LM3632A
Ein-Chip-Hintergrundbeleuchtung mit Bias-Stromversorgung und 1,5-A-Flash-LED-Treiber
LM3632A
- Drives up to Two Strings of Typically Eight LEDs
in Series- Integrated Backlight Boost with 29-V Maximum
Output Voltage - Two Low-Side Constant-Current LED Drivers
with 25-mA Maximum Output Current
- Integrated Backlight Boost with 29-V Maximum
- Backlight Efficiency Up to 90%
- 11-Bit Exponential or Linear Dimming
- External PWM Input for CABC Backlight
Operation - LCD Bias Efficiency > 85%
- Programmable Positive LCD bias, 4-V to 6-V, 50-
mA Maximum Output Current - Programmable Negative LCD bias, –4-V to –6-V,
50-mA Maximum Output Current - 1.5-A Flash LED Boost
- Flash Efficiency > 85%
- 2.7-V to 5-V Input Voltage Range
The LM3632A integrates the WLED drivers for both the backlight of the LCD panel and the camera flash along with the bias power for the LCD panel into one device. The device has all the safety features required in LED drivers with up to 90% efficiency and bias positive/negative power rails achieving 1.5% accuracy. Capable of driving up to 16 backlight LEDs, the device is ideal for small- to medium-size displays. A 1.5-A constant-current LED driver powered by a synchronous boost converter can be used for flash applications. The high-side flash current source allows for grounded cathode LED operation.
A high level of integration and programmability allows the LM3632A to address a variety of applications without the need for hardware changes.
Technische Dokumentation
Typ | Titel | Datum | ||
---|---|---|---|---|
* | Data sheet | LM3632A Single-Chip Backlight With Bias Power and 1.5-A Flash LED Driver datasheet (Rev. A) | PDF | HTML | 10 Sep 2015 |
White paper | Common LED Functions and LED Driver Design Considerations | 21 Sep 2020 | ||
Application note | Analog PWM Dimming in White-LED Drivers | 21 Dez 2016 | ||
EVM User's guide | LM3632A Evaluation Module User's Guide | 24 Mär 2015 |
Design und Entwicklung
Weitere Bedingungen oder erforderliche Ressourcen enthält gegebenenfalls die Detailseite, die Sie durch Klicken auf einen der unten stehenden Titel erreichen.
LM3632EVM — LM3632EVM Ein-Chip-Hintergrundbeleuchtung mit Bias-Stromversorgung und 1,5-A-Flash-LED-Treiber
The LM3632EVM aids in evaluation of the LM3632 Single-Chip Backlight + Bias Power + 1.5-A Flash LED Driver.
The LM3632 contains 3 major blocks:
- A high efficiency backlight driver capable of driving 2 LED strings of up to 8 LEDs per string.
- A set of positive and negative bias supplies of programmable (...)
LM3532SW-LINUX — Linux-Treiber für LM3532
Linux Mainline Status
Available in Linux Main line: No
Available through git.ti.com: (...)
PSPICE-FOR-TI — PSpice® für TI Design-und Simulationstool
Gehäuse | Pins | CAD-Symbole, Footprints und 3D-Modelle |
---|---|---|
DSBGA (YFF) | 30 | Ultra Librarian |
Bestellen & Qualität
- RoHS
- REACH
- Bausteinkennzeichnung
- Blei-Finish/Ball-Material
- MSL-Rating / Spitzenrückfluss
- MTBF-/FIT-Schätzungen
- Materialinhalt
- Qualifikationszusammenfassung
- Kontinuierliches Zuverlässigkeitsmonitoring
- Werksstandort
- Montagestandort
Support und Schulungen
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