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ISL9203ACRZ

P1-P3P4-P6P7-P9P10-P12P13-P14
1
®
FN6430.0
ISL9203A
Li-ion/Li Polymer Battery Charger
The ISL9203A 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 ISL9203A 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 ISL9203A can also work with a current-limited
adapter to minimize the thermal dissipation, in which case
the ISL9203A combines the benefits of both a linear charger
and a pulse charger.
The ISL9203A 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.
Typical Application Circuit
Features
• 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 V
IN
= 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
• Handheld Devices including Medical Handhelds
• 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)
PART
MARKING
TEMP.
RANGE
(°C)
PACKAGE
(Pb-free)
PKG
DWG. #
ISL9203ACRZ 03ACZ -20 to +70 10 Ld 3x3 DFN L10.3x3
ISL9203ACRZ-T 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.
VBATVIN
5V
INPUT
ISL9203A
C
1
V2P8
EN
GND
IREF
VSEN
STATUS
TIME
C
TIME
FLOATING
TO ENABLE
C
2
C
3
R
IREF
R
1
Pinout
ISL9203A
(10 LD 3x3 DFN)
TOP VIEW
VIN
STATUS
TIME
GND
VBAT
VSEN
IREF
V2P8
EN
2
3
4
1
5
9
8
7
10
6
NC
Data Sheet February 14, 2007
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. 2007. All Rights Reserved.
All other trademarks mentioned are the property of their respective owners.
2
FN6430.0
February 14, 2007
Absolute Maximum Ratings Thermal Information
Supply Voltage (VIN) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3 to 7V
Output Pin Voltage (BAT, VSEN, V2P8). . . . . . . . . . . . -0.3V to 5.5V
Signal Input Voltage (TIME, IREF). . . . . . . . . . . . . . . . -0.3V to 3.2V
Output Pin Voltage (STATUS) . . . . . . . . . . . . . . . . . . . . . -0.3V 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
Recommended Operating Conditions
Ambient Temperature Range. . . . . . . . . . . . . . . . . . .-20°C to +70°C
Supply Voltage, VIN. . . . . . . . . . . . . . . . . . . . . . . . . . . 4.3V to 6.5V
Thermal Resistance (Typical, Notes 1, 2) θ
JA
(°C/W) θ
JC
(°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
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.
+150°C max junction temperature is intended for short periods of time to prevent shortening the lifetime. Operation close to +150°C junction may trigger the shutdown of
the device even before +150°C, since this number is specified as typical.
NOTES:
1. θ
JA
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. θ
JC
, “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 V
IN
= 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 I
STANDBY
VIN floating or EN = LOW - - 3.0 µA
VIN Pin Supply Current I
VIN
VBAT floating and EN pulled low - 30 250 µA
VIN Pin Supply Current I
VIN
VBAT floating and EN floating - 1 2 mA
VOLTAGE REGULATION
Output Voltage V
CH
4.158 4.20 4.242 V
Dropout Voltage VBAT = 3.7V, Charge current = 1A - 320 550 mV
CHARGE CURRENT
Constant Charge Current (Note 3) I
CHARGE
R
IREF
= 80kΩ, V
BAT
= 3.7V 0.9 1.0 1.1 A
Constant Charge Current I
CHARGE
R
IREF
= 1.21MΩ, V
BAT
= 3.7V 33 66 100 mA
Trickle Charge Current I
TRICKLE
R
IREF
= 80kΩ, V
BAT
= 2.0V 85 110 135 mA
Trickle Charge Current I
TRICKLE
R
IREF
= 1.21MΩ, V
BAT
= 2.0V 2 7 15 mA
End-of-Charge Threshold I
MIN
R
IREF
= 80kΩ 85 110 135 mA
End-of-Charge Threshold I
MIN
R
IREF
= 1.21MΩ 2-30mA
RECHARGE THRESHOLD
Recharge Voltage Threshold V
RECHRG
3.85 4.00 4.10 V
ISL9203A
3
FN6430.0
February 14, 2007
TRICKLE CHARGE THRESHOLD
Trickle Charge Threshold Voltage V
MIN
2.1 2.3 2.5 V
V2P8 PIN VOLTAGE
V2P8-Pin Voltage V
V2P8
2.7 2.9 3.1 V
TEMPERATURE MONITORING
Charge Current Foldback Threshold (Note 4) T
FOLD
-100- °C
Current Foldback Gain (Note 4) G
FOLD
-100-mA/°C
OSCILLATOR
Oscillation Period T
OSC
C
TIME
= 15nF 2.4 3.0 3.6 ms
LOGIC OUTPUTS
STATUS Logic Low Sink Current Pin Voltage = 0.8V 5 - - mA
STATUS Leakage Current V
VIN
= V
STATUS
= 5V - - 1 µA
EN Input Logic High 2.0 - 3.3 V
EN Input Logic Low --0.8V
EN Pin Current When Driven Low - - 100 µA
NOTES:
3. The accuracy includes all errors except the programming resistance tolerance. The actual charge current may be affected by the thermal
foldback function if the thermal dissipation capability is not enough or by the on resistance of the power MOSFET if the charger input voltage is
too close to the output voltage.
4. Guaranteed by characterization.
Electrical Specifications Typical values are tested at V
IN
= 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. (Continued)
PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNITS
Typical Operating Performance The test conditions for the Typical Operating Performance are: V
IN
= 5V, T
A
= +25°C,
R
IREF
= R
IMIN
= 80kΩ, V
BAT
= 3.7V, unless otherwise noted.
FIGURE 1. CHARGER OUTPUT VOLTAGE vs CHARGE
CURRENT
FIGURE 2. CHARGER OUTPUT VOLTAGE vs TEMPERATURE
4.1975
4.1980
4.1985
4.1990
4.1995
4.2000
4.2005
4.2010
4.2015
0 0.3 0.6 0.9 1.2 1.5
CHARGE CURRENT (A)
R
IREF
= 40kΩ
V
BAT
(V)
4.190
4.192
4.194
4.196
4.198
4.200
4.202
4.204
4.206
4.208
4.210
0 20 40 60 80 100 120
TEMPERATURE (°C)
CHARGE CURRENT = 50mA
V
BAT
(V)
ISL9203A
P1-P3P4-P6P7-P9P10-P12P13-P14

ISL9203ACRZ

Mfr. #:
Buy ISL9203ACRZ
Manufacturer:
Renesas / Intersil
Description:
Battery Management BATRY CHRGR 3X3 10LD 53437A02
Lifecycle:
New from this manufacturer.
Delivery:
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