background image

 

 
 
 
 

(2.30” x 0.90” x 0.39”)

 

 

SMD and Through-hole versions 

 

Industry standard pin out   

 

2:1 input range 

 

Fixed frequency operation 

 

Input UVLO, Output OTP, OCP, OVP   

 

Basic insulation 

 

2250V isolation 

 

Monotonic startup into normal and 

pre-biased loads 

 

Output voltage trim 

±

10% 

 

No minimum load required 

 

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 

directive

 

APPLICATIONS 

 

Telecom / DataCom 

 

Wireless Networks 

 

Optical Network Equipment 

 

Server and Data Storage 

 

Industrial / Test Equipment

 

OPTIONS 

 

 

Positive On/Off logic

 

 

SMD pin

 

 

Short pin lengths available

 

 

 

Delphi Series E24SR, 66W Eighth Brick Family 
DC/DC Power Modules: 24V in, 5V/12A out 

 

The Delphi Series E24SR Eighth Brick, 24V input, single output, isolated
DC/DC converters are the latest offering from a world leader in power
systems technology and manufacturing 

 Delta Electronics, Inc. This

product family is available in either a through-hole or surface-mounted
package and provides up to 66 watts of power or 20A of output current
(3.3V and below) in an industry standard footprint and pinout. The
E24SR converter operates from an input voltage of 18V to 36V and is
available in output voltages from 3.3V to 12V. Efficiency for the 5V output
is 90.5% at 12A full load. 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. All models are
fully protected from abnormal input/output voltage, current, and
temperature conditions. The Delphi Series converters meet all safety
requirements with basic insulation.

 

 

 

Size: 58.4mm x 22.8mm x 10.0mm     

FEATURES 

 

High efficiency: 90.5% @ 5V/ 12A 

DS_E24SR05012_01032008 

DATASHEET 

Содержание Delphi Series E24SR

Страница 1: ...DC DC converters are the latest offering from a world leader in power systems technology and manufacturing Delta Electronics Inc This product family is available in either a through hole or surface mounted package and provides up to 66 watts of power or 20A of output current 3 3V and below in an industry standard footprint and pinout The E24SR converter operates from an input voltage of 18V to 36V...

Страница 2: ...perating Output Current Range 0 12 A Output Over Current Protection Output Voltage 10 Low 110 140 DYNAMIC CHARACTERISTICS Output Voltage Current Transient 10µF Tan 1µF Ceramic load cap 0 1A µs Positive Step Change in Output Current 50 Io max to 75 Io max 150 250 mV Negative Step Change in Output Current 75 Io max to 50 Io max 150 250 mV Settling Time within 1 Vout nominal 150 us Turn On Transient ...

Страница 3: ...in 12 Figure 1 Efficiency vs load current for minimum nominal and maximum input voltage at 25 C Figure 2 Power dissipation vs load current for minimum nominal and maximum input voltage at 25 C 0 0 0 5 1 0 1 5 2 0 2 5 3 0 3 5 4 0 18 20 22 24 26 28 30 32 34 36 Input Voltage V Input Current A Figure 3 Typical full load input characteristics at room temperature 36Vin 24Vin 18Vin 24Vin 36Vin ...

Страница 4: ...10V div Figure 5 Turn on transient at zero load current 2 ms div Vin 24V Top Trace Vout 2 0V div Bottom Trace ON OFF input 10V div For Positive Remote On Off Logic Figure 6 Turn on transient at full rated load current resistive load 2 ms div Vin 24V Top Trace Vout 2 0V div Bottom Trace ON OFF input 10V div Figure 7 Turn on transient at zero load current 2 ms div Vin 24V Top Trace Vout 2 0V div Bot...

Страница 5: ...ESR solid electrolytic capacitor and 1µF ceramic capacitor Top Trace Vout 100mV div 200us div Bottom Trace Iout 5A div Scope measurement should be made using a BNC cable length shorter than 20 inches Position the load between 51 mm to 76 mm 2 inches to 3 inches from the module Figure 10 Test set up diagram showing measurement points for Input Terminal Ripple Current and Input Reflected Ripple Curr...

