Delta Electronics DNS User Manual

Delphi DNS, Non-Isolated Point of Load

FEATURES

 High efficiency: 94% @ 5.0Vin, 3.3V/6A out

 Small size and low profile: (SIP)

25.4 x 12.7 x 6.7mm (1.00”x 0.50”x 0.26”)

 Single-In-Line (SIP) packaging

 Standard footprint

 Voltage and resistor-based trim

 Pre-bias startup

 Output voltage tracking

 No minimum load required

 Output voltage programmable from

0.75Vdc to 3.3Vdc via external resistor

 Fixed frequency operation

 Input UVLO, output OTP, OCP

 Remote on/off

 ISO 9001, TL 9000, ISO 14001, QS9000,

OHSAS18001 certified manufacturing

facility

 UL/cUL 60950 (US & Canada) Recognized,

and TUV (EN60950) Certified

 CE mark meets 73/23/EEC and 93/68/EEC

directives

DC/DC Power Modules: 2.8-5.5Vin, 0.75-3.3V/6Aout

The Delphi Series DNS, 2.8-5.5V input, single output, non-isolated

Point of Load DC/DC converters are the latest offering from a world

leader in power systems technology and manufacturing -- Delta

Electronics, Inc. The DNS series provides a programmable output

voltage from 0.75V to 3.3V using an external resistor and has flexible

and programmable tracking features to enable a variety of startup

voltages as well as tracking between power modules. This product

family is available in surface mount or SIP packages and provides up

to 6A of output current in an industry standard footprint. With creative

design technology and optimization of component placement, these

converters possess outstanding electrical and thermal performance,

as well as extremely high reliability under highly stressful operating

conditions.

OPTIONS

 Negative on/off logic

 Tracking feature

 SIP package

APPLICATIONS

 Telecom / DataCom

 Distributed power architectures

 Servers and workstations

 LAN / WAN applications

 Data processing applications

DATASHEET DS_DNS04SIP06_07172008D

TECHNICAL SPECIFICATIONS

(TA = 25°C, airflow rate = 300 LFM, V

PARAMETE R NOTES and CONDITIONS DNS04S0A0R06PFD

Min. Typ. Max. Units

ABSOLUTE MAXIMUM RATINGS

Input Voltage (Continuous) 0 5.8 Vdc

Tracking Voltage Vin,max Vdc Operating Temperature Refer to Figure 44 for measuring point -40 125 °C Storage Temperature -55 125 °C

INPUT CHARACTERISTICS

Operating Input Voltage Input Under-Voltage Lockout

Turn-On Voltage Threshold 2.2 V

Turn-Off Voltage Threshold 2.0 V Maximum Input Current Vin=2.8V to 5.5V, Io=Io,max 6 A No-Load Input Current 70 mA Off Converter Input Current 5 Inrush Transient Vin=2.8V to 5.5V, Io=Io,min to Io,max 0.1 A2S Recommended Inout Fuse 6 A

OUTPUT CHARACTERISTICS

Output Voltage Set Point Vin=5V, Io=Io, max -2.0 Vo,set +2.0 Output Voltage Adjustable Range 0.7525 3.63 V Output Voltage Regulation

Over Line Vin=2.8V to 5.5V 0.3 % Vo,set Over Load Io=Io,min to Io,max 0.4 % Vo,set Over Temperature Ta=-40℃ to 85℃ 0.8 % Vo,set

Total Output Voltage Range Over sample load, line and temperature -3.0 +3.0 % Vo,set Output Voltage Ripple and Noise 5Hz to 20MHz bandwidth

Peak-to-Peak Full Load, 1µF ceramic, 10µF tantalum 40 60 mV

RMS Full Load, 1µF ceramic, 10µF tantalum 10 Output Current Range 0 6 A Output Voltage Over-shoot at Start-up Vout=3.3V 1 % Vo,set Output DC Current-Limit Inception 220 % Io Output Short-Circuit Current (Hiccup Mode) Io,s/c 3.5 Adc

DYNAMIC CHARACTERISTICS

Dynamic Load Response 10µF Tan & 1µF Ceramic load cap, 2.5A/µs, Vin=5V

Positive Step Change in Output Current 50% Io, max to 100% Io, max 160 mV Negative Step Change in Output Current 100% Io, max to 50% Io, max 160 mV Settling Time to 10% of Peak Deviation 25 µs

