onsemi ADP3808A
The ADP3808A is a complete Li-Ion battery charging controller for 3− or 4−cell battery packs. The device combines accurate final battery charge voltage control with constant current control to simplify the implementation of constant-current, constant-voltage (CCCV) chargers. The final battery charge voltage is programmable between 4.0 V to 4.5 V per cell, allowing the charging of various cell types.| Part No. | ADP3808A |
|---|---|
| Datasheet | ADP3808A Download |
| Manufacturer |  onsemi |
| Description | High Efficiency Switch Mode Li-Ion Battery Charger |
| Buy | Stock & Price |
FEATURES
● Selectable 3−Cell or 4−Cell Operation● Adjustable 4.0 V to 4.5 V Per Cell
● High End-of-Charge Voltage Accuracy ♦ ±0.4% @ 25°C ♦ ±0.6% @ 5°C to 55°C ♦ ±0.8% @ 0°C to 100°C
● Programmable Charge Current, Including Trickle Charge
● Bootstrapped Synchronous Drive for External N−Channel MOSFETs
● Programmable Oscillator Frequency
● This is a Pb−Free Device
APPLICATIONS
● Portable Computers● Portable Equipment BATADJ 7 EN 8 COMP 9 AGND 10 BAT 11 CELLSEL 12 LFCSP24 CASE 932AG MARKING DIAGRAM ADP 3808A JPZ #YYWW xx = Device Code # = Pb−Free Package YYWW = Date Code PIN ASSIGNMENT 24 SYSP 23 SYSM 22 VCC 21 SW 20 DRVH 19 BST ISYS 1 LIMSET 2 LIMIT 3 EXTPWR 4 RT 5 REFIN 6 ADP3808A TOP VIEW (Not to Scale) 18 DRVREG 17 DRVL 16 PGND 15 CSP 14 CSM 13 CSADJ ORDERING INFORMATION Device* Package Shipping† ADP3808AJCPZ−RL LFCSP24 5000/Tape & Reel *The “Z’ suffix indicates Pb−Free package. †For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specifications Brochure, BRD8011/D. © Semiconductor Components Industries, LLC, 2009 1 January, 2009 − Rev.
