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User manual
Getting started with X-NUCLEO-LED61A1 DC-DC LED driver expansion board for STM32 Nucleo
Introduction
The X-NUCLEO-LED61A1 is an expansion board designed to provide sample compact LED driver applications using the LED6001.
X-NUCLEO-LED61A1 can be configured to operate LEDs through a boost converter or SEPIC converter and comes with a photo-transistor for ambient light sensing. The X-NUCLEO-LED61A1 is compatible with the ST morpho connector and supports the addition of other boards which can be stacked onto a single STM32 Nucleo board. The user can also mount the Arduino™ UNO R3 connector.
It is designed to provide sample solutions for several applications involving single LED strings (e.g., offgrid street lighting, advertisement boards, signs, gaming etc.)
December 2015 DocID028744 Rev 1 1/17 www.st.com
Getting started
Figure 1: X-NUCLEO-LED61A1 expansion board based on LED6001 for STM32 Nucleo
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Contents
Contents
1 Getting started ................................................................................. 6
1.1
1.2
System setup .................................................................................... 6
System requirements ........................................................................ 6
2 Hardware description ...................................................................... 8
2.1
2.2
2.3
2.4
Hardware settings ............................................................................. 8
Fault management ............................................................................ 8
Connector description ....................................................................... 8
Jumper descriptions .......................................................................... 9
3 Board schematics and bill of materials ....................................... 10
3.1
3.2
3.3
Bill of materials ................................................................................ 10
Schematic ....................................................................................... 13
Layout ............................................................................................. 14
4 Revision history ............................................................................ 16
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List of tables
List of tables
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Table 1: Boost vs SEPIC configuration....................................................................................................... 8
Table 2: Standalone vs STM32 Nucleo operation ...................................................................................... 8
Table 3: X-NUCLEO connector (Arduino) connector table ......................................................................... 8
Table 4: Input and output connector table .................................................................................................. 9
Table 5: Input and output connector table .................................................................................................. 9
Table 6: X-NUCLEO-LED61A1 bill of materials (1 of 2) ........................................................................... 10
Table 7: X-NUCLEO-LED61A1 bill of materials (2 of 2) ........................................................................... 11
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List of figures
List of figures
Figure 1: X-NUCLEO-LED61A1 expansion board based on LED6001 for STM32 Nucleo ....................... 2
Figure 2: X-NUCLEO-LED61A1 expansion board plugged on a STM32 Nucleo board ............................ 6
Figure 3: X-NUCLEO-LED61A1 circuit schematic (1 of 3) ....................................................................... 13
Figure 4: X-NUCLEO-LED61A1 circuit schematic (2 of 3) ....................................................................... 13
Figure 5: X-NUCLEO-LED61A1 circuit schematic (3 of 3) ....................................................................... 14
Figure 6: X-NUCLEO-LED61A1 top side layout ....................................................................................... 14
Figure 7: X-NUCLEO-LED61A1 bottom side layout ................................................................................. 15
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Getting started
1
1.1
Getting started
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This section describes the hardware and software requirements for the X-NUCLEO-
LED61A1 expansion board for STM32 Nucleo.
System setup
The X-NUCLEO-LED61A1 is an expansion board for use with STM32 Nucleo boards. It can operate as a stand-alone board or it can be mounted on STM32 Nucleo (to run example solution demo) as shown in figure 2.
Figure 2: X-NUCLEO-LED61A1 expansion board plugged on a STM32 Nucleo board
1.2
6/17
The connection between STM32 Nucleo and X-NUCLEO-LED61A1 is designed for use with any STM32 Nucleo or Arduino UNO R3 Platform.
When mounting X-NUCLEO-LED61A1 on the STM32 Nucleo:
ensure that all are pins aligned with their corresponding connector.
handle both boards carefully to avoid damaging or bending the male/female connectors and pins.
System requirements
Using the X-NUCLEO-LED61A1 board requires following software and hardware:
External power supply 8 V – 24 V, 2A, to be connected using CN1
External series LED load (ILED > 350 mA). No. of LEDs may vary from 5 to 10 depending on the mode (boost or SEPIC) and input voltage, to be connected using
CN2
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Windows® (XP, Vista, 7, 8) PC on which to install the software
USB type A to Mini-B USB cable to connect the STM32 Nucleo to the PC for installation of the board firmware package (order code: X-CUBE-LED1). A utility running on the user's PC will complete the demo.
The user’s PC must have the following minimum characteristics:
At least 128 MB of RAM
40 MB of available hard disk space for the X-CUBE-LED1 firmware package and relative documentation, available on www.st.com
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Hardware description
2
2.1
2.2
2.3
Hardware description
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X-NUCLEO-LED61A1 is a compact LED driver using the LED6001, and can operate over a wide DC input voltage range from 8 V to 24 V and 2 A external power supply. The board has a single channel and provides 350 mA constant current with configurable boost or
SEPIC topologies.
