BQ24600RVAT
Synchronous switch-mode battery charger for Li-Ion/Li-Pol management
Manufacturer： ti
series introduction
# BQ24600RVAT Product Series Introduction
## 1. Overview
The BQ24600RVAT is a highly advanced and versatile product series developed by Texas Instruments, designed specifically for battery charging and power management applications. This integrated circuit offers a comprehensive set of features and capabilities that make it an ideal choice for a wide range of portable and battery - powered devices.
## 2. Key Features
### 2.1 High - Efficiency Charging
- The BQ24600RVAT incorporates a high - efficiency switching charger topology. It can achieve high charging efficiencies, typically up to 90% or more. This high efficiency helps to minimize power losses during the charging process, reducing heat generation and extending the battery life. For example, in a mobile device, less power wasted as heat means the device can operate cooler and the battery can be charged more quickly without overheating.
- It supports a wide input voltage range, from 4.5V to 28V. This flexibility allows it to be used with various power sources, such as wall adapters, USB ports, and solar panels. Whether you are charging a device from a standard 5V USB charger or a higher - voltage power supply, the BQ24600RVAT can adapt and provide efficient charging.
### 2.2 Battery Management
- It offers precise battery charging control. The device can accurately regulate the charging current and voltage, ensuring that the battery is charged safely and optimally. For lithium - ion batteries, it can perform pre - charge, fast - charge, and trickle - charge phases automatically. During the pre - charge phase, it provides a small current to bring a deeply discharged battery to a safe voltage level. Then, in the fast - charge phase, it delivers a higher current to quickly charge the battery. Finally, the trickle - charge phase maintains the battery at full charge without overcharging.
- The BQ24600RVAT also includes battery temperature monitoring. It can sense the temperature of the battery and adjust the charging parameters accordingly. If the battery temperature is too high or too low, the charger will reduce the charging current or even stop charging to prevent damage to the battery.
### 2.3 Power Path Management
- This product series features intelligent power path management. It allows the system to operate from the input power source while simultaneously charging the battery. For example, in a tablet device, when it is connected to a power adapter, the device can use the power from the adapter directly for its operation, and at the same time, the battery is being charged. If the input power source is removed, the system can seamlessly switch to the battery power without any interruption in operation.
- It also supports system power boost. In some cases, when the system requires more power than the input source can provide, the BQ24600RVAT can use the battery power to supplement the input power, ensuring stable operation of the device.
### 2.4 Protection Features
- Over - voltage protection (OVP) is built - in to safeguard the device and the battery from excessive input voltage. If the input voltage exceeds a certain threshold, the charger will shut down to prevent damage.
- Over - current protection (OCP) protects the charger and the battery from excessive charging current. It limits the current to a safe level, preventing overheating and potential damage to the battery and the charging circuit.
- Short - circuit protection is also provided. In case of a short - circuit in the charging path, the device will quickly shut off the charging current to prevent any safety hazards.
## 3. Package and Pinout
The BQ24600RVAT comes in a small - outline package (SOIC), which is a common and easy - to - handle package type. The
Images for reference
16-VFQFN
16-VQFN (exposed pad)
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