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TPS92550
www.ti.com SNVS806C – MAY 2012 – REVISED MAY 2013 TPS92550 450mA 14W Constant Current Buck LED Driver Micro-Module
Check for Samples: TPS92550 FEATURES DESCRIPTION The TPS92550 Constant Current Buck LED Driver
Micro-Module drives maximum 450mA LED current
up to 10 LEDs in a single string (maximum 14W). It
integrates all the power components including the
power inductor. The TPS92550 provides a full turnkey, highly efficient solution for wide range of single
string LED lighting applications with up to 96% power
efficiency. It accepts an input voltage ranging from
4.5V to 36V and delivers a 350mA LED current as
default. The LED current is adjustable from 300mA to
450mA by changing a single external resistor. 1 2 Integrated all Power Components Including
the Power Inductor
Wide Input Voltage Range : 4.5V–36V
Constant Switching Frequency at 400kHz
High Contrast Ratio (Minimum dimming
current pulse width < 16Вµs)
Drives up to 10 LEDs in Series at 36V Input
В±3.6% Typical LED Current Accuracy
LED Current Adjustable from 300mA to 450mA
Up to 96% Efficiency
TPS92550 Modules can be Connected in
Parallel for Higher Current Operation …
