NCP5010EVB ON Semiconductor, NCP5010EVB Datasheet

Power Management Modules & Development Tools EVAL BRD FOR NCP5010FCT1G

NCP5010EVB

Manufacturer Part Number
NCP5010EVB
Description
Power Management Modules & Development Tools EVAL BRD FOR NCP5010FCT1G
Manufacturer
ON Semiconductor
Datasheet

Specifications of NCP5010EVB

For Use With/related Products
NCP5010
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
NCP5010EVB/D
NCP5010 White LED Driver
and DC/DC Boost Converter
Evaluation Board
Prepared by: Hubert Grandry
ON Semiconductor
Overview
boost converter optimized for driving series configurations
of LEDs in applications where space is a premium such as
digital handsets and other portable electronics.
operation of the device for laboratory characterization.
There are 2 demo boards offered, the NCP5010EVB which
configures the device driving a string of 2−5 White LEDs in
series. In this configuration the NCP5010 is operated in a
current
showcases the device in a more traditional voltage feedback
boost configuration for applications such as powering an
OLED panel or LCD biasing. In addition to these demo
boards, Application Note ANDXXXX/D deals with
© Semiconductor Components Industries, LLC, 2006
May, 2006 − Rev. 1
The NCP5010 is a highly integrated 1 MHz inductive
The intent of the demo boards is to illustrate typical
regulation
VPOWER
J5
J1
J3
Semi PWM
1
2
3
mode.
1
2
V
4.7 mF 6.3 V
CC
0603 X5R
TP3
Figure 1. Schematic Diagram for Demo Board NCP5010EVB
The
CTRL
C1
NCP5010
A2
A3
NCP5010BIASEVB
CTRL
NC
V
CC
VOUT
1
2
L1
22 mH
TDK VLF4012−220
U2
C1
TP2
SW
C2
1.0 mF, 25 V
0805 X5R
1
configuring the NCP5010 with a high side sense resistor to
drive LEDs in serial or parallel eliminating the need for a
low side sense trace in the LCD module assembly.
Demo Board NCP5010EVB (White LED Driver)
configuration where the feedback voltage node is connected
to cathode of the last LED in the string and a sense resistor
which is used to set the LED current. The sense resistor R1
or R2 + R3 are selected by J6 jumper. The NCP5010 step−up
DC/DC converter controls the loop in order to maintain
500 mV at the feedback pin. Equation 1 is used to determine
the value of the sense resistor for a specific current:
V
TP1
Figure 1 is the schematic of the White LED Driver
OUT
R1
24
EVALUATION BOARD MANUAL
J6
D1
D2
D3
D4
D5
R FB +
R2
10
R3
100
http://onsemi.com
HEADER 4X2
8
6
4
2
I OUT
F BV
Publication Order Number:
J4
7
5
3
1
NCP5010EVB/D
(eq. 1)

Related parts for NCP5010EVB

NCP5010EVB Summary of contents

Page 1

... The intent of the demo boards is to illustrate typical operation of the device for laboratory characterization. There are 2 demo boards offered, the NCP5010EVB which configures the device driving a string of 2−5 White LEDs in series. In this configuration the NCP5010 is operated in a ...

Page 2

... Current Selection: This jumper allows to select two different output current: Shorting jumper between J6−1 and J6−2 give a fixed output current determining by R1. Shorting jumper between J6−2 and J6−3 R3 allow adjusting the output current via potentiometer R3. NCP5010EVB/D Switch Descriptions Switch Descriptions http://onsemi.com ...

Page 3

... IOUT (mA) Figure 2. Efficiency vs. Current @ 2 LEDS ( IOUT (mA) Figure 4. Efficiency vs. Current @ 4 LEDS ( Figure 6. Ch1 SW, 5 V/div DC, Ch2 Vout, 5 V/div DC, Ch3 Vfb 100 mV/div DC, Ch4 Inductor Current 50 mA/div DC 200 ns/div NCP5010EVB 4 100 Figure 3. Efficiency vs. Current @ 3 LEDS (10 100 Figure 5. Efficiency vs. Current @ 5 LEDS (17 http://onsemi.com ...

Page 4

... PCB LAYOUT NCP5010EVB/D Figure 7. Assembly Layer Figure 8. Top Layer Routing http://onsemi.com 4 ...

Page 5

... L1 Resistor, chip Resistor, chip Adjustable Resistor, 100 TP1,TP2, Test point TP3 1 PCB PCB 2 2 1.0 mm, 4 Layer NCP5010EVB/D Size Manufacturer 8−Pin ON Semiconductor 1.7x1.7 mm Flip−Chip 0603 TDK 0805 TDK 1.2 x 2.2 mm OSRAM Weidmuller 0.200 x 4 Kontek Comatel Radiall 0.100 x 3 Std 3 ...

Page 6

... V CC TP4 Figure 9. Schematic Diagram for Demo Board NCP5010BIASEVB NCP5010EVB Then choose a standard value that is close to the above−calculated value. R2 should be 2 and R4 lower than 1 MW. The NCP5010 has built in short circuit protection so when . OUT the converter is started by a high logic signal on the CTRL pin a small current source (10 mA nominal) charges the (eq ...

Page 7

... To enable the boost converter connect a shorting jumper between J4−1 and J4−2 J3 Voltage Selection: This jumper allows to select two different output voltage: Shorting jumper between J6−2 and J6−3 give a fixed output voltage setup by R2/R4. Shorting jumper between J6−1 and J6−2 R3 allow adjusting the output voltage. NCP5010EVB/D Switch Descriptions Switch Descriptions http://onsemi.com 7 ...

Page 8

... IOUT (mA) Figure 12. Efficiency vs mH, VLF 4012−100 V OUT 4 3 IOUT (mA) Figure 14. Efficiency vs mH, VLF 4012−100 V OUT NCP5010EVB/D Figure 11. Efficiency vs. I OUT = 6 mH, VLF 4012−220 V OUT 3 100 Figure 13. Efficiency vs. I OUT = mH, VLF 4012−220 V OUT 3 100 1 Figure 15. Efficiency vs. I OUT = mH, VLF 4012− ...

Page 9

... TYPICAL OPERATING CHARACTERISTICS Figure 16. Load Transient Response 2V/div DC, 3 IOUT, 10mA/div DC ms/div OUT Figure 18. Line Transient Rejection 5V/div DC, 3 VOUT, 50mV/div AC ms/div OUT NCP5010EVB/D 100 10 1 0.10 0. Figure 17. Output Switching Noise V OUT = VLF 4012−220 V OUT 3 http://onsemi.com 9 100 ...

Page 10

... PCB LAYOUT NCP5010EVB/D Figure 19. Assembly Layer Figure 20. Top Layer Routing http://onsemi.com 10 ...

Page 11

... C1608X5R0J475MT GRM21BR61E475KA or C2012X5R1C475MT SL5.08/2/90B + BLZ 5.08/2 4711955140470 Std VLF4012AT−220MR51 Std Std 3224W −1− 504 − Std TLS−P−002−B−0304−HG ON Semiconductor Website: www.onsemi.com Order Literature: http://www.onsemi.com/orderlit For additional information, please contact your local Sales Representative NCP5010EVB/D ...

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