isl9222a Intersil Corporation, isl9222a Datasheet
isl9222a
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isl9222a Summary of contents
Page 1
... Data Sheet High Input Voltage Charger The ISL9222A is a cost-effective, fully integrated high input voltage single-cell Li-ion battery charger. The charger uses a CC/CV charge profile required by Li-ion batteries. The charger accepts an input voltage up to 28V but is disabled when the input voltage exceeds the OVP threshold, typically 7 ...
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... PRECONDITIONING CHARGE THRESHOLD Preconditioning Charge Threshold Voltage Preconditioning Voltage Hysteresis INTERNAL TEMPERATURE MONITORING Charge Current Foldback Threshold 2 ISL9222A Thermal Information Thermal Resistance TDFN Package (Notes 1, 2 Maximum Junction Temperature (Plastic Package +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 = 5V and the ambient temperature at +25° ...
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... EN - Enable input. This is a logic input pin to disable or enable the charger. Drive to HIGH to disable the charger. When this pin is driven to LOW or left floating, the charger is enabled. This pin has an internal 200kΩ pull-down resistor. 3 ISL9222A = 5V and the ambient temperature at +25°C. All maximum and minimum IN SYMBOL TEST CONDITIONS ...
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... TO INPUT POWER C 1 1µ OFF C 3 POWER GOOD JIGIN Yes Yes 4 ISL9222A BAT VIN PPR ISL9222A IREF GND R IREF EN JIGON JIGIN TABLE 1. JIGON STATES VBAT VOLTAGE PRESENT, OR BATTERY ATTACHED Yes Yes 470 ...
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... R (See Typical Applications circuit on page 4) IREF and the constant voltage is fixed at 4.2V. If the battery voltage is below a typical 2.55V trickle-charge threshold, the ISL9222A charges the battery with a trickle current of 19 until the battery voltage rises above the trickle charge REF 5 ...
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... Operation Without the Battery The ISL9222A relies on a battery for stability and is not guaranteed to be stable if the battery is not connected. With a battery, the charger will be stable with an output ceramic decoupling capacitor in the range of 1µ ...
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... USB port. The input voltage ranges from 4.25V to 6.5V under full-load and unloaded conditions. The ISL9222A can withstand up to 28V on the input without damaging the IC. If the input voltage is higher than typically 7.2V, the charger stops charging. ...
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... 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. No license is granted by implication or otherwise under any patent or patent rights of Intersil or its subsidiaries. For information regarding Intersil Corporation and its products, see www.intersil.com 8 ISL9222A L8.2x3A 0.15 C ...