USER’S MANUAL
ISL6292EVAL2Z
Evaluation Board
AN1064
Rev 1.00
Jul 26, 2011
Description
The ISL6292EVAL2Z is a complete platform for the evaluation
on all datasheet specifications and functionalities. The on
board 9-bit DIP switch facilitates programming charging
current, setting EN input, battery thermal status, and so on.
The four jumpers can set up input source selection, USB mode
selection, and can be used to make other necessary
connections.
The ISL6292EVAL2Z board is intended to provide an
evaluation platform for the 4mmx4mm
2
QFN ISL6292
package, the single-cell Li-ion battery charger.
Assembled in the center square, the components constitute a
complete charger solution, demonstrating the space saving
advantage of the ISL6292 in limited space applications.
LEDs connected to STATUS and FAULT pins will indicate the
normal charging status or fault condition.
On board jumpers and a DIP switch accommodate different
operating conditions for the charger.
Key Features
• 9-bit DIP switch for conveniently setting up charging current,
battery thermal status, EN input, and so on.
• Different jumpers for input source selection, USB mode
selection, and the convenience of current measurement.
• Several exposed soldering pads connected to STATUS,
FAULT, TIME, EN, V2P8, IMIN and TEMP functional pins to
accommodate experimental testing that need extra
connections to those pins.
• Board size 3.5x2.5 square inches for the convenience of
evaluation.
• Eight thermal vias in the thermal pad simulating the
customers’ thermal enhanced environment.
What Is Needed
The following instruments will be needed to perform testing:
• Power supplies:
1. PS1: DC 20V/5A,
2. PS2: DC (sinks current) 20V/5A, such as
Agilent 6654A
• Electronic load: 20V/5A
• Multimeters
• Function generator
• Oscilloscope
• Cables and wires
Ordering Information
PART #
ISL6292EVAL2Z
DESCRIPTION
Evaluation Board for the 4x4 QFN
Package Part.
What Is Inside
The Evaluation Kit contains:
• ISL6292EVAL2Z board
• The ISL6292 Data Sheet
• This ISL6292EVAL2Z Application Note
• Errata (for preliminary reference only)
Quick Setup Guide
Step 1:
Switch on bit 4 and bit 7 of the Dip-switch. Leave all
other bits off; see Figure 1.
DO NOT APPLY POWER UNTIL STEP 6
Step 2:
Step 3:
Step 4:
Step 5:
12 VBAT
11 TEMP
10 IMIN
9
IREF
Pin Configuration
ISL6292
(16 LD 4X4 QFN)
TOP VIEW
VBAT
VBAT
VIN
VIN
Connect 5V on VIN.
Connect 3.7V on VBAT.
Connect 1.2A electronic load on VBAT.
Verify that no shunts across all jumpers.
Turn on Power Supplies and electronic load.
Green LED should be on, indicating normal charging
operation.
If current meter is in series with VIN, it shall read 1A
as the charging current.
16
VIN 1
FAULT 2
STATUS 3
TIME 4
5
GND
15
14
13
Step 6:
Step 7:
Step 8:
6
TOEN
7
EN
8
V2P8
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Jul 26, 2011
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ISL6292EVAL2Z
TABLE 2. JUMPER SETTINGS
ON
OFF
123456789
JUMPER
JP1
JP2
POSITION
USB TO VIN
WALL CUBE TO
VIN
Shunt Installed
Shunt installed
FUNCTION
USB input selected
Wall adapter input selected
connect VBAT pin to battery
current meter can replace shunt
Battery attached to Thermistor at J2
Default
Setting USB 500mA mode
Setting USB 100mA mode
FIGURE 1. INITIAL DIP SWITCH SETTINGS
DIP Switch Settings
A 9-bit DIP switch is provided to set up voltage, current reference,
end-of-charge (EOC) current, and so on. The functionality of the
bits are described in Table 1.
