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LTC4054ES5-4.2#TRPBF
+NomenclatureIC BATT CHG LI-ION 1CEL TSOT23-5
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FabricantAnalog Equipment GmbH.
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Pièce fabricant #LTC4054ES5-4.2#TRPBF
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Fiche technique LTC4054ES5-4.2#TRPBF DataSheet
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Package SOT-23-5
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En stock7233
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Spécifications
| Attribut | Valeur |
| Package / Case | Tape & Reel (TR),Cut Tape (CT) |
| Part Status | Active |
| Battery Chemistry | Lithium Ion |
| Number of Cells | 1 |
| Current - Charging | Constant - Programmable |
| Charge Current - Max | 800mA |
| Battery Pack Voltage | 4.2V |
| Voltage - Supply (Max) | 6.5V |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount |
Présentation
Description
Key features of the LTC4054 include:
1. Programmable Charge Current: The charge current can be set externally using a single resistor, allowing for customization based on specific battery requirements.
2. 4.2V Regulation Voltage: It provides precise voltage regulation to ensure safe and efficient charging of lithium-ion batteries.
3. No External MOSFETs: The device integrates all required components, reducing the need for external MOSFETs and diodes, thus simplifying the design process.
4. Thermal Regulation: It offers automatic thermal regulation to prevent overheating during the charging process.
5. Automatic Recharge: The charger automatically restarts the charge cycle if the battery voltage drops, ensuring the battery is maintained at optimal charge levels.
These features make the LTC4054ES5-4.2#TRPBF an efficient and versatile choice for battery charging applications.
Equivalent
Features
1. Input Voltage: It supports an input voltage range ideal for USB and wall adapter sources.
2. Charge Termination: The charger has automatic charge termination with a fixed 4.2V output voltage.
3. Charge Current: It provides a programmable charge current via an external resistor, up to 800mA.
4. Safety and Protection: The IC includes features for battery temperature sensing and automatic shutdown if the temperature exceeds safe limits.
5. Status Indication: It offers charge status indication with open-collector outputs to easily interface with LEDs or microcontrollers.
6. Compact Size: The device is available in a small SOT-23 package, ideal for space-constrained applications.
7. Efficiency: The internal switch-mode architecture provides high charging efficiency.
8. Thermal Regulation: It includes thermal regulation to prevent overheating during high-power operation.
These features make it suitable for portable applications where compact size and efficient charging are critical.
Pinout
1. BAT (Pin 1): Battery Connection. It is used to connect the positive terminal of the battery.
2. GND (Pin 2): Ground. This is the ground reference for the device.
3. PROG (Pin 3): Charge Current Program and Charge Current Monitor. A resistor connected from this pin to ground sets the charge current.
4. VCC (Pin 4): Supply Voltage Input. This is where the input voltage is applied.
5. CHRG (Pin 5): Charge Status Output. This open-drain status indicator pin goes low when charging is in progress.
The LTC4054ES5-4.2#TRPBF is designed for applications requiring precise battery charging with minimal external components. It supports features such as automatic recharge, charge status indication, and thermal regulation, providing a complete charging solution for lithium-ion batteries.
Manufacturer
Application
1. Portable Electronics: Used in devices like smartphones, tablets, and wearable technology, where efficient battery management is critical.
2. Battery-Powered Devices: Ideal for MP3 players, digital cameras, and handheld gaming devices.
3. Charging Docks and Stations: Utilized in docking stations for efficient recharging of devices.
4. IoT Devices: Suitable for low-power Internet of Things applications requiring compact and reliable charging solutions.
5. Embedded Systems: Used in embedded applications needing precise charging control.
These applications benefit from the IC’s compact size, simplicity, and efficient charging capabilities.