PowerDsine Battery Charger LX2206 User Manual

LX2206  
EVALUATION BOARD USER GUIDE  
LX2206 DUAL LEVEL BATTERY  
CHARGER  
®
TM  
Copyright © 2002  
Rev. 1.1, 2006-11-17  
Microsemi  
Page 1  
Integrated Products  
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570  
Download from Www.Somanuals.com. All Manuals Search And Download.  
LX2206  
EVALUATION BOARD USER GUIDE  
INTRODUCTION TO PRODUCT  
The LX2206 Evaluation Board is available from Microsemi for evaluating the performance of the LX2206 Battery Charger  
integrated circuit. The component sizes used on the evaluation board facilitate easy probing, however, in practice, smaller  
component sizes are recommended to minimize the circuit physical size.  
KEY FEATURES  
ƒ
ƒ
ƒ
ƒ
ƒ
ƒ
ƒ
ƒ
ƒ
ƒ
Two independent programmable charge currents  
0.5% Float voltage tolerance  
Charging up to 1A.  
Charging from USB port.  
USB current compliance  
Full battery Indicator  
CC/CV w thermal Feedback  
Battery temp monitor  
Precision charge termination  
Power Good Indicator  
APPLICATIONS  
ƒ MP3 player  
ƒ PDA  
ƒ PMC  
ƒ Digital Camera  
ƒ Charge cradle  
PART SPECIFIC INFORMATION  
Part Number  
Product  
LX2206ILD  
Dual Level Lithium Ion Battery Charger  
TABLE 1 – PART INFORMATION  
IC  
EVALUATION BOARDS  
LX2206ILD  
LX2206 EVAL KIT  
TABLE 2 – EVALUATION BOARD INFORMATION  
Copyright © 2002  
Rev. 1.1, 2006-11-17  
Microsemi  
Integrated Products  
Page 3  
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570  
Download from Www.Somanuals.com. All Manuals Search And Download.  
LX2206  
EVALUATION BOARD USER GUIDE  
SCHEMATIC FOR LX2206 EVALUATION BOARD  
STATUS  
R6  
2.49k  
CHARGING  
FULL  
R3  
2.49k  
3
4
1
2
C3  
0.47u  
IN  
STAT  
PWR  
C1  
CMP  
H/L  
POWER  
ATTACHED  
10uF  
6
5
R7  
GND  
DCOK  
LX2206  
R8  
2.49k  
121k  
SD  
9
R1  
1.00k  
Battery  
Temperature  
Lockout  
TMP  
BAT  
8
7
H
HCP  
LCP  
R9  
10  
Not  
Used  
R10  
24.9k  
L
GND  
BP  
Sensing  
I PGM  
R2  
NTC  
RTN  
1.00k  
OFF  
RT1  
ON  
SHUTDOWN  
BAT TEMP  
R5  
19.6k  
R4  
110k  
Current  
Programming  
BAT+  
RTN  
C2  
10uF  
BATTERY  
Figure 1 – LX2206 Evaluation Board Schematic  
Copyright © 2002  
Rev. 1.1, 2006-11-17  
Microsemi  
Page 4  
Integrated Products  
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570  
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LX2206  
EVALUATION BOARD USER GUIDE  
BLOCK DIAGRAM  
-
+
SD  
ENABLE  
DCOK  
STAT  
UVLO  
TMP  
IN  
CHARGE  
CONTROL  
BAT  
CHARGE  
TERMINATION  
CONTROL  
CONSTANT  
VOLTAGE  
CONTROL  
TEMPERATURE  
CONTROL  
CONDITIONING  
THRESHOLD  
H/L  
COND.  
CURRENT  
LCP  
LOW  
CHARGING  
CURRENT  
HCP  
GND  
HIGH  
CHARGING  
CURRENT  
Figure 2 – Simplified Block Diagram  
Copyright © 2002  
Rev. 1.1, 2006-11-17  
Microsemi  
Page 5  
Integrated Products  
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570  
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LX2206  
EVALUATION BOARD USER GUIDE  
and the Negative terminal to the RTN  
terminal.  
LX2206 EVAL CONNECTIONS  
Connections: The LX2206 Evaluation Board has  
one power input and one power output connection.  
2) Apply a +5V power source to the PWR  
terminal and the power supply return to the  
GND terminal.  
3) Move the SHUTDOWN jumper to the ON  
position.  
VOLTAGE  
FUNCTION PIN NAME  
4) The POWER ATTACHED and CHARGING  
LEDs should be lit when the battery is  
charging and the POWER ATTACHED and  
FULL LEDs should be lit when the battery is  
fully charged.  
Input Power  
Input RTN  
Battery +  
Battery -  
PWR  
GND  
BAT+  
RTN  
5V +/- 0.65V  
0V  
0V to 4.3V  
0V  
5) Monitor the charge current into the battery  
with a current probe.  
6) Verify that the current changes levels  
between approximately 92mA and 460mA  
when the I PGM jumper is moved between  
its two positions.  
Jumpers: The LX2206 Evaluation Board has two  
position jumper blocks. The jumper can be moved to  
select either a high logic level or low logic level. It is  
also possible to remove the jumper and apply a  
voltage directly to the center pin of the jumper block.  
7) Verify that moving the SHUTDOWN battery  
to the OFF position extinguishes the LEDs  
and terminates the charge cycle.  
8) The thermal lockout can be tested by  
removing RT1 and replacing it with a  
variable resistor to simulate the resistance of  
RT1 under extreme hot and cold conditions.  
Hookup: The following is a demonstration scenario  
that can be used to evaluate the LX2206.  
