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TPS61161

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Weißer LED-Treiber mit digitaler und PWM-Helligkeitsregelung in einem 2mm x 2mm WSON-Gehäuse

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NEU TPS923611 AKTIV Synchr. Aufwärts-LED-Treiber mit PWM-gesteuerter Analogdimmung, mit 0,1 %-Verhältnis, 30 V, 1,8 A Newer Device with market 1st synchronous boost topology

TPS61161

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Produktdetails

Number of channels 1 Vin (min) (V) 2.7 Vin (max) (V) 18 Vout (min) (V) 2.7 Vout (max) (V) 38 Type Inductive Switching frequency (max) (kHz) 600 Duty cycle (max) (%) 93 LED current per channel (mA) 20 Peak efficiency (%) 90 Topology Boost Features EasyScale 1-Wire Interface, Load Disconnect During Shutdown Operating temperature range (°C) -40 to 85 Rating Catalog
Number of channels 1 Vin (min) (V) 2.7 Vin (max) (V) 18 Vout (min) (V) 2.7 Vout (max) (V) 38 Type Inductive Switching frequency (max) (kHz) 600 Duty cycle (max) (%) 93 LED current per channel (mA) 20 Peak efficiency (%) 90 Topology Boost Features EasyScale 1-Wire Interface, Load Disconnect During Shutdown Operating temperature range (°C) -40 to 85 Rating Catalog
WSON (DRV) 6 4 mm² (2 mm × 2 mm)
  • 2.7-V to 18-V Input Voltage Range
  • 26-V Open LED Protection (TPS61160)
  • 38-V Open LED Protection (TPS61161)
  • 200-mV Reference Voltage With ±2% Accuracy
  • Flexible Digital and PWM Brightness Control
  • Built-in Soft Start
  • Up to 90% Efficiency
  • 2.7-V to 18-V Input Voltage Range
  • 26-V Open LED Protection (TPS61160)
  • 38-V Open LED Protection (TPS61161)
  • 200-mV Reference Voltage With ±2% Accuracy
  • Flexible Digital and PWM Brightness Control
  • Built-in Soft Start
  • Up to 90% Efficiency

With a 40-V rated integrated switch FET, the TPS61160 and TPS61161 are boost converters that drive LEDs in series. The boost converters run at 600-kHz fixed switching frequency to reduce output ripple, improve conversion efficiency, and allow for the use of small external components.

The default white LED current is set with the external sensor resistor RSET, and the feedback voltage is regulated to 200 mV, as shown in the . During the operation, the LED current can be controlled using the one-wire digital interface (EasyScale protocol) through the CTRL pin. Alternatively, a pulse width modulation (PWM) signal can be applied to the CTRL pin through which the duty cycle determines the feedback reference voltage. In either digital or PWM mode, the TPS61160 and TPS61161 do not burst the LED current; therefore, they do not generate audible noises on the output capacitor. For maximum protection, the device features integrated open LED protection that disable the TPS61160 and/or TPS61161 to prevent the output voltage from exceeding the device's absolute maximum voltage ratings during open LED conditions.

The TPS61160 and TPS61161 are available in a space-saving, 2-mm × 2-mm WSON package with thermal pad.

For all available packages, see the orderable addendum at the end of the data sheet.

With a 40-V rated integrated switch FET, the TPS61160 and TPS61161 are boost converters that drive LEDs in series. The boost converters run at 600-kHz fixed switching frequency to reduce output ripple, improve conversion efficiency, and allow for the use of small external components.

The default white LED current is set with the external sensor resistor RSET, and the feedback voltage is regulated to 200 mV, as shown in the . During the operation, the LED current can be controlled using the one-wire digital interface (EasyScale protocol) through the CTRL pin. Alternatively, a pulse width modulation (PWM) signal can be applied to the CTRL pin through which the duty cycle determines the feedback reference voltage. In either digital or PWM mode, the TPS61160 and TPS61161 do not burst the LED current; therefore, they do not generate audible noises on the output capacitor. For maximum protection, the device features integrated open LED protection that disable the TPS61160 and/or TPS61161 to prevent the output voltage from exceeding the device's absolute maximum voltage ratings during open LED conditions.

The TPS61160 and TPS61161 are available in a space-saving, 2-mm × 2-mm WSON package with thermal pad.

For all available packages, see the orderable addendum at the end of the data sheet.
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Technische Dokumentation

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Top-Dokumentation Typ Titel Format-Optionen Neueste englische Version herunterladen Datum
* Datenblatt TPS6116x White LED Drivers With Digital and PWM Brightness Control in 2-mm x 2-mm WSON Package datasheet (Rev. E) PDF | HTML 14.07.2016
Whitepaper Common LED Functions and LED Driver Design Considerations 21.09.2020
Anwendungshinweis Some Guidelines and Tips for the LED Driver Application 14.08.2019
Anwendungshinweis Performing Accurate PFM Mode Efficiency Measurements (Rev. A) 11.12.2018
Auswahlhilfe Power Management Guide 2018 (Rev. R) 25.06.2018
Anwendungshinweis Optimizing Transient Response of Internally Compensated DC-DC Converters (Rev. B) 29.11.2017
Anwendungshinweis Extending the Soft Start Time Without a Soft Start Pin (Rev. B) 15.06.2017
Anwendungshinweis Simple Backlight Driver Dimming Performance 20.03.2017
Anwendungshinweis Analog PWM Dimming in White-LED Drivers 21.12.2016
Anwendungshinweis Inductor Selection in Boost Converters for LCD Backlight Applications 24.10.2016
Anwendungshinweis Schottky Diode Selection in Asynchronous Boost Converters 06.09.2016
Anwendungshinweis How to Use Analog Dimming With TPS6116x 05.08.2011

Design und Entwicklung

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Evaluierungsplatine

TPS61161EVM-243 — TPS61161EVM-243-Evaluierungsmodul

The TPS61161EVM-243 facilitates evaluation of the TPS61161 White LED Driver with Digital and PWM Brightness Control. With its 40 V rated integrated switch FET, the TPS61161 is a boost converter to drive up to 10 LEDs in series. The boost converter runs at 600 kHz fixed switching (...)

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Support-Software

TPS6116XEVM-SW — Software für TPS6116x-Evaluierungsmodule

The TPS6116xEVM-SW software provides a software interface for the TPS6116x/70 EVM boards. Use this software to change the TPS6116x IC register via the USB Interface Adapter.

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Simulationsmodell

TPS61161 Unencrypted PSpice Transient Model Package (Rev. B)

SLVM968B.ZIP (211 KB) - PSpice-Modell
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Berechnungstool

SLVC366 — Design Tool for Analog Dimming Using a PWM Signal

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Gehäuse Pins CAD-Symbole, Footprints und 3D-Modelle
WSON (DRV) 6 Ultra Librarian
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