VPOL5A-12-SMT

Manufacturer: CUI Inc
Number of Outputs: 1
Voltage - Output 2: -
Voltage - Output 3: -
Features: -
Mounting Type: Surface Mount
Operating Temperature: -40°C ~ 85°C
Packaging: Cut Tape (CT)Alternate Packaging
Type: Non-Isolated (POL)
Voltage - Isolation: -
Efficiency: 92%
Series: V-Infinity VPOL5A
Current - Output (Max): 5A
Package / Case: 5-DIP SMD Module
Size / Dimension: 0.80" L x 0.45" W x 0.24" H (20.3mm x 11.4mm x 6.1mm)
Voltage - Input (Max): 14V
Voltage - Input (Min): 8.3V
Voltage - Output 1: 0.75 ~ 5 V
Power (Watts) - Manufacture Series: 25W


Features:

· industry standard pin out
· high efficiency to 92%
· 300 KHz switching frequency
· 8.3-14 VDC wide input range
· 0.75-5.0 VDC wide output range
· over temperature protection
· continuous short circuit protection
· remote on/off
· cost-efficient open frame design
· UL/C-UL60950-1 (E222736) certified
· RoHS compliant




Application

· Layout Design Challenges.
· Convection Requirements for Cooling
· Thermal Considerations
· Power De-Rating Curves
· Efficiency vs Load Curves
· Input Capacitance at the Power Module
· Test Set-Up
· VPOL5A-12-SMT Output Voltage Adustment.
· Output Ripple and Noise Measurement
· Output Capacitance
· VPOL5A-12-SMT Reflow Profile




Specifications

PARAMETER	NOTES and CONDITIONS	Device	Min.	Typical	Max.	Units
Input Voltage Continuous	ALL		0		15	Vdc
Operating Temperature See Thermal Considerations Section	ALL		-40		+85
Storage Temperature		ALL	-55		+125

Description

Electrical Description
A block diagram of the VPOL5A-12-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-12-SMT series topology is based on a non-isolated synchronous buck converter. The control loop is optimized for unconditional stability, fast transient response and a very tight line and load regulation. In a typical pre-bias application the VPOL5A-12-SMT series converters do not draw any reverse current at start-up. The output voltage can be adjusted from 0.75 to 5.0vdc, using the TRIM pin with a external resistor. The converter can be shut down via a remote ON/OFF input that is referenced to ground. This input is compatible with popular logic devices; a 'positive' logic input is supplied as standard. Positive logic implies that the converter is enabled if the remote ON/OFF input is high (or floating), and disabled if it is low. The converter is also protected against over-temperature conditions.

Thermal Packaging and Physical Design.
The VPOL5A-12-SMT series uses a multi-layer FR4 PCB construction. All surface mount power components are placed on one side of the PCB, and all low-power control components are placed on the other side. Thus, the heat dissipation of the power components is optimized, ensuring that control components are not thermally stressed. The converter is an open-frame product and has no case or case pin. The open-frame design has several advantages over encapsulated closed devices. Among these advantages are:

Efficient Thermal Management: the heat is removed from the heat generating components without heating more sensitive, small signal control components.

Environmental: Lead free open-frame converters are more easily re-cycled.

Cost Efficient: No encapsulation. Cost efficient open-frame construction.

Reliable: Efficient cooling provided by open frame construction offers high reliability and easy diagnostics.

Parameters:

Technical/Catalog Information	VPOL5A-12-SMT
Vendor	CUI Inc (VA)
Category	Power Supplies
Voltage - Input	8.3 ~ 14VDC
Output	5V
Power (Watts)	25W
Number of Outputs	1
1st Output	5 VDC @ 5A
2nd Output	-
3rd Output	-
4th Output	-
Type	Non-Isolated
Mounting Type	Surface Mount
Packaging	Digi-Reel?
Package / Case	5-SMD
Drawing Number	*
Lead Free Status	Lead Free
RoHS Status	RoHS Compliant
Other Names	VPOL5A 12 SMT VPOL5A12SMT 102 1290 6 ND 10212906ND 102-1290-6