ISL9519CHRZ-T Allicdata Electronics
Allicdata Part #:

ISL9519CHRZ-T-ND

Manufacturer Part#:

ISL9519CHRZ-T

Price: $ 0.00
Product Category:

Integrated Circuits (ICs)

Manufacturer: Intersil
Short Description: IC REG/CHRGR NARROW VDC 50TQFN
More Detail: Charger IC Lithium-Ion 50-QFN (5x7)
DataSheet: ISL9519CHRZ-T datasheetISL9519CHRZ-T Datasheet/PDF
Quantity: 1000
1 +: 0.00000
Stock 1000Can Ship Immediately
$ 0
Specifications
Series: --
Packaging: Tape & Reel (TR) 
Part Status: Obsolete
Battery Chemistry: Lithium-Ion
Number of Cells: 1 ~ 3
Current - Charging: --
Programmable Features: --
Fault Protection: Short Circuit
Charge Current - Max: 8A
Battery Pack Voltage: --
Voltage - Supply (Max): 22V
Interface: I²C
Operating Temperature: -10°C ~ 100°C (TA)
Package / Case: 50-PowerVFQFN
Supplier Device Package: 50-QFN (5x7)
Base Part Number: ISL9519
Description

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The ISL9519CHRZ-T is a high-accuracy, low-dropout linear charger with power-path management that supplies the systems power. This advanced power-management device is designed to maximize battery life and charge performance in space-limited portable applications.

The ISL9519CHRZ-T is a single-channel, high-accuracy, low-dropout linear charger with power-path management that supplies the systems power and maintains the battery at its full capacity. It provides a charge current of up to 1200 mA, a charge voltage of 4.2 V, a trickle charge current of 200 mA, and system power of 5.0 V. Its power-path management and low-dropout operation (LDO) operation ensure that the device maintains the battery at its maximum capacity, while delivering up to 1200 mA of charge current and system power input. It operates from either a USB 2.0 port or an AC adapter via its charge, power-rail, and accessory ports. The ISL9519CHRZ-T eliminates additional cost from a DC/DC converter, permitting the device to fit into a variety of motherboard and system solutions.

Features

  • High-accuracy linear charger
  • Low total dropout voltage
  • Maximum charge current of 1200 mA
  • Low impedance MOSFET switching outputs
  • Programmable charge voltage
  • Built-in power path and protection control
  • Charge and system power input from USB 2.0 or AC adapter
  • Supplies up to 1200 mA of charge current and system power

Application Field

The ISL9519CHRZ-T is suitable for portable applications such as mobile phones, tablets, and media players. It is ideal for multiport and low-power applications where space and low power dissipation are at a premium. In addition, the ISL9519CHRZ-T can be used in automotive applications, medical applications, portable electronics, and other power-hungry devices.

Working Principle

The ISL9519CHRZ-T consists of a charging circuit and a power path circuit. The charging circuit comprises a DC/DC converter and an onboard linear charge IC. The power path circuit consists of a low-impedance MOSFET switch, a low-dropout linear regulator, and protection circuitry. The DC/DC converter, which supplies the system power, includes an internal voltage reference, which is used to provide the charger with an accurate reference for charging the battery. This reference also prevents any overcharging of the battery.

The P-channel MOSFET switch is used to control the power flow from the system power input to the battery. This is done to improve the efficiency of the system by allowing the system to draw power from the battery while simultaneously charging it. The low-dropout linear regulator helps to reduce voltage drops across the system, providing an efficient power path. The protection circuitry ensures that the ISL9519CHRZ-T is always operating within its safe range, preventing any overcharging of the battery.

The ISL9519CHRZ-T also includes an integrated short-circuit protection and overcurrent protection that limit the charge current and protect the device from excessive current draw. Additionally, the overvoltage protection circuit monitors the voltage at the battery output, disabling the charger if the voltage exceeds a certain level. All these features ensure that the ISL9519CHRZ-T remains safe and reliable throughout its operation.

The specific data is subject to PDF, and the above content is for reference

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