantages. The device offers high-frequency operation up to 1 MHz with low start-up and operating currents, thus minimizing start-up loss and low operating power consumption for improved efficiency. The device also features a very fast current-mode output limiting function that can limit the output current in each cycle to prevent the output current from exceeding the maximum permissible value.
Read onlineTexas Instruments UCC38C40 specifications
| Operating junction temperature range | -55 °C to 150 °C |
|---|---|
| Maximum duty cycle (UCC38C42, UCC38C43, UCC38C40) | 94 % |
| Start‑up current (typical) | 60 µA |
| Peak output current | ±1 A |
| Supply voltage range (VDD) | 15 V (typical) |
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 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.