Overview:

   JZ3302It's a product designed to operate/perform in/with...2.7VTo6.5VNo Chinese content provided.PFMStep-up transformerBattery Charging Control Integrated Circuit for Lithium-ion CellsJZ3302Employing constant current andBattery charging management is performed in a constant voltage mode, with an internally integrated basePrecision voltage source, inductor current detection unit, battery voltage detectionRoad and field-effect transistor drive circuits, etc., with external elementsLow piece count, simple circuitry, and other advantages.

Upon powering on the input supply.JZ3302Enter charging mode, controlOut of the pictureNChannelMOSFETConduction, inductive current rise, as it risesAt the upper limit of the external current detection resistor setting, the chip outsideNChannelMOSFETAs of now, the inductive current is decreasing, with the energy in the inductor transforming...Move to the battery. When the inductor current drops to the external current detection circuit.The lower limit of the resistance setting is reached.NChannelMOSFETReconnectSuch cycles repeat. WhenBATTerminal voltage reaches the internal setting in one goThe8.4V(Typical Value)At that time,JZ3302Enter the quasi-constant voltage charging mode.Charge the battery with a lower current. Only whenBATLead voltageDouble Reach8.4VWhen, the charging process is complete, outside the sheetNChannelMOSFETMaintain the cutoff status. WhenBATLead voltage drops toAt the recharge thresholdJZ3302Recharge mode resumed.JZ3302zuiHigh operating frequency up to1MHz, Operating temperature range from -40℃To +85℃。

When the battery voltage is lower than the input voltage or the battery is short-circuited,JZ3302Off the filmNTrenchMOSFETAndPChannelMOSFETCommon effortContinue charging the battery with a lower current, which serves toProtective function.

Other features include chip-enabled inputs, status indicator outputs, etc.

   JZ3302Adopt8Lead FootSOP8Packaging.

Application:

 Dual Festival Lithium Battery Charging Controller

 POS Machine, Electric Fan

 Audio Equipment

 Stand-alone charger

Features:

 Input Voltage Range:2.7V To6.5V

 Operating Current:280Microampere@VIN=5V

 Inductor Current Detection

 Highly1MHzSwitching Frequency

 Constant voltage charging mode compensates for battery internal resistance and battery connection wireVoltage loss caused by resistance

 Automatic Recharge Function

 As high as35WOutput Power

 When the battery voltage is lower than the input voltage or the battery is short-circuited.Charge with a lower current.

 Adaptive power input feature

 Chip-enabled input terminal

 Battery over-voltage protection

 Status Indication Output

 Operating Temperature Range: -40℃ to85℃

 8Lead FootSOP8Sealed

 Lead-free, meetsrohsInstruction requirements: Halogen-free