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| NON-ISOLATED DC/DC CONVERTER 4.5V-32V Input 1.2V-3.3V/1A Output x7AH-01H1A0 * * * Non-Isolated output Trim function Low profile package (7.82mm) * * * Remote On/Off OCP/SCP Under-voltage lockout (UVLO) Description The Bel x7AH-01H1A0 is part of the low cost non-isolated DC/DC converter series. The modules use a SMD or vertical mount package for ease of layout and space savings. The output is widely trimmed from 1.2V to 3.3V. Typical features include remote on/off, input under voltage lockout, over current protection and short circuit protection. Part Selection Output Voltage 1.2V - 3.3V Input Voltage 4.5 - 32V Max. Output Current 1A Max. Output Power 3.3W Typical Efficiency 86% Part Number Surface Mount S7AH-01H1A0 Part Number Vertical Mount V7AH-01H1A0 Note: Add "0" suffix at the end of the model number to indicate "Tube Packaging", and "R" for "Reel Packaging", and "G" for "Tray Packaging". Absolute Maximum Ratings Parameter Input Voltage (continuous) Output Enable Terminal Voltage Ambient Temperature Storage Temperature Min -0.3V -0.3V -40C -40C Typ Max 34V 12V 85C 125C Notes Input Specifications Parameter Input Voltage Input Current (no load) Input Current (full load) VO=3.3V VO=2.5V VO=1.8V VO=1.5V VO=1.2V Remote Off Input Current Input Reflected Ripple Current (pk-pk) Input Reflected Ripple Current (RMS) 2 I t Inrush Current Transient Turn on Voltage Threshold Turn off Voltage Threshold Min 4.5V Typ 20V 5mA 2mA 300mA 100mA 0.02A s 4.1V 3.3V 2 Max 32V 8mA 0.20A 0.16A 0.12A 0.11A 0.09A 5mA 420mA 160mA 0.1A s 4.5V 4.0V 2 Notes Tested with simulated source impedance of 500nH, 5Hz to 20MHz and one 100uF/50V electrolytic capacitor and a 3.3uF/50V ceramic capacitor at the input 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 NON-ISOLATED DC/DC CONVERTER 4.5V-32V Input 1.2V-3.3V/1A Output Output Specifications Parameter Output Voltage Set Point VO=3.3V VO=2.5V VO=1.8V VO=1.5V VO=1.2V Line Regulation VO=3.3V VO=2.5V VO=1.8V VO=1.5V VO=1.2V Load Regulation VO=3.3V VO=2.5V VO=1.8V VO=1.5V VO=1.2V Regulation Over Temperature (-40C to +85C) Output Current Current Limit Threshold Short Circuit Surge Transient Ripple and Noise (RMS) Ripple and Noise (pk-pk) Turn on Time Overshoot at Turn on Output Capacitance Transient Response Overshoot 50% ~ 100% Max Load Settling Time Overshoot 100% ~ 50% Max Load Settling Time Overshoot 50% ~ 100% Max Load Settling Time Overshoot 100% ~ 50% Max Load Settling Time Overshoot 50% ~ 100% Max Load Settling Time Overshoot 100% ~ 50% Max Load Settling Time Overshoot 50% ~ 100% Max Load Settling Time Overshoot 100% ~ 50% Max Load Settling Time Overshoot 50% ~ 100% Max Load Settling Time Overshoot 100% ~ 50% Max Load Settling Time 0A 2A 0uF Min 3.234V 2.450V 1.764V 1.470V 1.176V Typ 3.3V 2.5V 1.8V 1.5V 1.2V 3mV 2mV 2mV 1mV 1mV 3mV 2mV 2mV 1mV 1mV 10mV 0.02A s 6mV 60mV 6mS 2% 80mV 150uS 80mV 150uS 70mV 120uS 70mV 120uS 60mV 100uS 60mV 100uS 60mV 100uS 60mV 100uS 60mV 100uS 60mV 100uS 2 Max 3.366V 2.550V 1.836V 1.530V 1.224V 6mV 5mV 4mV 3mV 2mV 6mV 5mV 4mV 3mV 2mV 20mV 1A 3A 0.1A s 10mV 