The TPS61193 is a high-efficiency, low-EMI, easy-to-use LED
driver with flexibility to support a wide range of applications. It has three high-precision
current sinks that can be combined for higher current capability.
The TPS61193 has an integrated DC-DC supporting both boost and
SEPIC mode operation. The converter has adaptive output voltage control based on the LED current
sink headroom voltages. This feature minimizes the power consumption by adjusting the voltage to
lowest sufficient level in all conditions. For EMI control the DC-DC converter supports spread
spectrum for switching frequency and an external synchronization with dedicated pin.
The TPS61193 has wide input voltage range from
4.5 V to 40 V for robust support of different types of applications. The TPS61193
integrates extensive fault detection features. The device supports PWM brightness dimming ratio of
10 000:1 for 100-Hz input PWM frequency.
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