DLPA3005 Datasheet, PDF (1/75 Pages) Texas Instruments – PMIC and High-Current LED Driver IC

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DLPA3005 PMIC and High-Current LED Driver IC
DLPA3005
DLPS071 – OCTOBER 2015
1 Features
•1 High-Efficiency, High-Current RGB LED Driver
• Drivers for External Buck FETs up to 16 A
• Drivers for External RGB Switches
• 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. General Purpose Buck2 (PWR6
currently supported, others may 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
(UVLO)
2 Applications
Portable DLP^® Pico™ Projectors
3 Description
The DLPA3005 is a highly-integrated power
management IC optimized for DLP^® Pico™ Projector
systems. The DLPA3005 supports LED projectors up
to 16 A 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. These LDOs are pre-
defined to 2.5 V and 3.3 V.
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.
Device Information⁽¹⁾
PART NUMBER PACKAGE
BODY SIZE (NOM)
DLPA3005
HTQFP (100) 14.00 mm × 14.00 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
System Block Diagram
+ BAT -
CHARGER
DC
SUPPLIES
HDMI
RECEIVER
VGA
FLASH,
SDRAM
KEYPAD
SD CARD
READER,
VIDEO
DECODER,
etc
FRONT-
END
CHIP
- OSD
- Autolock
- Scaler
- Deinterlacer
- KS Corr
- uController
Projector Module
SYSPWR
FLASH
DLPC3439
eDRAM
DLPC3439
eDRAM
FAN(S)
PROJ_ON
RESET_Z
SENSORS
FLASH
SUPPLIES
and
MONITORING
3x BUCK
CONVERTER
(GEN.PURP)
ILLUMINATION
DLPA3005
External
Power
FETs
DIGITAL
CONTROL
DMD HIGH
VOLTAGE
GENERATION
MEASUREMENT
SYSTEM
DMD/DPP
BUCKS
AUX LDOs
Buck 1.1V
Buck 1.8V
LDO 2.5V
LDO 3.3V
CTRL / DATA
OPTICS
1080P
P_Tr_Ro_Pc_-e_Ds_Ms_Dor
TI Device
Non-TI Device
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.