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Documents TPS92691, TPS92691-Q1
SLVSD68 – DECEMBER 2015 TPS92691/-Q1 Multi-Topology LED Driver With Rail-to-Rail Current Sense Amplifier
1 Features 3 Description The TPS92691/-Q1 is a versatile LED controller that
can support a range of step-up or step-down driver
topologies. The device implements a fixed-frequency
peak current mode control technique with
programmable
switching
frequency,
slope
compensation, and soft-start timing. It incorporates a
high voltage (65-V) rail-to-rail current sense amplifier
that can directly measure LED current using either a
high-side or a low-side series sense resistor. The
amplifier is designed to achieve low input offset
voltage and attain better than В±3% LED current
accuracy over junction temperature range of 25В°C to
140В°C and output common-mode voltage range of 0 …
