ISL9205IRZ Intersil, ISL9205IRZ Datasheet

ISL9205IRZ

Manufacturer Part Number

ISL9205IRZ

Description

IC CHRGR LI-ION SGL 4.2V 16-QFN

Manufacturer

Intersil

Datasheet

1.ISL9205CIRZ.pdf (14 pages)

Specifications of ISL9205IRZ

Function

Charge Management

Battery Type

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

Voltage - Supply

4.25 V ~ 6.5 V

Operating Temperature

-40°C ~ 85°C

Mounting Type

Surface Mount

Package / Case

16-VQFN Exposed Pad, 16-HVQFN, 16-SQFN, 16-DHVQFN

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

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Li-ion Battery Charger

The ISL9205 is an integrated single-cell Li-ion or Li-polymer

charger capable of operating at an input voltage as low as

2.5V. The low operating voltage allows the charger to work

with a variety of AC adapters.

The ISL9205 operates as a linear charger when the AC

adapter is a voltage source. The battery is charged in a

standard Li-ion charge profile, i.e. a constant current phase

followed be a constant voltage phase (CC/CV). The charge

current during the constant current phase is determined by

the external resistor connected to the I

adapter output is a current-limited voltage source and the

current limit is smaller than the programmed constant

current of the IC, the ISL9205 operates as a pulse charger

where the charge current is determined by the current limit of

the AC adapter during the constant current phase. The

ISL9205 operates in a linear mode during the constant

voltage phase in both adapter cases.

The ISL9205 incorporates Thermaguard

IC against over temperature. If the die temperature rises

above a typical value of +100°C , the thermal foldback

function reduces the charge current to prevent further

temperature rise. The ISL9205 includes an external

temperature monitoring function (not available in some

package options). A negative temperature coefficient (NTC)

thermistor is connected between the TEMP pin and GND to

monitor the battery or ambient temperature. The ISL9205

also includes a timer to set the time reference for various

charge time limits. The timer is programmable with an

external capacitor. Two logic inputs and two open-drain logic

outputs are available for controlling the charger and

indicating the charger status. The EN pin enables the

charger, TOEN pin (available in ISL9205) enables the

timeout function so that the charge is terminated when the

preset time limits have been reached. The FAULT pin is an

open-drain output which turns on when a fault condition is

encountered. The STATUS pin is also an open-drain output

which turns on when the charger is delivering current.

Data Sheet

REF

™

which protects the

pin. When the

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

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

Features

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

• Integrated Pass Element and Current Sensor

• No External Blocking Diode Required

• Low Component Count and Cost

• 25mV Voltage Accuracy Over-Temperature and Input

• 15mV Voltage Accuracy at Room Temperature

• Programmable Charge Current

• Programmable End-of-Charge Current (ISL9205)

• Charge Current Thermal Foldback for Thermal

• Trickle Charge for Fully Discharged Batteries

• Power Presence and Charge Indications

• NTC Interface (not available in some package options)

• Less than 3µA Leakage Current off the Battery when No

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

• DFN, QFN Packages

• Pb-Free (RoHS Compliant)

Applications

• Mobile Phones

• Blue-Tooth Devices

• PDAs

• MP3 Players

• Stand-Alone Cradle or Travel Chargers

• Other Handheld Devices

Voltage Range

Protection (Thermaguard

Input Power Attached or Charger Disabled

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

July 28, 2010

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

™

)

ISL9205

FN9252.2

Related parts for ISL9205IRZ

ISL9205IRZ Summary of contents

Page 1

... Other Handheld Devices CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. 1-888-INTERSIL or 1-888-468-3774 Thermaguard is a 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. ISL9205 July 28, 2010 FN9252 ...

Page 2

... Ordering Information PART NUMBER* PART TEMP. (Note) MARKING RANGE (°C) ISL9205IRZ DLBA -40 to +85 ISL9205AIRZ DLCA -40 to +85 ISL9205BIRZ DLDA -40 to +85 ISL9205CIRZ DLEA -40 to +85 ISL9205DIRZ DLFA -40 to +85 *Add “-T” suffix for tape and reel. NOTE: Intersil Pb-free plus anneal products employ special Pb-free material sets; molding compounds/die attach materials and 100% matte tin plate termination finish, which are RoHS compliant and compatible with both SnPb and Pb-free soldering operations ...

Page 3

... D 1 For 3x3 DFN Package Option 5V WALL ADAPTER 1µ 1kΩ 1µF 3 ISL9205 VIN VBAT VIN VBAT 1kΩ VIN R 2 ISL9205IRZ D 2 VSEN FAULT TEMP STATUS IREF TOEN IMIN EN V2P8 TIME GND 1µ TIME 15nF VIN VBAT 1kΩ R ISL9205AIRZ 2 VSEN D 2 FAULT IREF ...

Page 4

Pin Description VIN (Pin 1, 15, 16 for ISL9205; Pin 1 for ISL9205A, ISL9205B, ISL9205C and ISL9205D) VIN is the input power source. Connect to a wall adapter. FAULT (Pin 2) FAULT is an open-drain output indicating fault status. This ...

Page 5

Absolute Maximum Ratings Voltage Ratings for All Pins . . . . . . . . . . . . . . . . . . . . . . . -0. Charge Current . . . . ...

Page 6

Electrical Specifications Typical Values Are Tested at V Values Are Guaranteed Under the Recommended Operating Supply Voltage Range and Ambient Temperature Range, Unless Otherwise Noted. (Continued) PARAMETER CHARGE THRESHOLDS Preconditioning Charge Threshold Voltage Preconditioning Voltage Hysteresis Recharge Threshold Recharge Threshold ...

Page 7

Typical Operating Performance 4.210 4.206 4.202 4.198 4.194 4.190 0.0 0.2 0.4 CHARGE CURRENT (mA) FIGURE 1. CHARGER OUTPUT VOLTAGE vs CHARGE CURRENT 4.30 IBAT = 50mA 4.24 4.18 4.12 4.06 4.00 4.2 4.5 4.8 5.1 V (V) IN FIGURE ...

Page 8

Typical Operating Performance 2.90 2.90 2.88 2.86 2.84 2.82 2.80 3.5 4.1 4.7 V (V) IN FIGURE 7. V2P8 OUTPUT vs INPUT VOLTAGE 1.0 0.9 0.8 0.7 0.6 0 TEMPERATURE (°C) FIGURE TEMPERATURE ...

Page 9

Functional Block Diagram VIN C1 TEMPERATURE MONITORING R IREF IREF CURRENT REFERENCES I MIN = IR/10 I SEN EN TEMP TIME GND Theory of Operation The ISL9205 is an integrated charger for single-cell Li-ion or Li-polymer batteries. The ISL9205 is ...

Page 10

During the constant voltage phase, the charge current reduces gradually as the cell voltage rises. End-of-Charge and Recharge As the charge current reaches the EOC (end-of-charge) current threshold during the constant voltage phase, the STATUS pin open-drain FET is turned ...

Page 11

Indications The ISL9205 has two open-drain status indication pins. These two pins are FAULT and STATUS. These pins require an external pull-up resistor to function properly. The V2P8 pin can be used as the presence of AC adapter. Charger Disable ...

Page 12

... 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 ...

Page 13

Package Outline Drawing L16.3x3B 16 LEAD QUAD FLAT NO-LEAD PLASTIC PACKAGE Rev 1, 4/07 3.00 6 PIN 1 INDEX AREA (4X) 0.15 TOP VIEW ( 2. 80 TYP ) ( TYPICAL RECOMMENDED LAND PATTERN 13 ISL9205 A ...

Page 14

Package Outline Drawing L10.3x3 10 LEAD DUAL FLAT PACKAGE (DFN) Rev 6, 09/09 3.00 6 PIN 1 INDEX AREA (4X) 0.10 TOP VIEW PACKAGE OUTLINE (10 x 0.55) (10x 0.23) (8x 0.50) 1.60 TYPICAL RECOMMENDED LAND PATTERN 14 ISL9205 A ...

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