3A I²C Controlled USB/Adapter Li-Ion Battery Charger with Power Path and 2.1A OTG Boost
HL7019D
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- 商品名: HL7019D
- 产品名称: 3A I²C Controlled USB/Adapter Li-Ion Battery Charger with Power Path and 2.1A OTG Boost
- 产品简介: The HL7019D is a fully integrated switch-mode Li-ion battery charger with power MOSFET, power path management, I²C interface and USB On-the-Go (OTG) boost function. It can be used with single cell or multi-cells in parallel Li-ion and Li-polymer batteries in a wide range of cellphones, smartphones, tablets, power banks, and other portable devices. Its switch-mode operation and low-resistance power path maximize charging, discharging, and boost efficiency. It also reduces battery charging time and extends battery life during a discharging phase. This device supports a wide range of input sources, including standard USB host port, USB charging port, and high-power AC-DC adapter. It supports an input operating voltage from 3.9V to 14V and can power up the system rail without a battery. It can automatically adjust to the maximum power output of the input source via the input dynamic power management control (INDPM).
HL7019D is a fully integrated switch-mode lithium-ion battery charger, featuring power MOSFET, power path management, I2C interface, and USB On-The-Go (OTG) boost functionality. It can be used for single or multiple parallel lithium-ion and lithium polymer batteries, suitable for various mobile phones, smartphones, tablets, power banks, and other portable devices. Its switch-mode operation and low-impedance power path maximize charging, discharging, and boost efficiency, reducing battery charging time and extending battery life during the discharging phase. The device supports multiple types of input sources, including standard USB host ports, USB charging ports, and high-power AC-DC adapters. It supports input operating voltages from 3.9V to 14V and can power backend systems without a battery. It can automatically adjust to the maximum power output of the input source through Input Dynamic Power Management Control (INDPM). HL7019 autonomously manages the complete charging cycle of lithium-ion batteries with or without an I2C host. It detects battery voltage and automatically charges the battery in four stages: trickle charge, pre-charge, constant current, and constant voltage. When the battery is full, it automatically terminates charging and restarts the charging cycle when the battery voltage falls below the charging threshold. For batteries with short-circuit protection, it can provide a float charge voltage to the battery terminals before charging begins to reactivate the battery. Its I2C interface allows programming of the chip's charging parameters through communication with the system. When the I2C host is unreachable, the built-in watchdog timer of HL7019D stops charging after a timeout to ensure safe operation of the battery. Even in the case of battery short-circuit or no battery, when an external power source is plugged in, the built-in low-impedance power path management circuit of HL7019D allows the backend system to power up immediately. In battery operation mode, when the system load demand exceeds the power provided by the external source, HL7019D enters battery assist power mode. The power path management system of HL7019D also provides a system reset function by disconnecting the battery while grounding the power, achieving system reset after a certain period. The USB OTG boost function provides a programmable 3.5V to 5.5V or 9V boost output from the battery at the VIN port, supporting currents up to 2.1A. HL7019 integrates comprehensive protection mechanisms to ensure safe operation of the battery, including monitoring battery temperature through a negative temperature coefficient (NTC) thermistor, charging safety timer, over-voltage, and under-voltage detection. The device also provides output over-current protection and regulates its on-chip junction temperature (TJ_REG) to 120℃ by adjusting its charging current.
- 20V input voltage tolerance, 3.9-14V operating voltage range
- High efficiency 3A switch mode charger
- USB-compliant/adapter charger
- USB1.0/2.0/3.0 Compliant Input Current Limit
- 0.1-3A Programmable Input Current Limit
- Autonomous preconditioning, CC/CV charge control, termination, and recharge
- 1.5MHz Synchronous PWM converter for small 1µH inductor
- USB OTG boost programmable VOUT: 4.55 to 5.51V or 9V
- Max IOUT: 2.1A @ 4.55-5.51V
- 90% Efficiency at 1.5A
- Hiccup mode over-current protection for reliable capacitive load start-up
- Power path management
- Instant system on with no battery or deeply discharged battery
- Ideal diode operation in battery assistant mode
- Full range programmable charge parameter through I²C compatible interface
- Accuracy (0°~125°C)
- ±0.5% Charge Voltage Regulation
- ±7% at 1792mA Charge Current Regulation
- ±15% Input Current Regulation
- ±3% Output Regulation in Boost Mode
- ±0.5% Charge Voltage Regulation
- High Integration
- Dynamic Power Path Management
- Synchronous Switching MOSFET
- Integrated Current Sensing
- Bootstrap Diode
- Internal Loop Compensation
- Dynamic Power Path Management
- Comprehensive Protection
- Safety Timer with Reset Control
- Thermal Regulation and Shutdown
- Input &Output Over-Voltage Protection
- Output Over Current Protection
- Reverse Battery Leakage Protection
- Safety Timer with Reset Control
- Charge Status Output for LED or Host Processor
- Shipping Mode and Low Battery Leakage Current
- 4mm X 4mm QFN-24 Package
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- Tablet PC
- Smart Phone
- Power Bank
- Portable Media Player
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For the full datasheet, please contact sales.cn@halomicro.com to submit your request.
For more sample information, please contact Get samples to submit your request,
or contact marketing@halomicro.cn by email to state your requirements.
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