LTC4085EDE#TRPBF

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

The LTC4085EDE#TRPBF is a high performance battery charger from Linear Technology. Specifically, it is a low-dropout linear charger and voltage regulator that is capable of both battery-charging and voltage regulation for up to 4 cells in series. This device operates over a wide input voltage range of 4.5 V to 39 V and is capable of producing up to 4 A of charge current.

The LTC4085EDE#TRPBF is part of Linear Technology\'s PMIC - Battery Chargers product line. This PMIC device is designed to be used in a wide range of portable and handheld applications, including industrial, medical and consumer products. It has been designed to reduce the size and cost of a circuit while meeting the needs of portable applications.

Features and Benefits

The LTC4085EDE#TRPBF has a number of features and benefits that make it an ideal solution for portable applications. These include:

• Wide input voltage range: 4.5 V to 39 V
• High charge current: up to 4 A
• Integrated protection features: reverse blocking, reverse current and over-voltage protection
• Built-in reverse blocking: blocks reverse current flow
• Thermal Foldback and Over-Temperature Protection: reduces charge current to protect the system from thermal overload
• Programmable Charge Termination Voltage
• Programmable Charge Termination Current
• No MOSFET needed for reverse blocking
• Dual Inputs for a Float Mode for Stand-Alone Applications

Application Field and Working Principle

The LTC4085EDE#TRPBF is typically used in portable and mobile applications, such as laptop computers, PDAs, digital cameras, mobile phones, music players and other handheld devices. Its wide input voltage range and high output current capability makes it suitable for a variety of applications. This device is also capable of being used as both a battery charger and voltage regulator in a single device.

The working principle of the LTC4085EDE#TRPBF is based on the N-channel forward conducting MOSFET. The chip contains two high side N-channel MOSFETs, one for the regular switching mode and one for the Reverse Current Blocking Mode. The internal P-channel MOSFET is used to control the output voltage. The IC uses constant voltage/constant current control to regulate the output voltage and regulate the over current protection. The chip also has a programmable charge termination current and a programmable charge termination voltage.

The LTC4085EDE#TRPBF is designed with a Dual input pin for a float mode. If a second power supply is connected to the device, the device automatically switches to a float mode. The float mode allows the device to keep the output voltage constant and prevents the battery from overcharging. The internal thermnal foldback/over-temperature protection circuit protects the device from overheating by reducing the output current when the case temperature exceeds a certain threshold.

Conclusion

The LTC4085EDE#TRPBF is a high performance battery charger and voltage regulator for up to 4 cells in series. It is designed for use in portable and handheld applications, and offers a wide input voltage range, high charge current and built-in protection features. The device also has a dual input pin for a float mode, and a thermal foldback/over-temperature protection circuit. This makes it an ideal solution for portable applications that require a high performance, cost-effective and reliable charger or voltage regulator.

The specific data is subject to PDF, and the above content is for reference