Delta Electronics H48SA User Manual

Delphi Series H48SA, Half Brick Family DC/DC Power Modules: 48V in, 12V/25A out

The Delphi Series H48SA Half Brick, 48V input, single output, isolated,

open frame DC/DC converters are the latest offering from a world

leader in power systems technology and manufacturing — Delta

Electronics, Inc. This product family provides up to 300 watts of power

or up to 25A of output current in an industry standard footprint. This

product represents the next generation of design technology required

by today’s leading-edge circuitry. 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. Typical

efficiency of the 12V, 300W module is better than 93.2% and all

modules are fully protected from abnormal input/output voltage, current

and temperature conditions. The Delphi Series converters meet all

safety requirements with basic insulation. A variety of optional

heatsinks are available for extended thermal operation.

FEATURES

 High efficiency: 93.2% @ 12V/ 25A

 Standard footprint: 58.4 x 61.0 x 11.2 mm

(2.30” x2.40”x0.44”)

 Industry standard pin out

 Single board construction

 Fixed frequency operation

 2250V Isolation

 Basic insulation

 Monotonic startup into normal and pre-

bias loads

 Fully protected: input UVLO, output OVP,

OCP, OTP

 No minimum load required

 Wide output trim range: -20%, +10%

 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

OPTIONS

 Positive on/off

 Heatspreader available for extended

operation

APPLICATIONS

 Telecom / DataCom

 Wireless Networks

 Optical Network Equipment  Server and Data Storage

 Industrial / Test Equipment

DATASHEET DS_H48SA12025_05052008

TECHNICAL SPECIFICATIONS

(TA=25°C, airflow rate=300 LFM, V

PARAMETER

ABSOLUTE MAXIMUM RATINGS

Input Voltage

Continuous Transient (100ms) 100ms 100 Vdc

Operating Device Temperature(Openframe) Please refer to fig24. for the measuring point -40 122 °C Operating Device Temperature(Heatspreader) Please refer to fig25. for the measuring point -40 109 °C Storage Temperature Input/Output Isolation Voltage 2250 Vdc

INPUT CHARACTERISTICS

Operating Input Voltage Input Under-Voltage Lockout

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

Maximum Input Current Vin=36V, 100% Load 9.5 A No-Load Input Current 170 240 mA Off Converter Input Current 18 mA Inrush Current(I2t) With 100uF external input cap 1 A2S Input Terminal Ripple Current RMS, With 100uF/0.1ohm input cap, 100% Load 0.42 A Input Reflected-Ripple Current Pk-Pk, thru 12µH inductor, 5Hz to 20MHz, 100% Load 7 mA Input Voltage Ripple Rejection 120 Hz 50 dB

OUTPUT CHARACTERISTICS

Output Voltage Set Point Output Voltage Regulation

Over Load Io=Io,min to Io,max ±10 mV Over Line Vin=36V to 75V ±10 mV

Over Temperature Total Output Voltage Range over sample load, line and temperature 11.64 12.36 V Output Voltage Ripple and Noise 5Hz to 20MHz bandwidth

Peak-to-Peak 100% Load, 1µF ceramic, 10µF tantalum 60 120 mV

RMS 100% Load, 1µF ceramic, 10µF tantalum 30 60 mV Operating Output Current Range Full input range 0 25 A Operating Output Power Range Full input range 0 300 W Output DC Current Protection Full input range 110 150 %

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 400 mV

Negative Step Change in Output Current 75% Io,max to 50% Io,max 400 mV

Settling Time (within 1% Vout nominal) 400 uS Turn-On Transient

Start-Up Time, From On/Off Control 12 28 mS

Start-Up Time, From Input 12 28 mS Maximum Output Capacitance 100% Resistor load; 5% overshoot of Vout at startup 10000 µF

EFFICIENCY

100% Load Vin=48V 93.2 % 60% Load Vin=48V 92.5 %

ISOLATION CHARACTERISTICS

Input to Output 2250 Vdc Isolation Resistance 10 MΩ Isolation Capacitance 1500 pF

FEATURE CHARACTERISTICS

Switching Frequency 300 kHz ON/OFF Control, Negative Remote On/Off logic

Logic Low (Module On) Von/off -2 1.2 V

Logic High (Module Off) Von/off 3 18 V ON/OFF Control, Positive Remote On/Off logic Logic Low (Module Off) Von/off -2 1.2 V Logic High (Module On) Von/off 3 18 V

