TLC5940 带有 EEprom 点校正与灰度 PWM 控制的 16 通道 LED 驱动器 | 德州仪器 TI.com.cn

TLC5940
此产品已上市,且可供购买。 可提供某些产品的较新替代品。
带有 EEprom 点校正与灰度 PWM 控制的 16 通道 LED 驱动器

 

描述

The TLC5940 is a 16-channel, constant-current sink LED driver. Each channel has an individually adjustable 4096-step grayscale PWM brightness control and a 64-step, constant-current sink (dot correction). The dot correction adjusts the brightness variations between LED channels and other LED drivers. The dot correction data is stored in an integrated EEPROM. Both grayscale control and dot correction are accessible through a serial interface. A single external resistor sets the maximum current value of all 16 channels.

The TLC5940 features two error information circuits. The LED open detection (LOD) indicates a broken or disconnected LED at an output terminal. The thermal error flag (TEF) indicates an overtemperature condition.

特性

  • 16 Channels
  • 12 bit (4096 Steps) Grayscale PWM Control
  • Dot Correction
    • 6 bit (64 Steps)
    • Storable in Integrated EEPROM
  • Drive Capability (Constant-Current Sink)
    • 0 mA to 60 mA (VCC < 3.6 V)
    • 0 mA to 120 mA (VCC > 3.6 V)
  • LED Power Supply Voltage up to 17 V
  • VCC = 3 V to 5.5 V
  • Serial Data Interface
  • Controlled In-Rush Current
  • 30 MHz Data Transfer Rate
  • CMOS Level I/O
  • Error Information
    • LOD: LED Open Detection
    • TEF: Thermal Error Flag

参数

与其它产品相比 标牌LED显示驱动器 邮件 下载到电子表格中
Part number 立即下单 Features Analog dimming steps Data transfer rate (Typ) (MHz) Ch to ch accuracy (Typ) (+/- %) Package Group Package size: mm2:W x L (PKG) Rating Operating temperature range (C)
TLC5940 立即下单 Dot Correction
Error Flag
Fault Detection
LED Open Detection
LED Short to Ground Detection
LED Short to VLED Detection
PWM LED Driver
Power Good    
64     30     1     HTSSOP | 28
VQFN | 32    
28HTSSOP: 43 mm2: 4.4 x 9.7 (HTSSOP | 28)
32VQFN: 25 mm2: 5 x 5 (VQFN | 32)    
Catalog     -40 to 85    
TLC59401 立即下单 Dot Correction
Error Flag
Fault Detection
LED Open Detection
LED Short to Ground Detection
LED Short to VLED Detection
PWM LED Driver
Power Good    
64     30     1     HTSSOP | 28
VQFN | 32    
28HTSSOP: 43 mm2: 4.4 x 9.7 (HTSSOP | 28)
32VQFN: 25 mm2: 5 x 5 (VQFN | 32)    
Catalog     -40 to 85    
TLC5941 立即下单 Dot Correction
Error Flag
Fault Detection
LED Open Detection
LED Short to Ground Detection
LED Short to VLED Detection
PWM LED Driver
Power Good    
64     30     1     HTSSOP | 28
VQFN | 32    
28HTSSOP: 43 mm2: 4.4 x 9.7 (HTSSOP | 28)
32VQFN: 25 mm2: 5 x 5 (VQFN | 32)    
Catalog     -40 to 85    
TLC5943 立即下单 Error Flag
Fault Detection
LED Open Detection
LED Short to Ground Detection
LED Short to VLED Detection
PWM LED Driver
Power Good
Thermal Shutdown    
128     30     1.5     HTSSOP | 28
VQFN | 32    
28HTSSOP: 43 mm2: 4.4 x 9.7 (HTSSOP | 28)
32VQFN: 25 mm2: 5 x 5 (VQFN | 32)    
Catalog     -40 to 85    
TLC5944 无样片 Dot Correction
Error Flag
Fault Detection
LED Open Detection
LED Short to Ground Detection
LED Short to VLED Detection
PWM LED Driver
Power Good
Thermal Shutdown    
64     30     1     HTSSOP | 28
VQFN | 32    
28HTSSOP: 43 mm2: 4.4 x 9.7 (HTSSOP | 28)
32VQFN: 25 mm2: 5 x 5 (VQFN | 32)    
Catalog     -40 to 85    
TLC5945 立即下单 Dot Correction
Error Flag
Fault Detection
LED Open Detection
LED Short to Ground Detection
LED Short to VLED Detection
PWM LED Driver
Power Good    
64     30     1     HTSSOP | 28
VQFN | 32    
28HTSSOP: 43 mm2: 4.4 x 9.7 (HTSSOP | 28)
32VQFN: 25 mm2: 5 x 5 (VQFN | 32)    
Catalog     -40 to 85    
TLC5946 立即下单 Dot Correction
Error Flag
Fault Detection
LED Open Detection
LED Short to Ground Detection
LED Short to VLED Detection
PWM LED Driver
Power Good    
64     30     1     HTSSOP | 28
TSSOP | 28
VQFN | 32    
28HTSSOP: 43 mm2: 4.4 x 9.7 (HTSSOP | 28)
28TSSOP: 62 mm2: 6.4 x 9.7 (TSSOP | 28)
32VQFN: 25 mm2: 5 x 5 (VQFN | 32)    
Catalog     -40 to 85    
TLC59461 无样片 Dot Correction
Error Flag
Fault Detection
LED Open Detection
LED Short to Ground Detection
LED Short to VLED Detection
PWM LED Driver
Power Good    
64     30     1     HTSSOP | 28     28HTSSOP: 43 mm2: 4.4 x 9.7 (HTSSOP | 28)     Catalog     -40 to 85    
TLC59482 立即下单 PWM LED Driver     64     33     1     SSOP | 24     24SSOP: 52 mm2: 6 x 8.65 (SSOP | 24)     Catalog     -40 to 85    
TLC5948A 立即下单 Dot Correction
Error Flag
Fault Detection
LED Open Detection
LED Short to Ground Detection
LED Short to VLED Detection
PWM LED Driver
Power Good
Thermal Shutdown    
128     33     1.5     HTSSOP | 24
SSOP | 24    
24HTSSOP: 34 mm2: 4.4 x 7.8 (HTSSOP | 24)
24SSOP: 52 mm2: 6 x 8.65 (SSOP | 24)    
Catalog     -40 to 85    
TLC5949 立即下单 Error Flag
Fault Detection
LED Open Detection
LED Short to Ground Detection
LED Short to VLED Detection
PWM LED Driver
Power Good
Thermal Shutdown    
128     33     0.6     HTSSOP | 24
SSOP | 24    
24HTSSOP: 34 mm2: 4.4 x 7.8 (HTSSOP | 24)
24SSOP: 52 mm2: 6 x 8.65 (SSOP | 24)