SLVSI25 Data sheet

SLVSI25 July 2025 TPS546B25

PRODUCTION DATA

6.4.5.2 Programming PMB_ADDR

The pin-strapping table for PMB_ADDR is shown below. The PMBus address used can be sourced from PMBus register PMBus_ADDR instead of pin-strapping, depending on the state of the OVRD_PMB_ADDR bit in the PIN_DETECT_OVERRIDE register. When pin-strapping is used as the source of PMBus address, the contents of PMBus_ADDR indicating PMBus address (bits [14:8]) are updated with the pin-strapped values.

The table below shows the valid PMBus address configurations for primary and secondary devices through pin-strap.

Table 6-4 Allowed Combinations of PMB_ADDR

SINGLE PHASE	TWO PHASE	THREE PHASE	FOUR PHASE
All Resistor Values between 0Ω and 18.2kΩ	Primary: 22.1kΩ Secondary: 0Ω	Primary: 49.9kΩ First Secondary: 4.02kΩ Second Secondary: 9.09kΩ	Primary: 137kΩ First Secondary: 22.1kΩ Second Secondary: 49.9kΩ Third Secondary: 137kΩ
Primary: 26.7kΩ Secondary: 2.21kΩ	Primary: 60.4kΩ First Secondary: 4.87kΩ Second Secondary: 11.3kΩ	Primary: 174kΩ First Secondary: 26.7kΩ Second Secondary: 60.4kΩ Third Secondary: 174kΩ
Primary: 33.2kΩ Secondary: 2.74kΩ	Primary: 76.8kΩ First Secondary: 5.9kΩ Second Secondary:14.3kΩ	Primary: 243kΩ First Secondary: 33.2kΩ Second Secondary: 76.8kΩ Third Secondary: 243kΩ
Primary: 40.2kΩ Secondary: 3.32kΩ	Primary: 102kΩ First Secondary: 7.32kΩ Second Secondary Secondary:18.2kΩ	Primary: > 412kΩ First Secondary: 40.2kΩ Second Secondary: 102kΩ Third Secondary: > 412kΩ

SINGLE PHASE

TWO PHASE

THREE PHASE

FOUR PHASE

All Resistor Values between 0Ω and 18.2kΩ

Primary: 22.1kΩ

Secondary: 0Ω

Primary: 49.9kΩ

First Secondary: 4.02kΩ

Second Secondary: 9.09kΩ

Primary: 137kΩ

First Secondary: 22.1kΩ

Second Secondary: 49.9kΩ

Third Secondary: 137kΩ

Primary: 26.7kΩ

Secondary: 2.21kΩ

Primary: 60.4kΩ

First Secondary: 4.87kΩ

Second Secondary: 11.3kΩ

Primary: 174kΩ

First Secondary: 26.7kΩ

Second Secondary: 60.4kΩ

Third Secondary: 174kΩ

Primary: 33.2kΩ

Secondary: 2.74kΩ

Primary: 76.8kΩ

First Secondary: 5.9kΩ

Second Secondary:14.3kΩ

Primary: 243kΩ

First Secondary: 33.2kΩ

Second Secondary: 76.8kΩ

Third Secondary: 243kΩ

Primary: 40.2kΩ

Secondary: 3.32kΩ

Primary: 102kΩ

First Secondary: 7.32kΩ

Second Secondary Secondary:18.2kΩ

Primary: > 412kΩ

First Secondary: 40.2kΩ

Second Secondary: 102kΩ

Third Secondary: > 412kΩ

Table 6-5 Resistor for Programming When MSEL1 Selects Primary = 1 (Primary Device)

RESISTOR (kΩ)	PRIMARY STACK NUMBER	MODE	COMMON ADDRESS
< 1.78	Primary Device - 1 Phase Stack	FCCM	11h
2.21			12h
2.74			13h
3.32		DCM	14h
4.02			15h
4.87			16h
5.9		FCCM	17h
7.32			18h
9.09			19h
11.3		DCM	1Ah
14.3			1Bh
18.2			1Ch
22.1	Primary Device - 2 Phase Stack	FCCM	0Dh
26.7			0Eh
33.2			0Fh
40.2			10h
49.9	Primary Device - 3 Phase Stack		0Dh
60.4			0Eh
76.8			0Fh
102			10h
137	Primary Device - 4 Phase Stack		0Dh
174			0Eh
243			0Fh
> 412			10h

Table 6-6 Resistor for Programming When MSEL1 Selects Secondary Device

RESISTOR (kΩ)	PRIMARY STACK NUMBER	MODE	COMMON ADDRESS	UNIQUE ADDRESS
< 1.78	First Secondary Device - 2 Phase Stack	FCCM	0Dh	+10h
2.21			0Eh	+10h
2.74			0Fh	+10h
3.32			10h	+10h
4.02	First Secondary Device - 3 Phase Stack		0Dh	+10h
4.87			0Eh	+10h
5.9			0Fh	+10h
7.32			10h	+10h
9.09	Second Secondary Device - 3 Phase Stack		0Dh	+30h
11.3			0Eh	+30h
14.3			0Fh	+30h
18.2			10h	+30h
22.1	First Secondary - 4 Phase Stack		0Dh	+10h
26.7			0Eh	+10h
33.2			0Fh	+10h
40.2			10h	+10h
49.9	Second Secondary - 4 Phase Stack		0Dh	+30h
60.4			0Eh	+30h
76.8			0Fh	+30h
102			10h	+30h
137	Third Secondary - 4 Phase Stack		0Dh	+50h
174			0Eh	+50h
243			0Fh	+50h
> 412			10h	+50h