SRBA-06A2AX BEL | Alldatasheet
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Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com NON-ISOLATED DC/DC CONVERTERS 8.3 V-14 V Input 0.75 V-5.0 V/6 A Output
- Non-Isolated • Under-Voltage Lockout (UVLO)
- High Efficiency • OCP/SCP
- High Power Density • Wide Input
- Fixed Frequency • Wide Trim Range
- Remote On/Off
- Active Low/High
- Flexible Output Voltage Sequencing
Description
The Bel SRBA-06A2Ax modules are a series of non-isolated dc/dc converters that deliver up to 6 A of output current with full load efficiency of 92% at 5.0 V output. These modules provide precisely regulated voltage programmable via external resistor from 0.75 V to 5.0 V over a wide range of input voltage (8.3 V-14 V). These modules have a sequencing feature that enables designers to implement various types of output voltage sequencing when powering multiple voltages on a board. The open-frame construction and small footprint enable designers to develop cost and space-efficient solutions. Standard features include remote On/Off, over current protection, short current protection, wide input, and programmable output voltage. Part Selection Output Voltage Input Voltage Max. Output Current Max. Output Power Typical Efficiency Model Number Active Low Model Number Active High 0.75 V - 5.0 V 8.3 V - 14 V 6 A 30.0 W 92% SRBA-06A2AL SRBA-06A2A0 Note: Add “G” suffix at the end of the model number to indicate Tray Packaging. Absolute Maximum Ratings Parameter Min Typ Max Notes Input Voltage (continuous) -0.3 V - 15 V Output Enable Terminal Voltage -0.3 V - 15 V Sequencing Voltage 1 -0.3 V - Vin Ambient Temperature -40 °C - 85 °C Storage Temperature -55 °C - 125 °C Notes: All specifications are typical at 25 °C unless otherwise stated. 1. SRBA-06A2Ax series of modules include a sequencing feature that enables users to implement various types of output voltage sequencing in their applications. This is accomplished via an additional sequencing pin. When the sequencing feature is not used, tie the SEQ pin to Vin. SRBA-06A2Ax Series RoHS Compliant
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com NON-ISOLATED DC/DC CONVERTERS 8.3 V-14 V Input 0.75 V-5.0 V/6 A Output Input Specifications Parameter Min Typ Max Notes Input Voltage 8.3 V 12 V 14 V Input Current (full load) Vo=5.0 V Vo=3.3 V Vo=2.5 V Vo=1.8 V Vo=1.2 V Vo=0.75 V 2.75 A 1.85 A 1.45 A 1.05 A 0.75 A 0.55 A 4.0 A 2.8 A 2.2 A 1.6 A 1.1 A 0.8 A Input Current (no load) Vo=5.0 V Vo=0.75 V 100 mA 20 mA Remote Off Input Current - 1 mA 2 mA Input Reflected Ripple Current (pk-pk) - 120 mA - Input Reflected Ripple Current (rms) - 40 mA - Tested with two 100 uF/25 V tan input capacitors & simulated source impedance of 1 uH, 5 Hz to 20 MHz. I2t Inrush Current Transient - 0.002 A 2s0 . 0 2 A 2s Turn-on Voltage Threshold - 8.1 V 8.2 V Turn-off Voltage Threshold - 7.5 V 8.0 V Notes: All specifications are typical at 25 °C unless otherwise stated. Output Specifications Parameter Min Typ Max Notes Output Voltage Set Point -2%Vo,set - 2%Vo,set Vin=12 V, full load Output Voltage Set Point -2.5%Vo,set - 3.5%Vo,set Over all operating input voltages, resistive loads and temperature conditions Adjustment Range Selected by External Resistor or Voltage 0.7525 V - 5.0 V Load Regulation - 0.4%Vo,set - Io=Io, min to Io, max Line Regulation - 0.3%Vo,set - Vin=Vin, min to Vin, max Regulation Over Temperature (-40 °C to +85 °C) - 0.5%Vo,set - Tref=Ta, min to Ta, max Output Current 0 A - 6 A Current Limit Threshold 7.2 A - 18 A Short Circuit Surge Transient - 0.25 A 2s - Ripple and Noise (pk-pk) Vo=0.75 V-3.63 V 50 mV 75 mV Ripple and Noise (rms) Vo=0.75 V-3.63 V 15 mV 30 mV Ripple and Noise (pk-pk) Vo=5.0 V 75 mV 100 mV Ripple and Noise (rms) Vo=5.0 V 30 mV 40 mV Tested with 0-20 MHz, with 10 uF/10 V tantalum capacitor & 1 uF/10 V TDK ceramic capacitor at the output. Turn on Time - 8 mS 10 mS Overshoot at Turn on - 0% 3% Output Capacitance ESR ≥ 1 mohm ESR ≥ 10 mohm 0 uF 0 uF 1000 uF 3000 uF
