SRBL-30A1A BEL | Alldatasheet

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Technical content

The Bel’s SRBL-30A1A0 is part of non-isolated DC-DC Converter Power Block Series. This converter is available in a range of output voltages from 0. 8 VDC to 5.0 VDC over a wide input voltage range and uses an SMD package.

  • Input Voltage 13.2 VDC max.
  • Output Voltage range 0.8 VDC – 5.0 VDC / 35 A
  • Non-Isolated
  • Low Cost
  • High Efficiency
  • High Power Density
  • Approved to UL/CSA 60950-1, 2nd ed. Class II, Category 2, Isolated DC/DC Converter
  • Computers and Peripherals
  • Networking
  • Telecommunications

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tech.support@psbel.com OUTPUT VOLTAGE MAX. INPUT VOLTAGE MAX. OUTPUT CURRENT TYPICAL EFFICIENCY (Vo = 1.8 V) MODEL NUMBER 0.8 – 5.0 VDC 13.2 VDC 35 A 92% SRBL-30A1A0 NOTE: Add “G” suffix at the end of the model number to indicate tray package. PARAMETER DESCRIPTION MIN TYP MAX UNITS Continuous Input Voltage -0.3 - 15 V Voltage at Pin5 (+7 V) -0.3 - 8.8 V Voltage at Pin3 (PWM) -0.3 - 8.8 V Operating Temperature Please see the TD curve for detail. -5 - 113 C Storage Temperature -40 - 125 C NOTE: All specifications are typical at 25C unless otherwise stated. PARAMETER DESCRIPTION MIN TYP MAX UNIT Operating Input Voltage - - 13.2 V Input Current Tested at Vin = 7 V, Vout = 5 V, Iout = 30 A - - 23.5 A Input Current (no load) - - 80 mA Input Capacitance 1,2 - 40 - µF +7 V (Pin5) Operating 6.7 7.0 7.5 V Under-voltage lockout, rising - - 6.7 V Under-voltage lockout, falling 4.7 - - V Hysteresis - 1.0 - V Current (switching at 500 kHz) - - 100 mA PWM (Pin3) 3 High 4 - 5.5 V Low - - 0.4 V Tri-state current 1 -10 - 10 µA NOTES: 1 4x 10 uF / 16 V on power block 2 Additional input capacitors are to be added externally as part of the buck regulator design. 3 Sourcing or sinking current to/from PWM (Pin 3) without the specified range will result in both high and low-side MOSFET's to be held off by the gate-driver circuitry. S R BL - 30 A 1A 0 x Mounting type RoHS status Series name Output current Wide input range Output voltage Option Package SMD package RoHS 6 SRBL seires 35 A 13.2 V Max 0.8 – 5.0 V output Standard G – Tray

+86 755 298 85888 Europe, Middle East +353 61 225 977 North America +1 408 785 5200 © 2019 Bel Power Solutions & Protection Rev. AC PARAMETER DESCRIPTION MIN TYP MAX UNIT Output Current Range 1 Vout = 1.0 V 0 - 35 A Output Current Range 1 Vout = 1.8 V 0 - 30 A Output Capacitance 2,3 - 20 - µF Output-to-GND Resistor 4 - 200 - Ω Inductor Inductance - 380 - nH DCR (25°C) 5 0.51 0.57 mΩ Isat (125°C) - 40 - A NOTES: 1 Vin from 7V to 12V input, switching at 500 KHz. 2 2x 10uF/0805/6.3V/X7R + 1x 0402/0.1uF/16V/X7R on power block. 3 Additional output capacitors are to be added externally as part of the buck regulator design. 4 0805 resistor on power block. 5 See Block Diagram for DCR sense requirements. 6 All specifications are typical at nominal input, 25°C unless otherwise stated. PARAMETER DESCRIPTION MIN TYP MAX UNIT Efficiency 1,2 Vo = 1.0 V, Io = 35 A - 87.5 - Vo = 1.8 V, Io = 30 A - 92 - Output Voltage Range 0.8 - 5.0 V Temperature Sense Bias current sourced from controller (into Pin 4) - 495 - µA Voltage at 25°C (Pin 4) 1.345 1.35 1.355 V Temperature coefficient (0 to 130°C) - -4.4 - mV/C Weight - 8.1 - g Dimensions (L × W × H) 1.00 x 0.50 x 0.48 in 25.40 x 12.70 x 12.19 mm NOTES: 1 Vin from 7 V to 12 V input full load output current, switching at 450 kHz with 200 LFM at 55 ˚C. 2 Gate drive is included. For the purpose of this calculation, gate drive loss is assumed to be 0.2 W.

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7 V to 12 V input, switching at 400 kHz, with 200 LFM at 25 ˚C. Figure 1. Vo = 1.0 V Figure 2. Vo = 1.8 V Figure 3. Temperature Sense Figure 4. Temperature reference point

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tech.support@psbel.com The SRBL-30A1A0 modules are designed to be compatible with reflow soldering process. The suggested Pb-free solder paste is Sn/Ag/Cu (SAC). The recommended reflow profile using Sn/Ag/Cu solder is shown in the following. Recommended reflow peak temperature is 245 ˚C while the part can withstand peak temperature of 260 ˚C maximum for 10 seconds. This profile should be used only as a guideline. Many other factors influence the success of SMT reflow soldering. Since your production environment may differ, please thoroughly review these guidelines with your process engineers. The SRBL-30A1A0 modules have a MSL rating of 3. The SRBL-30A1A0 modules are designed to be compatible with J-STD-033 Rev:A (Handling, Packing, Shipping and Use of Moisture /Reflow Sensitive surface Mount devices). Moisture barrier bags (MBB) with desiccant are applied. The recommended storage environment and handling procedure is detailed in J-STD-033. This component has been designed, handled, and packaged ready for Pb-free reflow soldering. If the assembly shop follows J- STD-033 guidelines, no pre-bake of this component is required before being reflowed to a PCB. However, if the J-STD-033 guidelines are not followed by the assembler, Bel recommends that the modules should be pre-baked @ 120~125 ˚C for a minimum of 4 hours (preferably 24 hours) before reflow soldering.

+86 755 298 85888 Europe, Middle East +353 61 225 977 North America +1 408 785 5200 © 2019 Bel Power Solutions & Protection Rev. AC PIN FUNCTION PIN FUNCTION

1 Vout 6 Vin

2 GND 7 -CS

3 PWM 8 +CS

4 TEMP 9 GND

  • - 11 GND NOTE: These parts are not however compatible with the higher temperatures associated with lead free solder processes and must be soldered using a reflow profile with a peak temperature of no more than 245 C. NOTES: 1) All Pins: Material - Copper Alloy; Finish – 3 micro inches minimum Gold over 50 micro inches minimum Nickel plate 2) Undimensioned components are shown for visual reference only.

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tech.support@psbel.com

+86 755 298 85888 Europe, Middle East +353 61 225 977 North America +1 408 785 5200 © 2019 Bel Power Solutions & Protection Rev. AC DATE REVISION CHANGES DETAIL APPROVAL 2012-01-17 PA First Release XF Jiang 2012-11-16 PB Updated TD, Operation Temperature. XF Jiang 2019-03-20 AC NUCLEAR AND MEDICAL APPLICATIONS - Products are not designed or intended for use as critical components in life support systems, equipment used in hazardous environments, or nuclear control systems. TECHNICAL REVISIONS - The appearance of products, including safety agency certifications pictured on labels, may change depending on the date manufactured. Specifications are subject to change without notice.