Startseite Energiemanagement LED-Treiber LED-Hintergrundbeleuchtungstreiber
Startseite
Energiemanagement
LED-Treiber
LED-Hintergrundbeleuchtungstreiber

TPS61176

AKTIV

Hocheffizienter 6-Kanal-WLED-Treiber mit Unterstützung für den Eingang einzelliger Li-Ion-Akkus

Jetzt bestellen
Datenblatt

TPS61176

AKTIV
Datenblatt Jetzt bestellen

Produktdetails

Number of channels 6 Vin (min) (V) 2.7 Vin (max) (V) 6.5 Vout (min) (V) 2.7 Vout (max) (V) 38 Type Inductive Switching frequency (max) (kHz) 1000 Duty cycle (max) (%) 93 LED current per channel (mA) 35 Peak efficiency (%) 90 Topology Boost Operating temperature range (°C) -40 to 85 Rating Catalog
Number of channels 6 Vin (min) (V) 2.7 Vin (max) (V) 6.5 Vout (min) (V) 2.7 Vout (max) (V) 38 Type Inductive Switching frequency (max) (kHz) 1000 Duty cycle (max) (%) 93 LED current per channel (mA) 35 Peak efficiency (%) 90 Topology Boost Operating temperature range (°C) -40 to 85 Rating Catalog
WQFN (RTE) 16 9 mm² 3 x 3
  • 2.7-V to 6.5-V VIN Voltage Range
  • 2.7-V to 24-V Boost Input Voltage Range
  • Integrated 2-A/40-V MOSFET
  • 1-MHz Switching Frequency
  • Adaptive Boost Output to WLED Voltages
  • Six Current Sinks of 35 mA Capability Each
  • ±2% (Maximum) Current Accuracy
  • 1.3% (Typical) Current Matching
  • 100-Hz to 22-kHz Input PWM Frequency
  • Mixed Dimming Mode: Automatic Switch Between
    Analog Dimming and PWM Dimming
    • Programmable Switch Point: 25% or 12.5%
    • Programmable PWM Dimming Mode: 22-kHz
      PWM Dimming, Direct PWM Dimming
  • Up to 14-bit Dimming Resolution
  • Support Down to 1% Dimming Duty Cycle
  • Input PWM Glitch Filter
  • Up to 90% Efficiency
  • Driver for Input and Output Isolation PFET for
    True Shutdown
  • Built-in WLED Open and Short Protection
  • Thermal Shutdown
  • 2.7-V to 6.5-V VIN Voltage Range
  • 2.7-V to 24-V Boost Input Voltage Range
  • Integrated 2-A/40-V MOSFET
  • 1-MHz Switching Frequency
  • Adaptive Boost Output to WLED Voltages
  • Six Current Sinks of 35 mA Capability Each
  • ±2% (Maximum) Current Accuracy
  • 1.3% (Typical) Current Matching
  • 100-Hz to 22-kHz Input PWM Frequency
  • Mixed Dimming Mode: Automatic Switch Between
    Analog Dimming and PWM Dimming
    • Programmable Switch Point: 25% or 12.5%
    • Programmable PWM Dimming Mode: 22-kHz
      PWM Dimming, Direct PWM Dimming
  • Up to 14-bit Dimming Resolution
  • Support Down to 1% Dimming Duty Cycle
  • Input PWM Glitch Filter
  • Up to 90% Efficiency
  • Driver for Input and Output Isolation PFET for
    True Shutdown
  • Built-in WLED Open and Short Protection
  • Thermal Shutdown

The TPS61176 is an integrated WLED backlight driver for tablets or notebook PCs using single-cell batteries. It comprises a high-efficiency boost converter with an integrated 2-A, 40-V power MOSFET, and six current sink regulators. The device can drive up to 60 WLEDs. The boost output voltage automatically adjusts to the WLED forward voltage to improve efficiency.

