Switching Charger. ISL9220 Datasheet

ISL9220 Charger. Datasheet pdf. Equivalent

ISL9220 Datasheet
Recommendation ISL9220 Datasheet
Part ISL9220
Description Switching Charger
Feature ISL9220; DATASHEET ISL9220, ISL9220A Switching Charger for 1-Cell and 2-Cell Li-ion Batteries FN6936 Rev 3..
Manufacture Renesas
Datasheet
Download ISL9220 Datasheet




Renesas ISL9220
DATASHEET
ISL9220, ISL9220A
Switching Charger for 1-Cell and 2-Cell Li-ion Batteries
FN6936
Rev 3.00
February 16, 2012
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
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
Resistor
• Thermistor Interface for Battery Detection and Temperature
Qualified Charging
• 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
TB363 “Guidelines for Handling and Processing Moisture
Sensitive Surface Mount Devices (SMDs)”
TB379 “Thermal Characterization of Packaged
Semiconductor Devices”
TB389 “PCB Land Pattern Design and Surface Mount
Guidelines for QFN Packages”
AN1589, “ISL9220IRTZEVAL1Z (1-cell),
ISL9220AIRTZEVAL1Z (2-cell) Evaluation Board”
Pin Configuration
ISL9220, ISL9220A
(20 LD TQFN)
TOP VIEW
STAT2 1
EN 2
AGND 3
ISET1 4
ISET2 5
PAD
(AGND)
15 PGND
14 SW
13 SW
12 VHI
11 VIN
FN6936 Rev 3.00
February 16, 2012
Page 1 of 15



Renesas ISL9220
ISL9220, ISL9220A
Pin Descriptions
PIN
1
2
3
4
5
6
7
8
9
10, 11
12
13, 14
15, 16
17
18
19
20
SYMBOL
STAT2
EN
AGND
ISET1
ISET2
VBAT
ISNS
CISP
CISN
VIN
VHI
SW
PGND
VBIAS
RTH
TIME
STAT1
EPAD
DESCRIPTION
Open-drain indication pin. In conjunction with STAT1 this pin provides a unique indication for each charging state of the
cycle. This pin is capable to sink 10mA minimum current to drive an LED.
IC enable input. Drive this pin to logic LO to enable the charger. Drive this pin to logic HI to disable the charger. Do not
leave this pin floating.
Analog ground.
Charge current programing pin. Connect a resistor between this pin and the GND pin to set the charge current.
End-of-charge current programing pin. Connect a resistor between this pin and the GND pin to set the end-of-charge
current.
Battery connection pin. Connect this pin to the battery. A 10µF or larger X5R ceramic capacitor is recommended for
decoupling and stability purposes.
Output current sense pin. Connect a current sense resistor from this pin to VBAT. No decoupling capacitor is needed at
this pin.
Input current sense positive connection pin. Connector a sense resistor from this pin the CISN.
Input current sense negative connection pin. Connector a sense resistor from this pin the CISP.
Input supply voltage. Connect a 4.7µF ceramic capacitor from VIN to PGND.
High-side NMOS FET gate drive supply pin. Connect the anode of a Schottky diode to VBIAS pin and the cathode to VHI
pin. Connect a 0.1µF capacitor from VHI pin to SW pin. See “Typical Application Diagrams” on page 6.
Switch node and inductor connection pin.
Power ground.
Internal 5V regulator output. Connect a 0.1µF ~ 4.7µF ceramic capacitor from this pin to AGND. A typical 1µF ceramic
capacitor is recommended.
Input for an external NTC thermistor for battery temperature monitoring.
The TIME pin sets the oscillation period by connecting a timing capacitor between this pin and GND. The oscillator also
provides a time reference for the charger. The timer function can be disabled by connecting the TIME pin to GND. If the
timer is disabled, there will be no timeout function for any operation mode including trickle charge and fast charge
modes.
Open-drain indication pin. In conjunction with STAT2 this pin provides a unique indication for each charging state of the
cycle. This pin is capable to sink 10mA minimum current to drive an LED.
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 1, 2, 3)
PART MARKING
NUMBER
OF CELLS
TEMP. RANGE
(°C)
PACKAGE
Tape & Reel
(Pb-free)
PKG.
DWG. #
ISL9220IRTZ-T
92 20IRTZ
1
-40 to +85
20 Ld 4x4 TQFN
L20.4x4E
ISL9220IRTZ-T7A
92 20IRTZ
1
-40 to +85
20 Ld 4x4 TQFN
L20.4x4E
ISL9220AIRTZ-T
922 0AIRTZ
2
-40 to +85
20 Ld 4x4 TQFN
L20.4x4E
ISL9220AIRTZ-T7A
922 0AIRTZ
2
-40 to +85
20 Ld 4x4 TQFN
L20.4x4E
ISL9220IRTZEVAL1Z
Evaluation Board
ISL9220AIRTZEVAL1Z
Evaluation Board
NOTES:
1. Please refer to TB347 for details on reel specifications.
2. These Intersil Pb-free plastic packaged products employ special Pb-free material sets, molding compounds/die attach materials, and 100% matte
tin plate plus anneal (e3 termination finish, which is 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), please see device information page for ISL9220, ISL9220A.For more information on MSL please see techbrief
TB363.
FN6936 Rev 3.00
February 16, 2012
Page 2 of 15



