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| ISOLATED DC/DC CONVERTERS 48V Input 3.3V/7A or 5V/5A or 12V/2.5A Output 07LC-25T Series * * * * * * Compact Through-hole Package Excellent Thermal Performance 1500V Isolation High Efficiency High Power Density Wide Input Voltage * * * * * * Remote On/Off Output Voltage Trim Input Under Voltage Lockout Over Voltage Protection SCP/OCP Over Temperature Protection Description The 07LC-25Txx0 series converters are isolated DC/DC converters that operate from a nominal 48V source. These converters provide up to 25W of output power. These units are designed to be high efficient and very low cost. Features include remote on/off, output adjust, short circuit protection, over current protection, overtemperature protection, and input under voltage lockout. These converters are provided in a compact, throughhole package that is easy to use and provides good thermal performance, and are pin-to-pin compatible with the Emerson AG25 Series. Part Selection Output Voltage 12.0V 5.0V 3.3V Input Voltage 36 - 75V 36 - 75V 36 - 75V Max. Output Current 2.5A 5A 7A Max. Output Power 30.0W 25.0W 23.0W Typical Efficiency 90% 90% 88% Model Number 07LC-25T120 07LC-25T050 07LC-25T033 Note: Add "G" suffix at the end of the model number to indicate Tray Packaging. Absolute Maximum Ratings Parameter Input Voltage (continuous) Remote On/Off Ambient Temperature Storage Temperature Min -0.3V -0.3V -40C -55C Typ Max 80V 12V 85C 125C Notes Input Specifications Parameter Input Voltage Input Current (no load) Input Current (full load) Remote Off Input Current Input Reflected Ripple Current (RMS) Input Reflected Ripple Current (pk-pk) I2t Inrush Current Transient Turn-on Input Voltage Turn-off Input Voltage Min 36V 31V 30V Typ 25mA 3mA 10mA 40mA 0.0012A s 34V 33V 2 Max 75V 40mA 1.1A 10mA 20mA 60mA 0.0024A2s 36V 35V Notes Tested with simulated source impedance of 10uH, 5Hz to 20MHz and a 100uF/100V electrolytic capacitor with ESR=1 ohm max, at 200KHz Note: All specifications are typical 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 ISOLATED DC/DC CONVERTERS 48V Input 3.3V/7A or 5V/5A or 12V/2.5A Output Output Specifications Parameter Output Voltage Set Point VO=3.3V VO=5.0V VO=12.0V Line Regulation VO=3.3V VO=5.0V VO=12.0V Load Regulation VO=3.3V VO=5.0V VO=12.0V Temperature Regulation (-40C to +85C) VO=3.3V VO=5.0V VO=12.0V Ripple and Noise (RMS) Ripple and Noise (pk-pk) Output Current VO=3.3V VO=5.0V VO=12.0V Current Limit Threshold VO=3.3V VO=5.0V VO=12.0V Short Circuit Surge Transient Turn on Time Overshoot at Turn On Output Capacitance VO=3.3V VO=5.0V VO=12.0V Transient Response 50% ~ 75% Max Load 50% ~ 25% Max Load 50% ~ 75% Max Load 50% ~ 25% Max Load 50% ~ 75% Max Load 50% ~ 25% Max Load Overshoot Settling Time Overshoot Settling Time Overshoot Settling Time Overshoot Settling Time Overshoot Settling Time Overshoot Settling Time Vo=12.0V Vo=5.0V Vo=3.3V 75mV 150uS 75mV 150uS 100mV 150uS 100mV 150uS 150mV 150mV 150mV 150mV 100mV 200uS 100mV 200uS 150mV 200uS 150mV 200uS 200mV 200mV 200mV 200mV Tested conditions: di/dt=0.1A/uS, Vin=48V, Ta=25C, with a 220uF/10V electrolytic capacitor at the output. 