Delta Electronics DNM Technical Information

Evaluation Procedure (DEP-001 A) The Delphi DNM and DNL Series of SIP type POL converters The DNM and DNL, 2.4~5.5V or 10~14V input,programmable out

For DNM12xx and DNL12xx series ()7525.00667.07.0−×−= VoutVtrim V For example, to program the output voltage of a DNL12 module to 3.3 Vdc, Vtrim is c

11 8.2.6 Voltage Tracking The DNM/DNL family was designed for applications that have output voltage tracking requirements during power-up and power

12 Figure 4: Sequential Power up Figure 5: Sequential Power down Ratio-Metric Implementation Ratio–metric is implemented by the selection of

For Ratio-Metric applications that need the PS1 and PS2 outputs arrive regulation set point at same time, use equation 1 to calculate R1, set △ V=V

14 For example, the PS1 Voset,PS1=5V, the PS2 Voset,PS2=3.3V, R1 is calculated as follows: KKR 303.1020*32.1]32.1)3.13.3[(1 =−−= Ω Figure 9.

15 For type C (DNXXX0A0XXXX C), the simultaneous tracking can be accomplished by putting R1 equal to 30.1K Ω through VoPS1 to the TRACK pin of PS2. F

16 Notes on the use of Track function: 1. For proper voltage tracking, first, The ENABLE On/Off pin of the PS2 module is leftunconnected (or tied t

Test 1) Turn on the fan. 2) Adjust the input voltage to the desired operating point. 3) Set the electronic or resistive load at 50% of maximum lo

4. Connect a scope probe from channel 1 between the on/off control pin and referenceground (SGND) on the Evaluation Board. 5. Set channel 2 on the

Appendix A- Evaluation Board Schematic 19

2 3.0 Equipment Required 3.1 A DC Power Supply 0 - 20 V @ 0 - 20A (Agilent 6574A 0 -60V/0 - 35A or equivalent). 3.2 An oscilloscope (Tektronix T

Appendix B - Evaluation Board Layout (Top View) Appendix C - Evaluation Board Layout (Bottom View) CONTACT DATA: www.de

3 4.1 Connect one lead from the “+” lead of the DC source (See Item 3.1) to the “20A” terminal of the first multi-meter DVM1 (See Item 3.3). Then conn

4 6.0 Tests Performed The following tests are performed at room temperature (+25 ℃). 6.1 Input Characteristics  Input Voltage Range.  Under-Vol

5 5) SW2 is used to enable or disable the converter. For positive logic module, When SW2 is pose for the ON position, the converter is ON, and SW2

6 8.0 Tests and Evaluation 8.1 Input Characteristics 8.1.1 Input Voltage Range and Under-Voltage Lockout The DNM04xx and DNL04xx Series of DC/DC

7 8.2 Output Characteristics 8.2.1 Line Regulation Line Regulation Deviation is defined as the change in output voltage caused by varying the input

8 8.2.4 Output Voltage Set-point Programming (1) Output Voltage Set-Point Adjustment by external resistor Output Voltage Set-point Programming can

Table 2. Vo,set Rset (kΩ) R33 Recommend Value, R//R 0.7525 Open Open 1.2 22.464 23.7k//432k 1.5 13.047 14.0k//191k 1.8 9.024 9.53k//169k 2.