LP28009-84SPF

Preliminary Datasheet LP28009 Single and Dual Cell Li+ Battery Charger IC –LP28009 General Description Features The LP28009 is a fully integrated low cost single-cell and dual cell Li-Ion battery charger IC ideal for portable applications. The LP28009 is capable of being powered up from AC adapter. The LP28009 enters sleep mode when AC adapter is removed. The LP28009 optimizes the charging task by using a control algorithm including preconditioning mode, fast charge mode and constant voltage mode. The charging task is terminated as the charge current drops below the preset threshold. The AC adapter charge current can be programmed up to 1.2A with an external resister. The internal thermal feedback circuitry regulates the die temperature to optimize the charge rate for all ambient temperatures. The LP28009 features 18V maximum rating voltages for AC adapter. The other features are under voltage protection, over voltage protection for AC adapter supply and battery temperature monitoring.  18V Maximum Rating for AC Adapter  Internal Integrate P-MOSFETs  AC Adapter Power Good Status Indicator  Charge Status Indicator  Under Voltage Protection  Over Voltage Protection  Automatic Recharge Feature  Battery Temperature Monitoring  Small 8-Lead SOP(EP) Package  Thermal Feedback Optimizing Charge Rate  ROHS Compliant and 100% Lead (Pb)-Free Marking Information Device Marking LP28009 Package Shipping SP:SOP-8 3K/REEL Order Information LP28009 □ □ □ □ □ F: Pb-Free Package Type Typical Application Circuit VIN 1 SP: SOP-8(EP) RED Output Voltage 2 3 4 42: 4.2V 10uF 9 84: 8.4V ACIN CHRG_S BATT NC 8 7 10uF PGOOD GND GND ISETA EN 5 BATTERY 6 LP28009-42SPF I/O CTRL Q1 LPM9013 Applications  Portable Media Players/MP3 players    Cellular and Smart mobile phone PDA/DSC Bluetooth Applications VIN 1 RED 2 3 4 10uF 9 ACIN CHRG_S BATT NC 8 7 10uF PGOOD GND ISETA GND EN BATT 5 6 LP28009-84SPF I/O CTRL Q8 LPM9013 LP28009 – 02 May.-2013 Email: marketing@lowpowersemi.com www.lowpowersemi.com Page 1 of 12 Preliminary Datasheet LP28009 Functional Pin Description P ac k age T y pe P in C onf ig ur ati ons ACIN 1 8 BATT CHG_S 2 ESOP- 8 9 PGOOD 3 PGND 7 NC 6 EN 5 ISETA GND 4 Pin Description P in N o P in N ame P in F unc tion 1 AC I N 2 C H G_ S C har ge Status Indic ator O utput(O pen Dr ain) . 3 PG O OD Pow er G ood Indic ator O utput( O pen dr ain) . 4 GND 5 I SET A 6 EN C har ge E nable Input( ac tiv e low ) . 7 NC N o I nter nal C onnec tion. Wall Ad aptor C har ge Input Supply . G r ound. Wall Adaptor s upply c har ge c urr ent Set point. Bat t er y C har ge C ur r ent O utput. T his pin pr ov ides c har ge c ur r ent to the battery and 8 BAT T r egulates the final float v oltage to 4.2 or 8.4V. An int er nal pr ec is ion r es istor div ider fr om this pin s ets the f loat v oltage w hic h is disc onnec ted i n s hutdow n mode. 9 ( Ex pos ed Ex pos ed Pad Should be s older ed to PC B Boar d and PG N D C onnec ted to G N D . Pad) Note: LP28009-42SPF and LP28009-84SPF of LP28009 – 02 May.-2013 Battery (Pin8) is output pin, the pin connector to Battery. Email: marketing@lowpowersemi.com www.lowpowersemi.com Page 2 of 12 Preliminary Datasheet LP28009 Function Block Diagram LP28009 – 02 May.-2013 Email: marketing@lowpowersemi.com www.lowpowersemi.com Page 3 of 12 Preliminary Datasheet LP28009 LP28009-42 Flow Chart LP28009 LP28009 – 02 May.-2013 Email: marketing@lowpowersemi.com www.lowpowersemi.com Page 4 of 12 Preliminary Datasheet LP28009 Absolute Maximum Ratings VIN, VBATT, VCHGSB, VPGOOD, VEN --------------------------------------------------------------------- -0.3V to 15V Storage Temperature Range------------------------------------------------------------------------------------ -65℃ to 150℃ VISETA --------------------------------------------------------------------------------------------------------------- -0.3V to 3.6V Junction Temperat ure (TJ) ---- ---------------- ----------------- ------------ ------------------------ ---- 150℃ Lead Temperature (soldering,10 sec.) -------------------------------------------------------------------------------------- 260℃ Operating Ratings Supply Voltage --------------------------------------------------------------------------------------------------------------- 9V to 13.5V Thermal Resistance(θJA) ------------------------------------------------------------------------------------------------------- 46℃/W Operating Temperature Range -------------------------------------------------------------------------------------- -40℃ to 85℃ Electrical Characteristics (TA=25℃, VIN=10V; unless otherwise specified.) Symbol VIN Icc Parameter Input Operating Conditions Voltage Range Input Supply Current Min Typ Max Units 9 10 13.5 V Charge Mode.RSET=30K 300 uA Standby Mode (Charge Terminated) 250 UA 190 uA Shutdown Mode (RSET Not Connected VIN < VBATT or VIN < Vuv) VFLOAT Regulated Output(Float) 0℃ ≤ TA ≤ 85℃ 8.316 Voltage RSET=1.5k,Current Mode RSET=0.75k,Current Mode IBATT ITRICKLE VTRICKLE VTRHYS VMSD VASD LP28009 – 02 BATT Pin Current Trickle Charge Current Trickle Charge Threshold 8.484 V 500 mA 1000 mA Standby Mode, VBATT=8.4V -1 0 1 uA Shutdown Mode -1 0 1 uA Sleep Mode, VIN=0V -1 0 1 uA VBATT