FAN5617 TinyWire
TM
Single-Wire Control Evaluation Kit
December 2006
FAN5617 High Efficiency, Constant-Current LED Driver with
Adaptive Charge Pump and TinyWire
TM
Single-Wire Control
Evaluation Kit
Features
3-Channel Parallel LED Driver with TinyWire
Brightness Control
TM
Digital
32 Static Brightness Levels with 5-Bit Internal DAC
Built-in Charge Pump with Three Modes of Operation:
1x (Linear), 1.5x and 2x
Up to 90% Efficiency
Low EMI, Low Ripple
2.7V to 5.5V Input Voltage Range
1MHz Operating Frequency
3x3mm 16-Lead MLP Package
Figure 1: FAN5617MPX Evaluation Board
Description
The
FAN5617 Evaluation Board
is a compact circuit
including the FAN5617 in a 3x3mm 16-pin MLP package.
LED brightness is controlled via a simple one-wire digital
interface. The evaluation board includes a USB interface
with mini-B receptacle for easy connection to a PC. A
"dashboard" program is provided on an installation CD to
TM
set the LED brightness using the TinyWire interface. The
FAN5617 evaluation board, a completely assembled and
tested surface mount board, provides easy probe access
points to all inputs and outputs so that electrical
characteristics and waveforms can be easily measured.
PC System Requirements
A PC or Laptop running Windows 2000 or Windows XP with
an available USB port connection. USB 2.0 is required for
the FAN5617 to run from USB-power. USB 1.1 may be
used with an external power supply to run the FAN5617
(see Power Options on next page).
Set-up and Installation Procedure
1.
Insert the CD-ROM. If the installation program does not
run automatically, run Setup.exe, which is in the root
directory of the CD-ROM.
If you choose to run the program after installation, and
before completing step #2 below, you will get an error
message.
Connect the USB cable between the eval board and
PC. Windows should then find the device and attempt
to install the driver.
Connect any external power supplies, if desired. The
FAN5617 eval board can be powered from the USB
cable if USB 2.0 is used.
Run the software: “FAN5617 TinyWire Control Panel"
Kit Contents
FAN5617 Evaluation Board
USB Type A to Mini-B Data Cable
Software Installation CD
3.
2.
4.
© 2006 Fairchild Semiconductor Corporation
FAN5617EVAL Rev. A.1 • 012/11/06
www.fairchildsemi.com
FAN5617 TinyWire
TM
Single-Wire Control Evaluation Kit
Power Options
To Power the FAN5617 from the USB bus:
Connect jumper J1 pins 1 and 2. This is the default configuration when the eval board is shipped.
To use External Power for the FAN5617:
Open jumper J1 pins 1 and 2. Connect power supply + (2.7 - 5.5V) to TP6 and power supply - to TP3.
Measurement Options
Test Point/Jumper
TP1: DATA
TP2: EN
Measurement
Monitor DATA or
Apply External DATA
Monitor ENABLE or
Apply External
ENABLE
GND
Output Voltage
Supply Current
Description
Monitor the DATA line via TP1. Or apply external DATA signal to TP1 and either remove
jumper J6 or check the "Tri-State Data" Box pictured in Figure 4 to over ride USB chip.
Monitor the EN line via TP2. Or apply external ENABLE signal to TP2.
TP3, TP7: GND
TP4: VOUT
TP6: VIN
J2 - J4
Output LED Current
Ground Test Point.
Apply volt-meter at TP4 to measure output voltage.
Apply ammeter between the external power supply V+ output and TP6 +. Remove
Jumper J6 to see only the FAN5617 supply current without including the current
consumed by the USB chip IO.
Apply ammeter to pins 1 and 2 of jumper J2, J3 or J4.
