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| Li-ion/Li-Polymer Battery Charger |
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Available in RoHS/Pb-Free
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 Buy direct from Intersil
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 Check distributor inventory
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 Request samples
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Part No. |
Design-In
Status |
Temp. |
Package |
MSL |
Price
US $ |
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| ISL6298-2CR3Z |
Active |
See Datasheet |
10 Ld DFN |
3 |
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| ISL6298-2CR3Z-T |
Active |
See Datasheet |
10 Ld DFN T+R |
3 |
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| ISL6298-2CR4Z |
Active |
See Datasheet |
16 Ld QFN |
3 |
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| ISL6298-2CR4Z-T |
Active |
See Datasheet |
16 Ld QFN T+R |
3 |
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| ISL6298CR4Z |
Active |
See Datasheet |
16 Ld QFN |
3 |
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| ISL6298CR4Z-T |
Active |
See Datasheet |
16 Ld QFN T+R |
3 |
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| ISL6298EVAL1 |
Active |
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Eval Board |
N/A |
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| ISL6298EVAL2 |
Active |
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Eval Board |
N/A |
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| ISL6298-1CR4Z |
Coming
Soon |
Comm |
16 Ld QFN |
3 |
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| ISL6298-1CR4Z-T |
Coming
Soon |
Comm |
16 Ld QFN T+R |
3 |
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| The price listed is the manufacturer's suggested retail price for quantities of 1K units. However, prices in today's market are fluid and may change without notice. |
| MSL = Moisture Sensitivity Level - per IPC/JEDEC J-STD-020 |
| SMD = Standard Microcircuit Drawing |
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 Description |
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The ISL6298 is an integrated single-cell Li-ion or Li-polymer battery charger optimized for low current applications. The targeted applications include mini-disk (MD) players, Blue Tooth headsets, or other applications that use low-capacity battery cells.
The ISL6298 is a linear charger that charges the battery in a CC/CV (constant current/constant voltage) profile. The charge current is programmable with an external resistor up to 450mA during the CC phase. Once the battery voltage reaches 4.2V (or 4.1V), the charger enters CV mode and the charge current starts to reduce. When the charger current drops to a user-programmable threshold, the charger indicates the end-of-charge with a STATUS pin. The charger does not actually terminate until a user-programmable total fast charge time is reached. If the battery voltage drops to a recharge threshold after termination, the charger will recharge the battery to its full capacity. The charger preconditions the battery with 20% of the programmed CC current if the battery voltage is below 2.8V. The total precharge time is limited to 1/8 of the total fast charge time.
The ISL6298 features charge current thermal foldback to guarantee safe operation when the printed circuit board is space-limited for thermal dissipation. Additional features include an NTC thermistor interface for monitoring the ambient temperature, the ability to disable the time limit of the fast charge, an FAULT indication, and a thermally enhanced QFN or DFN package. |
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 Key Features |
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Complete Charger for Single-Cell Li-ion Batteries
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Integrated Pass Element and Current Sensor
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No External Blocking Diode Required
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1% Voltage Accuracy
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Programmable Current Limit up to 450mA
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Programmable End-of-Charge Current
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Preconditioning with 20% Fast Charge Current
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10% Accuracy at 250mA
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Charge Current Thermal Foldback
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NTC Thermistor Interface for Battery Temperature Monitor
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User Programmable Safety Timer
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Ambient Temperature Range: -20°C to 70°C
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Thermally-Enhanced QFN Packages
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Pb-Free Available (RoHS Compliant)
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| Related Documentation |
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 Datasheet(s): |
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 Technical Brief(s): |
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 Evaluation Board(s): |
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 Parametric Data |
| | VOUT (typ) (V) | | 4.1, 4.2 | | | Voltage Accuracy (%) | | 1 | | | VIN1 (max) (V) | | 7 | | | VIN2 (max) (V) | | N/A | | | IOUT1 (max) (A) | | .45 | | | IOUT2 (max) (A) | | N/A | | | Safety Timer | | Y | | | Self Termination | | Y | | | Accepts CC Adapter | | Y | | | VIN1 Trickle Charge (min) (% CC) | | 20 | | | VIN2 Trickle Charge (min) (% CC) | | N/A | | | Thermal Regulation | | Y | | Functions
(Pin) | | Enable,
Charge Status,
Fault Indiction,
NTC Input,
Timeout Disable,
Programmable IMIN,
Reference Voltage | |
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 Application Block Diagrams |
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| Applications |
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- MD Players, Blue-Tooth Headsets and MP3 Players
- Portable Instruments
- PDAs, Cell Phones and Smart Phones
- Stand-Alone Chargers
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| | ISL6291 | | Li-ion/Li Polymer Linear Battery Charger | | | | ISL6292 | | Li-ion/Li Polymer Battery Charger | | | | ISL6292B | | Li-ion/Li Polymer Battery Charger | | | | ISL6292C | | Li-ion/Li Polymer Battery Charger | | | | ISL6292D | | Li-ion/Li Polymer Battery Charger | | | | ISL6293 | | Li-ion/Li Polymer Battery Charger Accepting Two Power Sources | | | | ISL6294 | | High Input Voltage Charger | | | | ISL6297 | | Li-ion/Li Polymer Battery Charger | | | | ISL6299A | | Li-ion/Li-Polymer Battery Charger Accepting Two Power Sources | | | | ISL9203R5220 | | Li-ion/Li Polymer Battery Charger | | | | ISL9204 | | High Input Voltage Charger | | | | ISL9205 | | Li-ion Battery Charger | | | | ISL9205A | | Li-ion Battery Charger | | | | ISL9205B | | Li-ion Battery Charger | | | | ISL9205C | | Li-ion Battery Charger | | | | ISL9205D | | Li-ion Battery Charger | | | | ISL9214 | | Li-ion/Li-Polymer Battery Charger Accepting Two Power Sources | | | | ISL9214A | | Li-ion/Li-Polymer Battery Charger Accepting Two Power Sources | | | | ISL9219 | | Li-ion Battery Charger | | | | ISL9219A | | Li-ion Battery Charger | | | | ISL9221 | | Dual Input Lithium Ion Battery Charger with OVP USB Bypass and 10mA LDO | | | | ISL9222 | | High Input Voltage Charger | | | | ISL9222A | | High Input Voltage Charger | | | | ISL9301 | | High Input Voltage Charger With Power Path Management | |
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