IP5389

V1.23

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NTC_MODE

External

Resistance(ohm)

NTC_MODE

Theoretical

Voltage(mV)

NTC_MODE

Voltage Judgment

Range(mV)

NTC Function

27k

2160

1750~2550

NTC first gear

18k

1440

1220~1750

NTC second gear

13k

1040

860~1220

NTC third gear

9.1k

728

600~860

NTC fourth gear

6.2k

496

380~600

NTC fifth gear

3.6k

288

216~380

NTC sixth gear

Table 21

NTC functions

IP5389 has six built-in NTC functions. By changing the resistance between NTC_MODE pin and GND,

the corresponding NTC function can be set. The functions are as follows:

NTC first gear:

In the charging state, the charging is normal between 0 and 45 degrees Celsius, but when the

temperature is lower than 0 degrees Celsius (greater than 0.55V) or the temperature exceeds 45 degrees

Celsius (less than 0.39V), the charging stops.

In the discharge state, the discharge is normal between -20 and 60 degrees Celsius, but when the

temperature is lower than -20 degrees Celsius (greater than 1.39V) or higher than 60 degrees Celsius

(less than 0.24V), the discharge stops.

NTC second gear:

In the charging state, the charging is normal between 2 and 43 degrees Celsius, but when the

temperature is lower than 2 degrees Celsius (greater than 0.50V) or the temperature exceeds 43 degrees

Celsius (less than 0.42V), the charging stops.

In the discharge state, the discharge is normal between -10 and 55 degrees Celsius, but when the

temperature is lower than -10 degrees Celsius (greater than 0.86V) or higher than 55 degrees Celsius

(less than 0.28V), the discharge stops.

NTC third gear:

In the charging state, the charging is normal between 0 and 45 degrees Celsius, but when the

temperature is lower than 0 degrees Celsius (greater than 0.55V) or the temperature exceeds 45 degrees

Celsius (less than 0.39V), the charging stops.

In the discharge state, the discharge is normal between -10 and 55 degrees Celsius, but when the

temperature is lower than -10 degrees Celsius (greater than 0.86V) or higher than 55 degrees Celsius

(less than 0.28V), the discharge stops.

NTC fourth gear:

In the charging state, the charging is normal between 0 and 45 degrees Celsius, but when the

temperature is lower than 0 degrees Celsius (greater than 0.55V) or the temperature exceeds 45 degrees

Celsius (less than 0.39V), the charging stops.

In the discharge state, the discharge is normal between -10 and 55 degrees Celsius, but when the

temperature is lower than -10 degrees Celsius (greater than 0.86V) or higher than 55 degrees Celsius

(less than 0.28V), the discharge stops.

NTC fifth gear:

In the charging state, the charging is normal between 17 and 43 degrees Celsius, but when the