Delta DNM - Manuals

Delta DNM – Manual in PDF format online.

Manuals:

Manual

Manual Delta DNM

Summary

Page 2 - Equipment Required

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 TDS 3034 or equivalent) 4 Channel 300 MHz, equipped with a x1 scope probe, a x10 scope probe, and two BNC cables (length less than 20 inches/500mm) 3.3 Digit...

Page 3 - Thermal Management of the Converter

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 connect one lead from the “Common” of the DVM1 to the “Vin” pin of the Evaluation Board. DVM1 is used to measure the input current. 4.2 Connect one wire f...

Page 4 - Efficiency; DNM

4 6.0 Tests Performed The following tests are performed at room temperature (+25 ℃ ). 6.1 Input Characteristics Input Voltage Range. Under-Voltage Lockout. No Load Input Current. 6.2 Output Characteristics Line Regulation. Load Regulation. Output Regulation. Output Voltage Set-point Programming Outp...

Page 5 - SW3 Function table; ON; Initial Power Up

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 is pose for the OFF position, the converter is OFF. For negative logic module, When SW2 is pose for the ON position, the converter is OFF, and SW2 is pos...

Page 7 - the 20 MHz bandwidth-limit option on the scope.

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 voltage over a specified range while the output load and temperature remain constant. Test 1) Turn on the fan. 2) Set the output power to the desired op...

Page 8 - Evaluation board is R33.; Vo; calculation of Rset:

8 8.2.4 Output Voltage Set-point Programming (1) Output Voltage Set-Point Adjustment by external resistor Output Voltage Set-point Programming can be carried out by using the external program resistor connect between TRIM pin to ground to set output voltage set-point from 0.75Vdc to 5Vdc, the locati...

Page 9 - Table 3; For DNM04xx and DNL04xx series; Vout

Table 2. Vo,set Rset (k Ω ) 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 2.5 5.009 5.23k//118k 3.3 3.122 3.16k//261k 5.0 1.472 1.5k//78.7k Test 1. Put the resistor to program the desired output voltage set point by follow Table 1 and ...

Page 10 - For DNM12xx and DNL12xx series; Test

For DNM12xx and DNL12xx series ( ) 7525 . 0 0667 . 0 7 . 0 − × − = Vout Vtrim V For example, to program the output voltage of a DNL12 module to 3.3 Vdc, Vtrim is calculated as follows: ( ) 53 . 0 7525 . 0 3 . 3 0667 . 0 7 . 0 = − × − = Vtrim V Table 4. : Vo,set adjustment range using external voltag...

Page 11 - tracks the PWRGD of; Figure 3. PS1 and PS2 track output voltage Sequential start-up

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-down. The devices have a TRACK pin to implement three types of tracking method: sequential, ratio-metric and simultaneous. TRACK simplifies the task of ...

Page 12 - Ratio-Metric Implementation; at internal circuit and only set

12 Figure 4: Sequential Power up Figure 5: Sequential Power down Ratio-Metric Implementation Ratio–metric is implemented by the selection of the resistor values of the voltage divider on the TRACK pin. Resistors R1 and R2, in Figure 6 determine the tracking method that is implemented. To simplify th...

Page 13 - Ratio–metric tracking Power up

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=Vo set,PS1 –Vo set,PS2 and △ V will be negative. The waveforms of power up and down are showed in Figures 7 and 8. K Vref Vref V Vo R PS set 20 * ] ) [( 1...

Page 14 - For example, the PS1 Vo; ), the simultaneous tracking can be accomplished by connecting

14 For example, the PS1 Vo set,PS1 =5V, the PS2 Vo set,PS2 =3.3V, R1 is calculated as follows: K K R 303 . 10 20 * 32 . 1 ] 32 . 1 ) 3 . 1 3 . 3 [( 1 = − − = Ω Figure 9. Ratio–metric tracking Power up Figure 10. Ratio–metric tracking Power down Simultaneous Implementation Similar to the ratio-metric...

Page 15 - Vref

15 For type C (DNXXX0A0XXXX C ), the simultaneous tracking can be accomplished by putting R1 equal to 30.1K Ω through Vo PS1 to the TRACK pin of PS2. Figure 12 shows the circuit diagram of Simultaneous start-up when Vo PS2 tracks the Vo PS1 (only for type C). R1 R2 TRACK Vo PS1 PS2 Vo PS2 PS1 Vin Vi...

Page 16 - Notes on the use of Track function:; The TRACK pin absolute maximum voltage cannot over the Vin.; equation for different tracking purpose.; Dynamic Characteristics; Imax

16 Notes on the use of Track function: 1. For proper voltage tracking, first, The ENABLE On/Off pin of the PS2 module is left unconnected (or tied to GND for negative logic modules or tied to VIN for positive logicmodules), so that the modules are ON by default and second applied input voltage to th...

Page 17 - sheet for the detailed information.; Test (Turn on the module by using the external switch); or suitable trigger point (referring to data sheet) on channel 2.

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 load. 4) Change channel 1 to scope probe and measure across the dynamic R . 5) Set the switch SW2 to the converter ON. 6) Set channel 2 on the oscilloscope t...

Page 18 - Pout = Iout × Vout

4. Connect a scope probe from channel 1 between the on/off control pin and reference ground (SGND) on the Evaluation Board. 5. Set channel 2 on the oscilloscope to be DC coupled and within appropriate range for the output voltage. 6. Connect a coaxial cable from channel 2 to BNC2 on the Evaluation B...

Page 19 - Appendix A- Evaluation Board Schematic

Page 20 - Warranty

Appendix B - Evaluation Board Layout (Top View) Appendix C - Evaluation Board Layout (Bottom View) CONTACT DATA: www.deltaww.com USA: Telephone: East Coast: (888) 335 8201 West Coast: (888) 335 8208 Fax: (978) 656 3964 Email: [email protected] Europe: Telephone: France: +33 1 6485 1212 Germany: +4...