0.4-18V; 500mW; secondary, off-line battery changer controller. For battery changer controlled for: lilon batteries (ADP3810) NiCad, NiMH batteries (ADP3811) The ADP3810AR-8.4 is a precision shunt regulator manufactured by Analog Devices Inc. (ADI). It is designed to provide a fixed 8.4V reference voltage with high accuracy. Key specifications include:

- **Output Voltage:** 8.4V
- **Tolerance:** ±1%
- **Operating Temperature Range:** -40°C to +85°C
- **Supply Voltage Range:** 2.5V to 18V
- **Quiescent Current:** 60µA (typical)
- **Package:** 8-lead SOIC
- **Applications:** Battery chargers, power supplies, and voltage regulation circuits.

The device is designed for low-power applications and offers stable performance over a wide range of operating conditions.