3 Battery Protection Chips for Iron Lithium Batteries, HTL6033AAG

HTL6033AAG is a protective chip launched by Xi'an Huatai Semiconductor Technology Co., Ltd., specifically designed for 3-series lithium batteries or polymer batteries. Below is an analysis of its features, applications, and the same series models:

HTL6033AAG features

• Comprehensive Protection FeaturesEquipped with high-precision voltage and current detection circuits, it offers over-voltage (OV) protection with accuracy up to ±25mV and under-voltage (UV) protection with accuracy of ±80mV. It also provides discharge over-current (DOC) protection, short-circuit (SC) protection, and charge over-current (COC) protection. It features built-in open-circuit protection, as well as high and low temperature protection for charging and discharging to effectively prevent battery damage due to abnormal temperatures.
• FET Drive CapabilityThe drive circuit integrated with field-effect transistors can directly drive N-type charging and discharging tubes, facilitating control over the battery's charging and discharging process.
• Flexible Protection Delay SettingsBy adjusting the size of the external capacitor, the protection delay times for overcharge, over-discharge, discharge overcurrent 1, discharge overcurrent 2, and charge overcurrent can be set to meet the needs of different application scenarios.
• Low-power characteristicsUnder normal conditions, the current consumption is less than 30μA, and in the power-off state, it is less than 1μA, which helps to extend the battery usage time.
• Miniature packagingThe new product utilizes a 14-pin TSSOP and SOP package, featuring compact size and high integration, making it ideal for space-limited applications.

HTL6033AAG Applications

• Mobile electronic devicesProtects 3-series lithium-ion or polymer lithium-ion batteries for devices like tablets and laptops, preventing damage due to overcharging, over-discharging, or overcurrent, thereby extending battery life and ensuring the safety of the equipment.
• Electric ToolsThe HTL6033AAG protects the battery pack in electric screwdrivers, electric wrenches, and other power tools, ensuring safety and stability during frequent charging and discharging, thereby enhancing the reliability of electric tools.
• Energy Storage EquipmentFor small-scale energy storage systems, such as portable energy storage power supplies, the chip effectively protects three battery strings, preventing various anomalies and ensuring the smooth operation of the energy storage equipment.

Analysis of the same series model

HTL6033AAG's series includes models such as HTL6034AA, HTL6035AA, HTL6036AA, HTL6037AA, and here are some of their feature analyses:

• HTL6034AAProtection for 4 lithium battery cells or polymer lithium battery cells. Compared to HTL6033AAG, it shares similar parameters for overvoltage and undervoltage protection, but has been optimized for battery cell detection and other aspects to suit the application scenario of 4 cells, utilizing a TSSOP-16 package.
• HTL6035AAThis is a dedicated protection chip for 5 lithium-ion or iron-lithium batteries. It features high-precision voltage and current detection as well as various protection functions. The over-discharge detection voltage range is 2.1V - 2.8V, with short-circuit detection voltages of 200mV and 500mV. Utilizing a 16-pin TSSOP package, it better meets the protection requirements of a 5-battery system.
• HTL6036AAProtects 6-cell lithium-ion or polymer lithium-ion batteries. Similar in function to other series products, it is designed specifically for the series application of 6-cell batteries, with adjustments made to voltage detection and protection functions. It features a TSSOP-20 package.
• HTL6037AAThis battery protection chip is suitable for 4 to 7 lithium batteries or lithium iron batteries, offering a wide range of applications. It integrates a field-effect transistor drive circuit, capable of driving N-type charging and discharging tubes. Under normal conditions, it consumes less than 35μA of current. It comes in a 24-pin TSSOP package to meet the diverse protection needs of batteries with different cell counts.

Similar in basic functions, the main differences lie in the number of battery cells they support, as well as slight variations in packaging and some parameters, to meet the protection needs of lithium-ion or polymer lithium-ion batteries under different application scenarios.