> 3.2 | Sample Application with Referencing Charging Circuit

> The reference charging circuit shown in Figure 4 assumes that the charger has the following parameters:

> • | Output voltage: 5.2Volts ±0.2V (stabilized voltage). AC75i, MC75i, TC63i and TC65i accept voltages up to 7V.

> • | Output current: 500mA Chargers with a higher output current are acceptable, but please consider that only 500mA will be applied when a 0.3Ohms shunt resistor is connected between VSENSE and ISENSE. For using chargers with higher output current see Section 6.2.

> Figure 4: Sample application based on the MC75 module
> Note: Charging circuits for host applications incorporating other modules listed above can be designed in the same way.
> Disclaimer
> No warranty, either stated or implied, is provided on the sample schematic diagram shown in Figure 4 and the information detailed in this section. As functionality and compliance with national regulations depend to a great amount on the used electronic components and the individual application layout manufacturers are required to ensure adequate design and operating safeguards for their products using Siemens GSM modules.