Datasheet

ManualsBrandsDELTA ELECTRONICS ManualsPSU ComponentsDC/DC converter (SMD) 0.75 Vdc, 5.5 Vdc 3 A 15 W No. of outputs: 1 x

DATASHEET

DS_DNT12SMD03_07182012

FEATURES

 High Efficiency: 93.0% @ 12Vin, 5.0V/3A out

 Small size and low profile:

0.80” x 0.45” x 0.27” (SMD)

0.90” x 0.40” x 0.25” (SIP)

 Standard footprint and pinout

 Resistor-based trim

 Output voltage programmable from

0.75Vdc to 5.5Vdc via external resistors

 Pre-bias startup

 No minimum load required

 Fixed frequency operation

 Input UVLO, OCP

 Remote ON/OFF

 ISO 9001, TL 9000, ISO 14001, QS9000,

OHSAS18001 certified manufacturing facility

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

and TUV (EN60950) - pending

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

pending

APPLICATIONS

 Telecom/DataCom

 Distributed power architectures

 Servers and workstations

 LAN/WAN applications

 Data processing applications

OPTIONS

 Positive on/off logic

 SIP package

Delphi series DNT12 Non-Isolated Point of Load

DC/DC Power Modules: 8.3~14Vin, 0.75~5.5Vo, 3A

The Delphi series DNT12, 8.3V~14V input, 3A 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 DNT12, 3A series provides a programmable output voltage from

0.75V to 5.5V using external resistors. This product family is available in a

surface mount or SIP package and provides up to 3A of current in an

industry standard footprint. 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. The DNT12, 3A

modules have excellent thermal performance and can provide full output

current at up to 85℃ ambient temperature with no airflow.

Summary of content (12 pages)

PAGE 1
FEATURES  High Efficiency: 93.0% @ 12Vin, 5.0V/3A out  Small size and low profile: 0.80” x 0.45” x 0.27” (SMD) 0.90” x 0.40” x 0.25” (SIP)  Standard footprint and pinout  Resistor-based trim  Output voltage programmable from 0.75Vdc to 5.
PAGE 2
TECHNICAL SPECIFICATIONS (TA = 25°C, airflow rate = 300 LFM, Vin = 12Vdc, nominal Vout unless otherwise noted.) PARAMETER NOTES and CONDITIONS DNT12S0A0S03NFA Min.
PAGE 3
96 93 90 87 84 81 78 75 72 Efficiency (%) Efficiency (%) ELECTRICAL CHARACTERISTICS CURVES 0.5 1 1.5 2 2.5 95 92 89 86 83 80 77 74 71 0.5 3 1 Figure 1: Converter efficiency vs. output current Efficiency (%) Efficiency(%) 2 2.5 88 86 84 82 80 78 76 74 72 3 0.5 1 Output Current (A) 1.5 2 2.5 3 Output Current (A) Figure 3: Converter efficiency vs. output current (12V in, 2.5V output voltage) Figure 4: Converter efficiency vs. output current (12V in, 1.
PAGE 4
ELECTRICAL CHARACTERISTICS CURVES Figure 7: Output ripple & noise at 12Vin, 5.0V/3A out pk-pk :45.8mV, rms :17.8mV (50mV/div,2uS/div) Figure 8: Output ripple & noise at 12Vin, 3.3V/3A out pk-pk :37.5mV, rms :11.6mV (50mV/div,2uS/div) Figure 9: Output ripple & noise at 12Vin, 2.5V/3A out pk-pk:33.3mV, rms:9.4mV (50mV/div, 2uS/div) Figure 10: Output ripple & noise at 12Vin, 1.2V/3A out pk-pk: 18.7mV, rms: 3.9mV (50mV/div, 2uS/div) Figure 11: Turn on delay time at 12Vin, 5.
PAGE 5
ELECTRICAL CHARACTERISTICS CURVES Figure 13: Turn on Using Remote On/Off with external capacitors (Co= 3000 µF), 5.0V/3A out (resistive load) (5mS/div) Top trace: Vout, 5V/div; Bottom trace: Vin , 10V/div Figure 14: Turn on Using Input On/Off with external capacitors (Co= 3000 µF), 5.0V/3A out (resistive load) (5mS/div) Top trace: Vout, 5V/div; Bottom trace: On/Off, 5V/div Figure 15: Typical transient response to step load change at 2.5A/μS from 100% to 50% 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 19: Input reflected-ripple test setup COPPER STRIP Vo 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
FEATURES DESCRIPTIONS FEATURES DESCRIPTIONS (CON.) Remote On/Off The DNT series power modules have an On/Off pin for remote On/Off operation. Both positive and negative On/Off logic options are available in the DNT series power modules. For positive logic module, connect an open collector (NPN) transistor or open drain (N channel) MOSFET between the On/Off pin and the GND pin (see figure 22).
PAGE 8
FEATURE DESCRIPTIONS (CON.) FEATURE DESCRIPTIONS (CON.) The amount of power delivered by the module is the PS1 voltage at the outputPS1 terminals multiplied by the output current. When using the trim feature, the output voltage +△V PS2 PS2 of the module can be increased, which at the same output current would increase the power output of the module. Care should be taken to ensure that the maximum output power of the module must not exceed the maximum rated power (Vo.set x Io.max ≤ P max). Vtrim = 0.
PAGE 9
THERMAL CONSIDERATIONS THERMAL CURVES 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 10
PICK AND PLACE LOCATION SURFACE- MOUNT TAPE & REEL LEAD (Sn/Pb) PROCESS RECOMMEND TEMP. PROFILE LEAD FREE (SAC) PROCESS RECOMMEND TEMP. PROFILE Temp. Peak Temp. 240 ~ 245 ℃ 220℃ Ramp down max. 4℃ /sec. 200℃ 150℃ Preheat time 90~120 sec. Time Limited 75 sec. above 220℃ Ramp up max. 3℃ /sec. 25℃ Time DS_DNT12SMD03_07182012 Note: All temperature refers to assembly application board, measured on the land of assembly application board.
PAGE 11
MECHANICAL DRAWING SMD PACKAGE SIP PACKAGE (OPTIONAL) DS_DNT12SMD03_07182012 11
PAGE 12
PART NUMBERING SYSTEM DNT 12 S 0A0 S Product Series Input Voltage Numbers of Outputs Output Voltage Package Type DNT - 3A or 04 - 2.4V ~ 5.5V 5A 12 - 8.3V ~ 14V S - Single 0A0 R - SIP Programmable S - SMD 03 N F A Output On/Off logic Current 03 - 3A 05 - 5A N- Negative P- Positive Option Code F- RoHS 6/6 (Lead Free) A - Standard Functions MODEL LIST Model Name Package Input Voltage Output Voltage Output Current Efficiency 12Vin, 5Vout full load DNT12S0A0S03NFA SMD 8.