TB62718AFG Ver la hoja de datos (PDF) - Marktech Optoelectronics

Número de pieza

componentes Descripción

Fabricante

TB62718AFG

Controller and Driver for Full-color LED Modules and Panels

Marktech Optoelectronics 

TB62718AFG

Details all dot adjustment setting using PWMCLK division (PI REG1 [7:5])

RESET

H

H

H

H

PI SEL

H

H

H

X

H

BCEN

H

H

H

H

L

PI REG1

[7:5]

PWMCLK

Divisor

Operation and Function

Notes

LLL

LLH

↑

↓

HHL

HHH

LLL

PWM CLK =

8/8 PWMCLK

(Hz)

7/8 PWMCLK

to

2/8 PWMCLK

PWMCLK =

1/8 PWMCLK

(Hz)

PWMCLK =

8/8 PWMCLK

(Hz)

The period of PWMCLK is set to

equal the change in the PWM

pulse width data. 1LSB.

When PI SEL = H is selected, 3

Variable does the frequency of bits on MSB sides are

PWMCLK to 1/8 of the minimal. It corresponding to set of standard

is set in 8 levels.

current adjustment by PWM

6-bit DAC performance

frequency dividing.

Maximum input: PWMCLK = 20

MHz

PI REG [7:5] varies the pulse

width of PWM data

The period of PWMCLK is set to corresponding to 1 LSB for eight

one-eighth the change in the

levels and adjusts brightness.

PWM pulse width data. 1 LSB. This setting values affects pulse

widths on all outputs.

The period of PWMCLK is set to

equal the change in the PWM

pulse width data. 1 LSB.

XXX

Unchanged

BCEN signal does not affect

PWMCLK frequency dividing.

Data input is still enabled if

BCEN = L.

Output current level reflects input

settings.

DAC3: Details of all dot adjustment setting for DAC3 (PI REG2 [4:0])

RESET

H

PI SEL

PI REG1

[4:0]

BCEN

H

HHHHH

H

Current

Rate

100%

(1.0)

Operation and Function

100% of base current value as

set using DAC1 and DAC2

current adjustment and DAC4 dot

adjustment

Notes

(0.9839) Any one of 32 levels in the range

↑

50%~100% of the current can be

HHHHL

set. (1 LSB = 1.61%)

↑

1LSB = 5-bit DAC performance

When PI SEL = H is selected,

H

H

H

±1.61% 1LSB variation: ±1.61%

5 bits on LSB side are

(±0.0161) Non linearity error: ±1/2LSB

corresponding to set of surface

↓

Differential non linearity error:

brightness adjustment.

LLLLH

↓

±1/2LSB

The output current can be set

(0.5161) (No guarantee for monotonicity) to one of 32 levels.

50% of base current value as set

H

H

LLLLL

H

50%

(0.5)

using DAC1 and DAC2 current

adjustment and DAC4 dot

adjustment

X

HHHHH

H

100%

(1.0)

Initial state after input of reset

signal: 100% of base current

value set as described above

H

X

HHHHH

L

100%

(1.0)

Initial state after input of DCEN

signal: 100% of base current

value set as described above

Data input is still enabled if

BCEN = L.

If BCEN = H, adjustment is

performed at the same time.

19

2005-04-20

Share Link: