an1375

ISL9205xEVAL1Z Evaluation Board
Application Manual
®
Application Note
October 22, 2008
AN1375.1
Description
What is Needed
The ISL9205xEVAL1Z is an evaluation tool for the ISL9205
single-cell Li-ion battery charger. The evaluation tool
provides a complete evaluation platform addressing all data
sheet specifications and functionality. The jumpers on the
board facilitate the programming of the charge current and
different charging conditions. They can also be used to make
other necessary connections, such as current measurement.
The following instruments will be needed to perform testing:
The ISL9205 is a fully integrated single-cell Li-ion battery
charger that accepts input voltages ranging from up to 6.5V.
After being powered up, the ISL9205 is capable of operating
at an input voltage as low as 2.5V. The low operating voltage
allows the charger to work with a variety of AC adapters.
• Function generator
The ISL9205 offers both a 3 package and pinout option and
a total of 5 functional variants. The evaluation board
accommodates all of these variants. The board provides the
pads for 2 package types: the 16 Ld package and the 10 Ld
package. On the 10 Ld package option, there are 2 pin
functions for pin 9; temperature function (TEMP) and the
remote voltage sensing (VSEN) function. Two 0Ω resistors
are used to select these functions. Please refer to the
ordering information table to order the evaluation board.
• Power supplies:
- PS1: DC 30V/5A
- PS2: DC 20V/5A
• DC Electronic load: 20V/5A
• Multimeters
• Oscilloscope
• Cables and wires
Quick Setup Guide (Refer to Figure 1)
DO NOT APPLY POWER UNTIL STEP 8
Step 1:
Connect a 5V supply PS1 to J1 with the current
limit set at 1.2A
Step 2:
Insert a jumper shunt between pins 2 and 3 of
J2, as shown in Figure 1
Step 3:
Connect a 3.7V supply PS2 to J2 as shown in
Figure 1, with the current limit set at 1.2A
DESCRIPTION
Step 4:
Connect the DC electronic load of 1.2A to J2
ISL9205EVAL1Z
Evaluation Board for ISL9205
Step 5:
Connect amp-meter I2 as shown in Figure 1
ISL9205AEVAL1Z
Evaluation Board for ISL9205A
Step 6:
ISL9205BEVAL1Z
Evaluation Board for ISL9205B
ISL9205CEVAL1Z
Evaluation Board for ISL9205C
Insert a thermistor (type 103ET), or a 10k
resistor on JP2 to set a valid temperature
window
ISL9205DEVAL1Z
Evaluation Board for ISL9205D
Step 7:
Switch off all bits of the DIP switch except Bit 9
Step 8:
Turn on Power Supplies and DC electronic load
Step 9:
The green LED should be on, indicating normal
charging operation
Step 10:
The current meter I2 in series with PS2 should
read about 90mA as the charging current
• Flexible Power Connectors each with a Hook and a Solder
Pad Providing Variety to Users
Step 11:
Switch on Bit 5 of the DIP switch, the current
meter I2 should read about 800mA
• Convenient Jumpers for Programming the Charge
Current, Charge Mode and for Current Measurement
Step 12:
Switch on both Bit 5 and Bit 6; the current meter
I2 should read about 1000mA
Ordering Information
PART NUMBER
Key Features
• A Complete Evaluation Platform for the ISL9205 Charger
• Accommodates All Package Options
• Accepts Input Voltage up to 6.5V
• 89mmx65mm Board Size Handy for Evaluation
• Six Thermal Vias in the Thermal Pad Similar To
Customers’ Thermally Enhanced Environment
• On-Board LEDs for Input FAULT and STATUS State
Indication
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774 | Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2007, 2008. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
Application Note 1375
V2
V1
I2
I2
PSI
PS1
- ++
-
PS2
PS2
+ -+
-
+
+
E-load
E-LOAD
FIGURE 1. CONNECTION OF INSTRUMENTS
Detailed Description
ON
ON
The ISL9205xEVAL1Z is a complete evaluation platform
addressing all datasheet specifications and functionality. The
jumpers on the board facilitate the necessary connections,
such as current measurement.
O OFF
FF
11 22 33 44 55 66 77 88 99
FIGURE 2. DIP SWITCH BIT DESCRIPTION
Jumpers
JP1 - A shunt installed on JP1 connects the input source
from connector J1 to the circuit if input current measurement
is not needed. The shunt can be replaced by a current meter
if input current measurement is needed.
