4

User-defined start-up configuration

4.1

Parameter overview

The non-volatile-memory allows customer to customize the STUSB4761 default parameters. The default

configuration can be overridden either through the I²C interface or via CC pin (see Section 3.1 PDO

customization). The list of customizable parameters is described in the table below:

Table 10. Parameter overview

Parameter

Description

Value

Comments

TYPEC_CURRENT (Rp)

Source current

advertised

on CC pin

USB default

1.5 A

3 A

SRC_PDO_NUMB

Number of PDO

From 2 to 5

To be ranked by increasing voltage

value

V_SRC_PDO(i)

Default voltage value

for SRC_PDO(i)

1≤ i ≤ SRC_PDO_NUMB

5 V

Fixed value for SRC_PDO1

V_SRC_PDO_FLEX1

Flexible voltage value to be assigned

to any SRC_PDO:

5 V < V_SRC_PDO ≤ 20 V

by steps of 50 mV

V_SRC_PDO_FLEX2

Flexible voltage value to be assigned

to any SRC_PDO:

5 V < V_SRC_PDO ≤ 20 V

by steps of 50 mV

I_SRC_PDO(i)

Default current value

for every SRC_PDO(i)

(1≤ i ≤

SRC_PDO_NUMB)

Flexible current

I_SRC_PDO_FLEX

Flexible value to be assigned to any

SRC_PDO:

300 mA < I_SRC_PDO_FLEX ≤ 5 A

by steps of 10 mA

Pre-defined current

•

0.50 A

•

0.75 A

•

1.00 A

•

1.25 A

•

1.50 A

•

1.75 A

•

2.00 A

•

2.25 A

•

2.50 A

•

2.75 A

•

3.00 A

•

3.50 A

•

4.00 A

•

4.50 A

•

5.00 A

I_SRC_PDO_otp(i)

Current value, for every

SRC_PDO(i),

in overtemperature

condition (T > T1)

I_SRC_PDO_FLEX

Flexible value to be assigned to any

SRC_PDO:

10 mA < I_SRC_PDO_FLEX < 5 A

by steps of 10 mA

STUSB4761

User-defined start-up configuration

DS13141 - Rev 3

page 12/29