Figure 2: Test Point and Jumper Summary
C9
27pF
VCC
R4
470
X1
6Mhz
C10
27pF
VCC
C5
0.1uF
C6
4.7uF
C11
0.1uF
46
45
44
40
39
38
BDBUS2
48
47
43
42
41
37
BDBUS3
AVCC
EECS
AGND
XTOUT
XTIN
TEST
VCC
BDBUS0
1
R5
F1
FERRITE_BEAD
10K
2
3
4
5
CN1
CN-USB
1
2
3
4
5
R6
1.5K
C7
0.1uF
6
7
8
R1
27
9
10
11
12
PWREN#
BDBUS1
EESK
EEDATA
VCC
RESET#
RSTOUT#
3V3OUT
USBDP
USBDM
GND
SI/WUA
ACBUS3
ACBUS2
ADBUS7
ADBUS6
ADBUS5
ADBUS4
ADBUS3
ADBUS2
ADBUS1
ADBUS0
ACBUS1
ACBUS0
VCCIOA
GND
BDBUS4
BDBUS5
GND
BDBUS6
36
35
34
33
32
VBAT
31
30
29
28
27
26
25
R2
7.5K
J2
J3
J4
TP4
VOUT
C8
0.1uF
U2
FT2232C
BDBUS7
VCCIOB
BCBUS0
BCBUS1
BCBUS2
BCBUS3
SI/WUB
GND
R3
27
TP8
SCL
TP1
DATA
2
1
3
4
D1
D2
D3
13
14
15
16
17
18
19
20
21
22
23
VBAT
J6
Test
VCC
J1
USB Pwr
TP6
VIN
TP2
EN
R8
10K
D4
LED GREEN
R7
510
24
VBAT
NC
RSET
NC
16
15
14
13
L1
DATA
EN
GND
VIN
CAP1+
CAP2+
CAP2-
CAP1-
U1
FAN5617
L2
L3
PGND
VOUT
5
6
7
8
12
11
TP3
GND
TP5
PGND
C1
C2
0.1uF
0.1uF
Figure 3: FAN5617MPX Schematic
© 2006 Fairchild Semiconductor Corporation
FAN5617EVAL Rev. 0.A.1 • 12/11/06
2
10
C4
4.7uF
C3
1uF
9
www.fairchildsemi.com
FAN5617 TinyWire
TM
Single-Wire Control Evaluation Kit
Figure 4: FAN5617 TinyWire Control Panel
Software Functionality
(see datasheet for timing diagram)
Control Panel
Area
Control
Brightness
Send To IC
Send Automatically
Enable IC
Brightness Ramp
Tri-State Data
Sawtooth
Triangle
mS per Step
CurrentCode
Next T(BIT)
Next Clock
Pulse Ratio
Description
Range
Brightness slider to monitor brightness level or manually drag pointer to
0 - 31 brightness
desired level.
levels
Send EN and brightness level to IC.
When checked, sends a new brightness level whenever the brightness slider changes.
EN is high when checked.
Sends continual brightness commands in ramp, triangle or repeating single command patterns.
When checked, the DATA line from the USB interface is tri-stated, allowing external DATA to
be applied to TP1.
When selected, the brightness level will step from 0 to 31 repeatedly, returning to 0 after code
31 is transmitted.
When selected the brightness level will step from 0 to 31 to 0 repeatedly.
Sets Time Per brightness command Step. Time Per Step varies slightly
30 - 950 mS
due to USB latency, which also sets the minimum step time.
Repeatedly sends out the current brightness command.
Set the time of the next falling edge.
2499ns - 76 µS
Sets the next clock width of the shortest pulse.
833nS - 25 µS
Ratio of width of first bit to other bits.
2-5
Figure 5: Software Functionality
© 2006 Fairchild Semiconductor Corporation
FAN5617EVAL Rev. 0.A.1 • 12/11/06
3
www.fairchildsemi.com
FAN5617 TinyWire
TM
Single-Wire Control Evaluation Kit
Figure 6: FAN5617 PCB Layout
Description
Connector, USB, Type Mini-B
Ferrite Bead, MI0805K110R-10
IC, LED Driver, FAN5617
IC, USB Interface IC, FTDI2232C
Crystal, 6Mhz., Surface Mount
Capacitor 1uF, 10%, 10VDC, X7R, 0805
Qty
1
1
1
1
1
1
Ref
CN1
F1
U1
U2
X1
C3
Vendor
MOLEX
Steward
Fairchild
FTDI
Fox
Kemet
Panasonic
Murata
Panasonic
Panasonic
Taiyo Yuden
TDK
Digikey
Lumex
Everlight
AMP
Any
Any
Any
Any
Any
Any
AMP
Digikey
Part Number
67503-1020
MI0805K110R-10
FAN5617
FT2232C
FOXSDLF/060-20
C0805C105K8RACTU
ECJ-2YB1A105K
GRM21BR71A105K
ECJ-1VB1C104K
ECJ-2FBOJ475M
JMK212BJ475MG
C2012X5R0J475M
PCC270ACVCT-ND
SML-LX2832UWC-TR
QTLP630C-3
103239-2
Capacitor 0.1uF, 10%, 16VDC, X7R, 0603
Capacitor 4.7uF, 20%, 6.3VDC, X5R, 0805
6
2
C1, C2, C5, C7, C8,
C11
C4, C6
Capacitor 27pF, 10%, 50VDC, NPO, 0603
LED Ultra White; 3.5V(typ); 120mW
LED Mount Standard Bright 0805 Yellow,QTLP630C-3
Connector Male, .025" Square contact post, 2
Resistor 27 Ohm, 5%, 1206
Resistor 7.5 K, 1%, 0603
Resistor 510 Ohm, 1%, 0805
Resistor 470 Ohm, 1%, 0805
Resistor 10 K, 1%, 0805
Resistor 1.5 K, 5%, 0805
Connector Male, .025" Square contact post, 1
Shunt
2
3
1
5
2
1
1
1
2
1
5
5
C9, C10
D1, D2, D3
D4
J1 - J4, J6
R1, R3
R2
R7
R4
R5, R8
R6
TP1 - TP4, TP6
J1 – J4, J6
103239-1
A26227-ND
Figure 7: FAN5617 Bill Of Materials
© 2006 Fairchild Semiconductor Corporation
FAN5617EVAL Rev. 0.A.1 • 12/11/06
4
www.fairchildsemi.com
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