Renesas ISL9220
ISL9220, ISL9220A
Absolute Maximum Ratings
VIN, CISP, CISN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 18V
SW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.7V to 18V
VHI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 24V
VBAT, ISNS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 10V
ISET1, ISET2, RTH, VBIAS, STAT1, STAT2, EN . . . . . . . . . . . . . -0.3V to 5.5V
TIME . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 2.75V
Input Current (VIN) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2.0A
Output Current (SW) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2.2A
ESD Rating
Human Body Model (Tested per JESD22-A114F) . . . . . . . . . . . . . . 2500V
Machine Model (Tested per EIA/JESD22-A115-A) . . . . . . . . . . . . . . 175V
Charged Device Model (Tested per JES22-C101D). . . . . . . . . . . . . 1500V
Latch-Up
(Tested per JESD-78B; Class 2 (+85°C), Level A) . . . . . . . . . . . . . 100mA
Thermal Information
Thermal Resistance (Typical)
JA (°C/W) JC (°C/W)
4x4 QFN Package (Notes 4, 5) . . . . . . . .
40
4.3
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. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9V to 14V
Programmable Charge Current . . . . . . . . . . . . . . . . . . . . . . . . 200mA to 2A
Programmable Trickle Current . . . . . . . . . . . . . . . . . . . . . . 20mA to 200mA
CAUTION: Do not operate at or near the maximum ratings listed for extended periods of time. Exposure to such conditions may adversely impact product
reliability and result in failures not covered by warranty.
NOTES:
4. 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.
5. JC, “case temperature” location is at the center of the exposed metal pad on the package underside.
Electrical Specifications Typical specifications are measured at the following conditions: TA = +25°C; For ISL9220, VIN = 5V;
For ISL9220A, VIN = 12V.
PARAMETER
SYMBOL
TEST CONDITIONS
MIN TYP MAX UNITS
POWER-ON RESET
Rising VIN Threshold
Falling VIN Threshold
VIN - VBAT OFFSET VOLTAGE
Rising Offset Threshold
VPOR_R
VPOR_F
VOS_R
ISL9220
3.4 3.6 3.8
2.2 2.4 2.6
V
V
-
95 150
mV
Falling Offset Threshold
VOS_F
ISL9220A
ISL9220
ISL9220A
- 170 300
10 65
-
20 130 -
mV
mV
mV
SUPPLY CURRENT
VIN Pin Supply Current
Battery Discharge Current
(Total of currents flowing into VBAT, ISNS,
SW pins)
ICC(VIN)
IDIS
PGOOD = TRUE, EN = L (Note 6)
PGOOD = TRUE, EN= H (Note 6)
VIN = 5V to 12V
VIN < VPOR OR EN = H
2V < VBAT < 11V
10 15
mA
- - 0.5 mA
- 2 5 µA
OVERVOLTAGE PROTECTION
Input OVP Rising Threshold
Input OVP Falling Threshold
OUTPUT CURRENT
VIN_OVPR
VIN_OVPF
14.5 15.0 15.5
14.0 14.5 15.0
V
V
Fast Charge Current Accuracy
Charge Termination Current Accuracy
Charge Termination Detection Deglitch
Time
ICHG
IMIN
RSNS = 0.039
RISET1 = 49.9k(Nominal IOUT = 1000mA)
RSNS = 0.039
RISET2 = 300k(Nominal IMIN = 100mA)
-10 - 10
-35 - 35
- 12 -
%
%
ms
FN6936 Rev 3.00
February 16, 2012
Page 3 of 15







@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site (Privacy Policy & Contact)