Description

The ADP3820ART-4.2RL7 is an IC chip that belongs to the category of electronic components. It is a precision single-cell Li-Ion battery charge controller, commonly used in low cost, low dropout linear battery chargers, and can be used with an external Power PMOS. It is available in two voltage options to accommodate Li-Ion batteries with coke or graphite anodes. The ADP3820ART-4.2RL7’s high accuracy (±1%), low shutdown current (1 μA), and programmable charge current make it an ideal choice for battery charge control applications.

Specifications and features

• ±1% Total Accuracy
• 630 μA Typical Quiescent Current
• Shutdown Current: 1 μA (Typical)
• Stable with 10 μF Load Capacitor
• 4.5 V to 15 V Input Operating Range
• Integrated Reverse Leakage Protection
• 6-Lead SOT-23-6 and 8-Lead SO-8 Packages
• Programmable Charge Current
• –20°C to +85°C Ambient Temperature Range
• Internal Gate-to-Source Protective Clamp

Application Scenarios

The ADP3820ART-4.2RL7 IC chip is commonly used in the following applications:

• Li-Ion Battery Chargers
• Desktop Computers
• Hand-Held Instruments
• Cellular Telephones
• Battery Operated Devices

Comparison

• High accuracy (±1%) and programmable charge current make it an ideal choice for battery charge control applications.
• Low shutdown current (1 μA) can help reduce energy consumption.
• Integrated reverse leakage protection adds an additional layer of safety to the charging process.
• Operating temperature range from –20°C to +85°C makes it suitable for use in a wide range of environments.

• It requires an external Power PMOS device to form a two-chip system.