TABLE 1. DIP SWITCH PIN DESCRIPTIONS
BIT
1
2
3
4
5
6
7
8
9
DESCRIPTION
Adjustable
TIMEOUT
TIMEOUT
disable/enable
Charger
enable/disable
IREF setting 1
IREF setting 2
IMIN setting
TEMP normal
TEMP high
TEMP low
ON
5 hours
50 mins
TIMEOUT
disabled
charger
disabled
Add 0.5A
Add 1A
100mA
normal
too hot
too cold
OFF
3 hours
30 mins
TIMEOUT
enabled
charger
enabled
I
CHG
= 0.5A
When both off
50mA
All off
simulates
battery
removal
REMARK
JP3
JP4
Not installed
IREF and V2P8
IREF and GND
Initial Board Jumper Positioning (Refer to
Figure 3)
JP1 - Selects the VIN pin to be connected to either a wall
adapter, or to a USB connector. If the J1 connector is being used,
a shunt must be installed across ‘WALL CUBE TO VIN’, or if the J3
(USB) connector is being used, a shunt must be installed across
‘USB TO VIN’. J1, J3 and JP1 can be ignored if the power supply is
connected directly to VIN test point, which is directly connected
to VIN pin of the IC. A current meter, to measure the input
current, can replace the shunt mentioned above.
JP2 - Can connect the VBAT pin to the battery. If the J2 connector
is being used, a shunt must be installed across JP2. In this case,
a current meter can also replace the shunt to measure the VBAT
current.
JP3 - Can connect the TEMP pin to the battery. Usually no shunt
is needed for JP3, as the Evaluation board can simulate various
battery thermal conditions. Only when a battery with a attached
thermistor is applied on J2 does it become necessary to install a
shunt across JP3, simultaneously turning off bits 7, 8, and 9 on
the DIP switch.
JP4 - Selects USB modes; a shunt across IREF and V2P8 will set
USB 500mA mode; a shunt across IREF and GND will set USB
100mA mode. When the charge current is programmed by the
resistors connected to the IREF pin, no shunt should be installed
on JP4.
AN1064 Rev 1.00
Jul 26, 2011
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ISL6292EVAL2Z
Z
FIGURE 2. CONNECTION OF INSTRUMENTS
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Jul 26, 2011
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Board Layout Information
Schematic of PCB Board
AN1064 Rev 1.00
Jul 26, 2011
Page 4 of 7
ISL6292EVAL2Z
FIGURE 3. BOARD LAYOUT INFORMATION SCHEMATIC
ISL6292EVAL2Z
Bill Of Materials
TABLE 3. BOM FOR ISL6292EVAL2Z
ITEM
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
QUANTITY
1
1
1
1
1
1
1
1
2
1
2
1
1
1
1
1
1
1
1
2
2
1
1
1
6
REFERENCE
C1
C2
C3
C4
C5
C6
D1
D2
R1, R2
R3
R4, R5
R6
R7
R8
R9
R10
R11
J1
J2
JP1, JP4
JP2, JP3
J3
SW1
U1
PART DESCRIPTION
1µF/10V, X5R Ceramic Cap
10µF/6.3V Tantalum Cap
15nF/16V, X7R Ceramic Cap
0.1µF/16V, Y5V Ceramic Cap
10nF/16V, X7R Ceramic Cap
10µF/16V, Tantalum Cap
Green LED
Red LED
1k, 5%
10k, 1%
160k, 1%
160k, 1%
80k, 1%
160k, 1%
5k, 1%
500, 1%
18k, 1%
2.54mm Male Header, 2ckt (R/A)
2.54mm Male Header, 3ckt (R/A)
2.54mm Male Header, 3ckt
2.54mm Male Header, 2ckt
USB Receptacle, B Type
DIP Switch, 9 POS, SMT
Single-Cell Li-ion Battery Charger
16-pin, 3x3 QFN
PCB FOOTPRINT
0603
2.05x1.3x1.2
0402
0402
0402
3.2x1.6x1.6
0805
0805
0603
0402
0402
0805
0805
0805
0805
0805
0805
A23879-ND
A23880-ND
WM6403-ND
WM6402-ND
787780-1-ND
CKN1323-ND
ISL6292
5002K-ND
PART NUMBER
C1608X5R1A105K
TAJR106M006
C1005X7R1C153K
C1005Y5V1C104ZT
C1005X7R1C103K
TAJA106M016
67-1553-1-ND
67-1552-1-ND
VENDOR
TDK
AVX
TDK
TDK
TDK
AVX
DigiKey
DigiKey
Various
Various
Various
Various
Various
Various
Various
Various
Various
DigiKey
DigiKey
DigiKey
DigiKey
DigiKey
DigiKey
Intersil
DigiKey
VIN, VBAT, TIME, GND1, Test Point
GND2, GND3
AN1064 Rev 1.00
Jul 26, 2011
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stm32/stm8
