SW3518S

Dual Ports Fast Charge Application

Copyright © 2022, ZHUHAI ISMARTWARE TECHNOLOGY CO., LTD.

May, 2022 - DS031_v1.6

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9.11. VOOC Fast Charge

The SW3518S integrates VOOC fast charge protocol, and supports 5V@4.25A output voltage.

9.12. BC1.2 Module

The SW3518S integrates BC1.2 controller, and automatically detects apple and samsung devices:

Apple 2.4A mode: DP=2.7V, DM=2.7V;

Samsung 2A mode: DP=1.2V, DM=1.2V;

9.13. Fast Charge Led

The SW3518S integrates fast charge LED driver through FLED pin. FLED pin will drive low to turn

on fast charge led in fast charge status.

9.14. ADC

The SW3518S integrates 12 bit ADC, and samples input voltage/output voltage/Type-A output

current/Type-C output current/board temperature. Board temperature can be calculated using NTC

thermistor of 103AT.

ADC channel

Range

Step

Input voltage

0~40.96V

10mV

Output voltage

0~24.576V

6mV

Type-A output current

0~10.24A

2.5mA

Type-C output current

0~10.24A

2.5mA

NTC voltage

0~2.048V

0.5mV