Electronic Components Datasheet Search |
|
MAX8808Y Datasheet(PDF) 6 Page - Maxim Integrated Products |
|
MAX8808Y Datasheet(HTML) 6 Page - Maxim Integrated Products |
6 / 13 page 1A Linear Li+ Battery Chargers with Integrated Pass FET and Thermal Regulation in 2mm x 2mm TDFN 6 _______________________________________________________________________________________ Detailed Description The MAX8808X/MAX8808Y/MAX8808Z chargers use voltage, current, and thermal-control loops to charge a single Li+ cell and protect the battery (Figure 1). When a Li+ battery with a cell voltage below 2.5V is inserted, the MAX8808X charger enters the prequalification stage where it precharges that cell with 10% of the user-programmed fast-charge current (Figure 2). The CHG indicator output is driven low to indicate entry into the prequalification state. When battery voltage exceeds 2.5V, the charger soft-starts as it enters the fast-charge stage. In the MAX8808X/MAX8808Y/ MAX8808Z, the fast-charge current level is pro- grammed through a resistor from ISET to GND. As the battery voltage approaches 4.2V, the charging current is reduced. If the battery current drops to less than 10% of the fast-charging current, the CHG indicator goes high impedance, signaling that the battery is fully charged. The ICs then enter a constant voltage-regula- tion mode to maintain the battery at full charge. MAX8808X MAX8808Y MAX8808Z IN ISET VL IREF CHG EN (MAX8808Y) GND BATT 1 µF ACOK TEMP SENSOR OUTPUT DRIVER, CURRENT SENSE, AND LOGIC VL REF OK 0.47 µF 100k Ω 2.8k Ω VI/O 1 µF 4.25V TO 15V OVP UVLO LOGIC IN ON VREF +115 °C BATT IN IN REF N 100k Ω VI/O EN (MAX8808X/ MAX8808Z) 200k Ω Figure 1. Functional Diagram |
Similar Part No. - MAX8808Y |
|
Similar Description - MAX8808Y |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.NET |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |