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 | | Battery Chemistry | | Number of Cells | | Current - Charging | | Programmable Features | | Fault Protection | Over Temperature, Over Voltage | Charge Current - Max | | Battery Pack Voltage | | Voltage - Supply (Max) | | Interface | | Operating Temperature | | Mounting Type | | Package / Case | | Supplier Device Package | |
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. |
