Delta Electronics S36SE User Manual

Delphi S36SE, 17W 1x1 Brick Series
DC/DC Power Modules: 18~75V in, 5V/3A out

The Delphi S36SE series, 1x1 sized, 18~75Vin, 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 surface mount or

through-hole package and provides up to 17 watts of power or 5A of

output current (3.3V and below) in a standard 1x1 form factor

(1.10”x0.96”x0.33”). The pinout is compatible with the popular

industry standard 1x2 sized products. 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. The S36SE 5V module could provide full output power

without any airflow up to 77°C ambient temperature while keeping the

component junction temperatures under most derating guidelines. All

modules are fully protected from abnormal input/output voltage,

current, and temperature conditions.

FEATURES

 High efficiency: 83.5% @5V/3A

 Industry standard 1x1 pinout

 Size: 27.9x24.4x8.7mm (1.10”x0.96”x0.34”)

 Fixed frequency operation

 4:1 ultra wide input voltage range

 Input UVLO

 Output OCP, OVP and OTP

 Monotonic startup into normal and pre-bias

loads

 Output voltage trim ±10%

 2250V isolation and basic insulation

 No minimum load required

 SMT and Through-hole versions

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

OHSAS18001 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

OPTIONS

 Positive, negative, or no On/Off

 OTP and Output OVP, OCP mode,

Auto-restart (default) or latch-up

 Surface mounted pins

APPLICATIONS

 Optical Transport

 Data Networking

 Communications, including Wireless

 Servers

and traditional Telecom

DATASHEET
DS_S36SE05003_07312008

TECHNICAL SPECIFICATIONS

TA = 25°C, airflow rate = 300 LFM, V

= 48 Vdc, nominal Vout unless otherwise noted.

in

PARAMETER NOTES and CONDITIONS S36SE05003 (Standard)

ABSOLUTE MAXIMUM RATINGS

Input Voltage

Continuous 80 Vdc

Transient(100ms) 100ms 100 Vdc
Operating Temperature Refer to Figure 20 for measuring point -40 127 °C
Storage Temperature -55 125 °C
Input/Output Isolation Voltage 2250 Vdc

INPUT CHARACTERISTICS

Operating Input Voltage 18 75 Vdc
Input Under-Voltage Lockout

Turn-On Voltage Threshold 16 17 18 Vdc

Turn-Off Voltage Threshold 15 16 17 Vdc

Lockout Hysteresis Voltage 0.5 1 1.5 Vdc

Maximum Input Current 100% Load, 18Vin 1.1 A
No-Load Input Current 15 mA
Off Converter Input Current 5 mA
Inrush Current (I2t) 0.01 A2s
Input Reflected-Ripple Current P-P thru 12µH inductor, 5Hz to 20MHz 8 mA
Input Voltage Ripple Rejection 120 Hz 60 dB

OUTPUT CHARACTERISTICS

Output Voltage Set Point Vin=48V, Io=Io.max, Tc=25°C 4.925 5.0 5.075 Vdc
Output Voltage Regulation

Over Load Io=Io, min to Io, max ±3 ±10 mV

Over Line Vin=18V to 75V ±3 ±10 mV

Over Temperature Tc=-40°C to 100°C ±50 mV

Total Output Voltage Range Over sample load, line and temperature 4.85 5.15 V
Output Voltage Ripple and Noise 5Hz to 20MHz bandwidth

Peak-to-Peak Full Load, 1µF ceramic, 10µF tantalum 80 mV

RMS Full Load, 1µF ceramic, 10µF tantalum 20 mV

Operating Output Current Range 0 3 A
Output DC Current-Limit Inception Output Voltage 10% Low 110 120 130 %

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 75% Io.max 200 mV

Negative Step Change in Output Current 75% Io.max to 50% Io.max 200 mV

Settling Time (within 1% Vout nominal) 300 us

Turn-On Transient

Start-Up Time, From On/Off Control 16 25 ms

Start-Up Time, From Input 16 25 ms

Maximum Output Capacitance Full load; 5% overshoot of Vout at startup 1000 µF

EFFICIENCY

100% Load 83.5 %
60% Load 83.0 %

ISOLATION CHARACTERISTICS

Input to Output 2250 Vdc
Isolation Resistance 10 MΩ
Isolation Capacitance 1000 pF

FEATURE CHARACTERISTICS

Switching Frequency 450 kHz
ON/OFF Control, Negative Remote On/Off logic

Logic Low (Module On) Von/off -0.7 0.8 V

Logic High (Module Off) Von/off 2 18 V

ON/OFF Control, Positive Remote On/Off logic

Logic Low (Module Off) Von/off -0.7 0.8 V

Logic High (Module On) Von/off 2 18 V

ON/OFF Current (for both remote on/off logic) Ion/off at Von/off=0.0V 0.25 mA

Leakage Current (for both remote on/off logic) Logic High, Von/off=15V 30 uA

Output Voltage Trim Range
Output Over-Voltage Protection Over full temp range; 5.75 7.0 V

GENERAL SPECIFICATIONS

MTBF Io=80% of Io, max; Ta=25°C, 300LFM 5.14 M hours
Weight 9.0 grams
Over-Temperature Shutdown Refer to Figure 20 for measuring point 130 °C

Min. Typ. Max. Units

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

-10% 10% %

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ELECTRICAL CHARACTERISTICS CURVES

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

maximum input voltage at 25°C.

1.4

1.2

1

0.8

0.6

INPUT CURRENT(A)

0.4

0.2

0

15 20 25 30 35 40 45 50 55 60 65 70 75

INPUT VOLTAGE(V)

Figure 3: Typical full load input characteristics at room

temperature.

Figure 2: Power dissipation vs. load current for minimum, nominal,
and maximum input voltage at 25°C.

Figure 4: (For negative remote on/off logic) Turn-on transient at

full rated load current (5 ms/div). Vin=48V. Top Trace: Vout, 2V/div;
Bottom Trace: ON/OFF input, 5V/div.

Figure 5: (For negative remote on/off logic) Turn-on transient at
zero load current (5 ms/div). Vin=48V. Top Trace: Vout, 2V/div,

Bottom Trace: ON/OFF input, 5V/div.

DS_S36SE05003_07312008

Figure 6: (For positive remote on/off logic) Turn-on transient at full
rated load current (5 ms/div). Vin=48V. Top Trace: Vout, 2V/div;
Bottom Trace: ON/OFF input, 5V/div.

3

ELECTRICAL CHARACTERISTICS CURVES (CON.)

A

)

)

Figure 7: (For positive remote on/off logic)Turn-on transient at zero
load current (5 ms/div). Vin=48V. Top Trace: Vout, 2V/div; Bottom
Trace: ON/OFF input, 5V/div.

Figure 9: Output voltage response to step-change in load current

(50%-75% of Io, max; di/dt = 0.1A/µs). Load cap: 10µF tantalum
capacitor and 1µF ceramic capacitor. Top Trace: Vout (200mV/div,
100us/div
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.

, Bottom Trace: Iout (1A/div). Scope measurement

Figure 8: Output voltage response to step-change in load current

(75%-50% of Io, max; di/dt = 0.1A/µs). Load cap: 10µF tantalum
capacitor and 1µF ceramic capacitor. Top Trace: Vout (200mV/div,
100us/div), Bottom Trace: Iout (1
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.

/div). Scope measurement

Figure 10: Test set-up diagram showing measurement points for
Input Terminal Ripple Current and Input Reflected Ripple Current.

Note: Measured input reflected-ripple current with a simulated
source Inductance (L

battery impedance. Measure current as shown below.

of 12 μH. Capacitor Cs offset possible

TEST

DS_S36SE05003_07312008

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ELECTRICAL CHARACTERISTICS CURVES

)

E

Figure 11: Input Terminal Ripple Current, i
current and nominal input voltage with 12µH source impedance and
33µF electrolytic capacitor (50mA/div, 2us/div)

StripCopper

Vo(+)

10u

1u

, at full rated output

c

SCOPE RESISTIV

LOAD

Figure 12: Input reflected ripple current, i

inductor at nominal input voltage and rated load current (20

mA/div, 2us/div)

, through a 12µH source

s

Vo(-)

Figure 13: Output voltage noise and ripple measurement test setup

6.0

5.0

4.0

3.0

2.0

OUTPUT VOLTAGE (V)

1.0

0.0

0.0 0.4 0.8 1.2 1.6 2.0 2.4 2.8 3.2 3.6 4.0

LOAD CURRENT (A)

Figure 14: Output voltage ripple at nominal input voltage and rated load

current (Io=3A) (50 mV/div, 5us/div

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)

from the module

. Load capacitance: 1µF ceramic

Figure 15: Output voltage vs. load current showing typical current
limit curves and converter shutdown points

DS_S36SE05003_07312008

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