202321A.pdf

EVALUATION BOARD DATA SHEET
EV187
Evaluation Board for the AAT2469/2499 Sixteen-Channel
TVLite White LED Driver Solutionwith LED Current and Timing Control
Introduction
The AAT2469/AAT2499 evaluation board is a hardware platform to evaluate the functions of the AAT2469 and AAT2499
devices. The AAT2469 is a dedicated TVLiteTM control IC for the AAT2499 TVLiteTM LED driver, which is a highly integrated two channel LED driver.
The AAT2469 and AAT2499 operate over a common 4.5V to 5.5V range. The LED input voltage range, VLED, is determined by the highest VF (LED Forward Voltage) multiplied by the number of LEDs in a given string. The maximum VLED
is limited to the AAT2499 BVDSS spec of 150V. The maximum VLED must be less than 150V to avoid damage to the
AAT2499s on the demo board. The AAT2499 CSFBI input and CSFBO output provide a necessary feedback route when
cascading multiple AAT2499s to provide a single voltage mode feedback for the AAT2469. The AAT2469 ICSFB provides
a current mode feedback for a third party system power supply.
Each current sink in the AAT2499 is programmable via the serial shift interface. The serial shift interface is controlled
by the AAT2469. An AAT2469 can control up to 8 AAT2499s, or a total of 16 current sinks. The AAT2469 captures the
current sink data via the SPI interface. Then the data is converted and is sent out to the AAT2499s via the serial shift
interface. The speed of the serial shift interface is the same as the GSLCK frequency applied to the AAT2469.
Full scale LED current is programmed using an external resistor on the AAT2499 RSET pin. The LED current can be
scaled linearly from minimum to maximum setting current with the VREF input voltage. The AAT2469 supplies this VREF
voltage that is controlled by the DOT correction register in the AAT2469 with 8-bit resolution. Both phase delay and
grayscale clock (GS Clock) PWM on-time are user programmable with 12-bit resolution for each current sink bank.
Timing and synchronization are determined by externally applied VSYNC and GSCLK signals.
The AAT2469 is available in a standard SOP16 package. The AAT2499 is available in a standard SOP16 or SOP16-EP
package. More details on the AAT2469 and AAT2499 can be found in the product datasheets. This document will cover
the board schematic, layout guidelines and setup of a few key configuration registers to demonstrate the AAT2469 and
AAT2499 driving LED strings with different brightness levels. The document includes scope shots to show the corresponding relationships between related waveforms.
