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VPOL5A-5-SMT Datasheet(PDF) 6 Page - CUI INC |
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VPOL5A-5-SMT Datasheet(HTML) 6 Page - CUI INC |
6 / 11 page rev. page date DESCRIPTION: point of load converter 6of 11 09/2010 20050 SW 112th Ave. Tualatin, Oregon 97062 phone 503.612.2300 www.cui.com fax 503.612.2383 PART NUMBER: VPOL5A-5-SMT Figure 3. Positive Remote On/Off Input Drive Circuit Q1 ON/OFF Control +Vin Remote ON/OFF Common Common +Vo VPOL5A-5-SMT Figure 4. Negative Remote On/Off Input Drive Circuit 5.7 UVLO (Under-Voltage Lockout) The voltage on the Vcc pin determines the start of the operation of the Converter. When the input Vcc rises and exceeds about 2.0V the converter initiates a soft start. The UVLO function in the converter has a hysteresis (about 100mV) built in to provide noise immunity at start-up. 6. Safety 6.1 Input Fusing and Safety Considerations. Agency Approvals: The power Supply shall be submitted to and receive formal approval from the following test agencies. 1.The power supply shall be approved by a nationally recognized testing laboratory to UL/CSA 60950 3 rd Edition (North America) and EN60950 (International) 2. CB Certificate from an internationally recognized test house in accordance with EN 60950. The VPOL5A-5-SMT series converters do not have an internal fuse. However, to achieve maximum safety and system protection, always use an input line fuse. The safety agencies require a time-delay fuse with a maximum rating of 10A. 7. Applications 7.1 Layout Design Challenges. In optimizing thermal design the PCB is utilized as a heat sink. Also some heat is transferred from the SMT module to the main board through connecting pins. The system designer or the end user must ensure that other components and metal in the vicinity of the VPOL5A-5-SMT series meet the spacing requirements to which the system is approved. Low resistance and low inductance PCB layout traces are the norm and should be used where possible. Due consideration must also be given to proper low impedance tracks between power module, input and output grounds. The recommended SMT footprint as shown as figure 5. PAD SIZE MIN : 0.120" x 0.095 " MAX : 0.135" x 0.110 " Dimensions are in Inches ( millimetes ) Recommended Pad Layout 0.340 0.180 0.160 0.160 0.190 0.350 0.690 0.05 VOUT TRIM GND VIN ON/OFF (4.57) (4.06) (4.06) (4.83) 0.06 (1.5) (1.3) (17.53) (8.89) 0.010 (0.25) (8.64) Figure 5. Recommended SMT Footprint (Top View) Q1 VPOL5A-5-SMT ON/OFF Control +Vin +Vo Remote ON/OFF Common Common |
Similar Part No. - VPOL5A-5-SMT_10 |
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Similar Description - VPOL5A-5-SMT_10 |
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