Intersil ISL9214AEVAL1Z Applications Manual

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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.

Ordering Information

PART #
ISL9214AEVAL1Z
Evaluation Board for ISL9214A
Pin Configuration
ISL9214A
10 LD DFN
TOP VIEW
CRDL
1
USB
2
3
PPR
4
CHG
5
EN
January 26, 2010
AN1260.1
DESCRIPTION
BAT
10
ICDL
9
GND
8
USBON
7
IMIN
6
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774

Application Note 1260

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
|
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.

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Summary of Contents for Intersil ISL9214AEVAL1Z

  • Page 1: Application Note

    January 26, 2010 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. AN1260.1 Copyright Intersil Americas Inc. 2007, 2010. All Rights Reserved...
  • Page 2 Application Note 1260 Quick Setup Guide (Refer to Figure 1) DO NOT APPLY POWER UNTIL STEP 6 For USB Input: For Cradle Input: Step 1: Connect a 5V supply PS1 to CRDL input Step 1: Connect a 5V supply PS2 to USB with the (J1, upper +) with the current limit set at current limit set at 0.7A 1.3A...
  • Page 3 Application Note 1260 E-LOAD FIGURE 1. CONNECTION OF INSTRUMENTS Description of Jumper Settings Current will be increased to 93mA (R is 11.8k and IMIN the EOC current is 46.5mA without the shunt). JP1 - A shunt installed on JP1 connects the input source from connector J1 to the circuit if input current JP6 - A shunt installed on JP6 connects the BAT pin to measurement is not needed.
  • Page 4: Board Design

    Application Note 1260 TABLE 1. JUMPER SETTING SUMMARY JUMPER POSITION FUNCTION Shunt installed Connects input source at J1 to CRDL pin Shunt installed Connects input source from USB port connector to USB pin Shunt on Disable Charger disabled Shunt on Enable Charger enabled Shunt not installed Charger enabled...
  • Page 5 Application Note 1260 ISL9214AEVAL1Z Bill of Materials ITEM QTY REFERENCE PART DESCRIPTION PCB FOOTPRINT PART NUMBER VENDOR ISL9214A Charger 3x3 DFN ISL9214A Intersil 3.3k, 5%, SMD Resistor 0805 ERJ-6GEYJ332V Panasonic R2, R3 470Ω, 5%, SMD Resistor 0805 ERJ-6GEYJ471V Panasonic 11.8k, 1%, SMD Resistor...
  • Page 6: Pcb Layout

    Application Note 1260 PCB Layout FIGURE 3. SILK LAYER FIGURE 4. TOP LAYER AN1260.1 January 26, 2010...
  • Page 7 FIGURE 5. BOTTOM LAYER 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.

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