SW6208

Bidirectional Fast Charge Power Bank

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

May, 2022 - DS046_v1.5

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9.14. Lightning Decryption

The SW6208 integrates lightning decryption and supports inner decryption or external decryption.

When selecting inner decryption, DATA pin is directly connected to Lightning port. When selecting

external decryption, DATA pin is connected to VCC, and use external decryption chip to decrypt

Lightning cable.

9.15. Fuel Gauge

The SW6208 integrates coulometer to obtain accurate battery capacity.

The coulometer supports battery maximal capacity self-learning, and can learn the battery current

maximal capacity in one complete charge cycle .

The battery initial capacity can be set by a resister which connecting LED5/CSET pin to ground. The

relation between initial capacity Cset and resister Rcset is:

Rset=( Cset +2000 )*5/3

While Cset unit is mAh, and Rset unit is Ω.

The constant charge time can be set by a resister which connecting KEY/GSET pin to VCC.

9.16. ADC

The SW6208 integrates 12 bit ADC, and samples VOUT voltage/IOUT current/battery voltage/NTC

voltage/chip temperature.

ADC channel

Range

Step

VOUT voltage

0~16.384V

4mV

IOUT current

0~9.309A

25/11mA

Battery voltage

0~4.915V

1.2mV

NTC voltage

0~4.505V

1.1mV

Chip temperature

-100~200℃

1/6.82℃