TLC5940 16-Channel LED Driver with Dot Correction
16-channel constant-current LED driver with 12-bit PWM grayscale control and 6-bit dot correction per channel. Supports daisy-chaining via serial interface for large LED arrays.
Aliase:TLC5940NT, 16-Channel PWM, LED Driver, Grayscale PWM
DIP-28 Top View
28 Pins
Pin-Tabelle28
| Pin | Signal / Name | Typ | Alternative Funktionen |
|---|---|---|---|
| 1 | OUT1 | Digital | LED Output Channel 1 (constant current sink) |
| 2 | OUT2 | Digital | LED Output Channel 2 (constant current sink) |
| 3 | OUT3 | Digital | LED Output Channel 3 (constant current sink) |
| 4 | OUT4 | Digital | LED Output Channel 4 (constant current sink) |
| 5 | OUT5 | Digital | LED Output Channel 5 (constant current sink) |
| 6 | OUT6 | Digital | LED Output Channel 6 (constant current sink) |
| 7 | OUT7 | Digital | LED Output Channel 7 (constant current sink) |
| 8 | OUT8 | Digital | LED Output Channel 8 (constant current sink) |
| 9 | OUT9 | Digital | LED Output Channel 9 (constant current sink) |
| 10 | OUT10 | Digital | LED Output Channel 10 (constant current sink) |
| 11 | OUT11 | Digital | LED Output Channel 11 (constant current sink) |
| 12 | OUT12 | Digital | LED Output Channel 12 (constant current sink) |
| 13 | OUT13 | Digital | LED Output Channel 13 (constant current sink) |
| 14 | OUT14 | Digital | LED Output Channel 14 (constant current sink) |
| 15 | OUT15 | Digital | LED Output Channel 15 (constant current sink) |
| 16 | XERR | Digital | Error Output (open-drain, LOD/TEF status) |
| 17 | SOUT | Digital | Serial Data Output (daisy-chain to next TLC5940 SIN) |
| 18 | GSCLK | Digital | Grayscale PWM Reference Clock Input |
| 19 | DCPRG | Digital | Dot Correction Programming Mode (HIGH = DC register, LOW = EEPROM) |
| 20 | IREF | Analog | Reference Current Setting (connect resistor to GND, Imax = 39.06/R) |
| 21 | VCC | Power | Positive Supply (3V - 5.5V) |
| 22 | GND | Ground | Ground |
| 23 | BLANK | Digital | Blank All Outputs (HIGH = all OFF, resets GS counter) |
| 24 | XLAT | Digital | Latch (rising edge latches serial data to GS/DC registers) |
| 25 | SCLK | Digital | Serial Clock Input (rising edge shifts data in) |
| 26 | SIN | Digital | Serial Data Input (MSB first) |
| 27 | VPRG | Digital | Programming Mode Select (LOW = GS, HIGH = DC) |
| 28 | OUT0 | Digital | LED Output Channel 0 (constant current sink) |