Overview
The BQ24103ARHLRG4 is a highly integrated synchronous switch-mode Li-ion and Li-polymer charge management IC produced by Texas Instruments. This device is part of the bqSWITCHER™ series, designed for efficient and reliable battery charging in a variety of portable applications. It features an integrated synchronous fixed-frequency PWM controller and power FETs, enabling high-accuracy voltage and current regulation. The BQ24103ARHLRG4 is available in a compact 20-pin VQFN package, making it suitable for space-constrained designs.
Key Specifications
| Specification | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Series | bqSWITCHER™ |
| Battery Chemistry | Lithium Ion/Polymer |
| Number of Cells | 1 ~ 2 |
| Charge Current - Max | 2A |
| Battery Pack Voltage | 8.4V |
| Voltage - Supply (Max) | 16V |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount |
| Package / Case | 20-VQFN Exposed Pad |
| Programmable Features | Current, Timer |
| Fault Protection | Over Temperature, Over Voltage |
Key Features
- Integrated synchronous fixed-frequency PWM controller operating at 1.1 MHz with 0% to 100% duty cycle.
- Integrated power FETs for up to 2-A charge rate.
- High-accuracy voltage and current regulation.
- Status outputs for LED or host processor interface indicating charge-in-progress, charge completion, fault, and AC-adapter present conditions.
- Battery temperature monitoring and thermal shutdown protection.
- Reverse leakage protection to prevent battery drainage.
- Automatic sleep mode for low power consumption when VCC supply is removed.
- Available in both stand-alone and system-controlled versions.
- High-side battery current sensing.
- Built-in battery detection.
Applications
- Handheld products.
- Portable media players.
- Industrial and medical equipment.
- Portable equipment.
Q & A
- What is the BQ24103ARHLRG4 used for?
The BQ24103ARHLRG4 is used for managing the charging of Li-ion and Li-polymer batteries in various portable applications.
- What is the maximum charge current of the BQ24103ARHLRG4?
The maximum charge current of the BQ24103ARHLRG4 is 2A.
- What is the operating temperature range of the BQ24103ARHLRG4?
The operating temperature range is -40°C to 85°C.
- Does the BQ24103ARHLRG4 support battery temperature monitoring?
- What type of package does the BQ24103ARHLRG4 come in?
The BQ24103ARHLRG4 comes in a 20-pin VQFN package.
- Does the BQ24103ARHLRG4 have built-in fault protection?
- Can the BQ24103ARHLRG4 be used in system-controlled applications?
- How does the BQ24103ARHLRG4 manage charge termination?
The BQ24103ARHLRG4 manages charge termination based on a user-selectable minimum current level and a programmable charge timer.
- Does the BQ24103ARHLRG4 have reverse leakage protection?
- What happens when the VCC supply is removed from the BQ24103ARHLRG4?
The BQ24103ARHLRG4 automatically enters sleep mode when the VCC supply is removed.
