Startseite Energiemanagement AC/DC & DC/DC controllers (external FET)
Startseite
Energiemanagement
AC/DC & DC/DC controllers (external FET)

UCC38C42

AKTIV

Kommerzieller 20-V-Strommodus-PWM-Controller mit geringem Stromverbrauch, 14,5-V/9-V-UVLO, 100 % Tas

Jetzt bestellen
Datenblatt

UCC38C42

AKTIV
Datenblatt Jetzt bestellen

Produktdetails

Vin (max) (V) 18 Operating temperature range (°C) 0 to 85 Control mode Current Topology Boost, Buck, Flyback, Forward, SEPIC Rating Catalog Duty cycle (max) (%) 100
Vin (max) (V) 18 Operating temperature range (°C) 0 to 85 Control mode Current Topology Boost, Buck, Flyback, Forward, SEPIC Rating Catalog Duty cycle (max) (%) 100
SOIC (D) 8 29.4 mm² 4.9 x 6 VSSOP (DGK) 8 14.7 mm² 3 x 4.9
  • Enhanced replacement for UCx84x and UCx84xA family with pin-to-pin compatibility
  • Operating frequency: 1 MHz Maximum
  • 50-µA Startup Current, 100-µA Maximum
  • Low operating current: 2.3 mA (at fOSC = 52 kHz)
  • Fast, cycle-by-cycle overcurrent limiting: 35-ns
  • Peak driving current: ±1-A. Rail-to-rail output:
    • 25-ns rise time
    • 20-ns fall time
  • ±1% accurate 2.5-V error amplifier reference
  • Trimmed oscillator discharge current
  • Undervoltage lockout protections
  • VSSOP-8 package minimizes board space
  • Enhanced replacement for UCx84x and UCx84xA family with pin-to-pin compatibility
  • Operating frequency: 1 MHz Maximum
  • 50-µA Startup Current, 100-µA Maximum
  • Low operating current: 2.3 mA (at fOSC = 52 kHz)
  • Fast, cycle-by-cycle overcurrent limiting: 35-ns
  • Peak driving current: ±1-A. Rail-to-rail output:
    • 25-ns rise time
    • 20-ns fall time
  • ±1% accurate 2.5-V error amplifier reference
  • Trimmed oscillator discharge current
  • Undervoltage lockout protections
  • VSSOP-8 package minimizes board space

The UCCx8C4x family are high-performance, current-mode PWM controllers. The UCCx8C4x is an enhanced BiCMOS version with pin-for-pin compatibility to the industry standard UCx84xA family and UCx84x family of PWM controllers. The BiCMOS technology offers lower power consumption to improve efficiency as well as faster current sense and oscillator frequency.

In addition, lower startup voltage versions of 7 V are offered as UCCx8C40 and UCCx8C41 for use in battery systems. The UCC28C4x series is specified for operation from –40°C to 125°C, and the UCC38C4x series is specified for operation from 0°C to 85°C.

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, suitable for high speed applications. The trimmed discharge current enables more precise programming of the maximum duty cycle and dead-time limit when compared to the UCCx8C4x family. Reduced start-up and operating currents minimizes start-up loss and low operating power consumption for improved efficiency. The device also features a fast current-sense-to-output delay time of 35 ns for superior overload protection at the power switch, and a ±1-A peak output current capability with improved rise and fall times for driving large external MOSFETs directly.

The UCCx8C4x family is offered in 8-pin VSSOP (DGK) and 8-pin SOIC (D) packages.

The UCCx8C4x family are high-performance, current-mode PWM controllers. The UCCx8C4x is an enhanced BiCMOS version with pin-for-pin compatibility to the industry standard UCx84xA family and UCx84x family of PWM controllers. The BiCMOS technology offers lower power consumption to improve efficiency as well as faster current sense and oscillator frequency.

In addition, lower startup voltage versions of 7 V are offered as UCCx8C40 and UCCx8C41 for use in battery systems. The UCC28C4x series is specified for operation from –40°C to 125°C, and the UCC38C4x series is specified for operation from 0°C to 85°C.

