DLP391TPFSB datasheet(31/46 Pages) TI2

31 / 46 page

7 Application and Implementation

Note

Information in the following applications sections is not part of the TI component specification,

and TI does not warrant its accuracy or completeness. TI’s customers are responsible for

determining suitability of components for their purposes, as well as validating and testing their design

implementation to confirm system functionality.

7.1 Application Information

DMDs are spatial light modulators that reflect incoming light from an illumination source to one of two directions,

with the primary direction being into a projection or collection optic. Each application is derived primarily from the

optical architecture of the system and the format of the data coming into the DLPC8445V controller. The high tilt

pixel in the bottom-illuminated DMD increases brightness performance and enables a smaller system footprint

for thickness-constrained applications. Typical applications using the DLP391TP include mobile smart TVs and

digital signage.

DMD power-up and power-down sequencing is strictly controlled by the DLPA3085 / DLPA3082 . Refer to

the Power Supply Recommendations for power-up and power-down specifications. For reliable operation, the

DLP391TP DMD must always be used with the DLPC8445V controller and a DLPA3085 / DLPA3082 PMIC.

7.2 Typical Application

The DLP391TP DMD, combined with DLPC8445V digital controller and a power management device, provides

full 4K UHD resolution for bright, colorful display applications. See Figure 7-1, which shows the system

components needed along with the LED configuration of the DLP 0.39" 4K UHD chipset. The components

include the DLP391TP DMD, the DLPC8445V display controller, and the DLPA3085 / DLPA3082 PMIC and LED

driver.

DLPC

Primary

DLPA

PMIC

TI DLP chipset

Third party component

VBIAS, VOFFSET, VRESET

SYSPWR (14.5 V to 20 V)

PWRGOOD

LS Interface

PROJ_ON

Vx1

DSI

4-Port SubLVDS

GPIO (PROJ_ON)

GPIO

SPI BUS (Ctrl) (4)

POSENSE

Front End

Device

Vx1 or DSI:

3840 × 2160

@ 60Hz

USB Mux

Supply

VSPI

1.8 V

1.1

Reg

0.8 V @ 3 A

for DLPC

LDO 2

LED_SEL (2)

1.8

Reg

USB Camera

Actuator

Driver

4-Position

Actuator

Flash

SPI(4)

FLSH

3D L/R

Fan or

programmable DC supply

RESETZ

INITZ

Reg

1.8 V @ 3 A for

DMD and DLPC

LDO 1

3.3 V @ 2 A

2.5 V

DLP

4K UHD DMD

VLED

RLIM current sense

SYSPWR

(3)

1.21 V

1.8 V

3.3 V

1.15 V

USB 2.0

1.8 V

EEPROM

SPI (2)

2C BUSY

Figure 7-1. Typical 4K UHD LED Application Diagram

www.ti.com

DLP391TP

DLPS289A – JUNE 2025 – REVISED SEPTEMBER 2025

Submit Document Feedback

Product Folder Links: DLP391TP

DLP391TPFSB Scheda tecnica(PDF) 31 Page - Texas Instruments

DLP391TPFSB Scheda tecnica(HTML) 31 Page - Texas Instruments

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46

Scheda tecnica Scarica

Link URL