ON/OFF Current (for both remote on/off logic) Ion/off at Von/off=0.0V 0.3 mA

ON/OFF Current (for both remote on/off logic) Ion/off at Von/off=3V 10 uA

Leakage Current(for both remote on/off logic) Logic High, Von/off=15V 100 uA Output Voltage Trim Range Pout <= max rated power 9.6 13.2 V Output Voltage Remote Sense Range Pout <= max rated power 10 % Output Over-Voltage Protection Over full input range; Over full temp range 115 140 %

GENERAL SPECIFICATIONS

MTBF Io=80% of Io, max; Ta=25°C,airflow rate=300 LFM 1.5 M hours Weight Open frame 80 grams Over-Temperature Shutdown(Openframe) Please refer to Fig 24. for the measuring point 127 °C Over-Temperature Shutdown(Heatspreader) Please refer to Fig 25. for the measuring point 116 °C

=48Vdc, nominal Vout unless otherwise noted.)

NOTES and CONDITIONS H48SA12025 (Standard)

Vin=48V, Io=Io.max, Tc=25℃

Tc=-40℃ to 100℃

Min. Typ. Max. Units

80 Vdc

-55 125 °C

36 48 75 Vdc

32.5 34 35.5 Vdc

30.5 32 33.5 Vdc

1 2 3 Vdc

11.82 12 12.18 Vdc

±120 mV

DS_H48SA12025_05052008

ELECTRICAL CHARACTERISTICS CURVES

EFFICIENCY (%)

5 10152025

36Vin

OUT PUT CURRENT (A )

48Vin

75Vin

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

maximum input voltage at 25°C. Vout=12V.

EFFICIENCY (%)

36Vin

48Vin

75Vin

POWER DISSIPATION (W)

0 5 10 15 20 25

48Vin

36Vin

OUT PUT CURRENT (A)

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

nominal, and maximum input voltage at 25°C. Vout=12V.

POWER DISSIPATION (W)

48Vin

36Vin

75Vin

5 10152025

Figure 3: Efficiency vs. load current for minimum, nominal, and

maximum input voltage at 25°C. Vout=9.6V.

DS_H48SA12025_05052008

OUT PUT CURRENT (A )

0 5 10 15 20 25

OUT PUT CURRENT (A)

Figure 4: Power dissipation vs. load current for minimum,

nominal, and maximum input voltage at 25°C. Vout=9.6V.

ELECTRICAL CHARACTERISTICS CURVES

EFFICIENCY (%)

5 10152025

36Vin

OUT P UT CURRENT (A)

48Vin

75Vin

Figure 5: Efficiency vs. output voltage for minimum, nominal,

and maximum input voltage at 25°C, Vout=

.2V.

75Vin

POWER DISS IP ATIO N (W)

0 5 10 15 20 25

48Vin

36Vin

OUT P UT CURRENT (A)

Figure 6: Power dissipation vs. output voltage for minimum,

nominal, and maximum input voltage at 25°C, Vout=13.2V.

Output Voltage (V)

30.0 31.3 33.6 35.0 40.0 45.0 50.0 55.0 60.0 65.0 70. 0 75.0

Output Current (A )

Figure 7: Typical input characteristics at room temperature. Figure 8: Turn-on transient at full rated load current, 4ms/div:

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

DS_H48SA12025_05052008

ELECTRICAL CHARACTERISTICS CURVES

Figure 9: Turn-on transient at zero load current, 4 ms/div;

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

Figure 10: Output voltage response to step-change in load

current, 200mV/div, 200us/div. 75%-50%-75% of Io, max, di/dt =

/µs. Load cap: 10µF, tantalum capacitor and 1µF ceramic

0.1 capacitor. 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..

+ +

++ ++

Cs: 220 uF

100uF,

ESR=0.2 ohm @

C 10 0KHz

Vin+

Vin-

Figure 11: Output voltage response to step-change in load

current, 200mV/div, 1ms/div. 75%-50%-75% of Io, max, di/dt = 1A/µs. Load cap: 5000µF tantalum capacitor and 1µF ceramic capacitor. 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..

DS_H48SA12025_05052008

Figure 12: 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 (LTEST) of 12 μH. Capacitor Cs offset possible battery impedance. Measured current as shown below.

+ 9 hidden pages