{"product_id":"tp4057-lithium-ion-battery-charger-ic-sot23-6-compact-low-power-overcharge-protection","title":"TP4057 Lithium-Ion Battery Charger IC – SOT23-6, Compact, Low Power, Overcharge Protection","description":"\u003cdiv class=\"product_info\"\u003e\n\u003ch2 class=\"sing--sub-heading\"\u003e\u003cspan style=\"font-size: 18.72px;\"\u003eTP4057 Lithium-Ion Battery Charger IC – SOT23-6, Compact, Low Power, Overcharge Protection \u003c\/span\u003e\u003c\/h2\u003e\nThe TP4057 is a complete single-cell Li-Ion battery charger with battery positive and negative reverse polarity protection with constant current\/constant voltage linear control. Its SOT26 package and fewer external components make the TP4057 ideal for portable applications. The TP4057 is suitable for USB power and adapter power supplies. Due to the internal PMOSFET architecture and anti-reverse charging path, no external sense resistors and isolation diodes are required. The full voltage is fixed at 4.2V, and the charging current can be externally set by a resistor. current drops to the set value of 1\/10, and the TP4057 will automatically terminate charging.\u003c\/div\u003e\n\u003cdiv class=\"product_info\"\u003e\n\u003ch3 class=\"sing--sub-heading\"\u003eTechnical Details\u003c\/h3\u003e\n\u003cdiv id=\"p_info\"\u003e\n\u003cul class=\"pro-ds\"\u003e\n\u003cli\u003eModel: TP4057\u003c\/li\u003e\n\u003cli\u003ePackage Type: SOT23-6\u003c\/li\u003e\n\u003cli\u003eBattery Type: Single-cell 3.7V Li-ion\/Li-Po\u003c\/li\u003e\n\u003cli\u003eInput Voltage Range: 4V to 8V (USB compatible)\u003c\/li\u003e\n\u003cli\u003eCharge Voltage: 4.24V ±1%\u003c\/li\u003e\n\u003cli\u003eProgrammable Charge Current: Up to 500mA\u003c\/li\u003e\n\u003cli\u003eCharging Method: Trickle → Constant Current → Constant Voltage\u003c\/li\u003e\n\u003cli\u003eTrickle Charge Threshold: 2.9V\u003c\/li\u003e\n\u003cli\u003eCharge Termination: C\/10\u003c\/li\u003e\n\u003cli\u003eStandby Quiescent Current: 25μA\u003c\/li\u003e\n\u003cli\u003eRecharge Threshold Voltage: ~4.1V\u003c\/li\u003e\n\u003cli\u003eStatus Outputs: Dual LED indication for charge, fault, or no battery\u003c\/li\u003e\n\u003cli\u003eSoft-start: Yes, limits inrush current\u003c\/li\u003e\n\u003cli\u003eReverse Polarity Protection: Yes\u003c\/li\u003e\n\u003cli\u003eThermal Regulation: Built-in\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"product_info\"\u003e\n\u003ch3 class=\"sing--sub-heading\"\u003eFeatures\u003c\/h3\u003e\n\u003cdiv id=\"p_info\"\u003e\n\u003cul class=\"pro-ds\"\u003e\n\u003cli\u003eProgrammable charging current up to 500mA\u003c\/li\u003e\n\u003cli\u003eNo need for external MOSFET, sense resistor, or isolation diode\u003c\/li\u003e\n\u003cli\u003eComplete linear charger in compact SOT23-6 package\u003c\/li\u003e\n\u003cli\u003eConstant current \/ constant voltage operation with thermal regulation\u003c\/li\u003e\n\u003cli\u003e4.24V pre-charge voltage with ±1% accuracy\u003c\/li\u003e\n\u003cli\u003eCharge current monitor output for battery power detection\u003c\/li\u003e\n\u003cli\u003eAutomatic recharge when battery voltage drops\u003c\/li\u003e\n\u003cli\u003eDual status outputs for charging, no battery, and fault indication\u003c\/li\u003e\n\u003cli\u003eC\/10 charge termination for safe full charging\u003c\/li\u003e\n\u003cli\u003eLow 25μA quiescent current in standby mode\u003c\/li\u003e\n\u003cli\u003e2.9V trickle charging for deeply discharged batteries\u003c\/li\u003e\n\u003cli\u003eSoft-start function to limit inrush current\u003c\/li\u003e\n\u003cli\u003eReverse polarity protection for battery connection\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"product_info\"\u003e\n\u003ch2 class=\"sing--sub-heading\"\u003e\u003cspan style=\"font-size: 18.72px;\"\u003eApplications \u003c\/span\u003e\u003c\/h2\u003e\n\u003cstrong\u003eUSB Li-ion Battery Chargers:\u003c\/strong\u003e Enable direct charging of single-cell batteries from USB ports without the need for external protection circuitry.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003e18650 and Single-Cell Battery Packs:\u003c\/strong\u003e Ideal for charging standard 3.7V Li-ion cells like 18650, commonly used in flashlights, vapes, and battery banks.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eWearable Electronics:\u003c\/strong\u003e Compact SOT23-6 package makes it suitable for space-constrained wearable designs such as fitness trackers and smart bands.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003ePortable Gadgets and Tools:\u003c\/strong\u003e Used in handheld devices like electric screwdrivers, remote controls, or toys requiring safe and efficient charging circuits.\u003c\/div\u003e\n\u003cdiv class=\"product_info\"\u003e\n\u003ch3 class=\"sing--sub-heading\"\u003ePhysical Attributes\u003c\/h3\u003e\n\u003cdiv id=\"p_info\"\u003e\n\u003cul class=\"pro-ds\"\u003e\n\u003cli\u003eDimensions: ~2.0mm × 2.1mm × 1.0mm(L x W x H)\u003c\/li\u003e\n\u003cli\u003eWeight: ~0.05g\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"product_info\"\u003e\n\u003ch3 class=\"sing--sub-heading\"\u003ePackage Includes\u003c\/h3\u003e\n\u003cdiv id=\"p_info\"\u003e\n\u003cul class=\"pro-ds\"\u003e\n\u003cli\u003e1 x TP4057 Lithium-Ion Battery Charger IC – SOT23-6, Compact, Low Power, Overcharge Protection\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"KitsGuru","offers":[{"title":"Default Title","offer_id":47354443530492,"sku":"INTEG347","price":19.0,"currency_code":"INR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0587\/2130\/4757\/files\/TP4057Lithium-IonBatteryChargerIC_SOT23-6_Compact_LowPower_OverchargeProtection-2.jpg?v=1753251051","url":"https:\/\/kitsguru.com\/es\/products\/tp4057-lithium-ion-battery-charger-ic-sot23-6-compact-low-power-overcharge-protection","provider":"KitsGuru","version":"1.0","type":"link"}