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, suitable for high speed applications. The trimmed discharge current enables more precise programming of the maximum duty cycle and dead-time limit when compared to the UCCx8C4x family. Reduced start-up and operating currents minimizes start-up loss and low operating power consumption for improved efficiency. The device also features a fast current-sense-to-output delay time of 35 ns for superior overload protection at the power switch, and a ±1-A peak output current capability with improved rise and fall times for driving large external MOSFETs directly.

The UCCx8C4x family is offered in 8-pin VSSOP (DGK) and 8-pin SOIC (D) packages.
open-in-new Andere AC/DC & DC/DC controllers (external FET) suchen
Herunterladen Video mit Transkript ansehen Video

Ähnliche Produkte, die für Sie interessant sein könnten

open-in-new Alternativen vergleichen
Drop-In-Ersatz mit verbesserter Funktionalität im Gegensatz zum verglichenen Baustein
UCC28C42 AKTIV Industrieller 20-V-PWM-Controller mit geringem Stromverbrauch, 14,5-V/9-V-UVLO, 100 % Tastverhältnis Wider temperature range

Technische Dokumentation

star =Von TI ausgewählte Top-Empfehlungen für dieses Produkt
Keine Ergebnisse gefunden. Bitte geben Sie einen anderen Begriff ein und versuchen Sie es erneut.
Alle anzeigen 17
Typ Titel Datum
* Data sheet UCCx8C4x BiCMOS Low-Power Current-Mode PWM Controller datasheet (Rev. H) PDF | HTML 16 Sep 2022
Functional safety information UCCx8C4x Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA PDF | HTML 12 Sep 2022
Application note Conditioning a Switch-mode Power Supply Current Signal Using TI Op Amps (Rev. A) PDF | HTML 11 Jun 2021
Application note Understanding Inverting Buck-Boost Power Stages in Switch Mode Power Supplies (Rev. B) 12 Mär 2019
Selection guide Power Management Guide 2018 (Rev. R) 25 Jun 2018
Application note UCC38C44 12-V Isolated Bias Supply (Rev. A) 09 Okt 2008
User guide UCC38C42 30-W Synchronous Buck Converter Reference Design 04 Feb 2003
User guide UCC3961/UCC38C43 Reference Design 19 Nov 2002
Application note UCC38C42 25-W Forward Converter 06 Sep 2002
Application note UCC38C42 Family of High-Speed BiCMOS Current-Mode PWM Controllers 07 Feb 2002
More literature Seminar 300 Topic 8 - Switching Power Supply Design Review 15 Feb 2001
More literature Seminar 400 Topic 2 - Design of Flyback Transformers and Filter Inductors 15 Feb 2001
More literature Seminar 900 Topic 6 - High Power Factor Prereg Using SEPIC 15 Feb 2001
Application note DN-30 Programmable Electronic Circuit Breaker 05 Sep 1999
Application note DN-42A Design Considerations for Transitioning from UC3842 to the New UCC3802 05 Sep 1999
Application note DN-62 Switching Power Supply Topology Voltage Mode vs. Current Mode 05 Sep 1999
Application note U-111, Practical Considerations in Current Mode Power Supplies 05 Sep 1999

Design und Entwicklung

Weitere Bedingungen oder erforderliche Ressourcen enthält gegebenenfalls die Detailseite, die Sie durch Klicken auf einen der unten stehenden Titel erreichen.

Evaluierungsplatine

UCC28C56EVM-066 — UCC28C56H-Q1 Evaluierungsmodul für primärseitig gesteuerte (mit Hilfswicklung) Flyback-Regler

Das UCC28C56EVM-066 ist eine hocheffiziente primärseitig gesteuerte (mit Hilfswicklung) Flyback-Hilfsstromversorgung für EV/HEV-Automobilantriebe. Das Design bietet einen 15,2-Vtyp/40-W-Ausgang für 800-V-Batteriesysteme. Es liefert 40 W im Eingangsspannungsbereich von 125 V bis 1000 V. Die genaue (...)