Страница 6: ...0 4 0 6 0 2 4 6 8 10 12 14 1 Loadt Current A Output Voltage V 6 Figure 14 Output voltage ripple at nominal input voltage and rated load current Io 12A 20 mV div 2us div Load capacitance 1µF ceramic capacitor and 10µF tantalum capacitor Bandwidth 20 MHz Scope measurements should be made using a BNC cable length shorter than 20 inches Position the load between 51 mm to 76 mm 2 inches to 3 inches fro...

Страница 7: ...contact Delta s technical support team DESIGN CONSIDERATIONS Input Source Impedance The impedance of the input source connecting to the DC DC power modules will interact with the modules and affect the stability A low ac impedance input source is recommended If the source inductance is more than a few μH we advise adding a 10 to 100 μF electrolytic capacitor ESR 0 7 Ω at 100 kHz mounted close to t...

Страница 8: ...rent exceeds the OCP set point the modules will automatically shut down and enter hiccup mode The modules will try to restart after shutdown If the overload condition still exists the module will shut down again This restart trial will continue until the overload condition is corrected Over Voltage Protection The modules include an internal output over voltage protection circuit which monitors the...

Страница 9: ...ure 19 Circuit configuration for trim up increase output voltage If the external resistor is connected between the TRIM and SENSE the output voltage set point increases Fig 19 The external resistor value required to obtain a percentage output voltage change is defined as Ω Δ Δ Δ K up Rtrim 2 10 511 1 225 100 Vo 11 5 Ex When Trim up 10 5V 1 1 5 5V Ω K up Rtrim 13 168 2 10 10 511 10 225 1 10 100 5 1...

Страница 10: ... wind tunnel The space between the neighboring PWB and the top of the power module is constantly kept at 6 35mm 0 25 Note Wind Tunnel Test Setup Figure Dimensions are in millimeters and Inches 12 7 0 5 MODULE AIR FLOW 50 8 2 0 FACING PWB PWB AIR VELOCITY AND AMBIENT TEMPERATURE MEASURED BELOW THE MODULE Figure 20 Wind tunnel test setup Thermal Derating Heat can be removed by increasing airflow ove...

Страница 11: ...DS_E24SR05012_01032008 11 PICK AND PLACE LOCATION SURFACE MOUNT TAPE REEL RECOMMENDED PAD LAYOUT SMD ...

Страница 12: ...40 2nd Ramp up temp 1 0 3 0 C sec Over 200 C 40 50sec Cooling down rate 3 C sec Note The temperature refers to the pin of E24SR measured on the pin Vout joint LEAD FREE SAC PROCESS RECOMMEND TEMP PROFILE Temp Time 150 200 100 140 sec Time Limited 90 sec above 217 217 Preheat time Ramp up max 3 sec Ramp down max 4 sec Peak Temp 240 245 25 Note The temperature refers to the pin of E24SR measured on ...

Страница 13: ...hrough hole module Pin No Name Function 1 Vin Negative input voltage Remote ON OFF Positive input voltage Positive output voltage Positive remote sense Output voltage trim Negative remote sense Negative output voltage 2 3 4 5 6 ON OFF Vin Vout SENSE TRIM SENSE Vout 7 8 ...

Страница 14: ...efer to part numbering system above or contact your local sales office CONTACT www delta com tw dcdc USA Telephone East Coast 888 335 8201 West Coast 888 335 8208 Fax 978 656 3964 Email DCDC delta corp com Europe Phone 41 31 998 53 11 Fax 41 31 998 53 53 Email DCDC delta es com Asia the rest of world Telephone 886 3 4526107 ext 6220 Fax 886 3 4513485 Email DCDC delta com tw WARRANTY Delta offers a...

Страница 15: ...DS_E24SR05012_01032008 15 at any time without notice ...

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