Turn-On Transient Io=Io.max

Start-Up Time, From On/Off Control Von/off, Vo=10% of Vo,set 2 ms Start-Up Time, From Input Vin=Vin,min, Vo=10% of Vo,set 2 Output Voltage Rise Time Time for Vo to rise from 10% to 90% of Vo,set 2 5 ms

Output Capacitive Load

EFFICIENCY

Vo=3.3V Vo=2.5V Vin=5V, 100% Load 91.5 % Vo=1.8V Vin=5V, 100% Load 89.0 % Vo=1.5V Vin=5V, 100% Load 88.0 % Vo=1.2V Vin=5V, 100% Load 86.0 % Vo=0.75V Vin=5V, 100% Load 81.0 %

FEATURE CHARACTERISTICS

Switching Frequency 300 kHz ON/OFF Control, (Negative logic)

Logic Low Voltage Module On, Von/off -0.2 0.3 V

Logic High Voltage Module Off, Von/off 1.5 Vin,max V

Logic Low Current Module On, Ion/off 10 µA

Logic High Current Module Off, Ion/off 0.2 1 mA ON/OFF Control, (Positive Logic)

Logic High Voltage Module On, Von/off Vin,max V

Logic Low Voltage Module Off, Von/off -0.2 0.3 V

Logic Low Current Module On, Ion/off 0.2 1 mA

Logic High Current Module Off, Ion/off 10 µA Tracking Slew Rate Capability 0.1 2 V/msec Tracking Delay Time Delay from Vin.min to application of tracking voltage 10 ms Tracking Accuracy Power-up 2V/mS 100 200 mV Power-down 1V/mS 200 400 mV

GENERAL SPECIFICATIONS

MTBF Io=80% of Io, max; Ta=25°C 11.52 M hours Weight 4 grams Over-Temperature Shutdown Refer to Figure 45 for measuring point 130 °C

= 2.8Vdc and 5.5Vdc, nominal Vout unless otherwise noted.)

Vout ≦ Vin –0.5

Full load; ESR ≧1mΩ Full load; ESR ≧10mΩ

Vin=5V, 100% Load 94.0 %

2.8 5.5 V

1000 µF 3000 µF

% Vo,set

DS_DNS04SIP06A_07172008

ELECTRICAL CHARACTERISTICS CURVES

EFFICIENCY(%)

123456

LOAD (A)

4.5V

5.5V

EFFICIENCY(%)

5.5V

123456

LOAD (A)

Figure 1: Converter efficiency vs. output current (3.3V out)

EFFICIENCY(%)

123456

LOAD (A)

Figure 3: Converter efficiency vs. output current (1.8V out)

EFFICIENCY(%)

123456

LOAD (A)

2.8V

5.5V

2.8V

5.5V

Figure 2: Converter efficiency vs. output current (2.5V out)

EFFICIENCY(%)

123456

LOAD (A)

Figure 4: Converter efficiency vs. output current (1.5V out)

EFFICIENCY(%)

123456

LOAD (A)

2.8V

5.5V

2.8V

5.5V

Figure 5: Converter efficiency vs. output current (1.2V out)

DS_DNS04SIP06A_07172008

Figure 6: Converter efficiency vs. output current (0.75V out)

ELECTRICAL CHARACTERISTICS CURVES (CON.)

Figure 7: Output ripple & noise at 3.3Vin, 2.5V/6A out

Figure 8: Output ripple & noise at 3.3Vin, 1.8V/6A out

Figure 9: Output ripple & noise at 5Vin, 3.3V/6A out

Figure 11: Turn on delay time at 3.3Vin, 2.5V/6A out

DS_DNS04SIP06A_07172008

Figure 10: Output ripple & noise at 5Vin, 1.8V/6A out

Figure 12: Turn on delay time at 3.3Vin, 1.8V/6A out

ELECTRICAL CHARACTERISTICS CURVES (CON.)

Figure 13: Turn on delay time at 5Vin, 3.3V/6A out

Figure 15: Turn on delay time at remote turn on 5Vin, 3.3V/16A

out

Figure 14: Turn on delay time at 5Vin, 1.8V/6A out

Figure 16: Turn on delay time at remote turn on 3.3Vin, 2.5V/16A

out

Figure 17: Turn on delay time at remote turn on with external capacitors (Co= 5000 µF) 5Vin, 3.3V/16A out

DS_DNS04SIP06A_07172008

Figure 18: Turn on delay time at remote turn on with external

capacitors (Co= 5000 µF) 3.3Vin, 2.5V/16A out

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