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Intersil Electronic Components Datasheet

ISL9205C Datasheet

Li-ion Battery Charger

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ISL9205C pdf
DATASHEET
Li-ion Battery Charger
ISL9205, ISL9205A, ISL9205B, ISL9205C, ISL9205D
The ISL9205, ISL9205A, ISL9205B, ISL9205C, and ISL9205D
are integrated single-cell Li-ion or Li-polymer chargers 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 family 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 by a Constant Voltage phase (CC/CV). The charge
current during the Constant Current phase is determined by
the external resistor connected to the IREF pin. When the
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.
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 voltage
range
• 15mV voltage accuracy at room temperature
• Programmable charge current
• Programmable end-of-charge current (ISL9205)
• Charge current thermal foldback for thermal protection
(Thermaguard)
• Trickle charge for fully discharged batteries
• Power presence and charge indications
The ISL9205 family incorporates Thermaguard, which protects
the 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. The 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.
• NTC interface (not available in some package options)
• Less than 3µA leakage current off the battery when no input
power attached or charger disabled
• Ambient temperature range: -40°C to +85°C
• DFN, QFN packages
• Pb-Free (RoHS compliant)
Applications
• Mobile phones
• Bluetooth devices
• PDAs
• MP3 players
• Stand-alone cradle or travel chargers
• Other handheld devices
Related Literature
• For a full list of related documents, visit our website
- ISL9205, ISL9205A, ISL9205B, ISL9205C, ISL9205D
product pages
September 30, 2016
FN9252.3
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 LLC 2007, 2010, 2016. All Rights Reserved
Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries.
All other trademarks mentioned are the property of their respective owners.


Intersil Electronic Components Datasheet

ISL9205C Datasheet

Li-ion Battery Charger

No Preview Available !

ISL9205C pdf
ISL9205, ISL9205A, ISL9205B, ISL9205C, ISL9205D
Ordering Information
PART NUMBER
(Notes 1, 2, 3)
PART
MARKING
TEMP.
RANGE (°C)
VBAT (V)
VSEN
TEMP
TIMEOUT
PACKAGE
(RoHS COMPLIANT)
PKG
DWG. #
ISL9205IRZ
DLBA
-40 to +85 4.2 Yes Yes
Yes 16 Ld 3x3 QFN L16.3x3B
ISL9205AIRZ DLCA
-40 to +85 4.2 Yes
No
No 10 Ld 3x3 DFN L10.3x3
ISL9205BIRZ DLDA
-40 to +85 4.2 Yes
No
Yes 10 Ld 3x3 DFN L10.3x3
ISL9205CIRZ DLEA
-40 to +85
4.256
Yes
No
Yes 10 Ld 3x3 DFN L10.3x3
ISL9205DIRZ DLFA
-40 to +85 4.2 No Yes
Yes 10 Ld 3x3 DFN L10.3x3
NOTES:
1. Add “-T” suffix for “6k” unit tape and reel option. Refer to TB347 for details on reel specifications.
2. 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.
3. For Moisture Sensitivity Level (MSL), see product information page for ISL9205, ISL9205A, ISL9205B, ISL9205C, ISL9205D. For more information
on MSL, see tech brief TB363.
Pin Configurations
ISL9205
(16 LD QFN)
TOP VIEW
ISL9205A, ISL9205B, ISL9205C
(10 LD DFN)
TOP VIEW
VIN
FAULT
STATUS
TIME
1
2
3
4
12 VSEN
11 TEMP
10 IMIN
9 IREF
VIN
FAULT
STATUS
TIME
GND
1
2
3
4
5
10 VBAT
9 VSEN
8 IREF
7 V2P8
6 EN
ISL9205D
(10 LD DFN
TOP VIEW
VIN
FAULT
STATUS
TIME
GND
1
2
3
4
5
10 VBAT
9 TEMP
8 IREF
7 V2P8
6 EN
Submit Document Feedback
2
FN9252.3
September 30, 2016


Part Number ISL9205C
Description Li-ion Battery Charger
Maker Intersil
Total Page 17 Pages
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