TLC5948A 16-Ch ES-PWM LED Driver, 7-Bit Dot Cor, 7-Bit Global Brightness, Power Save Mode, Full Diagnostics | TI.com

TLC5948A (ACTIVE)

16-Ch ES-PWM LED Driver, 7-Bit Dot Cor, 7-Bit Global Brightness, Power Save Mode, Full Diagnostics

 

Description

The TLC5948A is a 16-channel, constant-current sink LED driver. Each channel has an individually-adjustable, pulse width modulation (PWM) grayscale (GS) brightness control with 65,536 steps and 128 steps of constant-current dot correction (DC). DC adjusts brightness deviation between channels. All channels have a 128-step global brightness control (BC). BC adjusts brightness deviation with other LED drivers. GS, DC, and BC data are accessible with a serial interface port.

The TLC5948A has six error flags: LED open detection (LOD), LED short detection (LSD), output leakage detection (OLD), reference current terminal short flag detection (ISF), pre-thermal warning (PTW), and thermal error flag (TEF). The error detection results can be read with a serial interface port.

Features

  • 16 Constant-Current Sink Output Channels
  • Sink Current Capability with Maximum DC and BC Data:
    • 2 mA to 45 mA (VCC ≤ 3.6 V)
    • 2 mA to 60 mA (VCC > 3.6 V)
  • Dot Correction (DC):
    • 7-Bit (128 Steps) with 0% to 100% Range
  • Global Brightness Control (BC):
    • 7-Bit (128 Steps) with 25% to 100% Range
  • Grayscale Control (GS) with Enhanced Spectrum or Conventional PWM:
    • 16-Bit (65,536 Steps)
  • LED Power-Supply Voltage: Up to 10 V
  • VCC: 3.0 V to 5.5 V
  • Constant-Current Accuracy:
    • Channel-to-Channel: ±0.6% (typ), ±2% (max)
    • Device-to-Device: ±1% (typ), ±4% (max)
  • Data Transfer Rate: 33 MHz
  • Grayscale Control Clock: 33 MHz
  • Auto Display Repeat and Auto Data Refresh
  • Display Timing Reset
  • Power-Save Mode to Minimize VCC Current
  • LOD and LSD with Invisible Detection
    Mode (IDM)
  • Output Leakage Detection (OLD)
  • Current Reference Terminal Short Flag (ISF)
  • Thermal Shutdown (TSD) and Error Flag (TEF)
  • Pre-Thermal Warning (PTW)
  • Four-Channel Grouped Delay Switching to Prevent Inrush Current
  • Operating Temperature: –40°C to +85°C

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Parametrics Compare all products in Signage LED display drivers

