Power Output; Battery Charge And Management - Quectel SC600Y-EM Series Hardware Design

3.7. Power Output

SC600Y&SC600T support output of regulated voltages for peripheral circuits. During application, it is
recommended to use parallel capacitors (33pF and 10pF) in the circuit to suppress high frequency noise.
Table 8: Power Description
Pin Name
LDO5_1P8
LDO6_1P8
LDO10_2P8
LDO17_2P85
LDO2_1P1
LDO22_2P8
LDO23_1P2
SD_LDO12
SD_LDO11
USIM1_VDD
USIM2_VDD

3.8. Battery Charge and Management

SC600Y&SC600T modules support a fully programmable switch-mode Li-ion battery charge function. It
can charge single-cell Li-ion and Li-polymer battery. The battery charger of SC600Y&SC600T modules
supports trickle charging, pre-charge, constant current charging and constant voltage charging modes,
which optimize the charging procedure for Li-ion batteries.
⚫ Trickle charging: When the battery voltage is below 2.1V, a 75mA trickle charging current is applied
to the battery.
⚫ Pre-charge: When the battery voltage is charged up and is between 2.1V and 3.0V (the maximum
pre-charge voltage is 2.3V~3.0V programmable, 3.0V by default), the system will enter into
SC600Y&SC600T_Hardware_Design
Default Voltage (V)
1.8
1.8
2.8
2.85
1.1
2.8
1.2
1.8/2.95
2.95
1.8/2.95
1.8/2.95
SC600Y&SC600T Hardware Design
Drive Current (mA)
20
300
150
300
1200
150
600
50
800
50
50
Smart LTE Module Series
Idle
Keep
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