7.7A 5.5A 3A 0uF 0uF 0uF 0.5A2s 10mS 0% 12A 8A 4.2A 1A2s 25mS 5% 3300uF 2200uF 330uF 0A 0A 0A 7A 5A 2.5A 2mV 4mV 9mV 30mV 40mV 100mV 10mV 40mV 5mV 8mV 18mV 50mV 70mV 170mV 20mV 75mV Tested with 0-20MHz BW, with a 0.47uF ceramic capacitor at the output 1mV 2mV 5mV 3mV 5mV 10mV Min 3.234 V 4.900V 11.760V Typ 3.3 V 5.0 V 12.0V Max 3.366 V 5.100V 12.240V Notes Test condition: Vin=48V, IO=50% full load Note: All specifications are typical 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 ISOLATED DC/DC CONVERTERS 48V Input 3.3V/7A or 5V/5A or 12V/2.5A Output General Specifications Parameter Efficiency VO=3.3V VO=5.0V VO=12.0V Switching Frequency Output Trim Range I/O Isolation Voltage Isolation Capacitance Output Voltage Trim Range Over Temperature Protection Over Voltage Protection VO=3.3V VO=5.0V VO=12.0V MTBF Dimensions Inches (L x W x H) Millimeters (L x W x H) Weight 2.0 x 1.0 x 0.438 50.8 x 25.4 x 11.14 20g 3.9V 5.7V 13.6V 2,602,427 hours 5V 7V 14.2V Calculated Per Bell Core TR-332 (IO = IOmax; Ta = 25C) 85% 87% 87% 200kHz 90% VO 1500V 90% 88% 90% 90% 230kHz 1500pF 110C 260kHz 110% VO 110% Measured at Vin=48V, IO=Io, max Min Typ Max Notes Note: All specifications are typical at 25C unless otherwise stated. Control Specifications Parameter Remote On/Off Signal Low (Unit On) Signal High (Unit Off) Signal Low (Unit Off) Signal High (Unit On) Current Sink Active Low -0.3V 3.5V -0.3V 3.5V 0.3mA 0.8V 12V 0.8V 12V 0.75mA The remote On/Off pin open, Unit On. Min Typ Max Notes Active High Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 * Tel 201-432-0463 * Fax 201-432-9542 * www.belfuse.com ISOLATED DC/DC CONVERTERS 48V Input 3.3V/7A or 5V/5A or 12V/2.5A Output Output Trim Equations Equations for calculating the trim resistor (in k) given the desired adjusted voltage (Vadj) and the nominal output voltage of the converter (Vnom) are shown below. The Trim Down resistor should be connected between the Trim pin and Vout. The Trim Up resistor should be connected between the Trim pin and Ground. Only one of the resistors should be used for any given application. Vout Rtrimdown A = -B Vnom - Vadj Rtrimdown Module Trim GND Rtrimup = Vadj C -D - Vnom Vout Module Trim Rtrimup GND Vnom 12 5 3.3 A 53.320 19.300 21.711 B 9.260 15.120 40.610 C 14.025 6.350 13.032 D 3.650 10.000 30.100 Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 * Tel 201-432-0463 * Fax 201-432-9542 * www.belfuse.com ISOLATED DC/DC CONVERTERS 48V Input 3.3V/7A or 5V/5A or 12V/2.5A Output Efficiency Data 90% 85% EFFICIENCY EFFICIENCY 80% 75% 70% 65% 60% 55% 50% 0.7A 1.75A 3.5A 5.25A 7A OUTPUT CURRENT (A) 36V 48V 75V 95% 90% 85% 80% 75% 70% 65% 60% 55% 50% 0.5A 36 48 75 1.25A 2.5A 3.75A 5A OUTPUT CURRENT (A) 07LC-25T033 07LC-25T050 95% 90% 85% 80% 75% 70% 65% 60% 55% 50% 0.25A EFFICIENCY 36 48 75 0.625A 1.25A 1.875A 2.5A OUTPUT CURRENT (A) 07LC-25T120 Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 * Tel 201-432-0463 * Fax 201-432-9542 * www.belfuse.com ISOLATED DC/DC CONVERTERS 48V Input 3.3V/7A or 5V/5A or 12V/2.5A Output Thermal Derating Curves 07LC-25T033 07LC-25T050 07LC-25T120 Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 * Tel 201-432-0463 * Fax 201-432-9542 * www.belfuse.com ISOLATED DC/DC CONVERTERS 48V Input 3.3V/7A or 5V/5A or 12V/2.5A Output Pin Connections Pin 1 2 3 4 5 6 Function Vin+ VinRemote On/Off Vo+ VoTrim (c)2004 Bel Fuse Inc. Specifications subject to change without notice. 120704 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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