NCP3066S3BCKGEVB ON Semiconductor, NCP3066S3BCKGEVB Datasheet - Page 14
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NCP3066S3BCKGEVB
Manufacturer Part Number
NCP3066S3BCKGEVB
Description
EVAL BOARD FOR NCP3066S3BCKG
Manufacturer
ON Semiconductor
Specifications of NCP3066S3BCKGEVB
Design Resources
NCP3066 Buck EVB BOM NCP3066S3BCKGEVB Gerber Files NCPBUCK 3A EVB Schematic
Current - Output / Channel
3A
Outputs And Type
1, Non-Isolated
Voltage - Output
3.2V
Features
Brightness Control
Voltage - Input
12 ~ 35 V
Utilized Ic / Part
NCP3066
Silicon Manufacturer
On Semiconductor
Silicon Core Number
NCP3066
Kit Application Type
Power Management - Voltage Regulator
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With/related Products
NCP3066S3BCKG
Other names
NCP3066S3BCKGEVBOS
Table 4. TEST RESULTS
Line Regulation
Output Ripple
Efficiency
95
90
85
80
75
70
65
60
5
Figure 25. Boost LED Driver Efficiency
Figure 23. Boost Demoboard Layout
7
150 mA 6 LED
(19.2 V)
9
INPUT VOLTAGE (V)
11
150 mA 8 LED
(25.6 V)
13
3.50
2.50
1.50
0.50
Vin = 10 V to 20 V, Vout = 19.2 V, Iout = 350 mA
Vin = 10 V to 20 V, Vout = 19.2 V, Iout = 350 mA
Vin = 12 V, Vout = 19.2 V, Iout = 350 mA
3.0
2.0
1.0
0
0
15
10
Figure 26. Dimming Characteristic
20
17
http://onsemi.com
30
ON/OFF DUTY CYCLE (%)
19
40
14
50
illustrates the basic circuitry in boost topology, which allows
supplying string up to eight LEDs up to 150 mA
consumption. Table 3, Bill of Materials shows the small
number of additional parts which are necessary to assembly
mentioned demoboard. The demoboard based on one layer
PCB and the layout is shown in Figure 23, Buck Demoboard
Layout. The photo of this demoboard is mentioned in
Figure 24, Boost Demoboard Photo. Figure 26, Dimming
Characteristic shows behavior of circuitry in case the square
wave signal with 5 V amplitude and 300 Hz frequency was
delivered into ON/OFF pin of device. There was tested eight
LEDs string with 150 mA consumption and V
room temperature.
Figure 25. Efficiency of Boost LED Driver.
Figure 22, Boost Demoboard Application Schematic,
The efficiency of this demoboard is mentioned in
60
Figure 24. Boost Demonstration Photo
70
80
90
100
25 mA
55 mA
85%
IN
= 10 V at