The TLC5947 is a 24-channel, constant-current sink LED driver. Each channel is individually adjustable with 4096 pulse-width modulated (PWM) steps. PWM control is repeated automatically with the programmed grayscale (GS) data. GS data are written via a serial interface port. The current value of all 24 channels is set by a single external resistor.
The TLC5947 has a thermal shutdown (TSD) function that turns off all output drivers during an over-temperature condition. All of the output drivers automatically restart when the temperature returns to normal conditions.
Part number | Order | 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) |
---|---|---|---|---|---|---|---|---|---|
TLC5947 |
|
Internal GS Clock
PWM LED Driver Thermal Shutdown |
30 | 2 |
HTSSOP | 32
VQFN | 32 |
32HTSSOP: 68 mm2: 6.2 x 11 (HTSSOP | 32)
32VQFN: 25 mm2: 5 x 5 (VQFN | 32) |
Catalog | -40 to 85 | |
TLC5951 |
|
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 |
256 | 30 | 1.5 |
HTSSOP | 38
VQFN | 40 WQFN | 40 |
38HTSSOP: 101 mm2: 8.1 x 12.5 (HTSSOP | 38)
40VQFN: 36 mm2: 6 x 6 (VQFN | 40) 40WQFN: 36 mm2: 6 x 6 (WQFN | 40) |
Catalog | -40 to 85 |
TLC5952 |
|
Error Flag
Fault Detection LED Open Detection LED Short to Ground Detection LED Short to VLED Detection ON/OFF LED Driver Power Good Thermal Shutdown |
128 | 35 | 1 | HTSSOP | 32 | 32HTSSOP: 68 mm2: 6.2 x 11 (HTSSOP | 32) | Catalog | -40 to 85 |