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AW3215ADNR

1.5A Switch-mode Single Cell Li-ion Battery Charger

AW3215A/6 is a highly integrated, switch- mode high efficiency, large current Li-Ion battery charging management chip. Integrated 1.35 MHz synchronous Buck PWM controller and power MOSFETs, effectively reducing the power loss. The charge process of AW3215A/6 includes: activation, trickle, constant current (CC) and constant voltage (CV). The charge process runs automatically and recharge occurs when the battery voltage drops below 4.08V (AW3215A) /4.23V (AW3216). AW3215A/6 includes four loops: constant voltage, constant  current,  K-DPM TM and  K-TEMP TM , controlling the charge current, constant voltage, VBUS voltage and die temperature respectively. The K-DPM TM reduces charge current and adaptively matching USB or small power adapter. The K-Temp TM linearly adjusts charge current according to the die temperature, acquiring maximum charge-rate without overheating. AW3215A/6 is available in DFN 3×3-12L package.

Characteristic

l  Charge Faster than Linear Chargers

l  Charge Voltage Regulation Accuracy: 4.2V±1% (AW3215A)

l  Up to 1.5-A Programmable Charge Rate

l  Specific K-DPMTM: VBUS Based Dynamic Power Management

l  VBUS Pin ESD >8kVHBM

l  Up to 88% Charge Efficiency

l  Specific K-TEMPTM: Thermal Regulation Protection for Output Current Control

l  18V Absolute Maximum VBUS Rating

l  Activation-Trickle-CC-CV Four-stage Automatic Charging Process, Automatic Recharge

l  Available for Software Download and System Start without Battery when NTC pin floated

l  Strong Charge ProtectionVBUS OVP, Minimum VBUS during Charging, Battery OVP, Thermal Shutdown

l  Charge Status Indication

l  DFN 3mm×3mm-12L Package

Datasheet

Application note

Title Type Size Date Download
DS_AW3215A,AW3216_EN_V1.2.1_High Efficiency Switch mode Single Cell Li-Ion Battery Charger.pdf PDF 1.7M 2019-01-11
  • Control Interface
    Operation Mode
    Max Charge Current (A)
    VOREG
    OTG
    Package (mm)
Package form Number of pins Long(mm) Width(mm) Thick(mm) Pin spacing(mm) Heat sink Package drawing
DFN 3.0×3.0×0.75 -12L 12 3.0 3.0 0.75 0.45 Y
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