ISL6291-2CRZ-T Intersil, ISL6291-2CRZ-T Datasheet
ISL6291-2CRZ-T
Specifications of ISL6291-2CRZ-T
Related parts for ISL6291-2CRZ-T
ISL6291-2CRZ-T Summary of contents
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... A V2P8 pin outputs a 2.8V reference voltage that can be used to bias other circuits indication for the adapter presence. The ISL6291 is packed in a thermally enhanced 5x5 QFN package. See the Technical Brief TB389 given in the Related Literature for more information related to the package. ...
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... ISL6291-2CRZ - 5x5 QFN (See Note) (Pb-free) ISL6291-2CR- - 5x5 QFN L16.5x5B TR5155 ISL6291-2CRZ- - 5x5 QFN TR5155 (See Note) (Pb-free) ISL6291EVAL1 Evaluation Board *Add “-T” suffix to part number for tape and reel packaging. NOTE: Intersil Pb-free products employ special Pb-free material sets; molding compounds/die attach materials and 100% matte tin plate termination finish, which are RoHS compliant and compatible with both SnPb and Pb-free soldering operations ...
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Block Diagrams VIN x 3 V2P8 REF IREF Current Source IMIN I SEN2 TOEN V2P8 V TMIN TEMP V TMAX 3 V POR Inputok 100000:1 V current CH mirror V MIN I V SEN RECHRG ...
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... Typical Application 5V W all Adapter µ VIN VBAT TOEN Ω Ω ISL6291 TEMP FAULT IREF STATUS IMIN E N V2P8 TIME GND µ TIME µ V2P8 C 2 Battery Pack IREF IMIN Ω Ω FN9102.2 May 2, 2005 ...
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... CH V ISL6291 VBAT = 4.2V, charge current = 0.5A DROP 80kΩ, VBAT = V CHARGE IREF CH I TRICKLE I R pin = 80kΩ EOC IMIN V ISL6291-2 RECHRG V ISL6291-1 RECHRG V MIN V V2P8 = 3V TMIN V TMAX V RMV T FOLD G FOLD C = 15nF TIME Pin Voltage = 0.8V θ (°C/ MIN TYP ...
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Functional Pin Description VIN (Pin 1, 15, 16) VIN is the input power source pin that is connected to a wall adapter. FAULT (Pin 2) FAULT is an open-drain output indicating fault status. When a fault condition occurs, this pin ...
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... It is not recommended to fast charge a Li-ion battery when the battery is deeply discharged, indicated by a low battery voltage. When the ISL6291 sees a battery voltage lower than the V Specifications, it forces 1/10 of the current in the constant current mode into the battery ...
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... During the constant current charge mode, the STATUS pin remains LOW and the FAULT pin remains HIGH. Constant Voltage Charge Mode The ISL6291 regulates the battery terminal voltage at V the constant voltage mode. As the battery continues being charged, the charge current starts to decrease, as shown in Figure 1 ...
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... C Battery Pack Temperature Monitoring The ISL6291 uses two comparators to form a window comparator. Figure 3 shows the internal circuit. When the TEMP pin voltage is “out of the window,” as determined by the V and V , the charging is stopped. The two ...
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... The ISL6291 assumes that the thermistor is co-packed with the battery and is removed together with the battery. When the ISL6291 sees a voltage of 2.1V or higher on the TEMP pin, it assumes that the battery is removed. When the battery is removed, the charger stops and indicates a fault signal. A new charge cycle starts when a battery is inserted again ...
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... Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result from its use ...