HL7019D
3A I²C Controlled USB/Adapter Li-Ion Battery Charger with Power Path and 2.1A OTG Boost
Overview
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).
For more detailed description of the device, please download a product brief.
Features
- 20V input voltage tolerance, 3.9-14V operating voltage range
- High efficiency 3A switch mode charger
- USB-compliant/adapter charger
- USB 1.0/2.0/3.0 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
Block Diagram
For more information or a full datasheet request, please contact the factory at sales@hmisemi.com.
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