Datasheet

ManualsBrandsDELTA ELECTRONICS ManualsPSU ComponentsDC/DC converter (print) 0.75 Vdc, 5 Vdc 6 A 30 W No. of outputs: 1 x

DATASHEET

DS_DNS10SIP06_07182012

FEATURES

 High efficiency: 89.5%@ 12Vin, 3.3V/6A out

 Small size and low profile: (SIP)

25.4x 12.7x 6.67mm (1.00” x 0.50” x 0.26”)

 Standard footprint

 Voltage and resistor-based trim

 Pre-bias startup

 Output Voltage tracking

 No minimum load required

 Output voltage programmable from

0.75Vdc to 5Vdc via external resistor

 Fixed frequency operation (350KHz)

 Input UVLO, output OTP, OCP

 Remote ON/OFF

 ISO 9001, TL 9000, ISO 14001, QS 9000,

OHSAS 18001 certified manufacturing

facility

 UL/cUL 60950-1 (US & Canada)

Recognized, and TUV (EN60950-1)

certified.

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

directives

APPLICATIONS

 Telecom / DataCom

 Distributed power architectures

 Servers and workstations

 LAN / WAN applications

 Data processing applications

OPTIONS

 Negative on/off logic

 Tracking feature

 SIP package

Delphi DNS, Non-Isolated Point of Load

DC/DC Power Modules: 8.3~14Vin, 0.75~5.0V/6A out

The Delphi series DNS, 8.3~14V 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 5.0V

through an external trimming resistor. The DNS converters have flexible

and programmable tracking and sequencing features to enable a variety

of sequencing and tracking between several point of load power modules.

This product family is available in a surface mount or SIP package and

provides up to 6A of output current in an industry standard footprint and

pinout. With creative design technology and optimization of component

placement, these converters possess outstanding electrical and thermal

performance and extremely high reliability under highly stressful operating

conditions.

Summary of content (15 pages)