JP2 - Connection for the thermistor. An industrial standard
103ET type of thermistor or similar type that has a room
temperature resistance of 10kΩ should be connected to JP2.
If temperature measurement is not needed, a regular 10k
resistor can be used to set a valid temperature window. Note
that leaving JP2 open will cause the charge to shut down.
DIP Switch Settings
A 9-bit DIP switch is provided to set up current reference,
end-of-charge (EOC) current, and so on. The functionality of
the bits are described in Table 1.
TABLE 1. JUMPER SETTINGS
JUMPER
FUNCTION
JP1
Connect the input power at J1 to VIN pin
JP2
For thermistor connection
JP3
Connects VBAT to connector J2
JP3 - A shunt installed on JP3 connects the VBAT pin to the
output connector J2 if output current measurement is not
needed. The shunt can be replaced by a current meter if
output current measurement is needed.
2
AN1375.1
October 22, 2008
Application Note 1375
TABLE 2. DIP SWITCH SETTINGS
BIT
DESCRIPTION
ON
OFF
REMARK
1
Time-out period setting
5.8 hours
3.5 hours
2
Time-out enable
Disabled
Enabled
3
Charger enable
Charger disabled
Charger enabled
4
IMIN setting
IMIN = 80mA
IMIN = 10mA
5
IREF setting 1
ICH = 800mA
IBAT = 90mA
BIT6 = OFF
6
IREF setting 2
ICH = 1A
IBAT = 800mA
BIT5 = ON
7
TEMP normal
Normal
8
TEMP high
Too hot
9
TEMP low
Too cold
Not connected
All off simulates battery removal
Board Layout Information
1
2
R11 0
D2
C4
10nF
C7
R8 9.53k
1µF
C6
1µF
R6
R7
C3
15nF
C12
0.1µF
16
15
14
13
12
8
11
9
113k R4
392k R5
C2
1µF
1
2
3
4
6
7
10
5
115k R3
R2
470
C5 1µF
U1
VIN
VIN
VIN
FAULT
STATUS VBAT
TIME VBAT
TOEN VSEN
EN
V2P8
TEMP
IMIN
IREF
GND
ISL9205-16
C14
0.1µF
R10
806k
C10 C11
10µF 47µF
SW1
DIP-9
CON
C8
1µF
ISL9205-10
JP2
1
2
J2
3
2
1
R12 0
U2
1 VIN
VBAT 10
2 FAULT VS/T 9
3 STATUS IREF 8
4 TIME V2P8 7
5 GND
EN 6
18
17
16
15
14
13
12
11
10
R1
470
4.7µF
D1
C9
1µF
887k
R9
1
2
3
4
5
6
7
8
9
C1
10µF
JP3
1
2
JP1
1
2
C13
FIGURE 3. SCHEMATIC OF PCB BOARD
3
AN1375.1
October 22, 2008
Application Note 1375
PCB Layout
z
FIGURE 4. SILK LAYER
FIGURE 5. TOP LAYER
4
AN1375.1
October 22, 2008
Application Note 1375
PCB Layout (Continued)
FIGURE 6. BOTTOM LAYER
5
AN1375.1
October 22, 2008
Application Note 1375
ISL9205EVAL1Z Bill of Materials
ITEM QTY
REFERENCE
PART DESCRIPTION
PCB FOOTPRINT
PART NUMBER
VENDOR
1
1
U1
ISL9205 Charger IC
3x3 QFN 16L
ISL9205
Intersil
2
2
R1, R2
470Ω, 5%, 1/8W, Chip
0805
ERJ-6GEYJ471V
Panasonic
3
1
R3
115k, 1%, 1/16W, Chip
0402
ERJ-2RKF1153X
Panasonic
4
1
R4
113k,1%, 1/8W, Chip
0805
ERJ-6ENF1133V
Panasonic
5
1
R5
392k, 1%, 1/8W, Chip
0805
ERJ-6ENF3923V
Panasonic
6
1
R9
887k, 1%, 1/8W, Chip
0805
ERJ-6ENF8873V
Panasonic
7
1
R10
806k, 1%, 1/16W
0402
ERJ-2RKF8063X
Panasonic
8
1
R8
9.53k, 1%, 1/16W, Chip
0402
ERJ-2RKF9531X
Panasonic
9
2
R6, R7 (do not populate)
10
2
R11, R12 (do not populate)
0Ω, 5%, 1/16W
0402
9C04021A0R00JLHF3
YAGEO
11
1
C13
4.7µF, 35V, Tantalum
ECS-T1VC475R
Panasonic
12
2
C1, C12
0.1µF, 50V, X7R Ceramic
0603
C1608X7R1H104K
TDK
13
2
C6, C14
0.1µF, 10V, X5R Ceramic
0402
C1005X5R1A104K
TDK
14
2
C2, C7
1.0µF, 6.3V, X5R Ceramic
0603
ECJ-1VB0J105K
Panasonic
15
1
C3
15nF, 16V, X7R Ceramic
0402
ECJ-0EB1C153K
Panasonic
16
1
C4
10nF, 50V, X7R Ceramic
0805
ECJ-2VB1H103K
Panasonic
17
2
C5, C8
1µF, 25V, X5R Ceramic
0805
ECJ-2FB1E105K
Panasonic
18
1
C9
1µF, 25V, X5R Ceramic
0805
ECJ-2FB1E105K
Panasonic
19
3
C11
47µF, 6.3V, X5R, Ceramic
1210
ECJ-4YB0J476M
Panasonic
20
1
C10
10µF, 25V, Tantalum
ECS-T1EC106R
Panasonic
21
1
J1
2.54mm Center Header, 2ckt
22-11-2022
Molex
22
1
SW1
DIP Switch, 9 POS, SMT
SDA09H0SKD
ITT/C&K
23
1
J2
2.54mm Center Header, 3ckt
22-11-2032
Molex
24
2
VIN, VBAT
Test point, Red
5010
Keystone
25
9
FAULT, STATUS, TIME, IREF,
IMIN, TOEN, EN, V2P8, TEMP
Test point, Yellow
5014
Keystone
26
3
GND1, GND2, GND3
Test point, Black
5011
Keystone
27
3
JP1, JP2, JP3
2.54mm header, 2ckt
22-28-4020
Molex
28
1
D1
Green LED
0805
SML-LXT0805GW-TR
Lumex
29
1
D2
Red LED
0805
SML-LXT0805IW-TR
Lumex
6
DIP18
AN1375.1
October 22, 2008
Application Note 1375
ISL9205DEVAL1Z Bill of Materials
ITEM QTY
REFERENCE
PART DESCRIPTION
PCB FOOTPRINT
PART NUMBER
VENDOR
1
1
U1
ISL9205D Charger IC
3x3 DFN 10L
ISL9205D
Intersil
2
2
R1, R2
470Ω, 5%, 1/8W, Chip
0805
ERJ-6GEYJ471V
Panasonic
3
1
R4
113k,1%, 1/8W, Chip
0805
ERJ-6ENF1133V
Panasonic
4
1
R5
392k, 1%, 1/8W, Chip
0805
ERJ-6ENF3923V
Panasonic
5
1
R9
887k, 1%, 1/8W, Chip
0805
ERJ-6ENF8873V
Panasonic
6
1
R8
9.53k, 1%, 1/16W, Chip
0402
ERJ-2RKF9531X
Panasonic
7
2
R6, R7 (do not populate)
8
1
R11 (do not populate)
9
1
R12
0Ω, 5%, 1/16W
0402
9C04021A0R00JLHF3
YAGEO
10
1
C13
4.7µF, 35V, Tantalum
ECS-T1VC475R
Panasonic
11
2
C1, C12
0.1µF, 50V, X7R Ceramic
0603
C1608X7R1H104K
TDK
12
2
C6, C14
0.1µF, 10V, X5R Ceramic
0402
C1005X5R1A104K
TDK
13
2
C2, C7
1.0µF, 6.3V, X5R Ceramic
0603
ECJ-1VB0J105K
Panasonic
14
1
C3
15nF, 16V, X7R Ceramic
0402
ECJ-0EB1C153K
Panasonic
15
1
C4
10nF, 50V, X7R Ceramic
0805
ECJ-2VB1H103K
Panasonic
16
2
C5, C8
1µF, 25V, X5R Ceramic
0805
ECJ-2FB1E105K
Panasonic
17
1
C9
1µF, 25V, X5R Ceramic
0805
ECJ-2FB1E105K
Panasonic
18
3
C11
47µF, 6.3V, X5R, Ceramic
1210
ECJ-4YB0J476M
Panasonic
19
1
C10
10µF, 25V, Tantalum
ECS-T1EC106R
Panasonic
20
1
J1
2.54mm Center Header, 2ckt
22-11-2022
Molex
21
1
SW1
DIP Switch, 9 POS, SMT
SDA09H0SKD
ITT/C&K
22
1
J2
2.54mm Center Header, 3ckt
22-11-2032
Molex
23
2
VIN, VBAT
Test point, Red
5010
Keystone
24
7
FAULT, STATUS, TIME, IREF, EN, Test point, Yellow
V2P8, TEMP
5014
Keystone
25
3
GND1, GND2, GND3
Test point, Black
5011
Keystone
26
3
JP1, JP2, JP3
2.54mm header, 2ckt
22-28-4020
Molex
27
1
D1
Green LED
0805
SML-LXT0805GW-TR
Lumex
28
1
D2
Red LED
0805
SML-LXT0805IW-TR
Lumex
7
DIP18
AN1375.1
October 22, 2008
Application Note 1375
ISL9205AEVAL1Z, ISL9205BEVAL1Z, ISL9205CEVAL1Z Bill of Materials
ITEM QTY
REFERENCE
PART DESCRIPTION
PCB FOOTPRINT
PART NUMBER
VENDOR
1
1
U1
ISL9205A, ISL9205B, ISL9205C 3x3 DFN 10L
Charger IC
ISL9205A/B/C
Intersil
2
2
R1, R2
470Ω, 5%, 1/8W, Chip
0805
ERJ-6GEYJ471V
Panasonic
3
1
R4
113k,1%, 1/8W, Chip
0805
ERJ-6ENF1133V
Panasonic
4
1
R5
392k, 1%, 1/8W, Chip
0805
ERJ-6ENF3923V
Panasonic
5
1
R9
887k, 1%, 1/8W, Chip
0805
ERJ-6ENF8873V
Panasonic
6
1
R8
9.53k, 1%, 1/16W, Chip
0402
ERJ-2RKF9531X
Panasonic
7
2
R6, R7 (do not populate)
8
1
R11
0Ω, 5%, 1/16W
0402
9C04021A0R00JLHF3
YAGEO
9
1
R12 (do not populate)
10
1
C13
4.7µF, 35V, Tantalum
ECS-T1VC475R
Panasonic
11
2
C1, C12
0.1µF, 50V, X7R Ceramic
0603
C1608X7R1H104K
TDK
12
2
C6, C14
0.1µF, 10V, X5R Ceramic
0402
C1005X5R1A104K
TDK
13
2
C2, C7
1.0µF, 6.3V, X5R Ceramic
0603
ECJ-1VB0J105K
Panasonic
14
1
C3
15nF, 16V, X7R Ceramic
0402
ECJ-0EB1C153K
Panasonic
15
1
C4
10nF, 50V, X7R Ceramic
0805
ECJ-2VB1H103K
Panasonic
16
2
C5, C8
1µF, 25V, X5R Ceramic
0805
ECJ-2FB1E105K
Panasonic
17
1
C9
1µF, 25V, X5R Ceramic
0805
ECJ-2FB1E105K
Panasonic
18
3
C11
47µF, 6.3V, X5R, Ceramic
1210
ECJ-4YB0J476M
Panasonic
19
1
C10
10µF, 25V, Tantalum
ECS-T1EC106R
Panasonic
20
1
J1
2.54mm Center Header, 2ckt
22-11-2022
Molex
21
1
SW1
DIP Switch, 9 POS, SMT
SDA09H0SKD
ITT/C&K
22
1
J2
2.54mm Center Header, 3ckt
22-11-2032
Molex
23
2
VIN, VBAT
Test point, Red
5010
Keystone
24
7
FAULT, STATUS, TIME, IREF, EN, Test point, Yellow
V2P8, TEMP
5014
Keystone
25
3
GND1, GND2, GND3
Test point, Black
5011
Keystone
26
3
JP1, JP2, JP3
2.54mm header, 2ckt
22-28-4020
Molex
27
1
D1
Green LED
0805
SML-LXT0805GW-TR
Lumex
28
1
D2
Red LED
0805
SML-LXT0805IW-TR
Lumex
DIP18
Intersil Corporation reserves the right to make changes in circuit design, software and/or specifications at any time without notice. Accordingly, the reader is cautioned to
verify that the Application Note or Technical Brief is current before proceeding.
For information regarding Intersil Corporation and its products, see www.intersil.com
8
AN1375.1
October 22, 2008
Similar pages