TLC5946PW

更新时间： 2024-09-16 04:28:07

品牌	Logo	应用领域
德州仪器 - TI		驱动器
页数	文件大小	规格书
35页	796K
描述
16-Channel, 12-Bit PWM LED Driver with 6-Bit Dot Correction

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TLC5946PW 数据手册

TLC5946

www.ti.com .......................................................................................................................................................... SLVS824B–MARCH 2008–REVISED JUNE 2008

16-Channel, 12-Bit PWM LED Driver with

6-Bit Dot Correction

FEATURES

APPLICATIONS

•

Monochrome, Multicolor, Full-Color LED

Displays

LED Signboards

Display Backlighting

•

16 Channels, Constant Current Sink Output

40-mA Capability (Constant Current Sink)

12-Bit (4096 Steps) Grayscale PWM Control

6-Bit (64 Steps) Dot Correction

•

LED Power-Supply Voltage up to 17 V

V_CC= 3.0 V to 5.5 V

DESCRIPTION

The TLC5946 is a 16-channel, constant current sink

LED driver. Each channel is individually adjustable

with 4096 pulse-width modulated (PWM) steps and

64 constant current sink steps for dot correction. The

dot correction adjusts the brightness variations

between LEDs. Both grayscale control and dot

correction are accessible via a serial interface. The

maximum current value of all 16 channels can be set

by a single external resistor.

Constant Current Accuracy:

–

Channel-to-Channel = ±1% (typ)

Device-to-Device = ±2% (typ)

•

30-MHz Data Transfer Rate

33-MHz Grayscale PWM Clock

Extended Serial Interface

CMOS Level I/O

The TLC5946 has two error information circuits: one

for LED open detection (LOD), and a thermal error

flag (TEF). LOD detects a broken or disconnected

LED during display period. TEF indicates an

over-temperature condition.

Schmitt Buffer Input

Readable Error Information:

–

Continuous Base LED Open Detection

(LOD)

–

Thermal Error Flag (TEF)

•

Noise Reduction:

4-Channel Grouped Delay

–

Operating Temperature: –40°C to +85°C

V_LED

V_CC

OUT0

OUT15

SOUT

OUT0

SIN

OUT15

SOUT

OUT

SIN

XERR

SCLK

XLAT

XERR

SCLK

XLAT

TLC5946

ICn

V_CC

Controller

MODE

IC1

MODE

BLANK

GSCLK

BLANK

VCC

XHALF

GND

VCC

XHALF

GND

BLANK

GSCLK

IREF

R_IREF

Typical Application Circuit (Multiple Daisy-Chained TLC5946s)

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas

Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

PowerPAD is a trademark of Texas Instruments, Inc.

All other trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

12 3 4 5 6 7...35

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TLC5946PW 替代型号

型号	品牌	替代类型	描述	数据表
TLC5946PWR	TI	类似代替	16-Channel, 12-Bit PWM LED Driver with 6-Bit Dot Correction

与TLC5946PW相关器件

型号	品牌	获取价格	描述	数据表
TLC5946PWG4	TI	获取价格	LED DISPLAY DRIVER, PDSO28, PLASTIC, TSSOP-28
TLC5946PWP	TI	获取价格	16-Channel, 12-Bit PWM LED Driver with 6-Bit Dot Correction
TLC5946PWPG4	TI	获取价格	16-Channel, 12-bit PWM LED Driver with 6-Bit Dot Correction 28-HTSSOP -40 to 85
TLC5946PWPR	TI	获取价格	16-Channel, 12-Bit PWM LED Driver with 6-Bit Dot Correction
TLC5946PWPRG4	TI	获取价格	LED DISPLAY DRIVER, PDSO28, GREEN, PLASTIC, HTSSOP-28
TLC5946PWR	TI	获取价格	16-Channel, 12-Bit PWM LED Driver with 6-Bit Dot Correction
TLC5946RHB	TI	获取价格	16-Channel, 12-Bit PWM LED Driver with 6-Bit Dot Correction
TLC5946RHBR	TI	获取价格	16-Channel, 12-Bit PWM LED Driver with 6-Bit Dot Correction
TLC5946RHBRG4	TI	获取价格	具有 6 位点校正功能的 16 通道、12 位 PWM LED 驱动器 \| RHB \| 3
TLC5946RHBT	TI	获取价格	16-Channel, 12-Bit PWM LED Driver with 6-Bit Dot Correction

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