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AN1260.1

January 26, 2010

Quick Setup Guide 

(Refer to Figure 1)

DO NOT APPLY POWER UNTIL STEP 6

For Cradle Input:

Step 1:

Connect a 5V supply PS1 to CRDL input 
(J1, upper +) with the current limit set at 
1.3A

Step 2:

Connect a 3.7V supply PS3 to BAT output 
(J3, upper +) with the current limit set at 
1.3A

Step 3:

Connect a current meter to JP6, as shown 
in Figure 1

Step 4:

Connect the DC electronic load of 1.2A to 
BAT (J3, upper +)

Step 5:

Insert a jumper shunt on JP1, all other 
jumper  shunts are not installed

Step 6:

Turn on Power Supplies and DC electronic 
load, adjust the power supply PS3 such 
that the voltmeter V2 reads 3.7V

Step 7:

Both the red and the green LEDs should 
be on, indicating power on and charging 
condition

Step 8:

The current meter I2 should read about 
0.28A as the charging current

Step 9:

Insert a jumper shunt on JP7 and the 

current meter I2 should read about 
0.575A charging current

Step 10: Insert a jumper shunt on both JP7 and 

JP8, the current meter I2 should read 
about 1.04A charging current

Step 11: Reduce the voltage at PS3 to 2.0V for 

trickle charge currents. Repeat Steps 8, 9 
and 10. The current reading should be 
52mA,103mA and 187mA for steps 8, 9 
and 10, respectively

Step 12: Slowly reduce the DC electronic load 

current until the green LED turns off. The 
current meter I2 should read about 47mA 
EOC current

Step 13: Insert a jumper shunt on JP5 and repeat 

Step 12, the current meter I2 should read 
93mA EOC current

For USB Input:

Step 1:

Connect a 5V supply PS2 to USB with the 
current limit set at 0.7A

Step 2:

Connect a 3.7V supply PS3 to BAT (J3 
upper +) with the current limit set at 0.7A

Step 3:

Connect the DC electronic load of 0.6A to 
BAT (upper +)

Step 4:

Connect a current meter to JP6 as shown 
in Figure 1

Step 5:

Install a jumper shunt on JP2 and a 
jumper shunt on JP4 to the USBON 
position, all other jumpers shunts are not 
installed

Step 6:

Turn on Power Supplies and DC electronic 
load, adjust the power supply PS3 such 
that the voltmeter V2 reads 3.7V

Step 7:

Both the red and the green LEDs should 
be on, indicating power on and charging 
condition

Step 8:

The current meter I2 should read about 
0.38A charging current

Step 9:

Reduce the voltage at PS3 to 2.0V for 
trickle charge current. Repeat Step 8. The 
reading should be around 80mA

Step 10: Slowly reduce the electronic load current 

until the green LED turns off, the current 
meter I2 should read about 55mA EOC 
current

Step 11: Insert a jumper shunt on JP5 and repeat 

Step 10. The current meter I2 should read 
75mA EOC current

Application Note 1260

Summary of Contents for ISL9214AEVAL1Z

Page 1: ...uggesting the Space Saving Advantage of the Typical Components Assembly Both Inputs Accept 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 5x2 5 Square Inches Board Size Handy for Evaluation ...

Page 2: ...s 8 9 and 10 respectively Step 12 Slowly reduce the DC electronic load current until the green LED turns off The current meter I2 should read about 47mA EOC current Step 13 Insert a jumper shunt on JP5 and repeat Step 12 the current meter I2 should read 93mA EOC current For USB Input Step 1 Connect a 5V supply PS2 to USB with the current limit set at 0 7A Step 2 Connect a 3 7V supply PS3 to BAT J3...

Page 3: ... is driven to logic HIGH which disables the charger JP4 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 JP5 Parallels an additional 11 8k resistor to the IMIN pin total RIMIN 5 9k such that the End of Charge Current will be increased to 93mA RIMIN is 11 8k and the EOC current is 46 5mA without the shunt...

Page 4: ... installed Sets CRDL and USB EOC current to 93mA JP6 Shunt installed Connects BAT to J3 JP7 Shunt installed Sets CRDL charging current to 0 575A if shunt on JP7 is not installed JP8 Shunt installed Sets CRDL charging current to 1 04A if shunt on JP7 is also installed R5 23 7k CRDL 1 USB 2 PPR 3 CHG 4 EN 5 IMIN 6 USBON 7 GND 8 ICDL 9 BAT 10 U1 ISL9214 C3 1µF C2 4 7µF 35V C1 4 7µF 35V C5 0 1µF C6 0 ...

Page 5: ... 1 C7 10µF 6 3V Tantalum 1206 ECS T0JY106R Panasonic 13 1 C8 47µF 6 3V X5R Ceramic 1210 ECJ 4YB0J476M Panasonic 14 1 C3 1µF 25V X5R Ceramic 0805 ECJ 2FB1E105K Panasonic 15 3 C4 C5 C6 0 01µF 50V X7R Ceramic 0402 C0402C103K5RACTU Kemet 16 2 J1 J3 2 54mm Center Header 2 CKT 22 11 2022 Molex 17 3 CRDL USB VBAT Test point Red 5010 Keystone 18 6 PPR CHG EN IMIN USBON Test point Yellow 5014 Keystone ICDL...

Page 6: ...6 AN1260 1 January 26 2010 PCB Layout FIGURE 3 SILK LAYER FIGURE 4 TOP LAYER Application Note 1260 ...

Page 7: ... 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 AN1260 1 January 26 2010 FIGURE 5 BOTTOM LAYER PCB Layout Continued Application Note 1260 ...

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