Overview
The BQ24070RHLR from Texas Instruments is a highly integrated Li-ion linear charger and system power-path management device. It is designed for single-cell Li-ion or Li-polymer-based portable applications, particularly in space-limited designs. This device offers DC supply (AC adapter) power-path management with autonomous power-source selection, ensuring continuous power to the system from either the AC adapter or the battery. The BQ24070RHLR supports features such as dynamic power-path management, power supplement mode, and thermal regulation, making it an efficient and reliable choice for various portable devices.
Key Specifications
| Specification | Value |
|---|---|
| Package | 20-pin VQFN (RHL) |
| Package Dimensions | 3.5 mm × 4.5 mm |
| Operating Temperature Range | -40°C to 125°C (TJ) |
| Battery Chemistry | Lithium-ion/Polymer |
| Number of Cells | 1 |
| Maximum Charge Current | 2 A (programmable) |
| Supply Voltage (Max) | 16 V |
| Output Regulation Voltage | 4.4 V and 6 V options |
| Fault Protection | Over temperature, reverse current, short circuit |
Key Features
- Small 3.5-mm × 4.5-mm VQFN package, ideal for space-limited portable applications.
- Integrated dynamic power-path management (DPPM) allowing the AC adapter to simultaneously power the system and charge the battery.
- Power supplement mode allows the battery to supplement the AC input current.
- Autonomous power source selection (AC adapter or battery).
- Thermal regulation for charge control and charge status outputs for LED or system interface.
- Reverse current, short-circuit, and thermal protection.
- Power good status outputs.
Applications
The BQ24070RHLR is targeted at single-cell Li-ion or Li-polymer-based portable applications, including but not limited to:
- Smartphones and mobile devices
- Tablets and e-readers
- Portable media players and gaming devices
- Wearable electronics such as smartwatches and fitness trackers
- Other compact, battery-powered devices requiring efficient power management.
Q & A
- What is the BQ24070RHLR used for?
The BQ24070RHLR is a highly integrated Li-ion linear charger and system power-path management device used in single-cell Li-ion or Li-polymer-based portable applications.
- What are the key features of the BQ24070RHLR?
Key features include integrated dynamic power-path management, power supplement mode, autonomous power source selection, thermal regulation, and various protection mechanisms.
- What is the maximum charge current of the BQ24070RHLR?
The maximum charge current is up to 2 A and is programmable.
- What are the output regulation voltage options for the BQ24070RHLR?
The device offers output regulation voltage options of 4.4 V and 6 V.
- What kind of fault protection does the BQ24070RHLR have?
The device includes over temperature, reverse current, and short-circuit protection.
- What is the operating temperature range of the BQ24070RHLR?
The operating temperature range is -40°C to 125°C (TJ).
- What package type and dimensions does the BQ24070RHLR come in?
The device comes in a 20-pin VQFN (RHL) package with dimensions of 3.5 mm × 4.5 mm.
- Does the BQ24070RHLR support power supplement mode?
Yes, the device supports power supplement mode, allowing the battery to supplement the AC input current.
- How does the BQ24070RHLR manage power sources?
The device features autonomous power source selection, allowing it to switch between the AC adapter and the battery as needed.
- What kind of applications is the BQ24070RHLR suitable for?
The device is suitable for various portable applications including smartphones, tablets, wearable electronics, and other compact battery-powered devices.
