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PDF ISL9230 Data sheet ( Hoja de datos )
| Número de pieza | ISL9230 | |
| Descripción | High Power Li-Ion Charger W/I-Path Management | |
| Fabricantes | Intersil | |
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High Power Li-Ion Charger W/I-Path Management
ISL9230
The ISL9230 is a fully integrated high input voltage single-cell
Li-ion battery charger with power path management function.
This charger performs the CC/CV charge function required by
Li-ion batteries. The charger can withstand an input voltage up to
26V but is disabled when the input voltage exceeds 6.6V OVP
threshold. The input current limit and charge current are
programmable with external resistors. When the battery voltage
is lower than 3.0V, the charger preconditions the battery with
10% of the programmed charge current. When the charge
current reduces to the end-of-charge (EOC) current level during
the CV charge phase, the EOC indicator (CHG) will toggle to a
logic high to indicate the end-of-charge condition.
The ISL9230 uses separate power paths to supply the system
load and the battery. This feature allows the system to
immediately operate with a completely discharged battery. This
feature also allows the charge to terminate when the battery is
full while continuing to supply the system power from the input
source, thus minimizing unnecessary charge/discharge cycles
and prolonging the battery life.
Two indication pins (PG and CHG) allow simple interface to a
microprocessor or LEDs.
Features
• Complete Charger for Single-Cell Li-ion/Polymer Batteries
• Current Path Management Optimize for Charge and System
Currents
• Intelligent Timeout Interval Based on Actual Charge Current
• 1% Charger Output Voltage Accuracy
• Programmable Input Current Limit
• Programmable Charge Current
• NTC Thermistor Input
• Complies with USB Charger
• Charge Current Thermal Foldback for Thermal Protection
• Trickle Charge for Fully Discharged Batteries
• 26V Maximum Voltage at VIN Pin
• Power Presence and Charge Indications
• Ambient Temperature Range: -40°C to +85°C
• 16 Ld 3x3 TQFN Package
• Pb-Free (RoHS Compliant)
Applications
• Mobile Phones
• Blue-Tooth Devices
• PDAs
• MP3 Players
• Stand-Alone Chargers
• Other Handheld Devices
INPUT
C1
FROM
µP
VIN VOUT
ISL9230 VBAT
CONT
CHGEN
IREF
RIREF
ILIM
RILIM
TIME
RTIME
GND
PG
CHG
NTC
AC/USB
MODE
TO SYS
C3
R1 R2 C2
D1
} FROM µP
BATT
T
FIGURE 1. TYPICAL APPLICATION CIRCUIT
PART
DESCRIPTION
C1 4.7µF X5R ceramic capacitor
C2 1µF X5R ceramic capacitor
C3 4.7µF X5R ceramic capacitor
RIREF (Application specific)
RTIME (Application specific)
RILIM (Application specific)
R1, R2 300 to 1kΩ, 5% resistor
D1, D2 LEDs for indication
September 22, 2011
FN7642.2
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. 2011. 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.
1 page  
ISL9230
Absolute Maximum Ratings (Referenced to GND)
VIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 26V
All other pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 6.5V
IVIN (Input Current) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1.6A
IO Output Current (Continuous)
IVOUT (Continuous) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5A
IVBAT (Discharge Mode) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5A
IVBAT (Charging Mode) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1.5A
Output Sink Current CHG, PG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15mA
Thermal Information
Thermal Resistance (Typical)
θJA (°C/W) θJC (°C/W)
QFN Package (Notes 4, 5) . . . . . . . . . . . . . .
41
3.0
Maximum Junction Temperature (Plastic Package) . . . .-40°C to +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
Maximum Supply Voltage (VIN Pin) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24V
Operating Supply Voltage (VIN Pin) . . . . . . . . . . . . . . . . . . . . . 4.3V to 6.25V
Programmed Fast Charge Current . . . . . . . . . . . . . . . . .300mA to 1500mA
IVIN Input current, VIN Pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1.5A
IVOUT Current, VOUT Pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4.5A
IVBAT Current, VBAT Pin (Discharging) . . . . . . . . . . . . . . . . . . . . . . . . . . .4.5A
IVBAT Current, BAT Pin (Charging). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1.5A
ESD Ratings
Human Body Model (Tested per JESD22-A114F) . . . . . . . . . . . . . . .2.5kV
Machine Model (Tested per JESD22-A115-A) . . . . . . . . . . . . . . . . . . 250V
Charged Device Model (Tested per JESD22-C101D) . . . . . . . . . . . 1000V
Latch Up (Tested per JESD78B, Class II, Level A) . . . . . . . . . . . . . . . 100mA
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. 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.
