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LEON-G100/G200 - System Integration Manual

GSM.G1-HW-09002-C Preliminary System description

Page 21 of 75

Figure 7: Description of the VCC current consumption profile versus time when the module is registered with the network: the

module is in idle mode and periodically wakes up to active mode to monitor the paging channel for paging block reception

1.5.3 Battery charger (LEON-G200 only)

For battery charging functionalities the module is provided with integrated circuitry and software. Two pins are

available to connect the positive pole of the external DC supply used as charger.

Name

Description

Remarks

V_CHARGE

Charger Voltage Supply Input

V_CHARGE and CHARGE_SENSE pins must be externally

connected.

CHARGE_SENSE

Charger Voltage Measurement Input

V_CHARGE and CHARGE_SENSE pins must be externally

connected.

Table 4: Battery charger pins

The V_CHARGE pin is the charger supply input. The CHARGE_SENSE pin is connected to an internal ADC

converter to measure the charging voltage.

The V_CHARGE and CHARGE_SENSE pins must be externally connected together as shown in Figure 8.

~150 mA

500-700 uA

8-10 mA

20-22 mA

~150 mA

0.44-2.09 s

~30 ms

Active Mode

Enabled

Idle Mode

Enabled

PLL

Enabled

RX+DSP

Enabled

IDLE MODE ACTIVE MODE IDLE MODE

IDLE MODE

~30 ms

ACTIVE MODE

~150 mA

500-700 uA

8-10 mA

20-22 mA

~150 mA

0.44-2.09 s

~30 ms

Active Mode

Enabled

Idle Mode

Enabled

PLL

Enabled

RX+DSP

Enabled

IDLE MODE ACTIVE MODE IDLE MODE

IDLE MODE

~30 ms

ACTIVE MODE

1 2 ... 16 17 18 19 20 21 22 23 24 25 26 ... 74 75

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