Overview
The BQ24266RGER is a highly integrated Power Management Integrated Circuit (PMIC) designed by Texas Instruments for lithium-ion battery charging applications. This IC is specifically categorized as a battery charger, offering a comprehensive solution for efficiently managing the charging process of lithium-ion batteries. It is particularly suited for space-limited, portable applications such as smartphones, tablets, and various consumer devices. The BQ24266RGER features a compact 24-VQFN (4x4) package with an exposed pad, ensuring a small footprint and reliable performance across a wide temperature range of -40°C to 85°C.
Key Specifications
| Parameter | Value |
|---|---|
| Part Number | BQ24266RGER |
| Function | Charge Management Power Management |
| Battery Chemistry | Li-Ion, Li-Pol |
| Supply Voltage | 4.2 V ~ 14 V |
| Maximum Charge Current | 3 A |
| Operating Temperature | -40°C ~ 85°C |
| Mounting Type | Surface Mount |
| Package/Case | 24-VQFN (4x4) Exposed Pad |
| Pin Configuration | 24 pin |
| Thermal Characteristics | Over Temperature Protection |
| Electrical Properties | Over Voltage Protection |
Key Features
- Supports a USB interface and precise control of charging parameters.
- Ensures constant current and constant voltage charging with programmable current up to 3A.
- Incorporates safety features including over-temperature and over-voltage protection to safeguard the battery and the electronics of the host device.
- Supports a battery pack voltage of 4.2V, optimal for standard Lithium-Ion cells.
- Employs a moisture sensitivity level rating of MSL 2, which allows for a shelf life of 1 year under normal environmental conditions.
- Integrated FETs for up to 3A charge rate at 5% accuracy and 93% peak efficiency.
- Boost capability to supply 5V at 1A at IN for USB OTG supply.
- Power path management feature allows the IC to power the system from a high efficiency DC to DC converter while simultaneously and independently charging the battery.
Applications
The BQ24266RGER is ideal for various portable electronic devices, including:
- Smartphones
- Tablets
- Digital cameras
- Power banks
- E-bikes and other devices that require lithium-ion battery charging functionality.
Q & A
- What is the primary function of the BQ24266RGER?
The BQ24266RGER is a highly integrated battery charge management IC designed for lithium-ion battery charging applications. - What is the maximum charge current of the BQ24266RGER?
The maximum charge current is 3A. - What is the operating temperature range of the BQ24266RGER?
The operating temperature range is -40°C to 85°C. - What type of package does the BQ24266RGER use?
The BQ24266RGER uses a 24-VQFN (4x4) package with an exposed pad. - Does the BQ24266RGER support USB OTG applications?
Yes, it is configurable to boost the battery voltage to 5V and supply up to 1A at the input for USB OTG applications. - What safety features does the BQ24266RGER include?
The IC includes over-temperature and over-voltage protection to safeguard the battery and the electronics of the host device. - How does the power path management feature work?
The power path feature allows the IC to power the system from a high efficiency DC to DC converter while simultaneously and independently charging the battery. - What is the battery chemistry supported by the BQ24266RGER?
The IC supports Li-Ion and Li-Pol battery chemistries. - Is the BQ24266RGER compliant with environmental directives?
Yes, it complies with RoHS, lead-free directives ensuring safety and environmental protection. - What is the typical charging profile used by the BQ24266RGER?
The battery is charged using a standard Li-Ion charge profile with three phases: precharge, constant current, and constant voltage.