PAGE 1
FEATURES  High efficiency: 89.5%@ 12Vin, 3.3V/6A out  Small size and low profile: (SIP) 25.4x 12.7x 6.67mm (1.00” x 0.50” x 0.26”)  Standard footprint  Voltage and resistor-based trim  Pre-bias startup  Output Voltage tracking  No minimum load required  Output voltage programmable from 0.
PAGE 2
TECHNICAL SPECIFICATIONS (TA = 25°C, airflow rate = 300 LFM, Vin = 8.3Vdc and 14Vdc, nominal Vout unless otherwise noted.) PARAMETER NOTES and CONDITIONS DNS10S0A0R06NFD Min.
PAGE 3
ELECTRICAL CHARACTERISTICS CURVES 88 85 83 86 81 84 EFFICIEN CY(%) EFFICIEN CY(%) 79 77 75 73 71 82 80 78 8.3V 8.3V 69 67 14V 14V 65 1 2 3 4 5 12V 76 12V 74 1 6 2 3 Figure 1: Converter efficiency vs. output current (0.75V output voltage) 5 90 90 88 88 86 86 84 82 80 82 8.3V 12V 78 84 80 8.3V 78 12V 14V 76 14V 76 1 2 3 6 Figure 2: Converter efficiency vs. output current (1.
PAGE 4
ELECTRICAL CHARACTERISTICS CURVES 96 94 EFFICIEN CY(%) 92 90 88 86 8.3V 12V 84 13.2V 82 1 2 3 4 5 6 LOAD (A) Figure 7: Converter efficiency vs. output current (5.0V output voltage) Figure 8: Output ripple & noise at 12Vin, 2.5V/6A out Figure 9: Output ripple & noise at 12Vin, 5.0V/6A out Vin Remote on/off Vo Vo Figure 10: Turn on delay time at 12vin, 5.0V/6A out Figure 11: Turn on delay time at Remote On/Off, 5.
PAGE 5
ELECTRICAL CHARACTERISTICS CURVES Remote on/off Vo Figure 12: Turn on Using Remote On/Off with external capacitors (Co= 3000 µF), 5.0V/6A out Figure 13: Typical transient response to step load change at 2.5A/μS from 100% to 50% of Io, max at 12Vin, 5.0V out (Cout = 1uF ceramic, 10μF tantalum) Io:2A/DIV Figure 15: Output short circuit current 12Vin, 0.75Vout (5A/div) Figure 14: Typical transient response to step load change at 2.5A/μS from 50% to 100% of Io, max at 12Vin, 5.
PAGE 6
TEST CONFIGURATIONS DESIGN CONSIDERATIONS Input Source Impedance TO OSCILLOSCOPE L VI(+) 2 100uF Tantalum BATTERY VI(-) Note: Input reflected-ripple current is measured with a simulated source inductance. Current is measured at the input of the module. Figure 17: Input reflected-ripple test setup To maintain low-noise and ripple at the input voltage, it is critical to use low ESR capacitors at the input to the module.
PAGE 7
DESIGN CONSIDERATIONS (CON.) FEATURES DESCRIPTIONS The power module should be connected to a low ac-impedance input source. Highly inductive source impedances can affect the stability of the module. An input capacitance must be placed close to the modules input pins to filter ripple current and ensure module stability in the presence of inductive traces that supply the input voltage to the module.
PAGE 8
FEATURES DESCRIPTIONS (CON.) Over-Temperature Protection The over-temperature protection consists of circuitry that provides protection from thermal damage. If the temperature exceeds the over-temperature threshold the module will shut down. The module will try to restart after shutdown. If the over-temperature condition still exists during restart, the module will shut down again. This restart trial will continue until the temperature is within specification.
PAGE 9
FEATURE DESCRIPTIONS (CON.) Table 1 provides Rtrim values required for some common output voltages, while Table 2 provides value of external voltage source, Vtrim, for the same common output voltages. By using a 1% tolerance trim resistor, set point tolerance of ±2% can be achieved as specified in the electrical specification. Table 1 VO (V) 0.7525 1.2 1.5 1.8 2.5 3.3 5.0 Rtrim (KΩ) Open 22.464 13.047 9.024 5.009 3.122 1.472 Table 2 VO (V) 0.7525 1.2 1.5 1.8 2.5 3.3 5.0 Vtrim (V) Open 0.670 0.650 0.
PAGE 10
FEATURE DESCRIPTIONS (CON.) The output voltage tracking feature (Figure 26 to Figure 28) is achieved according to the different external connections. If the tracking feature is not used, the TRACK pin of the module can be left unconnected or tied to Vin. For proper voltage tracking, input voltage of the tracking power module must be applied in advance, and the remote on/off pin has to be in turn-on status. (Negative logic: Tied to GND or unconnected.
PAGE 11
FEATURE DESCRIPTIONS (CON.) Sequential Start-up Ratio-Metric Sequential start-up (Figure 26) is implemented by placing an On/Off control circuit between VoPS1 and the On/Off pin of PS2. Ratio–metric (Figure 28) is implemented by placing the voltage divider on the TRACK pin that comprise R1 and R2, to create a proportional voltage with VoPS1 to the Track pin of PS2.
PAGE 12
THERMAL CONSIDERATIONS Thermal management is an important part of the system design. To ensure proper, reliable operation, sufficient cooling of the power module is needed over the entire temperature range of the module. Convection cooling is usually the dominant mode of heat transfer. Hence, the choice of equipment to characterize the thermal performance of the power module is a wind tunnel.
PAGE 13
THERMAL CURVES DNS10S0A0R06(Standard) Output Current vs. Ambient Temperature and Air Velocity @ Vin = 12V, Vo = 0.75V (Either Orientation) Output Current(A) 7 6 5 4 Natural Convection 200LFM 3 100LFM 300LFM 400LFM 500LFM 2 1 0 30 Figure 30: Temperature measurement location The allowed maximum hot spot temperature is defined at 120℃ 35 40 45 50 55 60 65 70 75 80 85 Ambient Temperature (℃) Figure 33: DNS0A0R06(Standard) Output current vs.
PAGE 14
MECHANICAL DRAWING SMD PACKAGE (OPTIONAL) SIP PACKAGE DS_DNS10SIP06_07182012 14
PAGE 15
PART NUMBERING SYSTEM DNS 10 S 0A0 R 06 P Product Series Input Voltage Numbers of Outputs Output Voltage Package Type Output Current On/Off logic DNS - 6A DNM -10A DNL - 16A 04 - 2.8V ~ 5.5V 10 - 8.