Highly-integrated power management IC optimized for DLP pico projector systems
06-01-2016 |
Texas Instruments
|
Power
This post is sponsored by Texas Instruments.
The DLPA3005 from Texas Instruments (TI) is a highly-integrated power
management IC optimized for DLP Pico Projector systems. It supports LED
projectors up to 16A per LED, enabled by an integrated high efficiency buck
controller.
Additionally, the drivers control the RGB switches, supporting the
sequencing of R, G, and B LEDs. The DLPA3005 contains five buck converters,
two of which are dedicated for DLPC low voltage supplies. Another dedicated
regulating supply generates the three timing-critical DC supplies for the
DMD: VBIAS, VRST, and VOFS.
The DLPA3005 contains several auxiliary blocks which can be used in a
flexible way. This enables a tailor-made Pico Projector system. Three 8-bit
programmable buck converters can be used, for instance, to drive rgb
projector FANs or to make auxiliary supply lines. General Purpose Buck2
(PWR6) currently supported, others may be available in the future. Two LDOs
can be used for a lower-current supply, up to 200 mA. The LDOs are
pre-defined to 2.5V and 3.3V.
Through the SPI, all blocks of the DLPA3005 can be addressed. Features
included are the generation of the system reset, power sequencing, input
signals for sequentially selecting the active LED, IC self-protections, and
an analog MUX for routing analog information to an external ADC, says the
company.