Page Page I-III 1-15 Encapsulated Type Open-Frame Type S36SE3R305 Datasheet
S36SE series 17W Single output DC/DC Converter FEATURES Efficiency up to 87% Package with Industry Standard Pinout Package Dimension: 29.4 x25.6 x10.2mm (1.16” x1.01” x0.40”) Isolation Voltage 1500VDC Operating Temperature range - 40°C to +85°C Six-sided shield metal case Lead free, RoHs Compliant Over current protection Short Output Protection 3 Years Product Warranty The S36SE series are miniature, isolated 17W DC/DC converters with 1500VDC isolation.
Output Characteristics Item Output Voltage Accuracy Output Voltage Balance Line Regulation Load Regulation Ripple & Noise (20MHz) Ripple & Noise (20MHz) Ripple & Noise (20MHz) Total Outupt Voltage Range Output DC Current-Limit Range Short Output Protection Output Over-Voltage Protection Conditions Dual Output, Balanced Loads Vin=18V to 75V Io=0% to 100% 3.
Mechanical Drawing Mechanical Dimensions Pin Connections Pin Function 1 +Vin 2 -Vin 3 on/off 4 -Vout 5 Trim 6 +Vout All dimensions in mm (inches) Tolerance: X.X±0.5 (X.XX±0.02) Pins Diameter : ±0.10(±0.004) X.XX±0.25 ( X.XXX±0.010) Physical Outline Case Size : Case Material : Baseplate material 29.4x25.6x10.2mm (1.16x1.01x0.40 Inches) Al alloy; finish: anodize black No conductive FR-4 Pin material Copper with matte Tin plating and Nickel under plating Weight : 18.
FEATURES High efficiency: 86.5% @3.3V/5A Industry standard 1x1 pinout Size: 27.9x24.4x8.7mm (1.10”x0.96”x0.
TECHNICAL SPECIFICATIONS TA = 25°C, airflow rate = 300 LFM, Vin = 48 Vdc, nominal Vout unless otherwise noted. PARAMETER NOTES and CONDITIONS S36SE3R305 (Standard) Min.
ELECTRICAL CHARACTERISTICS CURVES 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. Figure 3: Typical full load input characteristics at room temperature. Figure 4: (For negative remote on/off logic) Turn-on transient at full rated load current (5 ms/div). Vin=48V. Top Trace: Vout, 1V/div; Bottom Trace: ON/OFF input, 5V/div.
ELECTRICAL CHARACTERISTICS CURVES (CON.) Figure 7: (For positive remote on/off logic)Turn-on transient at zero load current (5 ms/div). Vin=48V. Top Trace: Vout, 1V/div; Bottom Trace: ON/OFF input, 5V/div. 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 (2A/div).
ELECTRICAL CHARACTERISTICS CURVES Figure 11: Input Terminal Ripple Current, ic, at full rated output current and nominal input voltage with 12µH source impedance and 33µF electrolytic capacitor (100mA/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 1u SCOPE RESISTIVE LOAD Vo(-) Figure 13: Output voltage noise and ripple measurement test setup Figure 14: Output vol
DESIGN CONSIDERATIONS Input Source Impedance Test Result 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.
FEATURES DESCRIPTIONS Over-Current Protection Remote On/Off The modules include an internal output over-current protection circuit, which will endure current limiting for an unlimited duration during output overload. If the output current exceeds the OCP set point, the modules will automatically shut down, and enter hiccup mode or latch mode, which is optional. The remote on/off feature on the module can be either negative or positive logic.
FEATURES DESCRIPTIONS (CON.) Output Voltage Adjustment ON/OFF To increase or decrease the output voltage set point, the modules may be connected with an external resistor between the TRIM pin and either the Vo(+) or Vo(-). The TRIM pin should be left open if this feature is not used.
THERMAL CONSIDERATIONS Thermal Derating Thermal management is an important part of the system design. To ensure proper, reliable operation, sufficient cooling of the power module is needed over the entire temperature range of the module. Convection cooling is usually the dominant mode of heat transfer. Heat can be removed by increasing airflow over the module. To enhance system reliability, the power module should always be operated below the maximum operating temperature.
PICK AND PLACE LOCATION SURFACE-MOUNT TAPE & REEL RECOMMENDED PAD LAYOUT (SMD) DS_S36SE3R305_09292014 11
LEADED (Sn/Pb) PROCESS RECOMMEND TEMP. PROFILE Temperature (°C ) 250 200 150 Ramp-up temp. 0.5~3.0°C /sec. 2nd Ramp-up temp. Peak temp. 1.0~3.0°C /sec. 210~230°C 5sec. Pre-heat temp. 140~180°C 60~120 sec. Cooling down rate <3°C /sec. 100 Over 200°C 40~50sec. 50 0 60 120 Time ( sec. ) 180 240 300 Note: The temperature refers to the pin of S36SE, measured on the pin +Vout joint. LEAD FREE (SAC) PROCESS RECOMMEND TEMP. PROFILE Temp. Peak Temp. 240 ~ 245 ℃ 217℃ Ramp down max. 4℃/sec.
MECHANICAL DRAWING Surface-mount module Pin No.
RECOMMENDED LAYOUT DS_S36SE3R305_09292014 14
PART NUMBERING SYSTEM S 36 S E Product Type Input Number of Product Voltage Outputs Series S - Small 18V~75V S - Single 1x1, 17W 3R3 05 Output Voltage Output Current 3R3 - 3.3V 05 - 5A Power N R F Pin ON/OFF Logic Length/Type N - Negative R - 0.170” (Default) P - Positive (Default) N - 0.145” E - No remote on/off control pin K - 0.110” S - 0.