Evaluation Board Picture
Figure 1: AAT2469/AAT2499 Evaluation Board Picture.
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
202321A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • August 31, 2012
1
EVALUATION BOARD DATA SHEET
EV187
Evaluation Board for the AAT2469/2499 Sixteen-Channel
TVLite White LED Driver Solutionwith LED Current and Timing Control
Board Schematic
AATI USB Module
1
ADDR
CSB_uC
9
0
10
GND
0
C20
Cap
DNP
C21
Cap
DNP
11
12
P3.4
GND
P3.3
GSCLK
P3.2
VSYNC
P3.1
P1.3
P3.0
GND
13
AAT2469
GND
GND
CSB
9
0
R18
P3.5
SCL
P2.7
10
GSCLK
SDA
P2.6
ADDR
R13
C9
Cap
0.1uF
8
36
35
34
5V
33
32
31
30
29
28
27
26
25
24
CSB
VSYNC
C11
Cap
DNP
VREF
11
7
R17
P2.5
SDI
12
6
VSYNC
23
8
GND
VIN
P3.6
21
7
VREF
SCLK
SO_8
13
CSB
22
SDI
VSYNC
SC
14
5
P2.2
6
VIN
CSB_uC
P2.4
5
SCLK
SI
SO
GSCLK
P2.3
SC
ICSFB
15
P3.7
20
GND
SCLK_uC R11
0
SDI_uC
R12
0
4
GSCLK
SDI
P2.1
C23
DNP
3
EN
CSFBI
4
19
C22
2.2uF
ICSFB
SI_2469
SDO
SDI_uC
5V
P2.0
10k
2
EN
3V
SDO
18
Diode 1N4148
D2
CSFBO_8
16
GND
SCLK
P1.5
R23
DNP
GND
R21
1
GND
17
0
SDO
3
P1.4
C24
DNP
R10
2
SDO_uC
16
SDO_uC
SCLK_uC
GND
DNP
U9
15
DNP
D3
14
TP30
FB-I
R22
USB Module
3
4
VIN
5
CSFBO_1
6
7
CS15
8
SI
VSYNC
VREF
GSCLK
RSET
VIN
AGND
CSFBO
CSFBI
SGND
SGND
LED_A
LED_B
FLT
15
SI_2469
14
VREF
13
RSET1
6.04k
12
11
R1
C12
Cap
DNP
C4
Cap
0.1uF
CSFBI
10
9
CS16
GND
GND
SC
1
SO_4
2
VSYNC
3
GSCLK
4
VIN
5
CSFBO_4
6
7
CS9
8
SC
FLT
SO
SI
VSYNC
VREF
GSCLK
RSET
VIN
AGND
CSFBO
CSFBI
SGND
SGND
LED_A
LED_B
0
GND
SO
16
16
FLT
15
SO_3
14
VREF
13
RSET4
SO_7
C15
Cap
DNP
R4
6.04k
12
11
SC
C7
Cap
0.1uF
CSFBO_3
10
9
CS10
GND
2
VSYNC
3
GSCLK
4
VIN
5
CSFBO_7
6
7
CS3
GND
1
8
SC
AAT2499
AAT2499
GND
FLT
SO
SI
VSYNC
VREF
GSCLK
RSET
VIN
AGND
CSFBO
CSFBI
SGND
SGND
LED_A
LED_B
EP
2
GSCLK
FLT
16
FLT
15
SO_6
14
VREF
13
RSET7
6.04k
12
11
R7
C18
Cap
DNP
CSFBO_6
10
9
TP1
CS1
GND
TP3
CS3
AAT2499
GND
GND
TP4
CS4
TP5
CS5
GSCLK
4
VIN
5
CSFBO_2
6
7
CS13
8
VSYNC
VREF
GSCLK
RSET
VIN
AGND
CSFBO
CSFBI
SGND
SGND
LED_A
LED_B
16
FLT
SC
1
15
SO_1
SO_5
2
14
VREF
VSYNC
3
13
RSET2
GSCLK
4
VIN
5
CSFBO_5
6
11
R2
6.04k
12
C13
Cap
DNP
C5
Cap
0.1uF
CSFBO_1
10
9
CS14
GND
GND
7
CS7
8
U8
SC
FLT
SO
SI
VSYNC
VREF
GSCLK
RSET
VIN
AGND
CSFBO
CSFBI
SGND
SGND
LED_A
LED_B
0
GND
SI
16
FLT
SC
1
15
SO_4
SO_8
2
14
VREF
VSYNC
3
13
RSET5
GSCLK
4
VIN
5
CSFBO_8
6
11
C16
Cap
DNP
R5
6.04k
12
C8
Cap
0.1uF
CSFBO_4
10
9
CS8
GND
GND
7
CS1
8
SC
FLT
SO
SI
VSYNC
VREF
GSCLK
RSET
VIN
AGND
CSFBO
CSFBI
SGND
SGND
LED_A
LED_B
AAT2499
AAT2499
GND
EP
3
FLT
SO
TP6
CS6
16
FLT
TP7
CS7
15
SO_7
14
VREF
13
RSET8
11
R8
6.04k
12
C19
Cap
DNP
10
9
CS2
TP8
CS8
TP9
CS9
CSFBO_7
GND
TP10
CS10
TP11
CS11
0
VSYNC
U5
SC
0
