VPOL5A-5-SMT CUI Inc, VPOL5A-5-SMT Datasheet

Page 1

... Thermal Considerations 7.4 Power De-Rating Curves 7.5 Efficiency vs Load Curves 7.6 Input Capacitance at the Power Module 7.7 Test Set-Up 7.8 VPOL5A-5-SMT Series Output Voltage Adustment. 7.9 Output Ripple and Noise Measurement 7.10 Output Capacitance 7.11 SMT Reflow Profile 8. MECHANICAL OUTLINE DIAGRAMS 8 ...

Page 2

... Monotonic Startup with pre-bias at the output. UL/IEC/EN60950 Certified. 3. General Description 3.1 Electrical Description A block diagram of the VPOL5A-5-SMT Series converter is shown in Figure 1. Extremely high efficiency power conversion is achieved through the use of synchronous rectification and drive techniques. Essentially, the powerful VPOL5A-5-SMT series topology is based on a non-isolated synchronous buck converter ...

Page 3

... PART NUMBER: VPOL5A-5-SMT 4. Technical Specifications (All specifications are typical at nominal input, full load at 25 PARAMETER ABSOLUTE MAXIMUM RATINGS Input Voltage Continuous Operating Temp erature See Thermal Considerations Section Storage Temperature INPUT CHARACTERISTICS Operating Input Voltage Input Under-Voltage Lockout Turn-On Voltage Threshold ...

Page 4

... PART NUMBER: VPOL5A-5-SMT PARAMETER DYNAMIC CHARACTERISTICS Output Voltage Transient Response Error Brand Setting Time (within 1% Vout nominal) EFFICIENCY 100% Load ISOLATION CHARACTERISTICS Input to Output FEATURE CHARACTERISTICS Switching Frequency On/Off Control, Positive Logic Remote On/Off Logic Low (Module Off) Logic High (Module On) ...

Page 5

... The remote on/off input feature of the converter allows external circuitry to turn the converter ON or OFF. Active-high remote on/off is available as standard. The VPOL5A-5-SMT series converters are turned on if the remote on/off pin is high, or left open or floating. Setting the pin low will turn the converter ‘Off’. The signal level of the remote on/off input is defined with respect to ground. If not using the remote on/off pin, leave the pin open (module will be on). The part number suffix “ ...

Page 6

... Edition (North America) and EN60950 (International 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. ...

Page 7

... PART NUMBER: VPOL5A-5-SMT TYPICAL POWER DERATING FOR 5Vin 3.3Vout 6.0 5.0 4.0 0LFM 3.0 100LFM 2.0 200LFM 1.0 0 Ambient Temperature( C) Figure 3. Typical Power De-rating for 5V IN 3.3Vout NOTE: 1. specific input & output derating curves available, please contact V-Infinity for detail th 20050 SW 112 Ave ...

Page 8

... PART NUMBER: VPOL5A-5-SMT 7.5 Efficiency vs Load Curves VPOL5A-5-SMT 100% 95% 90% 85% 80% 75% 70% 0 0.5 1 1.5 2 Current Load (A) VPOL5A-5-SMT 100% 95% 90% 85% 80% 75% 70% 0 0.5 1 1.5 2 Current Load (A) VPOL5A-5-SMT 100% 95% 90% 85% 80% 75% 70% 0 0.5 1 1.5 2 Current Load (A) th 20050 SW 112 Ave. Tualatin, Oregon 97062 DESCRIPTION: point of load converter Vo=3 ...

Page 9

... When testing the V-Infinity’s VPOL5A-5-SMT series under any transient conditions please ensure that the transient response of the source is sufficient to power the equipment under test. We can calculate the Efficiency Load regulation and line regulation ...

Page 10

... PART NUMBER: VPOL5A-5-SMT 7.8 VPOL5A-5-SMT Series Output Voltage Adustment. The output Voltage of the VPOL5A-5-SMTS33A can be adjusted in the range 0.75V to 3.63V by connecting a single resistor on the motherboard (shown as Rtrim) in Figure 12. When Trim resistor is not connected the output voltage defaults to 0.75V +Vin +Vo Trim VPOL5A-5-SMT ...

Page 11

... Surface Mount Contact 5 Places (1.57) 0.090 0.05 (2.29) Dimensions are in Inches (millimeters) Toleranc es :x.xx ± 0.02in.( x.x ± 0.5mm) , unless otherwise noted x.xxx ± 0.010in. ( x.xx ± 0.25mm) Figure 15 VPOL5A-5-SMT Mechanical Outline Diagram Pin Function 1 +Vo 2 Trim 3 Common 4 Vin ...