RT9534

RT9538 : ® RT9538 High Efficiency Switching Mode Battery Charger General Description The RT9538 is a PWM switch mode battery charger controller to fast charge single or multiple Li-ion, NiMH and NiCd batteries, using constant current or constant voltage control. Maximum current can be easily adjusted by an external resistor. The constant voltage output can support up to 30V with 0.5% accuracy. A third control loop limits the input current drawing from the adapter during charging. This allows simultaneous operation of the equipment and fast battery charging without over loading to the adapter. The RT9538 can charge batteries from 2.5V to 25V with dropout voltage as low as 2V. A diode is not required.

RT9536H : ® RT9536H Linear Single Cell Li-Ion Battery Charger IC for Portable Applications General Description The RT9536H is a fully integrated single cell Li-ion battery charger IC ideal for portable applications. The RT9536H optimizes the charging task by using a control algorithm including pre-charge mode, fast charge mode and constant voltage mode. The input voltage range of the VIN pin can be as high as 28V. When the input voltage exceeds the OVP threshold, it will turn off the charging MOSFET to avoid overheating of the chip. In RT9536H, the maximum charging current can be programmed with an external resistor. For USB application, the user can set the current to 100mA/500mA through the EN/SET.

RT9535B : RT9535B High Efficiency Switching Mode Battery Charger General Description The RT9535B is a PWM switch mode battery charger controller to fast charge single or multiple Li-Ion, NiMH and NiCd batteries, using constant current or constant voltage control. Maximum current can be easily programmed by external resistor. The constant voltage output can support up to 22V with 0.5% accuracy. A third control loop limits the input current drawing from the adapter during charging. This allows simultaneous operation of the equipment and fast battery charging without over loading to the adapter. The RT9535B can charge batteries from 2.5V to 22V with dropout voltage as low as 0.4V. A logic output indica.

RT9535A : RT9535A High Efficiency Switching Mode Battery Charger General Description The RT9535A is a PWM switch mode battery charger controller to fast charge single or multiple Li-Ion, NiMH and NiCd batteries, using constant current or constant voltage control. Maximum current can be easily programmed by external resistor. The constant voltage output can support up to 22V with 0.5% accuracy. A third control loop limits the input current drawing from the adapter during charging. This allows simultaneous operation of the equipment and fast battery charging without over loading to the adapter. The RT9535A can charge batteries from 2.5V to 22V with dropout voltage as low as 0.4V. The RT9535A is availa.

RT9535 : RT9535 High Efficiency Switching Mode Battery Charger General Description The RT9535 is a PWM switch mode battery charger controller to fast charge single or multiple Li-Ion, NiMH and NiCd batteries, using constant current or constant voltage control. Maximum current can be easily programmed by external resistor. The constant voltage output can support up to 22V with 0.5% accuracy. A third control loop limits the input current drawing from the adapter during charging. This allows simultaneous operation of the equipment and fast battery charging without over loading to the adapter. The RT9535 can charge batteries from 2.5V to 22V with dropout voltage as low as 0.4V. A logic output indicates.