2
EP
C2
Cap
0.1uF
1
SO_2
EP
U2
SC
AAT2499
GND
GND
TP12
CS12
TP13
CS13
3
GSCLK
4
VIN
5
CSFBO_3
6
7
CS11
8
SO
SI
VSYNC
VREF
GSCLK
RSET
VIN
AGND
CSFBO
CSFBI
SGND
SGND
LED_A
LED_B
16
FLT
SC
1
15
SO_2
SO_6
2
14
VREF
VSYNC
3
13
RSET3
GSCLK
4
VIN
5
CSFBO_6
6
11
R3
6.04k
12
C14
Cap
DNP
C6
Cap
0.1uF
CSFBO_2
10
9
CS12
GND
GND
7
CS5
8
SC
FLT
SO
SI
VSYNC
VREF
GSCLK
RSET
VIN
AGND
CSFBO
CSFBI
SGND
SGND
LED_A
LED_B
16
FLT
15
SO_5
14
VREF
13
RSET6
11
TP15
CS15
C17
Cap
DNP
R6
6.04k
12
TP16
CS16
TP18
VIN
CS1
TP19
CSFBO
CS2
TP20
ICSFB
CS3
TP21
VREF
CS4
TP22
SDI
CS5
TP23
SCLK
CS6
TP24
CSB
CS7
TP25
SDO
CS8
TP26
SC
CS9
TP27
SO_2469
CS10
TP28
SI_2469
CS11
TP29
FLT
CS12
TP31
VSYNC
CS13
TP32
GSCLK
CS14
TP33
SO_1
CS15
CSFBO_5
CS6
GND
1
3
5
7
9
CSB_uC
SDI_uC
2
4
6
8
10
SDO_uC GND
SCLK_uC
Header 5X2
TP17
VLED
VIN
SDI
VIN
DNP
JP1
1
3
ADDR
GND
2
4
AAT2499
GND
VIN
EN
CSFBO_8
JP2
1
2
ENABLE
CSFBI
VIN
ICSFB
JP3
1
2
CSFBI to VIN
VREF
5V
VIN
JP4
1
2
USB 5V to VIN
SDI
SCLK
CSB
SCLK
SDO
R36
SC
DNP
SDI
SC
R35
SI_2469
DNP
R36 and R35 are for AAT2499 tes
t setup.
SI_2469
SO_8
FLT
R14
D1
2k
Red LED
VIN
VSYNC
GSCLK
SO_1
TP37
GND
TP38
GND
TP39
GND
TP34
GND
GND
GND
AAT2499
GND
GND
Figure 2: AAT2469/AAT2499 Evaluation Board Schematic.
Printed Circuit Board Specification
Symbol
VIN
VLED
fVSYNC
fGSCLK
fSCLK
TA
TJ
Parameter
Input Voltage Range
VLED Voltage Range
VSYNC Frequency
GSCLK Frequency
SPI Clock Frequency
Ambient Temperature Range
Operating Junction Temperature Range
Min
4.5
55
1024 VSYNC
-40
-40
Typ
Max
5.5
150
1000
4M
15
85
150
Table 1: AAT2469/AAT2499 Evaluation Board Specifications.
2
C25
DNP
ADDR
C10
TP36
GND
CS16
10
9
P2
GND
CS2
CS4
CS6
CS8
CS10
CS12
CS14
CS16
VLED
2
4
6
8
10
12
14
16
18
20
0
2
FLT
0
GND
SO_3
VSYNC
TP14
CS14
U6
SC
EP
C3
Cap
0.1uF
1
EP
U3
SC
1
3
5
7
9
11
13
15
17
19
Header 10X2
TP2
CS2
CS4
0
SO_1
VSYNC
SC
GND
CS1
CS3
CS5
CS7
CS9
CS11
CS13
CS15
VLED
U7
0
1
EP
C1
Cap
0.1uF
SC
U4
EP
U1
P1
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
202321A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • August 31, 2012
Units
V
Hz
MHz
°C
TP35
GND
EVALUATION BOARD DATA SHEET
EV187
Evaluation Board for the AAT2469/2499 Sixteen-Channel
TVLite White LED Driver Solutionwith LED Current and Timing Control
Figure 3: Connection between the LED and the Evaluation Board through a Ribbon Cable.
Getting Started
Setup
1. Connect an input power source (to supply voltage between 4.5V and 5.5V) between VIN and the ground. The VIN
can be powered by the 5V from the USB port when using the Skyworks USB Module. Simply connect JP4 jumper
to use the 5V from the USB port to power VIN.
