Electronic Components Datasheet Search |
|
MP2602 Datasheet(PDF) 8 Page - Monolithic Power Systems |
|
MP2602 Datasheet(HTML) 8 Page - Monolithic Power Systems |
8 / 10 page MP2602 – 28V, 1A LINEAR LI-ION BATTERY CHARGER WITH TRICKLE CHARGE MP2602 Rev.1.3 www.MonolithicPower.com 8 1/25/2010 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. © 2010 MPS. All Rights Reserved. Charge Status Indicator (CHG) The MP2602 has an integrated charge status pin that remains low while the battery is charging. Once the charge current has reduced to the battery full charge current threshold (IBF), the CHG pin will become high impedance. Under full charge conditions, certain systems may draw a very narrow current pulse that exceeds the IBF threshold. The CHG indicator may glitch. It is desirable to blank the CHG glitch so that the system can properly indicate full charge conditions to the end user. A simple solution is to add a RC filter on the CHG pin to filter out the possible CHG glitch, as shown in Figure 5. Negative Thermal Coefficient (NTC) Thermistor The MP2602 has a built-in NTC resistance window comparator. If configured as the typical application circuit as indicated in Figure 1, the MP2602 will cease charging if RNTC<32.3kΩ or RNTC>376.6kΩ. This represents a valid charging temperature range of 0°C to 50°C for the TH11-4H104F NTC resistor. Thermal Protection The MP2602 has proprietary thermal protection to prevent the IC from overheating. When in thermal protection mode, the charge current becomes a saw-tooth waveform instead of a DC current. The average current of the saw- tooth waveform will be lower than the programmed DC charge current to prevent the IC from overheating. The frequency and amplitude of the saw-tooth current waveform can be altered by changing the capacitance value connected to the SS pin. Operating in thermal protection mode will slow down the charging process. Lowering the input voltage and enhancing thermal dissipation to the environment can effectively prevent the IC from going into thermal protection mode. MP2602 BATT ISET IBF SS GND 10 9 8 7 6 IN CHG ACOK EN NTC 1 2 3 4 5 JP4 JP1 JP2 JP3 VIN BAT GND GND CHG ACOK EN NTC Figure 5—Filtered Charge Status with GPIO Connection |
Similar Part No. - MP2602 |
|
Similar Description - MP2602 |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.COM |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Datasheet Upload | 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 |