SP6652LEDEB [SIPEX]
Evaluation Board Manual; 评估板手册
| 型号： | SP6652LEDEB |
| 厂家： | 
SIPEX CORPORATION |
| 描述： | Evaluation Board Manual |
| 文件： | 总4页 (文件大小：506K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
SP6652LED
Evaluation Board Manual
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ꢀ
3V to 5.5V Input Range
Accurate 350mA or 900mA Output
Current
ꢀ
ꢀ
ꢀ
High Efficiency
Small 10-Pin MSOP Package
1.2MHz Switching Frequency
Enables Small Components
ꢀ
ꢀ
Integrated Design with Minimal
Components.
Use 4 cell alkaline, NiCad, NiMH, or 1
cell Lithium Ion Battery or 3.3V or 5V
Logic supply
DESCRIPTION AND BOARD SCHEMATIC
The SP6652LED Evaluation Board is a compact circuit that was built on SP6652 and can
provide a stable drive current for a 1W or 3W Luxeon type light source. The SP6652 is an
integrated synchronous buck regulator configured to provide constant output current for this
application. The evaluation board is a completely assembled and tested surface mount board
which provides easy probe access points to all SP6652 inputs and outputs so that the user can
quickly connect and measure electrical characteristics and waveforms.
VIN=3.0~5.5V
VOUT
L1 4.7uH
SP6652
1W or 3W Luxeon
U1
10
9
1
2
3
4
5
10uF
COUT
LX
PVIN SGND
SVIN FB
SYNC COMP
PGND
5
1
+
U2
0.75V
8
4
LMV321
Vref
OUT
RVIN
10.0
7
3
-
2
6
Rz
100
MODE
SD
R3
R2
Rb1
Rb2
100mOhm
CVIN
1.0uF
J1
R1
10K
280K
140K
CIN
10uF
1
2
3
Cc
10nF
R4
0
SHDN
R4 Open: 1W
R4 Short: 3W
Date: 05/15/06 RevA
SP6652LED Evaluation Board Manual
Copyright 2006 Sipex Corporation
USING THE EVALUATION BOARD
1) Powering Up the SP6652LED Circuit
The SP6652LED Evaluation Board can be powered from 4 cell alkaline, NiCad, NiMH, or 1 cell
Lithium Ion Battery or 3.3V or 5V Logic supply. Connect with short leads directly to the “VIN”
and “GND” posts. Plug the 1W Luxeon I or 3W Luxeon III between the “VOUT” and “Vref” posts.
2) Using the J1 Jumper for ON/OFF Control
When the hat is put on 1 & 2 position, the SHDN pin is connected to Vin. When the hat is put on
2 & 3 position, the SHDN pin is tied to ground and the part will be in shutdown mode.
3) Select from 1W or 3W Application
The board was set up for 1W application as default. In this application, R4 was open. When the
customer need to use this board to drive Luxeon III, short R4 by using a 0 Ohm resistor.
POWER SUPPLY DATA
For the standard evaluation board, the following chart shows the efficiency data for different
applications.
SP6652LED 3 or 4 Cell to 3W LumiLEDs
SP6652LED 3 or 4 Cell to 1W LumiLEDs
100
95
90
85
80
75
70
1000
900
800
700
600
500
400
300
200
100
0
400
350
300
250
200
150
100
50
100
95
90
85
80
75
70
1W Efficiency
1W Iout
3W Efficiency
3W Iout
0
2.8
3.2
3.6
4.0
4.4
4.8
5.2
5.6
6.0
2.8
3.2
3.6
4.0
4.4
4.8
5.2
5.6
6.0
Vin (V)
Vin (V)
Fig. 1 Efficiency data of the SP6652LED evaluation board
Date: 05/15/06 RevA
SP6652LED Evaluation Board Manual
Copyright 2006 Sipex Corporation
Page 2 of 4
EVALUATION BOARD LAYOUT
FIGURE 1: SP6652LEDEB COMPONENT PLACEMENT
FIGURE 2: SP6652LEDEB PC LAYOUT TOP SIDE
FIGURE 3: SP6652LEDEB PC LAYOUT BOTTOM SIDE
Date: 05/15/06 RevA
SP6652LED Evaluation Board Manual
Copyright 2006 Sipex Corporation
Page 3 of 4
TABLE1: SP6652LEDEB LIST OF MATERIALS
SP6652LEDEB List of Materials
Layout Size
Ref. Des.
Qty.
Manufacturer
Part Number
Component
Vendor
LxWxH
MSOP-10
SOT23-5
0805
U1
U2
1
1
Sipex Corp.
National Semi
TDK Corp
SP6652
High Efficiency Current Mode Buck Regulator Sipex 978-667-8700
LMV321M5
Rail-to-Rail Output Operational Amplifiers
10uF/6.3V/X5R/ Ceramic
1uF/10V/X5R/ Ceramic
National Semi
TDK 847-803-6100
TDK 847-803-6100
TDK 847-803-6100
www.we-online.com
LumiLEDs
C1N, COUT
CVIN
Cc
2
C2012X5R0J106M
C1608X5R1A105K
C1608X7R1H103K
744042004
1
TDK Corp
0805
1
TDK Corp
0805
10nF/50V/X7R/ Ceramic
4.7uH, 1.7A, 0.07ohm, SM Inductor
Open
L1
1
Wurth Elektronik
LumiLEDs
4.8x4.8x1.8mm
D
1
Luxeon I and III
CRCW0603R047F
Rb1
Rb2
RVIN
Rz
1
Vishay
0603
0.047 Ohm 1/16W 1% 0603 SM
www.vishay.com
NU
1
Panasonic
Panasonic
Panasonic
Panasonic
Panasonic
Panasonic
Panasonic
0603
0603
0603
0603
0603
0603
0603
10 Ohm 1/16W 1% 0603 SM
100 Ohm 1/16W 1% 0603 SM
10K Ohm 1/16W 1% 0603 SM
140K Ohm 1/16W 1% 0603 SM
280K Ohm 1/16W 1% 0603 SM
Open
800-Digi-Key
800-Digi-Key
800-Digi-Key
800-Digi-Key
800-Digi-Key
800-Digi-Key
800-Digi-Key
800-Digi-Key
1
R1
1
R2
1
R3
1
R4
1
RI, RF
J1
2
Open
1
3-Pin Jumper
ORDERING INFORMATION
Temperature Range
Model
Package Type
SP6652LEDEB............................. -40°C to +85°C...................SP6652LED Evaluation Board
SP6652EU.....................................-40°C to +85°C...................................... 10-pin µSOIC
Date: 05/15/06 RevA
SP6652LED Evaluation Board Manual
Copyright 2006 Sipex Corporation
Page 4 of 4
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