ISOLATED DC/DC CONVERTERS 48V Input 3.3V/7A or 5V/5A or 12V/2.5A Output 07LC-25T Series • Compact Through-hole Package • Remote On/Off • Excellent Thermal Performance • Output Voltage Trim • 1500V Isolation • Input Under Voltage Lockout • High Efficiency • Over Voltage Protection • High Power Density • SCP/OCP • Wide Input Voltage • 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 -40°C -55°C Typ - Max 80V 12V 85°C 125°C 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 Min 36V - Typ 25mA 3mA Max 75V 40mA 1.1A 10mA - 10mA 20mA - 40mA - 0.0012A s 0.0024A2s Turn-on Input Voltage 31V 34V 36V Turn-off Input Voltage 30V 33V 35V 60mA 2 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 25°C 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 Min Typ Max VO=3.3V VO=5.0V VO=12.0V 3.234 V 4.900V 11.760V 3.3 V 5.0 V 12.0V 3.366 V 5.100V 12.240V VO=3.3V VO=5.0V VO=12.0V - 1mV 2mV 5mV 3mV 5mV 10mV VO=3.3V VO=5.0V VO=12.0V Temperature Regulation (-40°C to +85°C) VO=3.3V VO=5.0V VO=12.0V - 2mV 4mV 9mV 5mV 8mV 18mV - 30mV 40mV 100mV 50mV 70mV 170mV Ripple and Noise (RMS) - 10mV 20mV Ripple and Noise (pk-pk) - 40mV 75mV VO=3.3V VO=5.0V VO=12.0V 0A 0A 0A - 7A 5A 2.5A VO=3.3V VO=5.0V VO=12.0V 7.7A 5.5A 3A - 0.5A2s 12A 8A 4.2A 1A2s Turn on Time - 10mS 25mS Overshoot at Turn On Output Capacitance - 0% 5% 0uF 0uF 0uF - 3300uF 2200uF 330uF - 75mV 100mV - 150uS 200uS - 75mV 100mV Notes Test condition: Vin=48V, IO=50% full load Line Regulation Load Regulation Tested with 0-20MHz BW, with a 0.47uF ceramic capacitor at the output Output Current Current Limit Threshold Short Circuit Surge Transient 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 Overshoot Settling Time Overshoot Vo=3.3V Settling Time - 150uS 200uS Overshoot - 100mV 150mV Settling Time Overshoot Vo=5.0V - 150uS 200uS - 100mV 150mV Settling Time - 150uS 200uS Overshoot - 150mV 200mV - 150mV 200mV - 150mV 200mV - 150mV 200mV 50% ~ 75% Max Load Settling Time 50% ~ 25% Max Load Settling Time Overshoot Vo=12.0V Tested conditions: di/dt=0.1A/uS, Vin=48V, Ta=25°C, with a 220uF/10V electrolytic capacitor at the output. Note: All specifications are typical at 25°C 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 Min Typ Max Notes 85% 87% 87% 88% 90% 90% - Switching Frequency 200kHz 230kHz 260kHz Output Trim Range 90% VO - 110% VO I/O Isolation Voltage 1500V - - Isolation Capacitance - 1500pF - 90% - 110% - 110°C - 3.9V 5.7V 13.6V - 5V 7V 14.2V Efficiency VO=3.3V VO=5.0V VO=12.0V Output Voltage Trim Range Over Temperature Protection Measured at Vin=48V, IO=Io, max Over Voltage Protection VO=3.3V VO=5.0V VO=12.0V MTBF Calculated Per Bell Core TR-332 (IO = IOmax; Ta = 25°C) 2,602,427 hours Dimensions Inches (L × W × H) Millimeters (L × W × H) Weight 2.0 x 1.0 x 0.438 50.8 x 25.4 x 11.14 - 20g - Note: All specifications are typical at 25°C unless otherwise stated. Control Specifications Parameter Min Typ Max -0.3V - 0.8V 3.5V - 12V -0.3V - 0.8V 3.5V - 12V 0.3mA - 0.75mA Notes Remote On/Off Signal Low (Unit On) Signal High (Unit Off) Signal Low (Unit Off) Signal High (Unit On) Current Sink Active Low Active High The remote On/Off pin open, Unit On. 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 kΩ) 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 Rtrimup = Rtrimdown A = −B Vnom − Vadj Vadj Module Trim GND Vout C −D − Vnom Module Trim Rtrimup GND Vnom A B C D 12 53.320 9.260 14.025 3.650 5 19.300 15.120 6.350 10.000 3.3 21.711 40.610 13.032 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% 75% 36V 70% 48V 65% 75V EFFICIENCY 80% 60% 55% 50% 0.7A 1.75A 3.5A 5.25A 7A 95% 90% 85% 80% 75% 70% 65% 60% 55% 50% 0.5A 36 48 75 1.25A 2.5A 3.75A OUTPUT CURRENT (A) OUTPUT CURRENT (A) 07LC-25T033 07LC-25T050 EFFICIENCY EFFICIENCY 85% 95% 90% 85% 80% 75% 70% 65% 60% 55% 50% 0.25A 5A 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 Function 1 Vin+ 2 Vin- 3 Remote On/Off 4 Vo+ 5 Vo- 6 Trim ©2004 Bel Fuse Inc. Specifications subject to change without notice. 120704 CORPORATE FAR EAST EUROPE Bel Fuse Inc. 206 Van Vorst Street Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com 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 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