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ISL9203R5220 Datasheet

Li-ion/Li Polymer Battery Charger

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ISL9203R5220 pdf
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Data Sheet
ISL9203R5220
January 3, 2006
FN9242.1
Li-ion/Li Polymer Battery Charger
Features
The ISL9203R5220 is an integrated single-cell Li-ion or
Li-polymer battery charger capable of operating with an input
voltage as low as 2.4V. This charger is designed to work with
various types of AC adapters.
The ISL9203R5220 operates as a linear charger when the
AC adapter is a voltage source. The battery is charged in a
CC/CV (constant current/constant voltage) profile. The
charge current is programmable with an external resistor up
to 1.5A. The ISL9203R5220 can also work with a current-
limited adapter to minimize the thermal dissipation, in which
case the ISL9203R5220 combines the benefits of both a
linear charger and a pulse charger.
The ISL9203R5220 features charge current thermal
foldback to guarantee safe operation when the printed circuit
board is space limited for thermal dissipation. Additional
features include preconditioning of an over-discharged
battery and thermally enhanced DFN package.
• Complete Charger for Single-Cell Li-ion Batteries
• Very Low Thermal Dissipation
• Integrated Pass Element and Current Sensor
• No External Blocking Diode Required
• 1% Voltage Accuracy
• Programmable Current Limit up to 1.5A
• Charge Current Thermal Foldback
• Accepts Multiple Types of Adapters
• Guaranteed operation down to VIN = 2.65V after start up
• Ambient Temperature Range: -20°C to 70°C
• Thermally-Enhanced DFN Packages
• Pb-Free Plus Anneal Available (RoHS Compliant)
Applications
Typical Application Circuit
• Handheld Devices including Medical Handhelds
5V
Input
VIN VBAT
C1 ISL9203
Floating
to Enable
VSEN
STATUS
EN
V2P8
IREF
TIME GND
CTIME
C2
C3
RIREF
• PDAs, Cell Phones and Smart Phones
• Portable Instruments, MP3 Players
• Self-Charging Battery Packs
• Stand-Alone Chargers
• USB Bus-Powered Chargers
Related Literature
• Technical Brief TB363 “Guidelines for Handling and
Processing Moisture Sensitive Surface Mount Devices
(SMDs)”
• Technical Brief TB379 “Thermal Characterization of
Packaged Semiconductor Devices”
• Technical Brief TB389 “PCB Land Pattern Design and
Surface Mount Guidelines for QFN Packages”
Ordering Information
PART NUMBER
(Note)
ISL9203CRZR5220
PART
TEMP.
PACKAGE PKG
MARKING RANGE (°C) (Pb-free) DWG. #
03CZ
-20 to 70 10 Ld 3x3 DFN L10.3x3
Pinout
ISL9203R5220
(3x3 DFN)
TOP VIEW
ISL9203CRZ-TR5220
10 Ld 3x3 DFN 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. 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.
VIN 1
NC 2
STATUS 3
TIME 4
GND 5
10 VBAT
9 VSEN
8 IREF
7 V2P8
6 EN
1
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. 2005, 2006. All Rights Reserved.
All other trademarks mentioned are the property of their respective owners.


Intersil Electronic Components Datasheet

ISL9203R5220 Datasheet

Li-ion/Li Polymer Battery Charger

No Preview Available !

ISL9203R5220 pdf
ISL9203R5220
Absolute Maximum Ratings
Supply Voltage (VIN) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3 to 7V
Output Pin Voltage (BAT, VSEN, V2P8). . . . . . . . . . . . . -0.3 to 5.5V
Signal Input Voltage (TIME, IREF). . . . . . . . . . . . . . . . . -0.3 to 3.2V
Output Pin Voltage (STATUS) . . . . . . . . . . . . . . . . . . . . . . -0.3 to 7V
Charge Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.6A
ESD Rating
Human Body Model (Per MIL-STD-883 Method 3015.7) . . .4500V
Machine Model (Per EIAJ ED-4701 Method C-111) . . . . . . . .200V
Thermal Information
Thermal Resistance (Typical, Notes 1, 2) θJA (°C/W) θJC (°C/W)
3x3 DFN Package . . . . . . . . . . . . . . . .
46
4
Maximum Junction Temperature (Plastic Package) . . . . . . . . 150°C
Maximum Storage Temperature Range . . . . . . . . . . . -65°C to 150°C
Maximum Lead Temperature (Soldering 10s) . . . . . . . . . . . . . 300°C
Recommended Operating Conditions
Ambient Temperature Range . . . . . . . . . . . . . . . . . . . .-20°C to 70°C
Supply Voltage, VIN . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.3V to 6.5V
CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the
device at these or any other conditions above those indicated in the operational sections of this specification is not implied.
NOTES:
1. θJA is measured in free air with the component mounted on a high effective thermal conductivity test board with “direct attach” features. See
Tech Brief TB379.
2. θJC, “case temperature” location is at the center of the exposed metal pad on the package underside. See Tech Brief TB379.
Electrical Specifications
Typical values are tested at VIN = 5V and 25°C Ambient Temperature, maximum and minimum values are
guaranteed over 0°C to 70°C Ambient Temperature with a supply voltage in the range of 4.3V to 6.5V, unless
otherwise noted.
PARAMETER
SYMBOL
TEST CONDITIONS
MIN TYP MAX UNITS
POWER-ON RESET
Rising VIN Threshold
3.0 3.4 4.0
V
Falling VIN Threshold
2.3 2.4 2.65 V
STANDBY CURRENT
VBAT Pin Sink Current
VIN Pin Supply Current
VIN Pin Supply Current
VOLTAGE REGULATION
ISTANDBY
IVIN
IVIN
VIN floating or EN = LOW
VBAT floating and EN pulled low
VBAT floating and EN floating
- - 3.0 µA
- 30 250 µA
- 1 2 mA
Output Voltage
Dropout Voltage
VCH
VBAT = 3.7V, Charge current = 1A
4.158 4.20 4.242
- 320 550
V
mV
CHARGE CURRENT
Constant Charge Current (Note 3)
Constant Charge Current
Trickle Charge Current
Trickle Charge Current
End-of-Charge Threshold
End-of-Charge Threshold
RECHARGE THRESHOLD
ICHARGE
ICHARGE
ITRICKLE
ITRICKLE
IMIN
IMIN
RIREF = 80k, VBAT = 3.7V
RIREF = 1.21M, VBAT = 3.7V
RIREF = 80k, VBAT = 2.0V
RIREF = 1.21M, VBAT = 2.0V
RIREF = 80k
RIREF = 1.21M
0.9 1.0 1.1
A
33 66 100 mA
85 110 135 mA
2 7 15 mA
85 110 135 mA
2 - 30 mA
Recharge Voltage Threshold
TRICKLE CHARGE THRESHOLD
VRECHRG
3.85 4.00 4.10
V
Trickle Charge Threshold Voltage
VMIN
2.7 2.8 3.0
V
2 FN9242.1
January 3, 2006


Part Number ISL9203R5220
Description Li-ion/Li Polymer Battery Charger
Maker Intersil Corporation
Total Page 14 Pages
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