SRDC-16D25D

NON-ISOLATED DC/DC CONVERTERS 4.50 – 15V Input / 2.5V Output / 16A SRDC-16D250 Module • • • • • • • • • • • Nonisolated Industry standard pinout Fixed frequency High efficiency means less power dissipation High power density Optimized for cost Remote on/off Programmable undervoltage lockout (UVLO) Over current and short circuit protection Two phase operation Non-latching over temperature shutdown protection POWER PRODUCTS BP06SRDC-16D250 RoHS Compliant Description The Bel SRDC-16D250 module is one in a series of non-isolated, DC/DC power converters that operate from a wide input range of 3V minimum to 15V maximum. This converter is available with 2.5V output. It uses a low profile, surface mount DIP package for ease of layout and space savings. 16A maximum output is also provided. Standard features include remote on/off, over current and short circuit protection, programmable UVLO and output voltage adjust. Optional features include two-wire remote sense or single-ended remote sense with a good power signal. This module also makes use of adaptive positioning to improve transient response performance. It may be used almost anywhere low voltage silicon is employed and a 4.50 to 15V source is available. Typical applications include file servers, routers, line cards and other computing and communications equipment. Applications • • • Telecommunications Networking Computers and peripherals Options • • Double-ended remote sense Power good signal Part Number Selection Output Voltage 2.5V Input Voltage 4.50 - 15V Max. Output Current 16A Max. Output Power 40W Typical Efficiency 91% Part Number Part Number Power Good Signal & Remote Sense SRDC-16D25S Part Number Double-ended Remote Sense SRDC-16D25D SRDC-16D250 ©2006 Bel Fuse Inc. Specifications subject to change without notice. 06.06 Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com page 1 POWER PRODUCTS BP06SRDC-16D250 NON-ISOLATED DC/DC CONVERTERS 4.50 – 15V Input / 2.5V Output / 16A Absolute Maximum Ratings Parameter Continuous Input Voltage Output Enable Terminal Voltage1 Ambient Temperature Storage Temperature Symbol Vin Vouten Tamb Tstor Min -0.3 -0.3 0 -40 Typical Max 15 6 70 105 Unit V V °C °C Note: Use beyond the maximum ratings may cause a reliability degradation of the DC/DC converter or may permanently damage the device. 1. The enable pin performs two functions, remote on/off and programmable under voltage lockout. The factory set UVLO point is 3.0V typical, but can be adjusted upward with the addition of a single external resistor located from the enable pin to ground. Turning the converter on and off is accomplished using an open collector/drain device as a switch. The enable pin is internally pulled up to Vin through a 12.1K ohm resistor and the pin’s logic is active high. Input Specifications Parameter Operating Input Voltage Input Current (Vin=5.0V) Input Current (Vin=12.0V) No Load Input Current (Vin=5.0V) No Load Input Current (Vin=12.0V) Input Reflected Ripple Current1 Input Reflected Ripple Current (P-P)1 I2t Inrush Current Transient Turn On Voltage Threshold2 Turn Off Voltage Threshold 3.50 3.93 3.73 3.80 Symbol Vin Iin Iin Iin Iin Min 4.50 Typical Max 15 9 4 170 140 50 100 0.1 Units V A A mA mA mArms mApk A 2s V V Note: Input capacitance 100µF/16V, ESR = 0.03 Ω max at 100kHz @ 25° C. 1. With simulated source impedance of 500nH, 5Hz to 20MHz. 2. UVLO is adjustable by terminating on/off pin to ground per the termination resistance table on page 6. ©2006 Bel Fuse Inc. Specifications subject to change without notice. 