DLPA3000 Datasheet, PDF (1/75 Pages) Texas Instruments – PMIC and High-Current LED Driver IC

Product
Folder
Sample &
Buy
Technical
Documents
Tools &
Software
Support &
Community
DLPA3000 PMIC and High-Current LED Driver IC
DLPA3000
DLPS052 – OCTOBER 2015
1 Features
•1 High-Efficiency, High-Current RGB LED Driver
• Integrated Buck Converter Enables up to 6-A LED
Driver Current
• RGB MOSFET Switches for Channel Selection
With Very Low On-Resistance
• 10-Bit Programmable Current per Channel
• Inputs for Selecting Color-Sequential RGB LEDs
• Generation of DMD High-Voltage Supplies
• Two High-Efficiency Buck Converters to Generate
the DLPC343x and DMD Supply
• Three High-Efficiency, 8-Bit Programmable Buck
Converters for FAN Driver Application or General
Power Supply (PWR6 currently supported, others
will be available in the future)
• Two LDOs Supplying Auxiliary Voltages
• Analog MUX for Measuring Internal and External
Nodes (such as a thermistor and reference levels)
• Monitoring/Protections: Thermal Shutdown, Hot
Die, Low-Battery, and Undervoltage Lockout
2 Applications
Portable DLP^® Pico™ Projectors
3 Description
The DLPA3000 is a highly-integrated power
management IC optimized for DLP Pico Projector
systems. The device is targeting accessory
applications up to several hundreds of lumen.
The DLPA3000 supports LED projectors up to 6 A
per LED, enabled by an integrated high efficiency
buck converter. On top of that, the low-ohmic RGB
switches support the sequencing of red, green, and
blue LEDs. The DLPA3000 contains five buck
converters with two dedicated for DLPC low-voltage
supplies. Another dedicated regulating supply
generates the three timing-critical DC supplies for the
DMD: V_BIAS, V_RST, and V_OFS.
The DLPA3000 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 (not all supported yet)
can be used, for example, to drive the projector FANs
or to make auxiliary supply lines. Two LDOs can be
used for a lower-current supply of up to 200 mA.
These LDOs are pre-defined to 2.5 V and 3.3 V.
Through the SPI, all blocks of the DLPA3000 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.
Device Information⁽¹⁾
PART NUMBER PACKAGE
BODY SIZE (NOM)
DLPA3000
HTQFP (100) 14.00 mm × 14.00 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Block Diagram
+ BAT -
CHARGER
DC
SUPPLIES
HDMI
RECEIVER
VGA
FLASH,
SDRAM
KEYPAD
SD CARD
READER,
VIDEO
DECODER,
etc
FRONT-
END
CHIP
- OSD
- Autolock
- Scaler
- uController
Projector Module
SYSPWR
TI Device
Non-TI Device
FAN(S)
PROJ_ON
DLPC343x
RESET_Z
FLASH
eDRAM
SENSORS
SUPPLIES
and
MONITORING
3x BUCK
CONVERTER
(GEN.PURP)
ILLUMINATION
DLPA3000
OPTICS
DIGITAL
CONTROL
DMD HIGH
VOLTAGE
GENERATION
MEASUREMENT
SYSTEM
DMD/DPP
BUCKS
AUX LDOs
720P
P_Tr_Ro_Pc_-e_Ds_Ms_Dor
Buck 1.1V
Buck 1.8V
LDO 2.5V
LDO 3.3V
CTRL / DATA
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.