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首页 > Products > Battery Charging Chip > Lithium Charging Chip > Single Lithium Battery Charging Chip >5V AC adapter 3A synchronous step-down lithium-ion battery charger 800KHz fixed frequency synchronous step-down converter anti-reverse irrigation output short circuit battery temperature protection CXLB73187
5V AC adapter 3A synchronous step-down lithium-ion battery charger 800KHz fixed frequency synchronous step-down converter anti-reverse irrigation output short circuit battery temperature protection CXLB73187

CXLB73187 is a 3A Li-ion battery charger for 5V AC adapter. It is a synchronous step-down converter with a fixed frequency of 800KHz, so it has a charging efficiency of more than 92% and generates very little heat.
The CXLB73187 includes a complete charging termination circuit, automatic recharging and a 4.35V preset charging voltage with an accuracy of ± 1%. It integrates multiple functions such as anti-flooding protection, output short circuit protection, chip and battery temperature protection.
The CXLB73187 is in a heatsink SOP8 package and requires minimal peripheral components, so it can be embedded in a variety of handheld applications as an efficient charger for high-capacity batteries

5V AC adapter 3A synchronous step-down lithium-ion battery charger 800KHz fixed frequency synchronous step-down converter anti-reverse irrigation output short circuit battery temperature protection CXLB73187
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  1. 1.Product overview       2.Product Features     I7u嘉泰姆

  2. 3.Scope of application       4.Technical Specification Download(PDF Document)I7u嘉泰姆

  3. 5.Product packaging       6.Circuit schematic  I7u嘉泰姆
    7.Related ProductsI7u嘉泰姆

Product overview

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CXLB73187 is a 3A Li-ion battery charger for 5V AC adapter. It is a synchronous step-down converter with a fixed frequency of 800KHz, so it has a charging efficiency of more than 92% and generates very little heat.I7u嘉泰姆

The CXLB73187 includes a complete charging termination circuit, automatic recharging and a 4.35V preset charging voltage with an accuracy of ± 1%. It integrates multiple functions such as anti-flooding protection, output short circuit protection, chip and battery temperature protection.I7u嘉泰姆

The CXLB73187 is in a heatsink SOP8 package and requires minimal peripheral components, so it can be embedded in a variety of handheld applications as an efficient charger for high-capacity batteriesI7u嘉泰姆

   Product FeaturesReturn to TopI7u嘉泰姆

■ 800KHz fixed switching frequencyI7u嘉泰姆
■ Up to 92% + Output EfficiencyI7u嘉泰姆
■ Maximum 3.5A adjustable output currentI7u嘉泰姆
■ Automatic input current recognition, adapter adaptiveI7u嘉泰姆
■Adjustable output voltageI7u嘉泰姆
■ No need for high-precision milliohm resistorsI7u嘉泰姆
■ No back-current protection diode requiredI7u嘉泰姆
■ No external power MOS tube or freewheeling diode requiredI7u嘉泰姆
■ 4.35V charging voltage with an accuracy of ± 1%I7u嘉泰姆
■ Charging status dual output, no battery and fault status displayI7u嘉泰姆
■ 70uA supply current in standby modeI7u嘉泰姆
■ 2.9V trickle chargeI7u嘉泰姆
■ Soft start limits inrush currentI7u嘉泰姆
■ Battery temperature monitoring functionI7u嘉泰姆
■ Output short circuit protection functionI7u嘉泰姆
■ In an 8-pin SOP packageI7u嘉泰姆

   Scope of applicationReturn to TopI7u嘉泰姆

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MP3, MP4 playerI7u嘉泰姆
Digital CameraI7u嘉泰姆
electronic dictionaryI7u嘉泰姆
 GPSI7u嘉泰姆
Portable devices, various chargersI7u嘉泰姆

   Technical Specification (Product PDF)Return to Top I7u嘉泰姆

If you need detailed PDF specifications, please scan WeChat and contact us. You can also get free samples and technical support.!I7u嘉泰姆

      QQ截图20160419174301.jpgI7u嘉泰姆

   Product packaging diagramReturn to TopI7u嘉泰姆

  I7u嘉泰姆

   Circuit schematicReturn to TopI7u嘉泰姆

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  Related Chip Selection GuideReturn to Top                     More products.....I7u嘉泰姆

Power Management> Charging Management
Product Name Product Type Charging current Indicator light Battery voltage Charging efficiency Input voltage Switching frequency Quiescent current Accuracy Encapsulation form Note
CXLB73187 Switch 3.5A 2 4.35V 92% 5V 800KHz 70uA ±1% SOP8 Input supply voltage (VIN):-0.3V ~ 6.5V
CXLB73188 Switch 3.5A 2 4.2V 92% 5V 800KHz 70uA ±1% SOP8 Input supply voltage (VIN):-0.3V ~ 6.5V
CXLB73189 Switch 2.5A 2 4.2V 90% 5V 550kHz 20uA ±1% DFN3x3-10L Input voltage protection up to 26V
CXLB73190 Switch 1.5A 2 8.4V 92% 5V 750KHz 20uA ±1% QFN4x4-16L Up to 22V Input Voltage Protection
CXLB73191 Switch 1.0A 2 12.6V 92% 5V 650kHz 20uA ±1% QFN4x4-16L Up to 20V Input Voltage Protection
CXLB73192 Switch 2.7A 2 4.2V 90% 5V 550kHz 20uA ±1% DFN3x3-10L Maximum working voltage 6.0V, withstand voltage 28V
CXLB73193 Linear 1.0A 2 4.2V 92% 5V   5uA ±1% DFN3*3-8L ESOP8 Input withstand voltage of up to 28V
CXLB73194 Linear 600mA 2 4.2V 92% 4.0~6.0V 5uA ±1% SOT-23-6L Input withstand voltage of up to 28V
CXLB7260B Switch 2A 2 4.2V 90% 5V 1.5MHz 140uA ±1% SOP/MSOP-8 Input supply voltage (VIN):-0.3V ~ 6.5V
CXLB73195 Switch 2.5A 2 12.6V 92% 6.8~28V 300KHz 750uA ±1.0% TSSOP-14L Input power supply voltage 60V three or four multi-type lithium battery or lithium iron phosphate
CXLB73196 Linear 1.0A 2 4.2V 92% 5V   2uA ±1% ESOP8/MSOP Input withstand voltage of up to 30V
CXLB7260C Switch 2.5A 2 4.35V 90% 5V 1.5MHz 140uA ±1% ESOP8 MSOP8 Input supply voltage (VIN):-0.3V ~ 6.5V
CXLB73197 Switch 2A 2 4.2V 90% 5V 1.5MHz 140uA ±1% DFN8 2A Li-ion battery charger to 5V AC adapter
CXLB7295 Linear 1.0A 2 4.2V 90% 5V   2uA ±1% ESOP8/MSOP Constant Current/Constant Voltage Linear Charger
CXLB73198 Linear 800mA 2 4.2V 90% 5V   2uA ±1%  SOT-23-6L Single-cell lithium battery constant current constant voltage linear charging IC
CXLB7249 Linear 800mA 2 4.2V 90% 5V   2uA ±1% SOT-23-5L Single-cell lithium battery constant current constant voltage linear charging IC

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