ISL9214AIRZ Intersil, ISL9214AIRZ Datasheet

ISL9214AIRZ

Manufacturer Part Number

ISL9214AIRZ

Description

IC BATTERY CHRGR LI-ION 10-DFN

Manufacturer

Intersil

Datasheet

1.ISL9214AIRZ.pdf (11 pages)

Specifications of ISL9214AIRZ

Function

Charge Management

Battery Type

Lithium-Ion (Li-Ion), Lithium-Polymer (Li-Pol)

Voltage - Supply

4.3 V ~ 24 V

Operating Temperature

-40°C ~ 85°C

Mounting Type

Surface Mount

Package / Case

10-VFDFN Exposed Pad

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

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Li-ion/Li-Polymer Battery Charger

Accepting Two Power Sources

The ISL9214A is a fully integrated low-cost single-cell Li-ion

or Li-polymer battery charger. The charger accepts two

power inputs, normally one from a USB (Universal Serial

Bus) port and the other from a desktop cradle. The

ISL9214A is an ideal charger for smart handheld devices

that need to communicate with a personal computer via

USB.

The ISL9214A features 28V maximum voltages for both the

cradle and the USB inputs. Due to the 28V rated inputs,

low-cost, large output tolerance adapters can be used safely.

When both inputs are powered, the cradle input is used to

charge the battery. The charge current is programmable for

the cradle input with a small resistor. The end-of-charge

current is also programmable by another external resistor.

The charger incorporates Thermaguard™ which protects the

IC against over-temperature. If the die temperature rises

above a typical value of +125°C, a thermal foldback function

reduces the charge current automatically to prevent further

temperature rise. The charger has two indication pins. The

PPR (power present) pin outputs an open-drain logic LOW

when either the cradle or the USB input power is attached.

The CHG (charge) pin is also an open-drain output that

indicates a logic LOW when the charge current is above a

minimum current level. When the charge current is below the

preset minimum current, the CHG pin will indicate a logic

HIGH signal. This status is latched and will be reset under

one of the following events:

Ordering Information

ISL9214AIRZ*

*Add “-T” suffix for tape and reel. Please refer to TB347 for details on

reel specifications.

NOTE: These Intersil Pb-free plastic packaged products employ

special Pb-free material sets; molding compounds/die attach materials

and 100% matte tin plate PLUS ANNEAL - e3 termination finish, which

is RoHS compliant and compatible with both SnPb and Pb-free

soldering operations. Intersil Pb-free products are MSL classified at

Pb-free peak reflow temperatures that meet or exceed the Pb-free

requirements of IPC/JEDEC J STD-020.

1. The part is disabled and re-enabled

2. The selected input source has been removed and re-

3. The USBON turns LOW

4. The BAT pin voltage falls below the recharge threshold

NUMBER

applied

(~3.9V).

(Note)

PART

214A

MARKING

PART

RANGE (°C)

-40 to +85

TEMP.

Data Sheet

10 Ld 3x3 DFN L10.3x3C

PACKAGE

(Pb-Free)

DWG. #

1-888-INTERSIL or 1-888-468-3774

PKG.

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

Features

• Complete Charger for Single-Cell Li-ion/Polymer Batteries

• Dual Input Power Sources for Cradle and USB

• Low Component Count

• Integrated Pass Elements

• Fixed 380mA USB Charge Current

• Programmable Cradle Charge Current

• Charge Current Thermaguard™ for Thermal

• 28V Maximum Voltages for Cradle and USB Inputs

• Adapter Presence and Charge Indications

• Less than 0.5µA Leakage Current Off the Battery When

• Programmable End-of-Charge Current

• Ambient Temperature Range: -40°C to +85°C

• No External Blocking Diode Required

Applications

• Smart Handheld Devices

• Cell Phones, PDAs, MP3 Players

• Digital Still Cameras

• Handheld Test Equipment

Related Literature

• Technical Brief TB363 “Guidelines for Handling and

• Technical Brief TB389 “PCB Land Pattern Design and

Pinout

Protection

No Input Power Attached

Processing Moisture Sensitive Surface Mount Devices

(SMDs)”

Surface Mount Guidelines for QFN Packages”

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

May 5, 2008

Intersil (and design) is a registered trademark of Intersil Americas Inc.