The TPS61176 supports mixed dimming mode. The automatic switch between PWM dimming and analog dimming increases the overall electrical-to-optical efficiency, reducing power of the backlight significantly. The switch point can be programmed to 12.5% or 25%. PWM dimming mode can also be programmed to fixed frequency dimming or direct PWM dimming. The device supports up to 14-bit dimming resolution to avoid potential flickering during low brightness dimming.

True shutdown is supported with a driver for an external isolation P-channel MOSFET. When the device is disabled or the boost output is shorted to ground, the isolation PFET is turned off to cut off the power path from battery preventing any leakage current from the battery. The device also integrates soft start, thermal shutdown, WLED open and short protection. Its 16-pin WQFN package provides a space-saving and high-performance WLED driver solution.

The TPS61176 is an integrated WLED backlight driver for tablets or notebook PCs using single-cell batteries. It comprises a high-efficiency boost converter with an integrated 2-A, 40-V power MOSFET, and six current sink regulators. The device can drive up to 60 WLEDs. The boost output voltage automatically adjusts to the WLED forward voltage to improve efficiency.

The TPS61176 supports mixed dimming mode. The automatic switch between PWM dimming and analog dimming increases the overall electrical-to-optical efficiency, reducing power of the backlight significantly. The switch point can be programmed to 12.5% or 25%. PWM dimming mode can also be programmed to fixed frequency dimming or direct PWM dimming. The device supports up to 14-bit dimming resolution to avoid potential flickering during low brightness dimming.

True shutdown is supported with a driver for an external isolation P-channel MOSFET. When the device is disabled or the boost output is shorted to ground, the isolation PFET is turned off to cut off the power path from battery preventing any leakage current from the battery. The device also integrates soft start, thermal shutdown, WLED open and short protection. Its 16-pin WQFN package provides a space-saving and high-performance WLED driver solution.
filter Andere LED-Hintergrundbeleuchtungstreiber suchen
Herunterladen Video mit Transkript ansehen Video

Ähnliche Produkte, die für Sie interessant sein könnten

open-in-new Alternativen vergleichen
Ähnliche Funktionalität wie verglichener Baustein
TPS61177A AKTIV WLED-Treiber für Notebook- und Tablet-Displays This product is a six string WLED driver for notebook and tablet display with improved EMI performance.

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 4
Typ Titel Datum
* Data sheet TPS61176 High-Efficiency 6-Channel WLED Driver Supporting Single-Cell Li-Ion Battery Input datasheet (Rev. B) PDF | HTML 27 Aug 2015
White paper Common LED Functions and LED Driver Design Considerations 21 Sep 2020
Selection guide Power Management Guide 2018 (Rev. R) 25 Jun 2018
User guide TPS61176EVM-566 User's Guide 05 Dez 2013

Design und Entwicklung

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

Evaluierungsplatine

TPS61176EVM-566 — Hocheffizienter 6-Kanal-WLED-Treiber mit Unterstützung für den Eingang einzelliger Li-Ion-Akkus – Ev

The Texas Instruments TPS61176EVM-566 evaluation module (EVM) helps designers evaluate the operation and performance of the TPS61176 , which are multi-channel WLED drivers providing highly integrated solutions for tablet or notebook PCs, which can support single-cell battery input directly. The EVM (...)

Nicht verfügbar auf TI.com
Simulationstool

PSPICE-FOR-TI — PSpice® für TI Design-und Simulationstool

PSpice® für TI ist eine Design- und Simulationsumgebung, welche Sie dabei unterstützt, die Funktionalität analoger Schaltungen zu evaluieren. Diese voll ausgestattete Design- und Simulationssuite verwendet eine analoge Analyse-Engine von Cadence®. PSpice für TI ist kostenlos erhältlich und (...)
Anfordern
Gehäuse Pins CAD-Symbole, Footprints und 3D-Modelle
WQFN (RTE) 16 Ultra Librarian
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

Empfohlene Produkte können Parameter, Evaluierungsmodule oder Referenzdesigns zu diesem TI-Produkt beinhalten.

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