SW6208

Bidirectional Fast Charge Power Bank

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

May, 2022 - DS046_v1.5

8

DP/DM Voltage

DP

Apple 2.4A Mode

2.55

2.7

2.85

V

DM

Apple 2.4A Mode

2.55

2.7

2.85

V

PE

Current Threshold

IREF

150

250

350

mA

Quit Time

tPLUG_OUT

160

200

240

mS

LED

Segment Source Current

ISEG

6

10

14

mA

LED Source Current

ILED

2

4

6

mA

LED Flicker Frequency

fLED

0.8

1

1.2

Hz

WLED

WLED Resistor

RWLED

10

20

30

Ω

KEY

Short Key Time

TSHORT

24

32

500

mS

Long Key Time

TLONG

1.5

2

3

S

Double Short Key

TDOUBLE

Longest Time For Two Short

Key Happen

1.2

1.5

1.8

S

I2C

Rate

fCLK

100

400

Kbit/S

Thermal Shutdown

Thermal Shutdown Threshold

TSHDT

Temperature Rising

135

150

165

℃

Thermal Shutdown Hysteresis

TSHDT_HYS

Temperature Falling

55

70

85

℃

9. Functional Description

9.1. Charge Mode

The SW6208 integrates a switching charger with efficiency is up to 96%. The switching charger

supports 4.2V/4.35V/4.4V/4.5V battery voltage. Its switching frequency is up to 400KHz, so a small

size inductor with inductance of 2.2uH can be used.

The switching charger charges battery in three charge phases: trickle charge(TC), constant current

charge(CC) and constant voltage charge(CV). When battery voltage is lower than 3V, charger enters

into trickle charge while the charge current is small current. When battery voltage rises to 3V, charge

enters into constant current charge while charge current is fast charge current. When battery voltage