Delta Electronics S36SS User Manual

FEATURES

 High efficiency: 81% @ 3.3V/4.5A

 Standard footprint

 Surface mountable

 Industry standard pin out

 Size: 45.5mm x 28.0mm x 12.2mm

(1.79” x 1.10” x 0.48”)

 Fixed frequency operation

 Input UVLO, OVLO, Output OCP, OVP

 No minimum load required

 Wide Input voltage range: 18V~60V

 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 directive

Delphi Series S36SS, 15W Family

DC/DC Power Modules: 18Vin to 60Vin, 3.3V/4.5A out

The Delphi Series S36SS, surface mountable, wide ranging input, single

output, isolated DC/DC converter, is the latest offering from a world

leader in power system and technology and manufacturing – Delta

Electronics, Inc. This product family provides up to 15 watts of power o

up to 4.5A of output current in an industry standard footprint. With

creative design technology and optimization of component placement, the

Delphi Series Small Power converters possess outstanding electrical and

thermal performance, as well as extremely high reliability under highl

stressful operating conditions. All models are protected from abnormal

input/output voltage and current conditions.

OPTIONS

 Positive on/off logic

APPLICATIONS

 Telecom/DataCom

 Wireless Networks

 Optical Network Equipment  Server and Data Storage

 Industrial/Test Equipment

DATASHEET DS_S36SS3R304_04062006

Delta Electronics, Inc.

TECHNICAL SPECIFICATIONS

(TA=25°C, airflow rate=300 LFM, Vin=48Vdc, nominal Vout unless otherwise noted.)

PARAMETER

ABSOLUTE MAXIMUM RATINGS

Input Voltage

Continuous Transient (100ms) 100ms 100 Vdc

Operating Temperature Refer to Figure 16 for the measuring point -40 105 °C Storage Temperature Input/Output Isolation Voltage 1 minute 1500 Vdc

INPUT CHARACTERISTICS

Operating Input Voltage Input Under-Voltage Lockout

Turn-On Voltage Threshold Turn-Off Voltage Threshold Lockout Hysteresis Voltage

Input Over-Voltage Lockout

Turn-0ff Voltage Threshold Turn-on Voltage Threshold

Maximum Input Current 100% Load, 18Vin 1.3 A No-Load Input Current 30 mA Off Converter Input Current 4 Inrush Current(I2t) 1 A2s Input Reflected-Ripple Current P-P thru 12µH inductor, 5Hz to 20MHz 5 mA Input Voltage Ripple Rejection 120 Hz 55 dB

OUTPUT CHARACTERISTICS

Output Voltage Set Point Output Voltage Regulation

Over Load Io=Io,min to Io,max ±5 ±15 mV Over Line Vin=18V to 60V ±2 ±7 mV

Over Temperature Total Output Voltage Range Over sample load, line and temperature 3.16 3.44 V Output Voltage Ripple and Noise 5Hz to 20MHz bandwidth

Peak-to-Peak Full Load, 1µF ceramic, 10µF tantalum 60 100 mV

RMS Full Load, 1µF ceramic, 10µF tantalum 15 25 mV Operating Output Current Range 0 4.5 A Output DC Current-Limit Inception Output Voltage 10% Low 5 6 8 A

DYNAMIC CHARACTERISTICS

Output Voltage Current Transient 48V, 10µF Tan & 1µF Ceramic load cap, 0.1A/µs

Positive Step Change in Output Current 50% Io,max to 100% Io,max 65 100 mV

Negative Step Change in Output Current 100% Io,max to 50% Io.max 65 100 mV

Settling Time to 1% of Final value 600 µs Turn-On Transient

Start-Up Time, From On/Off Control 6 10 ms

Start-Up Time, From Input 5 10

Maximum Output Capacitance Full load; 5% overshoot of Vout at startup 2000 µF

EFFICIENCY

100% Load

ISOLATION CHARACTERISTICS

Isolation Voltage 1500 V Isolation Resistance 100 MΩ Isolation Capacitance 500 pF

FEATURE CHARACTERISTICS

Switching Frequency 280 kHz ON/OFF Control, (Logic Low-Module ON)

Logic Low Von/off at Ion/off=1.0mA 0 0.7 V

Logic High Von/off at Ion/off=0.0 µA 2 15 V

ON/OFF Current Ion/off at Von/off=0.0V 1 mA Leakage Current Logic High, Von/off=15V 50 uA

Output Voltage Trim Range Output Over-Voltage Protection(Hiccup) Over full temp range; % of nominal Vout 115 125 140 %

GENERAL SPECIFICATIONS

Calculated MTBF Io=80% of Io, max; Tc=40°C 4.5 M hours Weight (Open Frame) 12.5 grams

NOTES and CONDITIONS S36SS3R304NRFA

Min. Typ. Max. Units

Vin=48V, Io=50%Io.max, Tc=25℃

Tc=-40℃ to 100℃

78 81 %

cross Trim Pin & +Vo or –Vo, Pout≦max rated

70 Vdc

-55 125 °C

18 60 V

16 17 18 V 15 16 17 V

0.5 1.5 2.5 V

64 V 63 V

3.23 3.30 3.37

100 300

m/℃

-10 +10 %

ELECTRICAL CHARACTERISTICS CURVES

4.0

EFFI CI ENC Y (%)

0.5 1 1.5 2 2.5 3 3.5 4 4.5

OUTPUT CURRENT (A)

18Vin

24Vin

48Vin

60Vin

Figure 1: Efficiency vs. load current for minimum, nominal, and

maximum input voltage at 25

1.00

0.80

°C.

Io=4.5A

I0=2.7A

Io=0.45

3.5

3.0

2.5

2.0

1.5

POWER DISSIPATION (W)

1.0

0.5

0.0

0.5 1 1.5 2 2.5 3 3.5 4 4.5

OUTPUT CURRENT(A)

18Vin 24Vin 48Vin 60Vin

Figure 2: Power dissipation vs. load current for minimum,

nominal, and maximum input voltage at 25

°C.

0.60

0.40

INPUT CURRENT (A)

0.20

0.00 15 20 25 30 35 40 45 50 55 60

INPUT V OL TA GE ( V )

Figure 3: Typical input characteristics at room temperature. Figure 4: Turn-on transient at full rated load current (resistive

load) (2 ms/div). Top Trace: Vout (1V/div); Bottom Trace: ON/OFF Control (2V/div).

ELECTRICAL CHARACTERISTICS CURVES

)

Figure5: Turn-on transient at zero load current (2 ms/div). Top

Trace: Vout (1V/div); Bottom Trace: ON/OFF Control (2V/div).

Figure 6: Output voltage response to step-change in load

current (50%-100%-50% of Io, max; di/dt = 0.1A/µs). Load cap: 10µF, 100 m ceramic capacitor. Top Trace: Vout (50mV/div), Bottom Trace: Iout (2A/div).

Ω

ESR tantalum capacitor and 1µF

TEST

12uH

Cs:68uF/100V 68uF/100V ESR< 0.3 ESR< 0.3

Ω

20﹫100KHz℃20 ℃100KHz﹫

Ω

Vi(+)

Vi(-)

Figure 7: Test set-up diagram showing measurement points for

Input Reflected Ripple Current (Figure 8). Note: Measured input reflected-ripple current with a simulated

source Inductance (L battery impedance.

of 12 µH. Capacitor Cs offset possible

TEST

Figure 8: output current and nominal input voltage with 12

impedance and 68

. Input Reflected Ripple Current, i

µF electrolytic capacitor (2 mA/div).

, at full rated

µH source

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