Benutzerhandbuch: PDF | HTML
Nicht verfügbar auf TI.com
Simulationsmodell

UCC28C42 PSpice Transient Model

SLVM049.ZIP (101 KB) - PSpice Model
Herunterladen
Simulationsmodell

UCC28C42 TINA-TI Transient Start-up Reference Design

SLVM045.TSC (70 KB) - TINA-TI Reference Design
Herunterladen
Simulationsmodell

UCC28C42 TINA-TI Transient Start-up Spice Model

SLVM047.TSM (9 KB) - TINA-TI Spice Model
Herunterladen
Simulationsmodell

UCC28C42 TINA-TI Transient Steady State Reference Design

SLVM046.TSC (70 KB) - TINA-TI Reference Design
Herunterladen
Simulationsmodell

UCC28C42 TINA-TI Transient Steady State Spice Model

SLVM048.TSM (9 KB) - TINA-TI Spice Model
Herunterladen
Simulationsmodell

UCCx8C42 Unencrypted PSpice Transient Model

SLUM522.ZIP (4 KB) - PSpice Model
Herunterladen
Referenzdesigns

PMP30720 — Referenzdesign für isolierte Stromversorgung mit hohem Wirkungsgrad und extrem breitem Eingangsspann

This reference design uses the UCC28C42 boost controller and the UCC28780 active-clamp flyback controller to generate an isolated output of 24 V at 3.5 A over an ultra-wide input voltage range of 20 V to 375 V. The design also uses the UCC24612 synchronous rectifier controller on the secondary (...)
Test report: PDF
Schaltplan: PDF
Referenzdesigns

PMP10783 — Referenzdesign eines AC/DC-Abwärtswandlers mit 85 bis 318 V AC Eingangsspannung und 15 V Ausgangsspa

The PMP10783 reference design is an AC/DC buck converter. The input voltage range is 85VAC-318VAC, and has an output of 15V at 0.80A. This compact board design has an efficiency of greater than 80% at full load.
Test report: PDF
Schaltplan: PDF
Referenzdesigns

PMP10833 — Referenzdesign für AC-DC-Abwärtswandler, Eingangsspannung 85-318 V, Ausgangsspannung 15 V bei 1 A

The PMP10833RevA reference design is a compact and thermally efficient design intended to step down a wide range of AC inputs.  This design incorporates the UCC28C42, a current-mode PWM controller, with controllable frequencies up to 1Mhz.
Test report: PDF
Schaltplan: PDF
Referenzdesigns

PMP10834 — Referenzdesign für AC-DC-Abwärtswandler, Eingangsspannung 85-265 V, Ausgangsspannung 5 V bei 1 A

The PMP10834RevA reference design is a compact and thermally efficient design intended to step down a wide range of AC inputs (85VAC to 265VAC). This non-isolated Flybuck design incorporates the UCC28C42 PWM with an optocoupler feedback to provide 1% output voltage regulation. All the circuit (...)
Test report: PDF
Schaltplan: PDF
Gehäuse Pins Herunterladen
SOIC (D) 8 Optionen anzeigen
VSSOP (DGK) 8 Optionen anzeigen
Es gelten die allgemeinen Geschäftsbedingungen von TI für Evaluierungsartikel.

Bestellen & Qualität

Beinhaltete Information:
  • RoHS
  • REACH
  • Bausteinkennzeichnung
  • Blei-Finish/Ball-Material
  • MSL-Rating / Spitzenrückfluss
  • MTBF-/FIT-Schätzungen
  • Materialinhalt
  • Qualifikationszusammenfassung
  • Kontinuierliches Zuverlässigkeitsmonitoring
Beinhaltete Information:
  • Werksstandort
  • Montagestandort

Support und Schulungen

TI E2E™-Foren mit technischem Support von TI-Ingenieuren

Alle Forenthemen auf Englisch anzeigen

Inhalte werden ohne Gewähr von TI und der Community bereitgestellt. Sie stellen keine Spezifikationen von TI dar. Siehe Nutzungsbedingungen.

Bei Fragen zu den Themen Qualität, Gehäuse oder Bestellung von TI-Produkten siehe TI-Support. ​​​​​​​​​​​​​​

Videos