FEATURES
High Efficiency: 89% @ 5.0V/10A Size: 49.6mm x 39.4mm x 8.9mm (1.95”x1.55”x0.35”) Industry standard pin out Fixed frequency operation Input UVLO, OTP, Output OCP, OVP, (auto recovery) Monotonic startup into normal and pre-biased loads 2250V isolation and basic insulation No minimum load required 4:1 Input voltage range ISO 9001, TL 9000, ISO 14001, QS 9000, OHSAS 18001 certified manufacturing facility UL/cUL 60950 (US & Canada) Recognized, and TUV (EN60950) certified. CE mark meets 73/23/EEC and
Delphi Series L36SA, 2 x 1.6, 50W Family DC/DC Power Module: 18~75V in, 5.0V/10A out
www.DataSheet4U.com
93/68/EEC directives
The Delphi Series L36SA, 2” x 1.6”, 18~75V input, single output, isolated DC/DC converter is the latest offering from a world leader in power systems technology and manufacturing - Delta Electronics, Inc. This L36SA series provides up to 50 watts of power or 15A of output current (3.3V) in an industry standard 2 x 1.6 form factor and pinout. The Delphi L36SA series operates from a wide 18~75V (4:1) input voltages. With creative design technology and optimization of component placement, these converters possess outstanding electrical and thermal performances, 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. An optional heat spreader is available for extended operation.
OPTIONS
Positive On/Off logic Sense Negative trim Heat spreader
APPLICATIONS
Telecom/Datacom Wireless Networks Optical Network Equipment Server and Data Storage Industrial/Testing Equipment
DATASHEET DS_L36SA05010_02142007
TECHNICAL SPECIFICATIONS
(TA=25°C, airflow rate=300 LFM, Vin=48Vdc, nominal Vout unless otherwise noted.)
PARAMETER
ABSOLUTE MAXIMUM RATINGS Input Voltage Continuous Maximum input voltage Operating Temperature Storage Temperature Input/Output Isolation Voltage INPUT CHARACTERISTICS Operating Input Voltage Input Under-Voltage Lockout Turn-On Voltage Threshold Turn-Off Voltage Threshold Lockout Hysteresis Voltage Maximum Input Current No-Load Input Current Off Converter Input Current Inrush Current(I2t) Input Reflected-Ripple Current Input Voltage Ripple Rejection OUTPUT CHARACTERISTICS Output Voltage Set Point Output Voltage Regulation Over Load Over Line Over Temperature Total Output Voltage Range Output Voltage Ripple and Noise Peak-to-Peak RMS Operating Output Current Range Output over current protection DYNAMIC CHARACTERISTICS Output Voltage Current Transient Positive Step Change in Output Current Negative Step Change in Output Current Settling Time (within 1% Vout nominal) Turn-On Transient Start-Up Time, From On/Off Control Start-Up Time, From Input Maximum Output Capacitance EFFICIENCY 100% Load 60% Load ISOLATION CHARACTERISTICS Input to Output Isolation Resistance Isolation Capacitance FEATURE CHARACTERISTICS Switching Frequency ON/OFF Control, Negative Remote On/Off logic Logic Low (Module On) Logic High (Module Off) ON/OFF Control, Positive Remote On/Off logic Logic Low (Module Off) Logic High (Module On) ON/OFF Current (for both remote on/off logic) Leakage Current (for both remote on/off logic) Output Voltage Trim Range (Across Pins 9 & 5, Pout ≦ max rated power) Output Voltage Remote Sense Range (option) Output Over-Voltage Protection GENERAL SPECIFICATIONS MTBF Weight Over-Temperature Shutdown
NOTES and CONDITIONS
L36SA05010 (Standard)
Min. Typ. Max. 80 100 130 125 2250 75 17 16 1 60 4 1 18 17 1.5 4 Units Vdc Vdc °C °C Vdc Vdc Vdc Vdc Vdc A mA mA A2s mA dB Vdc mV mV mV V mV mV A % mV mV us ms ms µF % % 2250 100 1500 300 Vdc MΩ pF kHz 0.7 18 0.7 18 1 50 10 10 10 6 3.06 24.2 134 V V V V mA uA % % % V M hours Grams °C
Refer to Figure21 for measuring point
-40 -55 18 16 15 0.75
100% Load, 18Vin
P-P thru 12µH inductor, 5Hz to 20MHz 120 Hz Vin=48V, Io=Io.max, Tc=25°C Io=Io,min to Io,max Vin=18V to 75V Ta=-40°C to 85°C Over sample load, line and temperature 5Hz to 20MHz bandwidth Full Load, 1µF ceramic, 10µF tantalum Full Load, 1µF ceramic, 10µF tantalum 4.95
20 60 5.0 ±5 ±5 ±30 3.25 50 15 0 110 5.05 ±10 ±10 3.35 100 30 10 150
48V, 10µF Tan & 1µF Ceramic load cap, 0.1A/µs 50% Io.max to 75% Io.max 75% Io.max to 50% Io.max
100 100 200 20 20
Full load; 5% overshoot of Vout at startup 89 89
1500
Von/off at Ion/off=1.0mA Von/off at Ion/off=0.0 µA Von/off at Ion/off=1.0mA Von/off at Ion/off=0.0 µA Ion/off at Von/off=0.0V Logic High, Von/off=15V Vin = 18V ~ 60V Vin = 61V ~ 75V Pout ≦ max rated power Over full temp range; % of nominal Vout Io=80% of Io, max; Ta=25°C Refer to Fig.21 for measuring point
2 2 -10 -5
DS_L36SA05010_02142007
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ELECTRICAL CHARACTERISTICS CURVES
8
90
7 6
LOSS (W)
75Vin 18Vin
EFFICIENCY (%)
80
48Vin
70
5 4 3 2 1
24Vin 18Vin
60
24Vin 48Vin
1 2 3 4 5 6 7 8 9 10
75Vin
50 1 2 3 4 5 6 7 8 9 10
OUTPUT CURRENT (A)
OUTPUT CURRENT (A)
Figure 1: Efficiency vs. load current for minimum, nominal, and maximum input voltage at 25°C
3.3 3 2.7 2.4
INPUT CURRENT(A)
Figure 2: Power dissipation vs. load current for minimum, nominal, and maximum input voltage at 25°C.