06.06 Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com page 2 NON-ISOLATED DC/DC CONVERTERS 4.50 – 15V Input / 2.5V Output / 16A POWER PRODUCTS BP06SRDC-16D250 Output Specifications Parameter Output Voltage Set Point Load Regulation (Droop Impedance) Line Regulation Input Voltage 4.75V to 15V Line Regulation Input Voltage 12V ±20% Regulation Over Temperature 0° - 70° C Output Ripple and Noise1 Output Ripple and Noise1 Output Current Range Output DC Current Limit Turn on Time Vin to Vout or on/off to Vout Overshoot at Turn On Output Capacitance Transient Response 2 Symbol Vout Rout Min 2.5 2 Typical 2.55 2.5 Max 2.6 3 Units V mΩ mV 15 25 mV 3 10 mV 10 25 10 Iout Ioutlim Ton 8 0 Cout 100 0 18 25 40 20 16 22 mVp-p mVrms A A ms 10 1 2200 % µF (Vin=5.0V) 120 Ts 100 120 Ts 100 150 120 150 120 mV µs mV µs ∆V 50% to 100% of Max Load Settling Time ∆V 100% to 50% of Max Load Settling Time Transient Response 2 (Vin=12.0V) ∆V 50% to 100% of Max Load Settling Time ∆V 100% to 50% of Max Load Settling Time Ts Ts 110 100 110 100 140 120 140 120 mV µs mV µs Note: All specifications are typical at nominal input, full load at 25° C unless otherwise stated. 1. 0 - 20MHz BW, 0.1µF ceramic cap on output. 2. di/dt = 1A/1µS, Ta = 25° C with a 560µF oscon cap on output. ©2006 Bel Fuse Inc. Specifications subject to change without notice. 06.06 Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com page 3 POWER PRODUCTS BP06SRDC-16D250 NON-ISOLATED DC/DC CONVERTERS 4.50 – 15V Input / 2.5V Output / 16A General Specifications Parameter Efficiency1 (Vin=5.0V) Efficiency (Vin=12.0V) Switching Frequency Output Voltage Trim Range3 Remote Sense Compensation (when option specified) Weight 16 2 Symbol η η Fsw Min 90 86.5 495 90 Typical 91 87.5 550 Max Units % % 605 110 0.5 kHz % mV g 1. Vin=5V, full load and Ta=25° C. 2. Vin=12V, full load and Ta=25° C. 3. See graph on page 6. Control Specifications Parameter Remote On/Off Open Circuit Voltage (Vin=5.0V) Remote On/Off Open Circuit Voltage (Vin=12.0V) Remote On/Off Impedance Limitation (pin pulled up to +Vin) Signal Low (Unit Off) Signal High (Unit On) Power Good Levels (when option specified) Signal Low Current Sink Signal High (signal is open collector) Under Voltage Threshold Vout rising Under Voltage Threshold Vout falling Vpg 0.18 0.4 4 V mA V 5 V 3.04 V 2.97 Symbol Vouten Min Typical Max 2.1 Units V Vouten Renable 5.1 V kΩ 11.5 -0.3 1.5 0.3 5.5 V V Note: On/off pin designed to work with an open collector/drain switch. ©2006 Bel Fuse Inc. Specifications subject to change without notice. 06.06 Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com page 4 NON-ISOLATED DC/DC CONVERTERS 4.50 – 15V Input / 2.5V Output / 16A POWER PRODUCTS BP06SRDC-16D250 Efficiency Data Module 2.50V 100% 80% Efficiency 60% 40% 20% 0% 1.6 4.0 8.0 Output Current 12.0 16.0 5.0V 12V ©2006 Bel Fuse Inc. Specifications subject to change without notice. 06.06 Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com page 5 POWER PRODUCTS BP06SRDC-16D250 NON-ISOLATED DC/DC CONVERTERS 4.50 – 15V Input / 2.5V Output / 16A Termination Resistance Termination Resistance Open Circuit 21K Ω 5.90K Ω 4.99K Ω 3.06K Ω 2.61K Ω 2.10K Ω 2.05K Ω Rising Vin UVLO 3.93V 4.50V 6.06V 6.48V 8.10V 9.09V 10.54V 10.72V Falling Vin UVLO 3.73V 4.33V 5.86V 6.24V 7.65V 8.56V 9.55V 9.69V UVLO Output Voltage Trim Range ©2006 Bel Fuse Inc. Specifications subject to change without notice. 