USER’S MANUAL
ISL6299AEVAL1
Evaluation Board Application Manual
AN1170
Rev 1.00
Aug 16, 2005
Description
The ISL6299AEVAL1 is an evaluation tool for the ISL6299A
single-cell Li-ion battery charger. The evaluation tool
provides a complete evaluation platform addressing all
datasheet specifications and functionality. The jumpers on
the board facilitate the programming of the charge current,
different charging conditions, and can be used to make other
necessary connections, such as current measurement.
The ISL6299A is a dual input, fully integrated single-cell
Li-ion battery charger. The ISL6299A charger accepts two
input sources: one from a USB port and the other from a
desktop cradle. The cradle input accepts input voltages
ranging from 4.5V up to 28V. Due to the high voltage
capability, the components associated with the cradle input
circuit on the evaluation board are good for a 28V supply.
The charger’s USB input and the associated components on
the evaluation board are good for a maximum 6V input.
The components assembled in the center square constitute
a complete charger, indicating the space saving advantage
of the typical ISL6299A installation in space-limited
applications.
Features
• A Complete Evaluation Platform for the ISL6299A Charger
• The Center Square Suggesting the Space Saving
Advantage of the Typical Components Assembly
• Cradle Input Accepts Voltage up to 28V
• Flexible Power Connectors Each with a Hook and a
Solder Pad Providing Variety to Users
• USB Port On Board Accepts Power Directly From USB
Cable
• Convenient Jumpers for Programming the Charge
Current, Charge Mode, and for Current Measurement
• 3.5 x 2.5 Square Inches Board Size Handy for Evaluation
• Thermal Vias in the Thermal Pad Similar To Customers’
Thermally Enhanced Environment
• On-Board LEDs for Input PPR and CHG State Indication
What is Needed
The following instruments will be needed to perform testing:
• Power supplies:
1) PS1: DC 30V/2A
2) PS2: DC 10V/2A
3) PS3: DC 10V/2A
• DC Electronic load: 20V/2A
• Multimeters
• Function generator
Ordering Information
PART #
ISL6299AEVAL1
DESCRIPTION
Evaluation Board for ISL6299A
Pinout
CRDL
USB
PPR
CHG
EN
1
2
3
4
5
10 BAT
9
8
7
6
ICDL
GND
USBON
IMIN
• Oscilloscope
• Cables and wires
AN1170 Rev 1.00
Aug 16, 2005
Page 1 of 9
ISL6299AEVAL1
Quick Setup Guide (Refer to Figure 1)
DO NOT APPLY POWER UNTIL STEP 5
For Cradle Input:
Step 1:
Step 2:
Step 3:
Step 4:
Step 5:
Step 6:
Connect a 5V supply PS1 to CRDL input (J1,
upper +) with the current limit set at 1.3A
Connect a 3.7V supply PS3 to BAT output (J2,
upper +) with the current limit set at 1.3A
Connect a current meter to JP6 as shown in
Figure 1
Connect the dc electronic load of 1.2A to BAT
(J2, upper +)
Insert a jumper shunt on JP2 and JP3, all other
jumper shunts are not installed
Turn on Power Supplies and dc electronic load,
adjust the power supply PS3 such that the
voltmeter V2 reads 3.7V
Both the red and the green LEDs should be on,
indicating power on and charging condition
The current meter I2 should read about 0.26A as
the charging current
Insert a jumper shunt on JP5 and the current
meter I2 should read about 0.55A charging
current
Insert a jumper shunt on both JP5 and JP7, the
current meter I2 should read about 0.95A
charging current
Remove the jumper shunt on JP3 and apply a
3.3V supply, positive to pin 1 (at the right) of
JP3, negative to GND
Slowly reduce the dc electronic load current until
the green LED turns off, the current meter I2
should read about 84mA EOC current
Insert a jumper shunt on JP4 and repeat Step
11, the current meter I2 should read 40mA EOC
current
For USB Input:
Step 1:
Step 2:
Step 3:
Step 4:
Step 5:
Connect a 5V supply PS2 to USB with the
current limit set at 0.7A
Connect a 3.7V supply PS3 to BAT (upper +)
with the current limit set at 0.7A
Connect the dc electronic load of 0.6A to BAT
(upper +)
Install a jumper shunt on JP 8 to USBON
position
Turn on Power Supplies and dc electronic load,
adjust the power supply PS3 such that the
voltmeter V2 reads 3.7V
Both the red and the green LEDs should be on,
indicating power on and charging condition
The current meter I2 should read about 0.38A
charging current
Remove the jumper shunt on JP3 and apply a
3.3V supply, positive to pin 1 (at the right) of
JP3, negative to GND
Slowly reduce the electronic load current until
the green LED turns off, the current meter I2
should read about 75mA EOC current
Step 6:
Step 7:
Step 8:
Step 7:
Step 8:
Step 9:
Step 9:
Step 10:
Step 11:
Step 12:
Step 13:
AN1170 Rev 1.00
Aug 16, 2005
Page 2 of 9
ISL6299AEVAL1
I1
I2
PS1
-
+
PS3
+
PS2
-
+
+
-
-
E -lo a d
FIGURE 1. CONNECTION OF INSTRUMENTS
AN1170 Rev 1.00
Aug 16, 2005
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ISL6299AEVAL1
Description of Jumper Settings
JP1 -
Connects the EN pin to a pull-up voltage or GND. The
pull-up voltage is either the BAT voltage (When a shunt is
installed on JP3) or an external 3.3V power source (when
the shunt on JP3 is removed and a +3.3V supply is
connected to pin 1(at the right) of JP3. If there is no shunt
installed on JP1, the EN pin is internally pulled down to logic
LOW, which enables the charger. If a shunt is installed
across the two jumper pins labeled as “Enable”, the EN pin
is driven to logic LOW, the charger is enabled, same as
floating. If the shunt is installed across the two jumper pins
labeled as “Disable” and the pull-up voltage is above 2V, the
EN pin is driven to logic HIGH, which disables the charger.
