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LED Driver ICs Forum Discussions

vasiliki
Employee
25 sign-ins 5 questions asked First question asked
Employee
The pull-up resistor at ST-pin is calculated according to following equation:
RST > VREG/IST, where VREG is the pull-up voltage for the ST-pin (see IST in datasheet):
5319.attach

5320.attach

See following example:

  • ST is pulled-up to 5V
  • RST > 5V/IPD = 5V/1.5mA = 3.3kOhm. Considering tolerances a RST > 4.5kΩ is recommended.


For more information check the LITIX™ Linear TLE4242G webpage.
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