06.06 Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com page 6 NON-ISOLATED DC/DC CONVERTERS 4.50 – 15V Input / 2.5V Output / 16A POWER PRODUCTS BP06SRDC-16D250 Ripple and Noise Ripple and noise at full load and 12.0Vdc input, and Ta=25° C Ripple and noise at full load and 12.0Vdc input, and Ta=25° C with 560 µF external cap ©2006 Bel Fuse Inc. Specifications subject to change without notice. 06.06 Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com page 7 POWER PRODUCTS BP06SRDC-16D250 NON-ISOLATED DC/DC CONVERTERS 4.50 – 15V Input / 2.5V Output / 16A Transient Response Transient response: di/dt = 1.0A/µS Vout=2.5V 50% to 100% load transients at 12.0V input and Ta=25° C Vout=2.5V 100% to 50% load transients at 12.0V input and Ta=25° C Transient response: di/dt = 1.0A/µS, external load capacitance 560µF Vout=2.5V 50% to 100% load transients at 12.0V input and Ta=25° C Vout=2.5V 100% to 50% load transients at 12.0V input and Ta=25° C ©2006 Bel Fuse Inc. Specifications subject to change without notice. 06.06 Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com page 8 NON-ISOLATED DC/DC CONVERTERS 4.50 – 15V Input / 2.5V Output / 16A POWER PRODUCTS BP06SRDC-16D250 Thermal Considerations Derating Curve VIN = 12V 18 16 14 Output Current (A) 200LFM 100LFM Natural Convection 12 10 8 6 4 2 0 0 10 20 30 40 50 60 70 Ambient Temperature, Ta (˚C) Output Current vs. Local Ambient Temperature and Air Velocity Derating Curve VIN = 5V (and 3.3V where applicable) 18 16 14 Output Current (A) 200LFM 100LFM Natural Convection 12 10 8 6 4 2 0 0 10 20 30 40 50 60 70 Ambient Temperature, Ta (˚C) Output Current vs. Local Ambient Temperature and Air Velocity ©2006 Bel Fuse Inc. Specifications subject to change without notice. 06.06 Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com page 9 POWER PRODUCTS BP06SRDC-16D250 NON-ISOLATED DC/DC CONVERTERS 4.50 – 15V Input / 2.5V Output / 16A Mechanical 0.100 [2.54] 2.013 [51.13] max 0.090 [2.29] 4 3 2 9 8 7 6 5 0.200 [5.08] 0.400 [10.17] 0.200 [5.08] 0.600 [15.23] 0.800 1.020 [20.33] [25.91] max 0.120 [3.05] 1 2.125 [53.98] 2.305 [58.55] Recommended PCB Pad Layout 0.300 [7.62] 0.070 [1.78] 2.265 [57.52] max 0.400 [10.17] max Dimensions are in inches [millimeters]. Standard dimension tolerance is ±0.005 [0.13] unless otherwise noted. Pin 1 2 31 42 5 6 7 8 9 Function Control Ground On/Off Control No Connection No Connection +Vo Trim Power Ground Power Ground +Vin 1. Pin 3 not used on module S7DC-16D250, used for - sense on S7DC-16D25D and used for power good signal on the S7DC-16D33S module. 2. Pin 4 not used on module S7DC-16D250, used for + sense on both the S7DC-16D25S and S7DC-16D25D modules. RoHS Compliance Complies with the European Directive 2002/95/EC, calling for the elimination of lead and other hazardous substances from electronic products. 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 240ºC. ©2006 Bel Fuse Inc. Specifications subject to change without notice. 06.06 CORPORATE Bel Fuse Inc. 206 Van Vorst Street Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com FAR EAST Bel Fuse Ltd. 8F / 8 Luk Hop Street San Po Kong Kowloon, Hong Kong Tel 852-2328-5515 Fax 852-2352-3706 www.belfuse.com EUROPE Bel Fuse Europe Ltd. Preston Technology Management Centre Marsh Lane, Suite G7, Preston Lancashire, PR1 8UD, U.K. Tel 44-1772-556601 Fax 44-1772-888366 www.belfuse.com page 10