Startseite Energiemanagement LED-Treiber LED-Hintergrundbeleuchtungstreiber

TPS61169

AKTIV

TPS61169: 38-V-Hochstrom-Boost-WLED-Treiber

Produktdetails

Number of channels 1 Vin (min) (V) 2.7 Vin (max) (V) 5.5 Vout (min) (V) 2.7 Vout (max) (V) 38 Type Inductive Switching frequency (max) (kHz) 1500 Duty cycle (max) (%) 100 LED current per channel (mA) 400 Peak efficiency (%) 90 Topology Boost Features OVP, PWM control Operating temperature range (°C) -40 to 85 Rating Catalog
Number of channels 1 Vin (min) (V) 2.7 Vin (max) (V) 5.5 Vout (min) (V) 2.7 Vout (max) (V) 38 Type Inductive Switching frequency (max) (kHz) 1500 Duty cycle (max) (%) 100 LED current per channel (mA) 400 Peak efficiency (%) 90 Topology Boost Features OVP, PWM control Operating temperature range (°C) -40 to 85 Rating Catalog
SOT-SC70 (DCK) 5 4.2 mm² 2 x 2.1
  • 2.7V to 5.5V input voltage
  • Integrated 40V, 1.8A MOSFET
  • Drives LED string up to 38V
  • 1.2A minimum switch current Limit
  • 1.2MHz switching frequency
  • 204mV reference voltage
  • Internal compensation
  • PWM brightness control
  • Open LED protection
  • Undervoltage protection
  • Built-in soft-start
  • Thermal shutdown
  • Up to 90% efficiency
  • 2.7V to 5.5V input voltage
  • Integrated 40V, 1.8A MOSFET
  • Drives LED string up to 38V
  • 1.2A minimum switch current Limit
  • 1.2MHz switching frequency
  • 204mV reference voltage
  • Internal compensation
  • PWM brightness control
  • Open LED protection
  • Undervoltage protection
  • Built-in soft-start
  • Thermal shutdown
  • Up to 90% efficiency

With a 40V rated integrated switch FET, the TPS61169 is a boost converter that drives LEDs in series. The boost converter has a 40V, 1.8A internal MOSFET with minimum 1.2A current limit; thus it can drive single or parallel LED strings for small- to large-size panel backlighting. The default white LED current is set with the external sensor resistor, RSET, and the feedback voltage is regulated to 204mV, as shown in the Simplified Schematic. During the operation, the LED current can be controlled by using a pulse width modulation (PWM) signal applied to the CTRL pin, through which the duty cycle determines the feedback reference voltage. The TPS61169 does not burst the LED current; therefore, it does not generate audible noises on the output capacitor. For maximum protection, the device features integrated open LED protection that disables the TPS61169 to prevent the output voltage from exceeding the absolute maximum voltage ratings of the device during open LED conditions.

The TPS61169 is available in a space-saving 5-pin SC70 package.

With a 40V rated integrated switch FET, the TPS61169 is a boost converter that drives LEDs in series. The boost converter has a 40V, 1.8A internal MOSFET with minimum 1.2A current limit; thus it can drive single or parallel LED strings for small- to large-size panel backlighting. The default white LED current is set with the external sensor resistor, RSET, and the feedback voltage is regulated to 204mV, as shown in the Simplified Schematic. During the operation, the LED current can be controlled by using a pulse width modulation (PWM) signal applied to the CTRL pin, through which the duty cycle determines the feedback reference voltage. The TPS61169 does not burst the LED current; therefore, it does not generate audible noises on the output capacitor. For maximum protection, the device features integrated open LED protection that disables the TPS61169 to prevent the output voltage from exceeding the absolute maximum voltage ratings of the device during open LED conditions.

The TPS61169 is available in a space-saving 5-pin SC70 package.

Herunterladen Video mit Transkript ansehen Video

Ähnliche Produkte, die für Sie interessant sein könnten

Ähnliche Funktionalität wie verglichener Baustein
TPS61161 AKTIV Weißer LED-Treiber mit digitaler und PWM-Helligkeitsregelung in einem 2mm x 2mm WSON-Gehäuse This product is a high-brightness, single string white LED driver.
TPS61165 AKTIV LED-Treiber für helles, weißes Licht in einem 2 mm x 2 mm QFN-Gehäuse This product is a high-brightness, single string white LED driver.

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 8
Typ Titel Datum
* Data sheet TPS61169 38V High Current-Boost WLED Driver With PWM Control datasheet (Rev. B) PDF | HTML 16 Jun 2024
White paper Common LED Functions and LED Driver Design Considerations 21 Sep 2020
Technical article Overcoming common design challenges in an UV sterilization box system PDF | HTML 27 Jul 2020
Application note Simple Backlight Driver Dimming Performance 20 Mär 2017
Application note Analog PWM Dimming in White-LED Drivers 21 Dez 2016
Application note Inductor Selection in Boost Converters for LCD Backlight Applications 24 Okt 2016
Application note Schottky Diode Selection in Asynchronous Boost Converters 06 Sep 2016
User guide Using the TPS61169 Evaluation Module 11 Nov 2014

Design und Entwicklung

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

Evaluierungsplatine

TPS61169EVM — Evaluierungsplatine für TPS61169EVM WLED-Treiber

The Texas Instruments TPS61169EVM evaluation module (EVM) helps designers evaluate the operation and performance of the TPS61169, which are WLED driver providing highly integrated solutions for single-cell Li-ion battery powered backlight for small and media form factor LCD display.  The EVM (...)

Benutzerhandbuch: PDF
Simulationsmodell

TPS61169 TINA-TI Reference Design

SNVMBI4.TSC (3026 KB) - TINA-TI Reference Design
Simulationsmodell

TPS61169 TINA-TI Transient Spice Model

SNVMBI5.ZIP (48 KB) - TINA-TI Spice Model
Simulationsmodell

TPS61169 Unencrypted PSpice Transient Model Package (Rev. B)

SNVMAV9B.ZIP (389 KB) - PSpice Model
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 (...)
Referenzdesigns

TIDA-01579 — Hocheffizientes Referenzdesign für Stromversorgungen mit niedriger Ausgangswelligkeit für Bildgebung

The point-of-load power-tree on video surveillance systems is optimized with this reference design. This reference design has a high performance on key parameters such as output voltage accuracy, voltage ripple, and thermal dissipation. This high performance is possible with a small board area and (...)
Design guide: PDF
Schaltplan: PDF
Referenzdesigns

TIDA-01586 — Referenzdesign für IR-LED-Beleuchtung und ICR-Steuerung für IP-Netzwerkkameras mit Tag- und Nachtsic

This reference design showcases an Infrared LED illumination sub-system for Internet Protocol (IP) network cameras with day and night vision. The system features a cut filter control, LED dimming, ambient light measuring and ballasting for current of each IR LED string. Ballasting is an (...)
Design guide: PDF
Schaltplan: PDF
Gehäuse Pins CAD-Symbole, Footprints und 3D-Modelle
SOT-SC70 (DCK) 5 Ultra Librarian

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

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