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Application Note 1260

ISL9214AEVAL1Z Evaluation Board Application 

Manual

Description

The ISL9214AEVAL1Z is an evaluation tool for the 
ISL9214A 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 the different charging conditions 
and can be used to make other necessary connections, 
such as current measurement.

The ISL9214A is a dual input, fully integrated single-cell 
Li-ion battery charger. The ISL9214A charger accepts 
two input sources: one from a USB port and the other 
from a desktop cradle. Both inputs accept 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 components assembled in the center square 
constitute a complete charger, indicating the space 
saving advantage of the typical ISL9214A installation in 
space-limited applications.

Features

• A Complete Evaluation Platform for the ISL9214A 

Charger

• The Center Square Suggesting 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

• Thermal Vias in the Thermal Pad Similar To 

Customers’ Thermally Enhanced Environment

• On-Board LEDs for Input PPR and CHG State 

Indication

• Pb-Free (RoHS Compliant)

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
• Oscilloscope
• Cables and wires

Ordering Information

PART #

DESCRIPTION

ISL9214AEVAL1Z

Evaluation Board for ISL9214A

Pin Configuration

ISL9214A 

10 LD DFN

TOP VIEW

2

3

4

1

5

9

8

7

10

6

BAT

ICDL

GND

USBON

IMIN

CRDL

USB

PPR

CHG

EN

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, 2010. All Rights Reserved

All other trademarks mentioned are the property of their respective owners.

January 26, 2010
AN1260.1

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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