The brightness of the LED string connected to its output can be controlled through an external PWM signal (0 % to 100 % dimming). The X-NUCLEO-LED61A1 is equipped with a photo sensor for ambient light sensing, which can also be used to control LED brightness
(analog dimming).
Hardware settings
The X-NUCLEO-LED61A1 board can be configured to boost and SEPIC modes with onboard jumpers to switch between the two.
Table 1: Boost vs SEPIC configuration
Boost
Jumper
SEPIC
Pin1 Pin2 Pin3 Pin1 Pin2 Pin3
JP1
JP2 yes yes yes yes no no no no yes yes yes yes
Jumper
JP3
JP4
JP5
Table 2: Standalone vs STM32 Nucleo operation
Standalone Nucleo
Pin1 Pin2 Pin3 Pin1 Pin2 no no yes yes yes yes yes yes no no yes no yes yes yes
Pin3 yes no yes
Fault management
X-NUCLEO-LED61A1 can detect fault conditions such as open LED, feedback disconnection, LED over-current and output-to-ground short circuit (SEPIC only) and protects the board from damage.
Connector description
The default pin assignment for X-NUCLEO-LED61A1 (Arduino) connectors are shown below:
Connector
Table 3: X-NUCLEO connector (Arduino) connector table
Pin Signal
CN5 2 GND
CN6
4
6
7
3.3V
GND
GND
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2.4
Connector
CN8
CN9
Pin
4
5
6
7
Signal
ADC_PS
XFAULT
ADIM_TIMER
PDIM_TIMER
Hardware description
Connector
CN1 (IN)
CN2 (OUT)
CN3 (OUT)
Pin
Table 4: Input and output connector table
Signal
1 GND
2
1
2
1
2
Vin
LED_A
LED_K
GND
NTC
Jumper descriptions
The following table shows the various jumper connections for X-NUCLEO-LED61A1.
Jumper
Table 5: Input and output connector table
Pin Signal
1 Boost
JP1
JP2
JP3
JP4
JP5
1
2
3
1
2
3
1
2
2
3
3
2
3
1
Common
SEPIC
Boost
Common
SEPIC
ADIM
Photo sensor
ADC_PS
ADIM_TIMER
ADIM
NTC
VIN
PWMI
PDIM_TIMER
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Board schematics and bill of materials
3
3.1
Board schematics and bill of materials
This section contains the bill of materials schematic and layout of the X-NUCLEO-
LED61A1.
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Bill of materials
Item Qty
Table 6: X-NUCLEO-LED61A1 bill of materials (1 of 2)
Reference Part / Value
Voltage /
Watt /
Ampere
Type / tech information
8
9
10
11
12
13
14
6
7
4
5
1
2
3
15
16
17
18
19
20
21
22
23
24
25
26
27
28
2 CN1,CN2
1 CN3
1 CN5
2 CN6,CN9
2 CN7,CN10
1 CN8
4 C1,C2,C3,C5
2 C4,C6
1 C7
1 C9
2 C10,C14
1 C8
3 C12,C11,C13
1 D1
2 D2,D4
1 D3
1 D5
1 D6
1 D7
5 JP1,JP2,JP3,JP4,JP5
1 L1
1 Q1
1 Q2
1 Q3
1 R1
1 R2
1 R3
1 R4
BAS70K
BZT52C4V3
LED_RED
ESDAULC5
SMM4F
SIL3
22uH in parallel
STL8N10LF3
STL3N10F7
SFH3710
220k
6.8k
1.5R
2R
CON2
CON2
CON10
CON8
DNM
CON6
10u
1u
2.2u
1u
100n
100p
2.2u
STPS2L60
50V
25V
16V
16V
50V
16V
2A,60V
10A
50V
70mA,70V
4.3V
5mA,2V
140W
2.4kW
4A
7.8A,100V
4A,100V
1/16W
1/16W
0.25W
0.25W
Phototransistor thick film thick film thick film thick film
Tol.
Ceramic X7R ±10%
Ceramic X7R ±10%
Ceramic X5R ±10%
Ceramic X7R ±10%
Ceramic X7R ±10%
C0G,NP0 ±10%
Ceramic X5R ±10%
Zener
ESD
±20%
±1%
±1%
±1%
±1%
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Item Qty
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
1 R5
1 R6
1 R7
1 R8
1 R9
Reference
1 R10
1 R11
1 R12
2 R13,R19
1 R14
2 R15,R18
1 R16
1 R17
4 R20,R22,R23,R28
3 R21,R24,R29
Board schematics and bill of materials
Part / Value
Voltage /
Watt /
Ampere
Type / tech information
Tol.