2. If using the Skyworks USB Module, connect the USB Module to the USB Module connector on the AAT2469/AAT2499
demo board. Otherwise, connect frequency generators to apply between 55Hz to 1kHz to VSYNC and the appropriate frequency to GSCLK whose leading edge is synchronized to VSYNC. Apply a frequency with a minimum of 4096
VSYNC frequency to GSCLK. Refer to the AAT2469 and AAT2499 product datasheet to determine the correct GSCLK
frequency for the application operating condition. Connect SPI interface on P2.
3. Apply VLED. If VLED is in closed-loop operation and is applied from a third party SMPS converter, connect the FB-I
with current mode to the feedback input of the third party SMPS converter. Calculate resistor R3 value for desired
VLED level. If using an Skyworks boost converter, connect the CSFBO to the feedback input of the Skyworks boost
converter.
4. Set ADDR jumper to desired address setting for the AAT2469.
5. Connect JP1 jumper to ON to enable the AAT2469.
6. Connect LED strings to P1 using information provided in Table 2.
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
202321A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • August 31, 2012
3
EVALUATION BOARD DATA SHEET
EV187
Evaluation Board for the AAT2469/2499 Sixteen-Channel
TVLite White LED Driver Solutionwith LED Current and Timing Control
Pin
1
2
3
4
5
6
7
8
9
10
Description
GND
GND
Current
Current
Current
Current
Current
Current
Current
Current
Sink
Sink
Sink
Sink
Sink
Sink
Sink
Sink
1
2
3
4
5
6
7
8
Pin
11
12
13
14
15
16
17
18
19
20
Description
Current
Current
Current
Current
Current
Current
Current
Current
VLED
VLED
Sink
Sink
Sink
Sink
Sink
Sink
Sink
Sink
9
10
11
12
13
14
15
16
Table 2: P1 LED Pinout Configuration.
Functional Test and Evaluation
RSET and DOT Register
The RSET resistors, R1 to R8, on the AAT2499s are 6.04kΩ, and set the maximum full scale LED current to 101.72mA.
The AAT2469 provides a VREF output, which is controlled by the DOT register with 256 linear steps between current sink
being off and the maximum full scale LED current, to adjust the luminance of the LEDs.
Figure 4 shows the LED current and VREF at the full scale setting with DOT register setting as 0xFF. Figure 5 shows the
LED current and VREF at the half scale setting with DOT register setting as 0x80.
Figure 4: LED Current with DOT = 0xFF, VREF = 3.6V.
4
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
202321A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • August 31, 2012
EVALUATION BOARD DATA SHEET
EV187
Evaluation Board for the AAT2469/2499 Sixteen-Channel
TVLite White LED Driver Solutionwith LED Current and Timing Control
GS Registers
The GS registers control the PWM duty cycle of the LED current sinks for adjusting the brightness. Figure 6 shows a
LED string running at 50% duty cycle with GS register setting as 0x800. Figure 7 shows a LED string running at 25%
duty with GS register setting as 0x400. Figure 8 shows a LED string running at 75% duty cycle with GS register setting
as 0xC00.
Figure 5: LED Current with DOT = 0x80, VREF = 1.8V.
Figure 6: PWM at 50% Duty Cycle with GS = 0x80.
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
202321A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • August 31, 2012
5
EVALUATION BOARD DATA SHEET
EV187
Evaluation Board for the AAT2469/2499 Sixteen-Channel
TVLite White LED Driver Solutionwith LED Current and Timing Control
Figure 7: PWM at 25% Duty Cycle with GS = 0x400.
Figure 8: PWM at 25% Duty Cycle with GS = 0xC00.
