Minimal Load:

See Page 14 of data sheet:

The maximum output current per channel is programmed by a single resistor, R(IREF), which is placed between

IREF pin and GND pin. The voltage on IREF is set by an internal band gap V(IREF) with a typical value of

1.24V. The maximum channel current is equivalent to the current flowing through R(IREF) multiplied by a factor of

31.5. The maximum output current per channel can be calculated by Equation 6:

Imax = V(iref)/R(iref) x 3.15

where:

V(IREF) = 1.24 V

R(IREF) = User-selected external resistor.

Imax must be set between 5 mA and 120 mA. The output current may be unstable if Imax is set lower than 5 mA.

Output currents lower than 5 mA can be achieved by setting Imax to 5 mA or higher and then using dot

correction.