CRDL

CHG

USB

PPR

(10 LD DFN)

TOP VIEW

ISL9214A

BAT

ICDL

GND

USBON

IMIN

FN6698.0

Related parts for ISL9214AIRZ

ISL9214AIRZ Summary of contents

Page 1

... NUMBER PART TEMP. (Note) MARKING RANGE (°C) ISL9214AIRZ* 214A -40 to +85 *Add “-T” suffix for tape and reel. Please refer to TB347 for details on reel specifications. NOTE: These Intersil Pb-free plastic packaged products employ special Pb-free material sets; molding compounds/die attach materials ...

Page 2

Block Diagram CRDL USB TEMP MONITOR ICDL REFERENCE CURRENT CONTROL IMIN CPPR PPR CHG 2 ISL9214A CPPR I R USB CRDL BAT LBAT CONTROL BAT + REF ENA EN GND USBON May 5, 2008 FN6698.0 ...

Page 3

Typical Applications A Simple Charger Accepting Power from Both a USB Port and a Desktop Cradle TO CRADLE CONNECTOR TO USB CONNECTOR IMIN A Simple Charger with Programmable Charge Current and Wide Input Voltage Range ...

Page 4

... ISL9214A Thermal Information Thermal Resistance DFN Package (Notes Maximum Junction Temperature (Plastic Package +150°C Maximum Storage Temperature Range . . . . . . . . . .-65°C to +150°C Pb-free reflow profile . . . . . . . . . . . . . . . . . . . . . . . . . .see link below http://www.intersil.com/pbfree/Pb-FreeReflow.asp SYMBOL TEST CONDITIONS 4.0V, use CHG pin to indicate the OS BAT comparator output (Note 3) ...

Page 5

Electrical Specifications Typical values are tested at USB = CRDL = 5V and +25°C Ambient Temperature, maximum and minimum values are established over the recommended operating conditions, unless otherwise noted. (Continued) PARAMETER RECHARGE THRESHOLD Recharge Threshold Voltage INTERNAL TEMPERATURE MONITORING ...

Page 6

Typical Operating Performance 600 550 CRDL, R ICDL 500 450 400 USB 350 300 250 200 2.5 2.8 3.0 3.3 V (V) BAT FIGURE 3. CHARGE CURRENT vs OUTPUT VOLTAGE 2.0 1.8 1.6 1.4 1.2 1.0 0.8 0.6 0.4 USB ...

Page 7

Typical Operating Performance 800 I = 0mA OUT 700 600 ENABLED ENABLED 500 400 I = 0mA OUT 300 200 100 TEMPERATURE (°C) FIGURE 9. CRADLE INPUT QUIESCENT CURRENT vs INPUT VOLTAGE Functional Pin Description ...

Page 8

The cradle charge current should be programmed equal or higher than the USB current; otherwise, the ICDL pin voltage will be higher than 1.22V during the constant-current mode when the USB charger is working. The charger still works properly but ...

Page 9

TRICKLE CC 4.2V CHARGE I VOLTAGE REF CHARGE CURRENT 2. MIN 100 I REF CHG INDICATION FIGURE 11. TYPICAL CHARGE CYCLE Figure 11 shows the typical charge profile including the end-of-charge event. Power Presence Indication When either the ...

Page 10

V < V CRDL POR V < V USB POR V < V CRDL POR V > V USB POR POR USB INPUT SELECTED CRDL INPUT SELECTED CHARGER: OFF PPR: ON CHG: OFF SOURCE SELECTED CHARGER DISABLED ...

Page 11

... Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result from its use ...

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