2.2R 1/10W thick film ±5%
0.1R
1.5k
5.6R
82k
330R
22k
510k
1M
680R
100k
1k
100R
0R
DNM
1/16W
1/16W
1/16W
1/10W
1/8W
0.5W
1/16W
1/16W
1/10W
1/16W
1/16W
1/16W
47
48
1 R25
1 R26
1 R27
7
TP1,TP2,TP3,TP4,TP5,T
P6,TP7
1 U1
1k_DNM
1k
10k
LED6001
1/16W
Item Package
Table 7: X-NUCLEO-LED61A1 bill of materials (2 of 2)
Manufacturer
Manuf. order code / Orderable
Part No.
1 Through Hole
2 Through Hole
3 Through Hole
TE Connectivity
FCI
SAMTEC
282836-2
77311-118-02LF
SSQ-110-03-F-S thick film thick film thick film thick film thick film thick film thick film thick film thick film thick film thick film thick film thick film
±1%
±1%
±5%
±5%
±5%
±5%
±5%
±5%
Additional
Notes or equivalent or equivalent
±5%
±5%
±5%
±5%
±5%
4 Through Hole
5 Through Hole
6 Through Hole
7 SMD 1210
8 SMD 0805
9 SMD 0603
10 SMD 0603
11 SMD 0402
12 SMD 0402
SAMTEC
SAMTEC
SAMTEC
Murata
Murata
Murata
Murata
SSQ-108-03-F-S
SSQ-119-04-L-D
SSQ-106-03-G-S
GRM32ER71H106KA12L
GRM21BR71H105KA12L
GRM188R61E225ME84D
GRM188R71C105KE15D
Murata GRM155R71C104KA88D
TDK Corporation C1005C0G1H101K050BA or equivalent or equivalent or equivalent or equivalent or equivalent or equivalent
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Board schematics and bill of materials
Item Package
13 SMD 0402
14 SMA
15 SOD-523
16 SOD-123
17 SMD 0603
Manufacturer
TDK Corporation C1005X5R1C225K050BC
ST STPS2L60A
ST BAS70KFILM
Diodes
Incorporated
Lite on
Manuf. order code / Orderable
Part No.
BZT52C4V3-7-F
MSD1278-223
ESDAULC5-1BF4
SMM4F33A-TR
68000-103HLF
18 ST0201
19 Stmite Flat
20 Through Hole
21
SMD (coupled inductor)
22 PowerFlat 5x6
ST
ST
FCI
BOURNS
ST
23 PowerFlat 2x2 ST
24 SMD-Diode 0805 OSRAM
25 SMD 0402
26 SMD 0402
Stackpole
Stackpole
27 SMD 1206
28 SMD 1206
29 SMD 0603
30 SMD 2010
31 SMD 0402
32 SMD 0402
33 SMD 0402
Stackpole
ROHM
Panasonics
ROHM
ROHM
Yageo
Panasonics
34 SMD 0402
35 SMD 0402
36 SMD 0402
37 SMD 0402
38 SMD 0402
39 SMD 0402
40 SMD 0402
Stackpole
Panasonic
Stackpole
Stackpole
StackPole yageo panasonics
41 SMD 0805
42
SMD 0805-Nucleo
CON
Stackpole
43
44
SMD 0805-Nucleo
CON
SMD 0805-Nucleo
CON
SRF1280A-220M
STL8N10LF3
STL3N10F7
SFH 3710-3/4-Z
RMCF0402FT220K
RMCF0402FT6K80
RMCF1206FT1R50
MCR18ERTFL2R00
ERJ-3GEYJ2R2V
MCR25JZHFLR100
MCR01MRTF1501
RC0402JR-075R6L
ERJ-2GEJ823X
RMCF0402JT330R
ERJ-2GEJ223X
RMCF0402JT510K
RMCF0402JT1M00
RMCF0402JT680R
RC0402JR-07100KL
ERJ-2GEJ102X
RMCF0805JT100R
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Additional
Notes or equivalent or equivalent or equivalent or equivalent or equivalent or equivalent or equivalent or equivalent or equivalent or equivalent or equivalent or equivalent or equivalent or equivalent or equivalent or equivalent or equivalent or equivalent or equivalent or equivalent or equivalent or equivalent
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3.2
Item Package Manufacturer
45
SMD 0805-Nucleo
CON
46 SMD 0402
47 Through Hole
48 HTSSOP16 yageo
Keystone
ST
Board schematics and bill of materials
Manuf. order code / Orderable
Part No.
Additional
Notes
RC0402FR-0710KP
5002
LED6001TR or equivalent or equivalent
Schematic
Figure 3: X-NUCLEO-LED61A1 circuit schematic (1 of 3)
Figure 4: X-NUCLEO-LED61A1 circuit schematic (2 of 3)
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Board schematics and bill of materials
Figure 5: X-NUCLEO-LED61A1 circuit schematic (3 of 3)
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3.3 Layout
Figure 6: X-NUCLEO-LED61A1 top side layout
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Figure 7: X-NUCLEO-LED61A1 bottom side layout
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Revision history
4 Revision history
Date
10-Dec-2015
Revision
1
Changes
Initial release
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