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ISL9219IRZ-T Battery Management Charger IC Lithium Ion/Polymer 20-QFN (3x4)
The ISL9219 is a fully integrated high input voltage single-cell Li-ion battery charger. This charger is fully in compliance with the USB electrical specification. The charger performs the CC/CV charge function 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 6V, to prevent excessive power dissipation. The 28V rating eliminates the overvoltage protection circuit required in a low input voltage charger. The fast charge current is programmable with an external resistor, and the end-of-charge (EOC) current is fixed at 50mA for any input source type. When the input power source is identified as a USB port, the host controller will further identify the power type of the port and drive the USBI pin accordingly. When the battery voltage is lower than the pre-charge threshold, which is also programmable with an external resistor, the charger preconditions the battery with an 85mA constant current. Charge is complete when the charge current reduces to the EOC current level during the CV charge phase. The STAT1 and STAT2 provide unique indication for each charging condition. An internal thermal foldback function protects the charger from any thermal failure. The STAT1, STAT2, TRKL and ACFLT pins are of open drain type, allowing a simple interface to a microprocessor or an LED. When no adapter is attached or when disabled, the charger draws less than 1µA leakage current from the battery. Additional features include an OVP protected power-good source, preconditioning of an over-discharged battery, an NTC thermistor interface for charging the battery in a safe temperature range, automatic recharge, and thermally enhanced QFN package.
Features
• Complete Charger for Single-Cell Li-ion/Polymer Batteries
• Integrated Pass Element and Current Sensor
• No External Blocking Diode Required
• Low Component Count and Cost
• 0.7% Voltage Accuracy
• Programmable Charge Currents
• 250µA (Typ) Suspend Quiescent Current
• USB 100mA/500mA Comply
• Charge Current Thermal Foldback for Thermal Protection
• Trickle Charge for Fully Discharged Batteries
• 28V Maximum Voltage for the Power Input
• Charge Status Indication
• Less than 1µA Leakage Current Off the Battery when No Input Power Attached or Charger Disabled
• Ambient Temperature Range: -40°C to +85°C
• Pb-free (RoHS Compliant)
Pinout
specification of ISL9219IRZ-T
Category
Integrated Circuits (ICs)
Power Management (PMIC)
Battery Chargers
Mfr
Renesas Electronics America Inc
Series
-
Product Status
Active
Battery Chemistry
Lithium Ion/Polymer
Number of Cells
1
Current - Charging
Constant - Programmable
Programmable Features
Timer
Fault Protection
Over Temperature, Over Voltage
Charge Current - Max
1A
Battery Pack Voltage
4.2V
Voltage - Supply (Max)
6V
Interface
USB
Operating Temperature
-40°C ~ 85°C (TA)
Mounting Type
Surface Mount
Package / Case
20-VFQFN Exposed Pad
Supplier Device Package
20-QFN (3x4)
ORIGINAL
Our company ensures that each batch of products comes from the original factory, and can provide original labels and professional testing agency reports.
PRICE
We provide a variety of quotation channels, and sign the order contract after negotiation.
TRANSACTION
After communication and agreement, we will guide you to arrange payment.
DELIVERY CYCLE
Delivery on the same day, generally 5-12 working days, may be slightly delayed during the epidemic, we will follow up the whole process.
TRANSPORT
We will choose the appropriate transportation mode according to your country.
PACKAGING
After communication with you, we will choose the appropriate packaging method according to the weight of the goods to ensure the safe delivery of the goods.
Shenzhen Xinyuanpeng Technology Co., Ltd. is a special distributor focusing on electronic components of global famous brands.
It mainly distributes TI, ST, RENESAS, INFINEON, MICROCHIP, NXP, ON, DIODES and other domestic and foreign brands, and is a well-known wholesaler and channel pro... Shenzhen Xinyuanpeng Technology Co., Ltd. is a special distributor focusing on electronic components of global famous brands.
It mainly distributes TI, ST, RENESAS, INFINEON, MICROCHIP, NXP, ON, DIODES and other domestic and foreign brands, and is a well-known wholesaler and channel pro...
