JAJSFL0A June 2018 – January 2019 TLC6946 , TLC6948
PRODUCTION DATA.
The IREF resistor short protection (ISP) function prevents unwanted large currents from flowing though the constant-current output when the IREF resistor is shorted accidently. The TLC694x device turns off all output channels when the IREF pin voltage is lower than 0.19 V (typical). When the IREF pin voltage goes higher than 0.325 V (typical), the TLC694x device resumes normal operation.