100mV 30mS 5% 400uF 120mV 200uS 120mV 200uS 110mV 160uS 110mV 160uS 100mV 130uS 100mV 130uS 100mV 130uS 100mV 130uS 100mV 130uS 100mV 130uS 2 Notes Test conditions: Vin=20V, Io=50% full load Test condition: 0-20MHz BW VO=3.3V VO=2.5V VO=1.8V Test conditions: di/dt = 0.5A/uS; Vin = 20V VO=1.5V VO=1.2V Note: All specifications are typical at 20V input, 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 CONVERTER 4.5V-32V Input 1.2V-3.3V/1A Output General Specifications Parameter Efficiency VO=3.3V VO=2.5V VO=1.8V VO=1.5V VO=1.2V Switching Frequency VO=3.3V VO=2.5V VO=1.8V VO=1.5V VO=1.2V Output Trim Range MTBF Dimensions (surface mount) Inches (L x W Millimeters (L x W Dimensions (vertical) Inches (L x W Millimeters (L x W Weight x H) x H) x H) x H) 270KHz 190KHz 150KHz 130KHz 100KHz 1.2V 290KHz 220KHz 170KHz 150KHz 120KHz 8,040,000 hours 0.78 x 0.70 x 0.32 19.81 x 17.78 x 8.13 0.70 x 0.308 x 0.65 17.78 x 7.82 x 16.51 5.1g 310KHz 250KHz 190KHz 170KHz 140KHz 3.3V Vo=1.2V when trim pin open. Calculated Per Bell Core TR-332 (IO =0.8A, Vin=20V; Ta = 25C) 83% 80% 76% 73% 70% 86% 83% 79% 76% 73% Measured at Vin=20V, full load. Min Typ Max Notes Note: All specifications are typical at 20V input, full load at 25C unless otherwise stated. Control Specifications Parameter Remote On/Off Signal Low (Unit On) Signal High (Unit Off) Min -0.3V 2.8V Typ Max 1V 12V Notes Remote on/off pin open, unit on. 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 (Vo) 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 = 8.7 - 21.5 Vo - Vadj Rtrimdown Module Trim GND RTrimUp = 17.2 Vadj - Vo Vout Module Trim Rtrimup GND Note: Output voltage Vo=1.205V 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 CONVERTER 4.5V-32V Input 1.2V-3.3V/1A Output Efficiency Data 95.0% 90.0% 85.0% 80.0% 75.0% 70.0% 65.0% 60.0% 55.0% 50.0% 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 4.5V 20V 32V 95.0% 90.0% 85.0% 80.0% 75.0% 70.0% 65.0% 60.0% 55.0% 50.0% 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 4.5V 20V 32V Vo = 3.3V 95.0% 90.0% 85.0% 80.0% 75.0% 70.0% 65.0% 60.0% 55.0% 50.0% 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 95.0% 90.0% 85.0% 80.0% 75.0% 70.0% 65.0% 60.0% 55.0% 50.0% 0.1 0.2 0.3 Vo = 2.5V 4.5V 20V 32V 4.5V 20V 32V 0.4 0.5 0.6 0.7 0.8 0.9 1.0 Vo = 1.8V 95.0% 90.0% 85.0% 80.0% 75.0% 70.0% 65.0% 60.0% 55.0% 50.0% 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 Vo = 1.5V 4.5V 20V 32V Vo = 1.2V 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 CONVERTER 4.5V-32V Input 1.2V-3.3V/1A Output Thermal Derating Curve Test Condition: Derating curve is tested at nominal input voltage. 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 CONVERTER 4.5V-32V Input 1.2V-3.3V/1A Output bel Pin Connections Pin 1 2 3 4 5 6 7 Function Remote On/Off (option) Vin Ground Vout Trim (option) N/A N/A bel Pin Connections Pin Function Remote On/Off (option) Vin Ground Vout Trim (option) bel 1 2 3 4 5 2004 Bel Fuse Inc. Specifications subject to change without notice. 112504 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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