1) Apply the single cell Lithium Ion or Lithium  
polymer battery to the battery screw terminal  
block. Be sure to connect the positive  
terminal of the battery to the BAT+ terminal  
Copyright © 2002  
Rev. 1.1, 2006-11-17  
Microsemi  
Page 6  
Integrated Products  
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570  
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LX2206  
EVALUATION BOARD USER GUIDE  
LX2206 TYPICAL TEST HOOKUP  
BAT TEMP  
NTC  
RTN  
RT1  
INTEGRATED PRODUCTS  
-
Single Cell  
Lithium Ion  
Battery  
L
R1  
R2  
H
+
LX2206  
ON  
PWR  
OFF  
+
GND  
5V Power  
Supply  
FULL  
STATUS  
POWER  
CHARGING  
ATTACHED  
LX2206 DUAL LEVEL LITHIUM-ION  
BATTERY CHARGER EVAL PCB  
-
Figure 3 – LX2206 Typical Test Hookup  
PCB LAYOUT RECOMMENDATIONS  
It is recommended that C1 and C2 be located within  
1cm of the LX2206. The CMP capacitor should be  
located close to the IN and CMP pins. Also the high  
impedance summing node connecting to the TMP pin  
should be kept relatively short to prevent the coupling  
of noise into this node. It is important that the LX2206  
have a good thermal path to ambient to dissipate  
heat. The simplest way to do this is to heatsink the  
LX2206 bottom pad directly to the ground plane by  
placing 4 or more vias in the ground pad directly  
under the LX2206 footprint.  
Copyright © 2002  
Rev. 1.1, 2006-11-17  
Microsemi  
Page 7  
Integrated Products  
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570  
Download from Www.Somanuals.com. All Manuals Search And Download.  
LX2206  
EVALUATION BOARD USER GUIDE  
LX2206 PRINTED CIRCUIT BOARD LAYOUT  
BAT TEMP  
NTC  
RTN  
RT1  
INTEGRATED PRODUCTS  
L
R1  
R2  
H
LX2206  
ON  
PWR  
OFF  
GND  
FULL  
STATUS  
POWER  
CHARGING  
ATTACHED  
LX2206 DUAL LEVEL LITHIUM-ION  
BATTERY CHARGER EVAL PCB  
Figure 4 – LX2206 Evaluation Board Layout  
Copyright © 2002  
Rev. 1.1, 2006-11-17  
Microsemi  
Page 8  
Integrated Products  
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570  
Download from Www.Somanuals.com. All Manuals Search And Download.  
LX2206  
EVALUATION BOARD USER GUIDE  
LX2206 EVALUATION BOARD BILL OF MATERIALS  
MISCELLANEOUS COMPONENTS  
Line  
Item  
1
2
3
4
5
Reference  
Part Description  
Manufacturer & Part #  
Case  
Qty  
Designators  
Microsemi IC – Dual Level Li-Ion Charger  
LED - Amber  
3x3 MLP  
0603  
0603  
0603  
0402  
U1  
1
1
1
1
1
MICROSEMI  
PANASONIC  
PANASONIC  
PANASONIC  
LX2206ILD  
CHARGING  
FULL  
POWER ATTACH  
RT1  
LNJ414K8YRA  
LNJ214K8ARA  
LNJ314G8TRA  
LED - Red  
LED - Green  
Thermistor – NTC, 100k  
VISHAY  
NTHS0402N01N1003J  
6
7
8
9
10  
11  
Terminal Block 2 position/ 7mm spacing  
Header 3 pin 0.100in spacing  
Header 2 pin 0.100in spacing  
Header 1 pin  
Jumper, 2 Pos, 0.100 inch spacing  
Printed Circuit Board  
BATTERY  
I PGM, SHUTDN  
BAT TEMP  
PWR, GND  
I PGM, SHUTDN  
1
2
1
2
2
1
OST  
OST/2/7.0  
MICROSEMI  
SGE#3541 X1  
CAPACITORS  
Line  
Item  
1
Reference  
Designators  
C1,2  
Part Description  
Part Number  
Case  
Qty  
Capacitor, X5R, 10uF, 10V, 10%  
Capacitor, X7R, 0.47uF, 16V, 20%  
1206  
0805  
2
1
TAIYO YUDEN LMK316BJ106KD-T  
TAIYO YUDEN EMK212BJ474KD-T  
2
C3  
RESISTORS  
Line  
Item  
Reference  
Designators  
Part Description  
Part Number  
Case  
Qty  
1
2
3
4
5
6
Resistor, 1.00K, 1%, 1/10W  
Resistor, 2.49K, 1%, 1/10W  
Resistor, 110K, 1%, 1/10W  
Resistor, 19.6K, 1%, 1/10W  
Resistor, 121K, 1%, 1/10W  
Resistor, 24.9K, 1%, 1/10W  
0805  
0805  
0805  
0805  
0805  
0805  
R1,2  
R3,6,7  
R4  
R5  
R8  
2
3
1
1
1
1
PANASONIC  
PANASONIC  
PANASONIC  
PANASONIC  
PANASONIC  
PANASONIC  
ERJ-6ENF1001V  
ERJ-6ENF2491V  
ERJ-6ENF1103V  
ERJ-6ENF1962V  
ERJ-6ENF1213V  
ERJ-6ENF2492V  
R10  
Copyright © 2002  
Rev. 1.1, 2006-11-17  
Microsemi  
Page 9  
Integrated Products  
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570  
Download from Www.Somanuals.com. All Manuals Search And Download.  

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