JP2 -
A shunt installed on JP2 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, as shown in
Figure 1.
JP3 -
Selects the power source for logic pull-up and the LED
supply. If a shunt is installed, the BAT voltage is selected as
the power source. If the shunt is removed, an external power
supply of +3.3V can be connected from Pin1 (at the right) to
GND to provide the pull-up and LED supply power. The
purpose is to exclude the extra current through the charger
when characterizing small currents such as EOC and
quiescent currents.
JP4 -
Parallels an additional 316K resistor to the IMIN pin
(total RIMIN = 158K), such that the End-of-Charge Current
will be increased to 84mA (R
IMIN
is 316K and the EOC
current is 40mA without the shunt).
JP5 -
Parallels an additional 57.6K resistor to the ICDL pin
(total RICDL = 28.8K), such that the cradle charge current
will be increased to 0.55A (R
IREF
is 57.6K and the charge
current is 0.26A if the shunts on both JP5 and JP7 are
removed).
JP6 -
A shunt installed on JP6 connects the BAT 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 as shown in
Figure 1.
JP7 -
Parallels an additional 57.6K resistor to the ICDL pin
(total RICDL = 19.2K), such that the cradle charge current
will be increased to 0.95A.
JP8 -
ON/OFF control for USB input. Install a jumper shunt
on USB OFF position to turn off the USB charge but has no
impact on the cradle input charge.
JP9 -
A shunt installed on JP9 connects the input source
from the USB port connector to the USB pin if a USB port is
used for the evaluation.
TABLE 1. JUMPER SETTING SUMMARY
JUMPER
POSITION
Shunt on Disable
JP1
Shunt on Enable
FUNCTION
Charger disabled
Charger enabled
Shunt not installed Charger enabled
Shunt installed
JP2
JP3
JP4
JP5
JP6
Shunt installed
Shunt installed
JP7
Shunt installed
Shunt installed
Shunt installed
Connects input source at J1 to
CRDL pin
Select BAT as the pull-up source
Sets CRDL EOC current to 84mA
Sets CRDL charging current to
0.55A, if shunt on JP7 is not
installed
Connects BAT to J2
Sets CRDL charging current to
0.95A, if shunt on JP5 is also
installed
Shunt on USB OFF Turns off USB charge
JP8
Shunt on USB ON Turns on USB charge
Shunt not installed Turns off USB charge
JP9
Shunt installed
Connects input source from USB
port connector to USB pin
AN1170 Rev 1.00
Aug 16, 2005
Page 4 of 9
ISL6299AEVAL1
Board Design
Schematic
CRDL
1
GND1
1
GND2
1
VBAT
1
JP2
J1
1
2
1
2
C1
4.7uF
C3
10uF
C5
47uF
C6
47uF
C7
47uF
2
JP6
1
2
1
J2
C2
USB
1
0.1uF
C9
1
C10
4.7uF
1
USB Type B
1
2
3
4
5
C8
1uF
CHG
PWR
EN
1
R1
500
R2
500
CHG
1
PPR
1
USBON
1
D1
D2
0.1uF
JP3
2
U1
CRDL
USB
PPR
CHG
EN
BAT
ICDL
GND
USBON
IMIN
C4
1uF
JP9
J3
1
2
3
4
2
IMIN
1
ICDL
1
2
10
9
8
7
6
2
JP4
1
1
JP5
2
R6
57.6K
R7
57.6K
1
JP7
ISL6299A/3x3C DFN
R3
57.6K
R4
316K
R5
316K
1
2
3
JP1
DISABLE
ENABLE
JP8
USB
ON
USB
OFF
FIGURE 2. SCHEMATIC
AN1170 Rev 1.00
Aug 16, 2005
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2
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