ISL9220IRTZ-T Intersil, ISL9220IRTZ-T Datasheet

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ISL9220IRTZ-T

Manufacturer Part Number
ISL9220IRTZ-T
Description
IC BATT CHRGR LIION 1CELL 20TQFN
Manufacturer
Intersil
Datasheet

Specifications of ISL9220IRTZ-T

Function
Charge Management
Battery Type
Lithium-Ion (Li-Ion), Lithium-Polymer (Li-Pol)
Voltage - Supply
4.5 V ~ 14 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
*
Package / Case
*
Lead Free Status / RoHS Status
Lead free / RoHS Compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ISL9220IRTZ-T
Manufacturer:
Intersil
Quantity:
14 400
Part Number:
ISL9220IRTZ-T
Manufacturer:
INTERSIL
Quantity:
20 000
Part Number:
ISL9220IRTZ-T7A
Manufacturer:
Intersil
Quantity:
15
Switching Charger for 1-Cell and 2-Cell Li-ion
Batteries
ISL9220, ISL9220A
The ISL9220, ISL9220A is a cost-effective and versatile
battery charger for 1-cell and 2-cell Li-ion and Li-Polymer
based portable applications.
The device features synchronous PWM technology,
maximizing power efficiency, thus minimizing charge
time and heat. The 1.2MHz switching frequency allows
use of small external inductors and capacitors.
A simple charge current programming method is
provided. External resistors program the fast charge and
end-of-charge currents.
The two status outputs can be used to drive LEDs, or can
be connected to host processor.
A programmable charge timer provides the ability to
detect defective batteries, and provides a secondary
method of detecting charge termination.
A thermistor interface is provided for battery presence
detection, and for temperature qualified charging
conditions.
Additional features include preconditioning of an
over-discharged battery, automatic recharge, and
thermally enhanced QFN package.
Applications*
• PDAs and Smart Phones
• MP3 and Portable Media Players
• Handheld GPS Devices
• Digital Still Cameras
• Industrial Handheld Scanners
Pin Configuration
February 8, 2011
FN6936.2
(see page 14)
1
STAT2
AGND
ISET1
ISET2
1-888-INTERSIL or 1-888-468-3774 | Copyright Intersil Americas Inc. 2010, 2011. All Rights Reserved
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
EN
1
2
3
4
5
ISL9220, ISL9220A
Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries.
(20 LD TQFN)
TOP VIEW
(AGND)
PAD
Features
• Highly Integrated Battery Charger IC
• Charges 1- and 2-Cell Li-ion or Li-Polymer Batteries
• Up to 2A Charge Current
• Synchronous Buck Topology with Integrated Power FETs
• 1.2MHz Switching Frequency
• 0.5% Charge Voltage Accuracy
• Programmable Input Current Limit with One External
• Thermistor Interface for Battery Detection and
• Two Status Outputs
• Programmable Charge Safety Timer
• Short-Circuit and Thermal Protection
• Small 4mmx4mm TQFN Package
• -40°C to +85°C Operating Temperature Range
Related Literature*
• Technical Brief
• Technical Brief
• Technical Brief
Resistor
Temperature Qualified Charging
Processing Moisture Sensitive Surface Mount Devices
(SMDs)”
Packaged Semiconductor Devices”
Surface Mount Guidelines for QFN Packages”
All other trademarks mentioned are the property of their respective owners.
15
14
13
12
11
PGND
SW
SW
VHI
VIN
TB363
TB379
TB389
“PCB Land Pattern Design and
“Guidelines for Handling and
“Thermal Characterization of
(see page 14)

Related parts for ISL9220IRTZ-T

ISL9220IRTZ-T Summary of contents

Page 1

... CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. 1-888-INTERSIL or 1-888-468-3774 | Copyright Intersil Americas Inc. 2010, 2011. All Rights Reserved Intersil (and design trademark owned by Intersil Corporation or one of its subsidiaries. All other trademarks mentioned are the property of their respective owners. ...

Page 2

... Exposed pad. Connect to GND electrically. Thermally, connect as much as possible copper to this pad either on the component layer or other layers through thermal vias to enhance the thermal performance. Ordering Information PART NUMBER (Notes PART MARKING ISL9220IRTZ-T 92 20IRTZ ISL9220AIRTZ-T 922 0AIRTZ ISL9220EVAL1Z Evaluation Board ISL9220AEVAL1Z ...

Page 3

... QFN 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 Recommended Operating Conditions Ambient Temperature Range . . . . . . . . . . . -40°C to +85°C Supply Voltage, VIN ISL9220 . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.5V to 14V ISL9220A ...

Page 4

Electrical Specifications Typical specifications are measured at the following conditions PARAMETER Level 1 Pre-Charge Current Range (Linear mode) Level 2 Pre-Charge Current Accuracy Level 1 Pre-Charge Threshold Voltage Level 2 Pre-Charge Threshold Voltage RECHARGE THRESHOLD Recharge Voltage Threshold ...

Page 5

Electrical Specifications Typical specifications are measured at the following conditions PARAMETER INPUT CURRENT SENSE AMPLIFIER Input Bias Current at CSIP and CSIN, Pin (Charger Enabled) Input Current Limit Threshold OUTPUT CURRENT SENSE AMPLIFIER Input Bias Current at ISNS ...

Page 6

Typical Applications Diagrams 1-Cell Application 2-Cell Application 6 ISL9220, ISL9220A FN6936.2 February 8, 2011 ...

Page 7

Block Diagram 7 ISL9220, ISL9220A FN6936.2 February 8, 2011 ...

Page 8

Typical Operating Conditions CH4 = INDUCTOR CURRENT (500mA/DIV) CH1 = SW(5V/DIV) FIGURE 1. PWM WAVEFORM IN CC MODE 95 V BAT BAT BAT BAT 0.2 ...

Page 9

Theory of Operation The ISL9220, ISL9220A is an integrated charger optimized for charging 1-cell and 2-cell Li-ion or Li-polymer batteries. It charges a battery with constant current (CC) and constant voltage (CV) profile. The typical charge profile is illustrated in ...

Page 10

I 50mA = PCHG1 If battery voltage is between the level 1 pre-charge voltage (V ) and level 2 pre-charge voltage PCHG1 (V ), the charger operates in trickle mode, and uses PCHG2 the precharge current limit. This precharge current ...

Page 11

STAT1 and STAT2 are configured to indicate various charging conditions as given in Table 1. A fault status is triggered under one of these conditions > VOUT_OVP threshold BAT 2. Timeout occurs before the EOC current has been ...

Page 12

The input capacitor should be placed as close as possible to the VIN pin. The ground of the input and output capacitors should be connected as close as possible as well. In addition, a solid ground plane is helpful for ...

Page 13

ISL9220, ISL9220A FIGURE 9. CHARGING FLOW CHART 13 FN6936.2 February 8, 2011 ...

Page 14

... 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. No license is granted by implication or otherwise under any patent or patent rights of Intersil or its subsidiaries ...

Page 15

Package Outline Drawing L20.4x4E 20 LEAD THIN QUAD FLAT NO-LEAD PLASTIC PACKAGE Rev 0, 4/10 4.00 6 PIN 1 INDEX AREA (4X) 0.15 TOP VIEW (3.8 TYP TYPICAL RECOMMENDED LAND PATTERN 15 ISL9220, ISL9220A 16X ...

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