6
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
202321A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • August 31, 2012
EVALUATION BOARD DATA SHEET
EV187
Evaluation Board for the AAT2469/2499 Sixteen-Channel
TVLite White LED Driver Solutionwith LED Current and Timing Control
DLY Registers
The DLY registers set the phase shift from the rising edge of VSYNC to when the current sink PWM cycle begins for each
LED current sink. Figure 9 shows a phase shift of 0° with DLY register setting as 0x000. Figure 10 shows a phase shift
of 90° with DLY register sets to 0x400. Figure 11 shows a phase shift of 180° with DLY register setting as 0x800. Figure
12 shows a phase shift of 270° with DLY register setting as 0xC00. Figure 13 shows a phase shift of 360° with DLY
register setting as 0xFFF. One advantage of using delay is that it allows each current sink to start at different time to
reduce the stress on a system power supply. The other advantage is that it can provide a fixed off time in scanning
mode when the delay is used in combination with the INVERT function.
Figure 9: 0° Phase Shift with DLY = 0x000.
Figure 10: 90° Phase Shift with DLY = 0x400.
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
202321A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • August 31, 2012
7
EVALUATION BOARD DATA SHEET
EV187
Evaluation Board for the AAT2469/2499 Sixteen-Channel
TVLite White LED Driver Solutionwith LED Current and Timing Control
Figure 11: 180° phase shift with DLY = 0x800.
Figure 12: 270° phase shift with DLY = 0xC00.
Figure 13: 360° phase shift with DLY = 0xFFF.
8
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
202321A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • August 31, 2012
EVALUATION BOARD DATA SHEET
EV187
Evaluation Board for the AAT2469/2499 Sixteen-Channel
TVLite White LED Driver Solutionwith LED Current and Timing Control
INVERT Function
The INVERT function allows the PWM signal to be inverted. With the INVERT function enabled, a 25% duty cycle (GS
= 0x400) will be a 75% duty cycle output, and a 90° delay turn on time (DLY = 0x400) will be a turn on time at 90°.
The INVERT function can provide a fixed off time in scanning mode. Figure 14 and 15 show two PWM waveforms with
INVERT function disabled and sharing a same turn on time with different duty cycle. Figure 16 and 17 show two PWM
waveforms with the same settings as Figure 14 and 15 with INVERT function enabled.
Figure 14: Non-Inverted 20% Duty Cycle with 45° Phase Shift Turn On Time (GS = 0x333, DLY = 0x200,
INVERT = 0).
Figure 15: Non-Inverted 80% Duty Cycle with 45° Phase Shift Turn On Time (GS = 0xCCC, DLY = 0x200,
INVERT = 0).
Figure 16: Inverted 20% Duty Cycle with 45° Phase Shift Turn Off Time (GS = 0x333, DLY = 0x200,
INVERT = 1).
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
202321A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • August 31, 2012
9
EVALUATION BOARD DATA SHEET
EV187
Evaluation Board for the AAT2469/2499 Sixteen-Channel
TVLite White LED Driver Solutionwith LED Current and Timing Control
Figure 17: Inverted 80% Duty Cycle with 45° Phase Shift Turn Off Time (GS = 0xCCC, DLY = 0x200,
INVERT = 1).
Open and Short Fault Detection
The AAT2499 provides the open and short fault detection functions to detect any LED that is opened or shorted. The
fault status is indicated by the FLT pin and Fault Status registers. The AAT2499 has a programmable open and short
fault blanking time. The blanking time can be programmed to 2, 4, 8, or 16 VSYNC cycles to prevent any false fault
detection.
The AAT2499 has an open fault clear bit and a short fault clear bit. By setting the fault clear bit, the fault status is
removed and any further fault will not be detected until the bit is reset back to 0.
Figure 18, 19, 20, and 21 show the 2, 4, 8, and 16 VSYNC blanking time settings in short fault detection.
Figure 18: Short Fault with the 2 VSYNC Blanking Time.
10
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
202321A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • August 31, 2012
EVALUATION BOARD DATA SHEET
EV187
Evaluation Board for the AAT2469/2499 Sixteen-Channel
TVLite White LED Driver Solutionwith LED Current and Timing Control
Figure 19: Short Fault with the 4 VSYNC Blanking Time.
Figure 20: Open Fault with the 8 VSYNC Blanking Time.
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
202321A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • August 31, 2012
11
EVALUATION BOARD DATA SHEET
EV187
Evaluation Board for the AAT2469/2499 Sixteen-Channel
TVLite White LED Driver Solutionwith LED Current and Timing Control
Figure 21: Open Fault with the 16 VSYNC Blanking Time.