2.1 1.8 1.5 1.2 0.9 0.6 0.3 0 16 21 26 31 36 41 46 51 56 61 66 71
INPUT VOLTAGE(V)
Figure 3: Typical full load input characteristics at room temperature
DS_L36SA05010_02142007
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ELECTRICAL CHARACTERISTICS CURVES
For Negative Remote On/Off Logic
Figure 4: Turn-on transient at full rated load current (resistive load) (5 ms/div). Vin=48V.Top Trace: Vout, 2V/div; Bottom Trace: ON/OFF input, 5V/div
Figure 5: Turn-on transient at zero load current (5 ms/div). Vin=48V.Top Trace: Vout, 2V/div; Bottom Trace: ON/OFF input, 5V/div
For Positive Remote On/Off Logic
Figure 6: Turn-on transient at full rated load current (resistive load) (5 ms/div). Vin=48V.Top Trace: Vout, 2V/div; Bottom Trace: ON/OFF input, 5V/div
Figure 7: 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_L36SA05010_02142007
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ELECTRICAL CHARACTERISTICS CURVES
Figure 8: Output voltage response to step-change in load current (75%-50%-75% of Io, max; di/dt = 0.1A/µs). Load cap: 10µF, tantalum capacitor and 1µF ceramic capacitor. Top Trace: Vout (100mV/div,500us/div), Bottom Trace: I out (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 9: Output voltage response to step-change in load current (75%-50%-75% of Io, max; di/dt = 2.0A/µs). Load cap: 330µF, 35mΩ ESR solid electrolytic capacitor and 1µF ceramic capacitor. Top Trace: Vout (100mV/div, 500us/div), Bottom Trace: I out (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 Current. Note: Measured input reflected-ripple current with a simulated source Inductance (LTEST) of 12 µH. Capacitor Cs offset possible battery impedance. Measure current as shown above
DS_L36SA05010_02142007
5
ELECTRICAL CHARACTERISTICS CURVES
0
0
Figure 11: Input Terminal Ripple Current, ic, at full rated output current and nominal input voltage with 12µH source impedance and 33µF electrolytic capacitor (500 mA/div, 2us/div).
Figure 12: Input reflected ripple current, is, through a 12µH source inductor at nominal input voltage and rated load current (20 mA/div, 2us/div).
Copper Strip Vo(+)
10u Vo(-)
1u
SCOPE
RESISTIVE LOAD
Figure 13: Output voltage noise and ripple measurement test setup
DS_L36SA05010_02142007
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ELECTRICAL CHARACTERISTICS CURVES
5.5 5 4.5 4 3.5 3 2.5 2 1.5 1 0.5 0 0 5 10
0
Output voltage (V)
Out put cur r ent ( A)
Figure 14: Output voltage ripple at nominal input voltage and rated load current (Io=10A)(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) from the module.
Figure 15: Output voltage vs. load current showing typical current limit curves and converter shutdown points.
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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 the input of the module to improve the stability. The input source must be insulated from the ac mains by reinforced or double insulation. The input terminals of the module are not operator accessible. If the metal baseplate is grounded, one Vi pin and one Vo pin shall also be grounded. A SELV reliability test is conducted on the system where the module is used, in combination with the module, to ensure that under a single fault, hazardous voltage does not appear at the module’s output. When installed into a Class II equipment (without grounding), spacing consideration should be given to the end-use installation, as the spacing between the module and mounting surface have not been evaluated. The power module has extra-low voltage (ELV) outputs when all inputs are ELV. This power module is not internally fused. To achieve optimum safety and system protection, an input line fuse is highly recommended. The safety agencies require a normal-blow fuse with 10A maximum rating to be installed in the ungrounded lead. A lower rated fuse can be used based on the maximum inrush transient energy and maxi
