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RGB color control board based on STP04CM05
Data Brief
Format:
(94 kb)
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(6 kb)
Last Updated: 28/01/2008
Pages: 4
Untitled Document
Generic Part Number
Orderable Part Number
Status
L4973
L4973D5.1
Active
L4973D3.3-013TR
Active
L4973V3.3
Active
L4973D3.3
Active
L4973D5.1-013TR
Active
L4973V5.1
Active
STEVAL-ILL009V1
STEVAL-ILL009V1
NRND
STEVAL-ILL009V3
STEVAL-ILL009V3
Active
STEVAL-ILL009V4
STEVAL-ILL009V4
Active
Related Application Notes
APPLICATION IDEAS: DRIVING LEDs USING L497x, L597x, L692x DC-DC CONVERTERS FAMILIES
Current sharing of the L4973 in a multiphase application
DESIGNING WITH L4973, 3.5A HIGH EFFICIENCY DC-DC CONVERTER
Generating multicolor light using RGB LEDs
Related Datasheets
3.5A step down switching regulator
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STEVAL-ILL009V1
RGB color control board based on STP04CM05
Data Brief
Features
Different LEDs as a load can be used 3 A at 4 V DC/DC converter using L4973D3 for user-friendly input (8 - 30 V) Red, green, blue individual tuning 64 levels of brightness for each LED with software color control LED temperature limit set by software SW start up implemented (200 ms) STEVAL-ILL009V1
Description
This board was designed to drive super highbrightness multicolor RGB LEDs with current up to 700 mA per LED. The LED brightness and color are very easily changed by potentiometers, and an automatic color-change mode continuously modulates the color of the LED to generate multicolor light. A LED over-temperature protection is designed on this board, so the power delivered to the LED can be automatically limited to prevent LED overheating. The STEVAL-ILL009V1 is a motherboard assembled without LEDs. To evaluate light effect features, it is necessary to order a load board. Two load boards are available for easy performance evaluation. The first with a OSTAR projection module has ordering code STEVALILL009V3, and the second with Golden Dragon LEDs has ordering code STEVAL-ILL009V4
November 2007
Rev 1
1/4
www.st.com 4
For further information contact your local STMicroelectronics sales office.
1
10 8 6 4 2
9 7 5 3 1
IO5
L78L05ACD
8 V IN GND GND GND GND INHIB V O UT
1
R1 R1 G1a G1a G1b G1b B1 B1 R2 R2 G2a G2a G2b G2b B2 B2 NC NC GND GND NC Vo NC Vcc NC NC Vd Vd Vd Vd
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
2
3
6
7
5
R8 20k
8 9
20
Vcc Vcc
SYNC
COMP
INH
GND GND GND GND GND GND GND GND
12
11
D9 SMAJ33A-TR +
4 5 6 7 14 15 16 17
2/4
VCC C2 100nF VCC C5 100nF IO1 IO2 IO4 IO3 VCC VCC C3 100nF C4 100nF C1 10nF
S1
Board schematic
Figure 1.
Switch
VCC R1 3k
P1 10K 220 STP04CM596 Vd STP08CL596 220 STP04CM596 ST7FLITE09
Brightness
R2 R3
1 2 3 4 5 6 7 8 V ss PA0 Vdd PA1 RE S E T P A 2 A IN0 NC S CK NC A IN2ICCDA TA MO S I ICCCL K CL K IN PA7 G ND G ND S DI CL K /L E O UT0 O UT1 NC Vdd R_ ext S DO /O E NC O UT3 O UT2 NC G ND G ND S DI CL K /L E O UT0 O UT1 NC Vdd R_ ext S DO /O E NC O UT3 O UT2 NC G ND Vdd S DI R-E X T CL K S DO /L E /O E O UT0 O UT7 O UT1 O UT6 O UT2 O UT5 O UT3 O UT4
16 15 14 13 12 11 10 9
1 2 3 4 5 6 7 8
16 15 14 13 12 11 10 9
1 2 3 4 5 6 7 8
16 15 14 13 12 11 10 9
1 2 3 4 5 6 7 8
16 15 14 13 12 11 10 9
VCC
Color
R4
P2 10K
PROTECTION
4K7 VCC R5 10K
Schematic
D11 BAT46 D12 BAT46 D13 BAT46
S2 C6 10nF
LED0 LED1 LED2 LED3 LED4 LED5 LED6
Board schematic
D14 BAT46 D15 BAT46 D16 BAT46 D17 BAT46
ICC
SW ITCH
CONNECTOR1
VCC VCC R6 470 C7 100nF
D18 BAT46
CON VCC
CONNECTOR2
R7
C8 100nF C10 33uF/35V
390 D8 Green LED
INFORMATION SIGNALS LED0 - RED LED CONTROL LED1 - GREEN LED CONTROL LED2 - BLUE LED CONTROL LED3 - MANUAL COLOR CONTROL LED4 - AUTOMATIC COLOR CONTROL LED5 - OVER TEMPERATURE LED6 - WHITE COLOR
C9 100nF
INPUT VOLTAGE FROM 8V UP TO 30V
IO6 L4973D3.3
Vd
J1 CON3
1 OSC SS V 3 .3 19 18
C12 100nF
V FB BOOT O UT O UT
13
C11 C21
10
100nF 2 3 100nF
1 2 3
COILCRAFT DMT2-149-3.8L
L1 150uF
R9 1k3
C13 470uF/35V
C16 2,7nF C17 100nF C20 22nF C18 C19 100nF 220pF R10 9k1
C14 4700uF/10V
+
C15 100nF
D10 STPS5L60
STEVAL-ILL009V1
R11 6k2
STEVAL-ILL009V1
Revision history
2
Revision history
Table 1.
Date 20-Nov-2007
Document revision history
Revision 1 Initial release Changes
3/4
STEVAL-ILL009V1
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Document Number: 14187
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