ia3513 integration, ia3513 Datasheet - Page 4

• Manufacturer Part Number: ia3513
• Description: Headset Voice And Power Solution
• Manufacturer: integration

BATTERY CHARGER
Description
The high-accuracy battery charger supports Li-Ion or Li-Pol batteries. No external FETs, current sensing resistor, or reverse-
blocking diode are required. The circuit permits pre-charge for deeply discharged batteries, constant current charging followed
by constant voltage and charge termination by minimum current.
Protection schemes include maximum and minimum voltage, as well as time-out termination for added safety. IC temperature is
also monitored, allowing temperature fold-back and shutdown. The charger automatically starts charging cycles when the AC
adaptor or USB are plugged-in, and shuts down when removed.
Battery status monitor is included. Charge status is available through register read.
Functional Block Diagram
Temperature
FoldBack
Control
Charger
Control
SCdac ctrl
-
REF
+
iBAT
R1
+ -
vCHARGER
REF
vBATo
Bat
IA3513
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