GENERAL DESCRIPTION
The ADP3810 and ADP3811 combine a programmable current
limit with a battery voltage limit to provide a constant current,
constant voltage battery charger controller. In secondary side,
off-line applications, the output directly drives the diode side of
an optocoupler to give isolated feedback control of a primary
side PWM. The circuitry includes two gain (gm) stages, a precision 2.0 V reference, a control input buffer, an Undervoltage
Lock Out (UVLO) comparator, an output buffer and an overvoltage comparator.

FEATURES
   Programmable Charge Current
   High Precision Battery Voltage Limit
   Precision 2.000 V Reference
   Low Voltage Drop Current Sense: 300 mV Full Scale
   Full Operation in Shorted and Open Battery Conditions
   Drives Diode-Side of Optocoupler
   Wide Operating Supply Range: 2.7 V to 16 V
   Undervoltage Lockout
   SO-8 Package
   ADP3810
      Internal Precision Voltage Divider for Battery Sense
      Four Final Battery Voltage Options Available: 4.2 V,
      8.4 V, 12.6 V, 16.8 V
   ADP3811
      Adjustable Final Battery Voltage
  
APPLICATIONS
   Battery Charger Controller for:
      LiIon Batteries (ADP3810)
      NiCad, NiMH Batteries (ADP3811)