The ISL6251, ISL6251A is a highly integrated battery charger controller for Li-Ion/Li-Ion polymer batteries and NiMH batteries. High efficiency is achieved by a synchronous buck topology and the use of a MOSFET, instead of a diode, for selecting power from the adapter or battery. The low side MOSFET emulates a diode at light loads to improve the light load efficiency and prevent system bus boosting.
The constant output voltage can be selected for 2, 3 and 4 series Li-Ion cells with 0.5% accuracy over-temperature. It can be also programmed between 4.2V+5%/cell and 4.2V-5%/cell to optimize battery capacity. When supplying the load and battery charger simultaneously, the input current limit for the AC adapter is programmable to within 3% accuracy to avoid overloading the AC adapter, and to allow the system to make efficient use of available adapter power for charging. It also has a wide range of programmable charging current. The ISL6251, ISL6251A provides outputs that are used to monitor the current drawn from the AC adapter, and monitor for the presence of an AC adapter. The ISL6251, ISL6251A automatically transitions from regulating current mode to regulating voltage mode.
Manufacturer: Intersil
Win Source Part Number: 017958-ISL6251AHAZ-T
Packaging: Reel - TR
Battery Chemistry: Multi-Chemistry
Number of Cells: 2 to 4
Current - Charging: Constant - Programmable
Charge Current - Max: 2.6A
Battery Pack Voltage: 17.64V (Max)
Categories: Integrated Circuits
Status: Active
Temperature Range - Operating: -10°C to 100°C (TA)
Case / Package: 24-QSOP
Programmable Fault Protection: Over Temperature, Short Circuit
Maximum Supply Voltage: 25V
Popularity: Medium
Fake Threat In the Open Market: 43 pct.
Supply and Demand Status: Sufficient
Quantity per package: 2,500
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Charger IC Multi-Chemistry 24-QSOP
| Renesas Electronics Corporation | Win Source Electronics | DigiKey | Lingto Electronic Limited | Shenzhen Shengyu Electronics Technology Limited | Quarktwin Technology Ltd. | |
|---|---|---|---|---|---|---|
| Product Category | Battery Charger ICs | Battery Charger ICs | Battery Charger ICs | Battery Charger ICs | Battery Charger ICs | Battery Charger ICs |
| Product Number | ISL6251AHAZ-T | 017958-ISL6251AHAZ-T | ISL6251AHAZ-T-ND | ISL6251AHAZ-T | ISL6251AHAZ-T | ISL6251AHAZ-T |
| Product Name | Low Cost Multi-Chemistry Battery Charger Controller | PMIC - PMIC - Battery Chargers - ISL6251AHAZ-T | PMIC - Battery Chargers | PMIC - Battery Chargers | Integrated Circuits (ICs) - PMIC - Battery Chargers | Battery Chargers |
| Cell Type | Li-Ion | Multi-Chemistry | Multi-Chemistry | Multi-Chemistry | ||
| Package Type | QSOP24 | SOP; 24-QSOP | 24-SSOP (0.154", 3.90mm Width) | SSOP | SOP; SSOP; 24-SSOP (0.154\", 3.90mm Width) | |
| Supply Voltage | 7 to 25 volts | 25 volts | 25 volts | 17.64 volts | ||
| Accuracy | 0.5000 % | |||||
| Cells | 2 to 4 | 2 to 4 |
