ISL6251

highly integrated, battery charger controller, SSOP24, -0.3V to +28V, 300kHz, 10μA, Thermal Shutdown

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Price:: US $1.00~2.00 / piece [Get Latest Price]

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PartNumber:: ISL6251

Brand:: Intersil Corporation - Intersil | Pack: SSOP | D/C: 10+

Availability:: Supply Ability: 10000/Week Can Ship Immediately
Delivery: 10-15 Business Days (ships out within 3 Business days)

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Products Upload time: 2011-10-10

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Part Number:ISL6251
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Product Summary

The ISL6251 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 ISL6251 low side MOSFET emulates a diode at light loads to improve the light load efficiency and prevent system bus boosting. The applications of the ISL6251 include Notebook, Desknote and Sub-notebook Computers and Personal Digital Assistant.

Parametrics

ISL6251 absolute maximum ratings: (1)DCIN, CSIP, CSON to GND: -0.3V to +28V; (2)CSIP-CSIN, CSOP-CSON: -0.3V to +0.3V; (3)PHASE to GND: -7V to 30V; (4)BOOT to GND: -0.3V to +35V; (5)BOOT-PHASE, VDD-GND, VDDP-PGND, ACPRN to GND: -0.3V to 7V; (6)ACSET to GND: -0.3V to VDD+0.3V; (7)ICM, ICOMP, VCOMP to GND: -0.3V to VDD+0.3V; (8)ACLIM, CHLIM, VREF, CELLS to GND: -0.3V to VDD+0.3V; (9)EN, VADJ, PGND to GND: -0.3V to VDD+0.3V; (10)UGATE: PHASE-0.3V to BOOT+0.3V; (11)LGATE: PGND-0.3V to VDDP+0.3V.

Features

ISL6251 features: (1)±0.5% Charge Voltage Accuracy (-10 to 100℃); (2)±3% Accurate Input Current Limit; (3)±5% Accurate Battery Charge Current Limit; (4)±25% Accurate Battery Trickle Charge Current Limit; (5)Programmable Charge Current Limit, Adapter Current Limit and Charge Voltage; (6)Fixed 300kHz PWM Synchronous Buck Controller with Diode Emulation at Light Load; (7)Output for Current Drawn from AC Adapter; (8)AC Adapter Present Indicator; (9)Fast Input Current Limit Response; (10)Input Voltage Range 7V to 25V; (11)Support 2, 3 and 4 Cells Battery Pack; (12)Up to 17.64V Battery-Voltage Set Point; (13)Thermal Shutdown; (14)Support Pulse Charging; (15)Less than 10μA Battery Leakage Current; (16)Charge Any Battery Chemistry: Li-Ion, NiCd, NiMH, etc.