 
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)
TLC5948A TLC59283 TLC5940 TLC59401 TLC5941 TLC5943 TLC5944 TLC5945 TLC5946 TLC59461 TLC59482 TLC5949 TLC5957 TLC59581 TLC59582 TLC6946
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    
ON/OFF LED Driver
Pre-Charge FET    
Dot Correction
Error Flag
Fault Detection
LED Open Detection
LED Short to Ground Detection
LED Short to VLED Detection
PWM LED Driver
Power Good    
Dot Correction
Error Flag
Fault Detection
LED Open Detection
LED Short to Ground Detection
LED Short to VLED Detection
PWM LED Driver
Power Good    
Dot Correction
Error Flag
Fault Detection
LED Open Detection
LED Short to Ground Detection
LED Short to VLED Detection
PWM LED Driver
Power Good    
Error Flag
Fault Detection
LED Open Detection
LED Short to Ground Detection
LED Short to VLED Detection
PWM LED Driver
Power Good
Thermal Shutdown    
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    
Dot Correction
Error Flag
Fault Detection
LED Open Detection
LED Short to Ground Detection
LED Short to VLED Detection
PWM LED Driver
Power Good    
Dot Correction
Error Flag
Fault Detection
LED Open Detection
LED Short to Ground Detection
LED Short to VLED Detection
PWM LED Driver
Power Good    
Dot Correction
Error Flag
Fault Detection
LED Open Detection
LED Short to Ground Detection
LED Short to VLED Detection
PWM LED Driver
Power Good    
PWM LED Driver     Error Flag
Fault Detection
LED Open Detection
LED Short to Ground Detection
LED Short to VLED Detection
PWM LED Driver
Power Good
Thermal Shutdown    
48CH LED Driver
Error Flag
Fault Detection
LED Open Detection
LED Short to Ground Detection
LED Short to VLED Detection
PWM LED Driver
Thermal Shutdown    
48CH LED Driver
Error Flag
Fault Detection
LED Open Detection
LED Short to Ground Detection
LED Short to VLED Detection
PWM LED Driver
Pre-Charge FET    
48CH LED Driver
Error Flag
Fault Detection
LED Open Detection
LED Short to Ground Detection
LED Short to VLED Detection
PWM LED Driver
Thermal Shutdown    
Fault Detection
LED Open Detection
PWM LED Driver
Pre-Charge FET
Thermal Shutdown    
128       64     64     64     128     64     64     64     64     64     128     512     512     512     128    
33     35     30     30     30     30     30     30     30     30     33     33     33     25     25     33    
1.5     1     1     1     1     1.5     1     1     1     1     1     0.6     1     1     1     1.5    
HTSSOP | 24
SSOP | 24    
SSOP | 24
VQFN | 24    
HTSSOP | 28
VQFN | 32    
HTSSOP | 28
VQFN | 32    
HTSSOP | 28
VQFN | 32    
HTSSOP | 28
VQFN | 32    
HTSSOP | 28
VQFN | 32    
HTSSOP | 28
VQFN | 32    
HTSSOP | 28
TSSOP | 28
VQFN | 32    
HTSSOP | 28     SSOP | 24     HTSSOP | 24
SSOP | 24    
QFN | 56     QFN | 56     QFN | 56     SSOP | 24    
24HTSSOP: 50 mm2: 6.4 x 7.8 (HTSSOP | 24)
24SSOP: 52 mm2: 6 x 8.65 (SSOP | 24)    
24SSOP: 52 mm2: 6 x 8.65 (SSOP | 24)
24VQFN: 16 mm2: 4 x 4 (VQFN | 24)    
28HTSSOP: 62 mm2: 6.4 x 9.7 (HTSSOP | 28)
32VQFN: 25 mm2: 5 x 5 (VQFN | 32)    
28HTSSOP: 62 mm2: 6.4 x 9.7 (HTSSOP | 28)
32VQFN: 25 mm2: 5 x 5 (VQFN | 32)    
28HTSSOP: 62 mm2: 6.4 x 9.7 (HTSSOP | 28)
32VQFN: 25 mm2: 5 x 5 (VQFN | 32)    
28HTSSOP: 62 mm2: 6.4 x 9.7 (HTSSOP | 28)
32VQFN: 25 mm2: 5 x 5 (VQFN | 32)    
28HTSSOP: 62 mm2: 6.4 x 9.7 (HTSSOP | 28)
32VQFN: 25 mm2: 5 x 5 (VQFN | 32)    
28HTSSOP: 62 mm2: 6.4 x 9.7 (HTSSOP | 28)
32VQFN: 25 mm2: 5 x 5 (VQFN | 32)    
28HTSSOP: 62 mm2: 6.4 x 9.7 (HTSSOP | 28)
28TSSOP: 62 mm2: 6.4 x 9.7 (TSSOP | 28)
32VQFN: 25 mm2: 5 x 5 (VQFN | 32)    
28HTSSOP: 62 mm2: 6.4 x 9.7 (HTSSOP | 28)     24SSOP: 52 mm2: 6 x 8.65 (SSOP | 24)     24HTSSOP: 50 mm2: 6.4 x 7.8 (HTSSOP | 24)
24SSOP: 52 mm2: 6 x 8.65 (SSOP | 24)    
56QFN: 64 mm2: 8 x 8 (QFN | 56)     56QFN: 64 mm2: 8 x 8 (QFN | 56)     56QFN: 64 mm2: 8 x 8 (QFN | 56)     24SSOP: 52 mm2: 6 x 8.65 (SSOP | 24)    
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