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com NON-ISOLATED DC/DC CONVERTERS 8.3 V-14 V Input 0.75 V-5.0 V/6 A Output Output Specifications (Continued) Parameter Min Typ Max Notes Transient Response 50% ~ 100% Max Load - 200 mV - Settling Time - 50 uS - 100% ~ 50% Max Load - 200 mV - Settling Time VO = 0.75 - 5 V - 50 uS - di/dt=2.5 A/uS; Vin=12 V; and with 10 uF/10 V tantalum capacitor & 1 uF/
10 V ceramic capacitor at the
output. Note: All specifications are typical at nominal input (Vin=12 V), full load at 25 °C unless otherwise stated. General Specifications Parameter Min Typ Max Notes Efficiency Vo=5.0 V Vo=3.3 V Vo=2.5 V Vo=1.8 V Vo=1.2 V Vo=0.75 V 90% 87% 85% 83% 79% 71% 92% 89% 88% 86% 82% 74% Measured at Vin=12 V, full load Switching Frequency 250 kHz 300 kHz 350 kHz Over Temperature Shutdown - 135 °C - Output Trim Range (wide trim) 0.7525 V - 5 V MTBF 3,079,469 hours Calculated Per Bell Core SR-332 (IO = Nominal; Ta = 25 °C) Dimensions Inches (L × W × H) Millimeters (L × W × H) 0.8 x 0.45 x 0.251 20.32 x 11.42 x 6.38 Weight - 3 g - Note: All specifications are typical at 25 °C unless otherwise stated. Control Specifications Parameter Min Typ Max Notes Signal Low (Unit Off) -0.3 V - 0.4 V Signal High (Unit On) 2.5 V - 14 V SRBA-06A2A0; Remote On/Off pin open, Unit on. Signal Low (Unit On) -0.3 V - 0.4 V Signal High (Unit Off) 2.5 V - 14 V SRBA-06A2AL; Remote On/Off pin open, Unit on. Sequencing Voltage 0 V - Vin Sequencing Voltage applied on SEQ pin should be higher than output voltage. Sequencing Slew Rate Capability - - 2 V/mS Sequencing Delay Time 10 mS - - Delay from Vin, min to application of voltage on SEQ pin Tracking Accuracy Power-Up Power-Down 100 mV 200 mV 200 mV 400 mV
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com NON-ISOLATED DC/DC CONVERTERS 8.3 V-14 V Input 0.75 V-5.0 V/6 A Output Output Trim Equations Equation for calculating the trim resistor (in k Ω) given the desired adjusted voltage (Vadj) is shown below. The Trim Up resistor should be connected between the Trim pin and Ground. 17525.0 507.10 −−= adj trim VR Equation for calculating the trim voltage (in V) given the desired adjusted voltage (Vadj) is shown below. The Trim Up voltage should be connected between the Trim pin and Ground. )7525.0(0667.07.0 −×−= adjtrim VV RtrimModule Vout GND Trim Vtrim Module Vout GND Trim
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com NON-ISOLATED DC/DC CONVERTERS 8.3 V-14 V Input 0.75 V-5.0 V/6 A Output Efficiency Data MODULE 5.0V 75.0% 80.0% 85.0% 90.0% 95.0% 100.0% 1A 2A 3A 4A 5A 6A OUTPUT CURRENT EFFICIENCY 8.3V 12.0V 14.0V MODULE 3.3V 60.0% 65.0% 70.0% 75.0% 80.0% 85.0% 90.0% 95.0% 1A 2A 3A 4A 5A 6A OUTPUT CURRENT EFFICIENCY 8.3V 12.0V 14.0V MODULE 2.5V 60.0% 65.0% 70.0% 75.0% 80.0% 85.0% 90.0% 95.0% 1A 2A 3A 4A 5A 6A OUTPUT CURRENT EFFICIENCY 8.3V 12.0V 14.0 V MODULE 1.8V 60.0% 65.0% 70.0% 75.0% 80.0% 85.0% 90.0% 95.0% 1A 2A 3A 4A 5A 6A OUTPUT CURRENT EFFICIENCY 8.3V 12.0V 14.0 V MODULE 1.2V 50.0% 60.0% 70.0% 80.0% 90.0% 1A 2A 3A 4A 5A 6A OUTPUT CURRENT EFFICIENCY 8.3V 12.0V 14.0V MODULE 0.75V 50.0% 60.0% 70.0% 80.0% 90.0% 1A 2A 3A 4A 5A 6A OUTPUT CURRENT EFFICIENCY 8.3V 12.0V 14.0 V
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com NON-ISOLATED DC/DC CONVERTERS 8.3 V-14 V Input 0.75 V-5.0 V/6 A Output Thermal Derating Curves Vin=12 V, Vo=0.75 V Vin=12 V, Vo=2.5 V Vin=12 V, Vo=5.0 V
©2005 Bel Fuse Inc. Specifications subject to change without notice. 120205 CORPORATE FAR EAST EUROPE Bel Fuse Inc. Bel Fuse Ltd. Bel Fuse Europe Ltd.
206 Van Vorst Street 8F/ 8 Luk Hop Street Preston Technology Management Centre
Jersey City, NJ 07302 San Po Kong Marsh Lane, Suite G7, Preston Tel 201-432-0463 Kowloon, Hong Kong Lancashire, PR1 8UD, U.K. Fax 201-432-9542 Tel 852-2328-5515 Tel 44-1772-556601 www.belfuse.com Fax 852-2352-3706 Fax 44-1772-888366 www.belfuse.com www.belfuse.com NON-ISOLATED DC/DC CONVERTERS 8.3 V-14 V Input 0.75 V-5.0 V/6 A Output Mechanical Outline RoHS Compliance Complies with the European Directive 2002/95/EC, calling for the elimination of lead and other hazardous substances from electronic products. Pin Connections Pin Function
1 Remote On/Off
2 Vin+
3 SEQ
4 Ground
5 Trim
6 Vout+
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