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| NON-ISOLATED DC/DC CONVERTERS 2.4V-5.5V Input 0.75V-3.63V/16A Output V7BC-16F2AX Series * * * * * * * Non-Isolated High Efficiency High Power Density OCP/SCP Fixed Frequency (300kHz) Flexible Output Voltage Sequencing Remote On/Off * * * * * * * Under-voltage Lockout (UVLO) Over Temperature Protection Remote Sense Wide Input Wide Trim Converter can sink and source Current Active Low/High (option) Description The Bel V7BC-16F2AX modules are a series of non-isolated DC/DC converters that can deliver up to 16A of output current with full load efficiency of 94% at 3.3V output. These modules provide precisely regulated voltage programmable via external resistor from 0.75Vdc to 3.63Vdc over a wide range of input voltage(2.4V-5.5V). These modules have a sequencing feature that enables designers to implement various types of output voltage sequencing when powering multiple voltages on a board. Their open-frame construction and small footprint enable designers to develop cost and space-efficient solutions. Standard features include remote ON/OFF, programmable output voltage and over current protection. Part Selection Output Voltage 0.75 V- 3.63V Input Voltage 2.4V - 5.5V Max. Output Current 16A Max. Output Power 58.1W Typical Efficiency 94% Model Number Active Low V7BC-16F2AL Model Number Active High V7BC-16F2A0 Note: Add "G" suffix at the end of the model number to indicate "Tray Packaging". Absolute Maximum Ratings Parameter Input Voltage (continuous) Output Enable Terminal Voltage Sequencing Voltage 1 Min -0.3V -0.3V -0.3V -40C -55C Typ - Max 5.8V 5.8V Vin 85C 125C Notes Ambient Temperature Storage Temperature Notes: All specifications are typical at 25C unless otherwise stated. 1. V7BC-16F2AX 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. 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 2.4V-5.5V Input 0.75V-3.63V/16A Output Input Specifications Parameter Input Voltage Vo=3.3V Vo=1.8V-2.5V Vo 1.5V Vo=3.3V Vo=1.8V Vo=0.75V Input Current (no load) Remote Off Input Current Input Reflected Ripple Current (pk-pk) Input Reflected Ripple Current (RMS) I t Inrush Current Transient Turn-on Voltage Threshold Turn-off Voltage Threshold 2 Min 4.5V 3.0V 2.4V - Typ 11.23A 6.47A 3.08A 80mA 10mA 100mA 40mA 0.15A s 2.2V 2.0V 2 Max 5.5V 5.5V 5.5V 12.89A 13.55A 6.67A 22mA 0.3A s 2 Notes Input Current (full load) Tested with two 100uF/10V tantalum input capacitors (P/N: TPSC107K010R0075 AVX) & simulated source impedance of 1uH, 5Hz to 20MHz. Output Specifications Parameter Output Voltage Set Point Output Voltage Set Point Load Regulation Line Regulation Regulation Over Temperature (-40C to +85C) Output Current Current Limit Threshold Short Circuit Surge Transient Ripple and Noise (pk-pk) Ripple and Noise (RMS) Turn on Time Overshoot at Turn on Output Capacitance ESR 1mohm ESR 10mohm Transient Response 50% ~ 100% Max Load Settling Time 100% ~ 50% Max Load Settling Time 2 Transient Response 50% ~ 100% Max Load Settling Time 100% ~ 50% Max Load Settling Time 1 Min -2%Vo,set -3%Vo,set 0A 19A 0uF 0uF - Typ 0.4%Vo,set 0.3%Vo,set 0.5%Vo,set 2 1.6A s 25mV 8mV 4mS 0%Vo,set 300mV 50uS 300mV 50uS 150mV 100uS 150mV 100uS Max 