DLPA2000
ZHCSCO5B –JUNE 2014–REVISED FEBRUARY 2018
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7 Detailed Description
7.1 Overview
The DLPA2000 is a power management and LED driver IC optimized for DLP video and data display systems
and meant for use in either embedded or accessory projector applications. DLPA2000 is part of the chipset
comprising of either DLP2010 (0.2 WVGA) DMD and DLPC3430/DLPC3435 controller or the DLP2010NIR (0.2
WVGA NIR) DMD and DLPC150 controller. The DLPA2000 contains a complete LED driver including high
efficiency power convertors. The DLPA2000 can supply up to 750 mA per LED. Integrated high-current switches
are included for sequentially selecting R, G, and B LEDs. The DLPA2000 also contains three regulated DC
supplies for the DMD reset circuitry: VBIAS, VRST and VOFS, as well as a regulated DC supply of 1.1 V and a load
switch for the 1.8 V to support the DLPC3430 or DLPC3435 controller. The DLPA2000 also contains a motor
driver which can be used to drive the focus lens motor. The DLPA2000 has a SPI used for setting the
configuration. Using SPI, currents can be set independently for each LED with 10-bit resolution. Other 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.
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