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UCC28C41-Q1 Datasheet Preview

UCC28C41-Q1 Datasheet

PWM Controllers

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UCC28C40-Q1, UCC28C41-Q1, UCC28C42-Q1
UCC28C43-Q1, UCC28C44-Q1, UCC28C45-Q1
SLUSA12D – DECEMBER 2009 – REVISED OCTOBER 2019
UCC28C4x-Q1 Automotive BiCMOS Low-Power Current-Mode PWM Controllers
1 Features
1 AEC-Q100 qualified with the following results:
– Device temperature grade 1:-40C to 125C
– Device HBM classification level 2: ±2 kV
– Device CDM classification level C4B: 750 V
• 1-MHz operation
• 50-μA standby current, 100-μA maximum
• Low operating current of 2.3 mA at 52 kHz
• Fast 35-ns cycle-by-cycle over-current limiting
• ±1-A peak output current
• Rail-to-rail output swings with 25-ns rise and 20-
ns fall times
• ±1% initial trimmed 2.5-V error amplifier reference
• Trimmed oscillator discharge current
• New undervoltage lockout versions
• Create a custom design using the UCC28C4x-Q1
with the WEBENCH® Power Designer
2 Applications
• OBC and DC/DC converter isolated bias power
supply
• Traction inverter HV to LV backup supply
• HVAC compressor HV isolated power supply
• AC and DC EV charging equipment isolated
power supply
3 Description
The UCC28C4x-Q1 family devices are high
performance current-mode PWM controllers.
The UCC28C4x-Q1 family supports a fixed-
frequency, peak current-mode flyback implementation
with UVLO and maximum duty-cycle limit options.
UCC28C4X-Q1 can be configured with either
primary-side regulation using an auxiliary winding or
secondary-side regulation with the use of an opto-
coupler. This family of devices features high
frequency operation up to 1 MHz with low start up
and operating currents, thus minimizing start up loss
and operating power consumption for improved
efficiency. The devices also feature a fast current
sense to output delay time of 35 ns, and a ±1-A peak
output current capability for driving large external
MOSFETs directly.
The UCC28C4x-Q1 family is offered in the 8-pin
SOIC (D) package.
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
UCC28C40-Q1
(preview)
UCC28C41-Q1
UCC28C42-Q1
UCC28C43-Q1
SOIC (8)
4.90 mm × 3.91 mm
UCC28C44-Q1
UCC28C45-Q1
(1) For all available packages, see the orderable addendum at
the end of the datasheet.
Typical Automotive Application Example
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. UNLESS OTHERWISE NOTED, this document contains PRODUCTION
DATA.




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UCC28C41-Q1 Datasheet Preview

UCC28C41-Q1 Datasheet

PWM Controllers

No Preview Available !

UCC28C40-Q1, UCC28C41-Q1, UCC28C42-Q1
UCC28C43-Q1, UCC28C44-Q1, UCC28C45-Q1
SLUSA12D – DECEMBER 2009 – REVISED OCTOBER 2019
www.ti.com
Table of Contents
1 Features .................................................................. 1
2 Applications ........................................................... 1
3 Description ............................................................. 1
4 Revision History..................................................... 2
5 Device Comparison Table..................................... 3
6 Pin Configuration and Functions ......................... 3
7 Specifications......................................................... 4
7.1 Absolute Maximum Ratings ...................................... 4
7.2 ESD Ratings.............................................................. 4
7.3 Recommended Operating Conditions....................... 4
7.4 Thermal Information .................................................. 5
7.5 Electrical Characteristics........................................... 5
7.6 Typical Characteristics .............................................. 7
8 Detailed Description ............................................ 11
8.1 Overview ................................................................. 11
8.2 Functional Block Diagram ....................................... 12
8.3 Feature Description................................................. 12
8.4 Device Functional Modes........................................ 21
9 Application and Implementation ........................ 22
9.1 Application Information............................................ 22
9.2 Typical Application .................................................. 23
10 Power Supply Recommendations ..................... 34
11 Layout................................................................... 35
11.1 Layout Guidelines ................................................. 35
11.2 Layout Example .................................................... 37
12 Device and Documentation Support ................. 38
12.1 Device Support...................................................... 38
12.2 Documentation Support ....................................... 38
12.3 Related Links ........................................................ 38
12.4 Community Resource............................................ 38
12.5 Trademarks ........................................................... 38
12.6 Electrostatic Discharge Caution ............................ 39
12.7 Glossary ................................................................ 39
13 Mechanical, Packaging, and Orderable
Information ........................................................... 39
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Revision C (August 2019) to Revision D
Page
• Changed 3 V to 2.5 V ........................................................................................................................................................... 16
Changes from Revision B (October 2017) to Revision C
Page
• Changed Updated Applications section.................................................................................................................................. 1
• Changed Updated description ................................................................................................................................................ 1
• Changed the marketing status Advance Information to Initial Release for the UCC28C41-Q1 , UCC28C42-Q1,
UCC28C44-Q1 and UCC28C45-Q1 devices.......................................................................................................................... 1
• Changed AGain TA = 25°C MIN from 2.75 V to 2.85 V............................................................................................................ 6
• Changed AGain TA = Full Range, MIN from 2.85 V to 2.75 V. ................................................................................................ 6
• Added Link to Technical Support ........................................................................................................................................ 38
2 Submit Documentation Feedback
Copyright © 2009–2019, Texas Instruments Incorporated
Product Folder Links: UCC28C40-Q1 UCC28C41-Q1 UCC28C42-Q1 UCC28C43-Q1 UCC28C44-Q1 UCC28C45-Q1


Part Number UCC28C41-Q1
Description PWM Controllers
Maker etcTI
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