DIO5508H

The DIO5508H is a complete constant-current / constant voltage linear charger for single cell Lithium-Ion batteries. No external sense resistor is needed, and no blocking diode is required due to the internal MOSFET architecture. The charge voltage is fixed at 4.2V, and the charge current can be programmed externally with a single resistor. The DIO5508H automatically terminates the charge cycle when the charge current drops to 1/10 the programmed value after the final float voltage is reached. When the input supply (wall adapter or USB supply) is removed, the DIO5508H automatically enters a low current state, dropping the battery drain current to less than 0.5µA. The DIO5508H can be put into shutdown mode, reducing supply current to 40µA (Typ.). The DIO5508H is available in DFN2*2-8 packages.

Product attributes
Working voltage (min) (V): 4.5
Working voltage (max) (V): 5.5
Charging end current (μ A): 136
Maximum charging current (A): 0.6
Absolute maximum voltage (V): 10
Overvoltage protection threshold (V): 6
Battery charging voltage (V): 4.2
Charging threshold (V): 4.05
Drip threshold (V): 2.9
Control interface: IO
NTC port: Y
Features: OVP/OTP/SCP/PG