2%Vo,set 3%Vo,set 16A 35A 2 2A s 50mV 15mV 8mS 3%Vo,set 1000uF 5000uF - Notes Vin=5V, lo=lomax full load Over all operating input voltages, resistive loads and temperature conditions Io=Io, min to Io, max Vin=Vin, min to Vin, max Tref=Ta, min to Ta, max Tested with 0-20MHz, 10uF/16V tantalum capacitor & 1uF/10V TDK ceramic capacitor at output VO=0.75V 3.3V di/dt=2.5A/uS; Vin=5V; and with 10uF/16V tantalum capacitor & 1uF/10V ceramic capacitor at output di/dt=2.5A/uS; Vin=5V; and with two 150uF/10V tantalum capacitors & 1uF/10V ceramic capacitor at output VO=0.75V 3.3V Note: All specifications are typical at nominal input (Vin=5V), full load at 25C unless otherwise stated. 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 2.4V-5.5V Input 0.75V-3.63V/16A Output General Specifications Parameter Efficiency Vo=3.3V Vo=1.8V Vo=0.75V Switching Frequency Over Temperature Shutdown Output Trim Range (Wide Trim) Remote Sense Compensation MTBF Dimensions Inches (L x W x H) Millimeters (L x W x H) Weight 2.0 x 0.5 x 0.363 50.80 x 12.7 x 9.23 8.3g 91% 86% 75% 250KHz 0.7525V 94% 89% 78% 300KHz 125C 5,109,613 hours 350KHz 3.63V 5% Measured at Vin=5V, full load Min Typ Max Notes Calculated Per Bell Core TR-332 (IO = Nominal; Ta = 25C) Note: All specifications are typical at 25C unless otherwise stated. Control Specifications Parameter Signal Low (Unit Off) Signal High (Unit On) Signal Low (Unit On) Signal High (Unit Off) Sequencing Voltage Sequencing Slew Rate Capability Sequencing Delay Time Tracking Accuracy Power-Up Power-Down 100mV 200mV 200mV 400mV Min -0.3V 1.5V -0.3V 1.5V 0.05V 10mS Typ Max 0.3V 5.8V 0.3V 5.8V Vin 2V/mS Delay from Vin, min to application of voltage on SEQ pin Notes V7BC-16F2A0; Remote On/Off pin open, Unit on. V7BC-16F2AL; Remote On/Off pin open, Unit on. Sequencing Voltage should be higher than output voltage. Output Trim Equations Equation for calculating the trim resistor (in k) given the desired adjusted voltage (Vadj) is shown below. The Trim Up resistor should be connected between the Trim pin and Ground. Vout Rtrim 21.07 = - 5.11 Vadj - 0.7525 Module Trim GND Rtrim 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. Vtrim = 0.7 - 0.1698 x (Vadj - 0.7525) Vout Module Trim Vtrim GND 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 2.4V-5.5V Input 0.75V-3.63V/16A Output Efficiency Data 98.0% 96.0% 94.0% 92.0% 90.0% 88.0% 86.0% 4.5V 84.0% 5.0V 82.0% 5.5V 80.0% 1.6 4.0 8.0 12.0 16.0 Vo=3.3V 100.0% 95.0% 90.0% 85.0% 80.0% 3.0V 5.0V 5.5V 70.0% 1.6 4.0 8.0 12.0 16.0 75.0% Vo=1.8V 95.0% 90.0% 85.0% 80.0% 75.0% 70.0% 65.0% 60.0% 1.6 2.4V 5.0V 5.5V 4.0 8.0 12.0 16.0 Vo=0.75V 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 2.4V-5.5V Input 0.75V-3.63V/16A Output Thermal Derating Curves V7BC-16F2A0, Vo=3.3V V7BC-16F2A0, Vo=1.8V V7BC-16F2A0, Vo=0.7525V 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 2.4V-5.5V Input 0.75V-3.63V/16A Output Pin Connections Pin 1 2 3 4 5 6 7 8 9 10 11 Function Vout Vout Vo,sense Vout Ground Ground Vin Vin SEQ Trim Remote On/Off (c)2005 Bel Fuse Inc. Specifications subject to change without notice. 033005 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 |
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