SLDM-06D1Ax

17

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Rev. AC

17. DIGITAL ON/OFF

Please see the Digital Feature Descriptions section.

18. MONOTONIC START-UP AND SHUTDOWN

The SLDM-06D1Ax module has monotonic start-up and shutdown behavior for any combination of rated input voltage, output current and

operating temperature range.

19. STARTUP INTO PRE-BIASED OUTPUT

The SLDM-06D1Ax module can start into a prebiased output as long as the prebias voltage is 0.5V less than the set output voltage.

20. OUTPUT VOLTAGE PROGRAMMING

The output voltage of the module is programmable to any voltage from 0.6dc to 5.5Vdc by connecting a resistor between the Trim and SIG_GND

pins of the module. Certain restrictions apply on the output voltage set point depending on the input voltage. These are shown in the Output

Voltage vs. Input Voltage Set Point Area plot in Fig. 41. The Upper Limit curve shows that for output voltages lower than 1V, the input voltage

must be lower than the maximum of 14.4V. The Lower Limit curve shows that for output voltages higher than 0.6V, the input voltage needs to be

larger than the minimum of 3V.

Figure 41

Output Voltage vs. Input Voltage Set Point Area plot showing limits where the output voltage can be set for different input voltages.

Figure 42

Caution : Do not connect SIG_GND to GND elsewhere in the layout

Circuit configuration for programming output voltage using an external resistor.

TRIM

VS─

LOAD

ON/OFF

VS+

SIG_GND