Serial Shift Interface
The AAT2469 collects the registers setting via SPI interface, and converts and sends the settings to the AAT2499s via
the serial shift interface. When CSB pin is pulled high, the Start bit is set in CTRL3 register of AAT2469, then the
AAT2469 would send data out to the serial shift interface.
Figure 22 shows the serial shift interface data transmission after the Start bit is set in the AAT2469.
Figure 22: Serial Shift Interface Data Transmission after Start Bit is set in the AAT2469.
12
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
202321A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • August 31, 2012
EVALUATION BOARD DATA SHEET
EV187
Evaluation Board for the AAT2469/2499 Sixteen-Channel
TVLite White LED Driver Solutionwith LED Current and Timing Control
Layout Guidelines
Follow the guidelines below to ensure proper operation of the AAT2469 and AAT2499:
1. Maintain a ground plane and connect to the IC GND pin(s), and minimize the distance from the input capacitor
negative terminal to the GND pins.
2. Consider additional PCB GND exposed area for the AAT2469 and AAT2499 to maximize heat sinking capability.
Connect the EP (bottom of the die) to GND. Connect GND and SGND as close as possible to the package and
maximize the heat sinking space for overall performance.
3. Maximize package thermal dissipation and power handling capacity of the QFN77-48 package, solder the exposed
paddle of the IC onto the thermal landing of the PCB, where the thermal landing is connected to the ground plane.
If heat is still an issue, multi-layer boards with dedicated ground planes are recommended. Also, adding thermal
vias with 0.3mm hole size and 1.2mm spacing between the vias (Refer to Figures 2 and 3) on the thermal landing
would help transfer heat to the bottom GND plane of the PCB effectively.
Component
U1-U8
U9
C1-C9
C1, C3, C11
D1
D2
R1-R8
R10-R13, R17, R18
R14
R21
JP1
JP2, JP3, JP4
P1
P2
Part Number
Description
AAT2499
AAT2469
GRM188R61C104KA01D
GRM188R61C225KE15D
LTST-C190CKT
LL4148-13
CRCW06036K04FKEA
CRCW06030000Z0EA
CRCW06032K00FKEA
CRCW060310K0FKEA
TSW-120-08-G-D
TSW-120-08-G-D
HRP10H-ND
AWHW20G-0202-T-R
2 Channels White LED Driver
Control IC for AAT2499s
Cap Cer 0.1μF 16V X5R 0603
Cap Cer 2.2μF 16V X5R 0603
Red LED, SMD, 0603
Diode Switch 75V 500MW MINIMELF
Res 6.04KΩ 1/10W 1% 0603 SMD
Res 0Ω 1/10W 1% 0603 SMD
Res 2KΩ 1/10W 1% 0603 SMD
Res 10KΩ 1/10W 1% 0603 SMD
Conn. Header 4 Pos, 2.54mm
Conn. Header 2 Pos, 2.54mm
Header 5x2-Pin, Dual Row, 2.54mm
Header 10x2-Pin, Dual Row, 2.54mm
Manufacturer
Skyworks
Taiyo Yuden
Murata
Lite-On Inc.
Diode Inc
Vishay
Samtec, Inc
Assmann
Table 3: AAT2469/AAT2499 Evaluation Board BOM
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
202321A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • August 31, 2012
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EVALUATION BOARD DATA SHEET
EV187
Evaluation Board for the AAT2469/2499 Sixteen-Channel
TVLite White LED Driver Solutionwith LED Current and Timing Control
Figure 23: AAT2469 and AAT2499 Evaluation Board Layout – Top Layer.
Figure 24: AAT2469 and AAT2499 (7mm × 7mm TDFN) Evaluation Board Layout – Bottom Layer.
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Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
202321A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • August 31, 2012
EVALUATION BOARD DATA SHEET
EV187
Evaluation Board for the AAT2469/2499 Sixteen-Channel
TVLite White LED Driver Solutionwith LED Current and Timing Control
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202321A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • August 31, 2012
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