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TB9911 - Switch-Mode LED Driver

Download the TB9911 datasheet PDF. This datasheet also covers the TB9911-Top variant, as both devices belong to the same switch-mode led driver family and are provided as variant models within a single manufacturer datasheet.

General Description

The TB9911 is a current mode control LED driver IC designed to control single switch PWM converters (buck, boost, buck-boost, or SEPIC), in a constant frequency or constant off-time mode.

Key Features

  • ※Switch mode controller for single switch drivers ○Buck ○Boost ○Buck-boost ○SEPIC ※Works with high side current sensing ※Closed loop control of output current ※High PWM dimming ratio ※Internal 250V linear regulator (can be extended using external zener diodes) ※Internal 2% Voltage Reference (0°C < TA < 85°C) ※Constant frequency or constant off-time operation ※Programmable slope compensation ※Enable & PWM dimming ※+0.2A/-0.4A gate drive ※Output short circuit protection ※Output over voltage protec.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (TB9911-Top-Best.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number TB9911
Manufacturer Top-Best
File Size 0.97 MB
Description Switch-Mode LED Driver
Datasheet download datasheet TB9911 Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
TB9911 Switch-Mode LED Driver IC with High Current Accuracy Features ※Switch mode controller for single switch drivers ○Buck ○Boost ○Buck-boost ○SEPIC ※Works with high side current sensing ※Closed loop control of output current ※High PWM dimming ratio ※Internal 250V linear regulator (can be extended using external zener diodes) ※Internal 2% Voltage Reference (0°C < TA < 85°C) ※Constant frequency or constant off-time operation ※Programmable slope compensation ※Enable & PWM dimming ※+0.2A/-0.