5. For θJC, the “case temp” location is the center of the exposed metal pad on the package underside.
Electrical Specifications Typical values are tested at VIN = 5V, VBAT = 3.6V and the ambient temperature at +25°C. MIN/MAX
limits are across the operating conditions, unless otherwise specified. Boldface limits apply over the operating temperature range, -40°C to
+85°C.
PARAMETER
SYMBOL
TEST CONDITIONS
MIN MAX
(Note 8) TYP (Note 8) UNITS
POWER-ON RESET
Rising POR Threshold
Falling POR Threshold
POR Deglitch Time
VIN-BAT OFFSET VOLTAGE
Rising Threshold
Falling Threshold
VIN OVERVOLTAGE PROTECTION
VPOR_R
VPOR_F
tPG
VBAT = 3.0V, use PG to indicate the comparator output
VIN >VPOR to PG Low
3.2
2.92
3.36
3.05
1.2
3.5
3.18
V
V
ms
VOS_R
VOS_F
VBAT = 3.6V, VIN ramps from 3.5V to 4V
VBAT = 3.6V, VIN ramps from 4V to 3.5V
50 80 130 mV
20 60
mV
Overvoltage Protection Threshold
OVP Threshold Hysteresis
Input Overvoltage Blanking
Input OVP Recovery Time
BATTERY DETECTION
VOVP
VOVP_HYS
tOVP_BLK
tOVP-REC
6.25
6.6
110
50
1.2
6.9 V
mV
µs
ms
Battery Detection Current
IDET VBAT = 2.5V (Note 7)
Detection Timer
tDET
ILIM, IREF SHORT CIRCUIT DETECTION (CHECKED DURING START-UP)
-5 -7.5 -10 mA
250 ms
Current Source
ISC VIN > VPOR and VIN > VBAT + VOS
1.4 mA
5 FN7642.2
September 22, 2011
5 Page 
ISL9230
Typical Characteristics VIN = 5V, VBAT = 3.6V, AC/USB = 1, MODE = 0, TA = +25°C, unless otherwise
specified. (Continued)
600
ILOAD = 1A
500
400
300
80
ILOAD = 1A
70 VIN = 0V
60 VBAT = 3.6V
50
40
200
100
0
-50 -25
0 25 50 75
TEMPERATURE (°C)
100 125
FIGURE 14. DROPOUT VOLTAGE (Q1) vs TEMPERATURE
30
20
10
0
-50 -25
0 25 50 75
TEMPERATURE (°C)
100 125
FIGURE 15. DROPOUT VOLTAGE (Q2) vs TEMPERATURE
43 ILOAD = 1A
VIN = 0V
41
39
37
35
333.0 3.2 3.4 3.6 3.8 4.0
VBAT (V)
FIGURE 16. DROPOUT VOLTAGE (Q2) vs VBAT
4.2
1.2
1.0
0.8
0.6
0.4
0.2
0.0
100 105 110 115 120 125 130 135 140 145 150
TEMPERATURE (°C)
FIGURE 17. THERMAL REGULATION OF IBAT
4.23
IBAT = 10mA
4.21
4.19
4.17
4.15
-50
-25
0
25 50 75 100 125
TEMPERATURE (°C)
FIGURE 18. BATTERY VOLTAGE REGULATION vs TEMPERATURE
4.45
IOUT = 10mA
4.44
4.43
4.42
4.41
4.40
4.39
-50
-25
0 25 50 75
TEMPERATURE (°C)
100 125
FIGURE 19. OUTPUT VOLTAGE REGULATION vs TEMPERATURE
11 FN7642.2
September 22, 2011
11 Page | ||
| Páginas | Total 20 Páginas | |
| PDF Descargar | [ Datasheet ISL9230.PDF ] | |
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