SLUSF28 Data sheet

SLUSF28 November 2023 TPS546A24S

PRODUCTION DATA

Package Options

Mechanical Data (Package|Pins)

RVF|40
- MPQF268C

Thermal pad, mechanical data (Package|Pins)

RVF|40
- QFND333E

Orderable Information

6.6.76 (D0h) MFR_SPECIFIC_00 (TELEMETRY_CONFIG)

CMD Address	D0h
Write Transaction:	Write Block
Read Transaction:	Read Block
Format:	Unsigned Binary (6 bytes)
Phased:	No
NVM Back-up:	EEPROM
Updates:	On-The-Fly

Configure the priority and averaging for each channel of the internal telemetry system.

The internal telemetry system shares a single ADC across each measurement. The priority setting allows the user to adjust the relative rate of measurement of each telemetry value. The ADC will first measure each value with a priority A value. With each pass through all priority A measurements, one priority B measurement will be taken. With each pass through all priority B measurements, one priority C measurement will be taken.

Example: If output voltage has priority A and output current has priority B, and temperature has priority C, the telemetry sequence will be VOUT IOUT VOUT TEMPERATURE VOUT IOUT VOUT TEMPERATURE.

Figure 6-82 (D0h) MFR_SPECIFIC_00 (TELEMETRY_CONFIG) Register Map

47	46	45	44	43	42	41	40
RW	RW	RW	RW	RW	RW	RW	RW
Reserved priority		Reserved			Reserved averaging

39	38	37	36	35	34	33	32
RW	RW	RW	RW	RW	RW	RW	RW
Reserved priority		Reserved			Reserved averaging

31	30	29	28	27	26	25	24
R	RW	RW	RW	RW	RW	RW	RW
RD_VI_PRI		Reserved			RD_VI_AVG

23	22	21	20	19	18	17	16
RW	RW	RW	RW	RW	RW	RW	RW
RD_TMP_PRI		Reserved			RD_TMP_AVG

15	14	13	12	11	10	9	8
RW	RW	RW	RW	RW	RW	RW	RW
RD_IO_PRI		Reserved			RD_IO_AVG

7	6	5	4	3	2	1	0
RW	RW	RW	RW	RW	RW	RW	RW
RD_VO_PRI		Reserved			RD_VO_AVG

LEGEND: R/W = Read/Write; R = Read only

Table 6-93 Register Field Descriptions

Bit	Field	Access	Reset	Description
47:40	Not used	R	00h	Reserved. Set values to 00h.
39:32	Not used	RW	NVM	Reserved. Set values to 03h.
31:30	RD_VI_PRI	RW	NVM	00b: Assign priority A to input voltage telemetry. 01b: Assign priority B to input voltage telemetry. 10b: Assign priority C to input voltage telemetry. 11b: Disable input voltage telemetry.
31:24	RD_VI_AVG	RW	NVM	0d - 5d: READ_VIN Rolling average of 2^N samples 6d-7d: Invalid
23:22	RD_TMP_PRI	RW	NVM	00b: Assign priority A to temperature telemetry. 01b: Assign priority B to temperature telemetry. 10b: Assign priority C to temperature telemetry. 11b: Invalid
21:19	Reserved	RW	NVM	Reserved. Set to 000b.
18:16	RD_TMP_AVG	RW	NVM	0d - 5d: READ_TEMPERATURE_1 Rolling average of 2^N samples 6d-7d: Invalid
15:14	RD_IO_PRI	RW	NVM	00b: Assign priority A to output current telemetry. 01b: Assign priority B to output current telemetry. 10b: Assign priority C to output current telemetry. 11b: Disable output current telemetry.
13:11	Reserved	RW	NVM	Reserved. Set to 000b.
10:8	RD_IO_AVG	RW	NVM	0d - 5d: READ_IOUT Rolling average of 2^N samples 6d-7d: Invalid
7:6	RD_VO_PRI	RW	NVM	00b: Assign priority A to output voltage telemetry. 01b: Assign priority B to output voltage telemetry. 10b: Assign priority C to output voltage telemetry. 11b: Disable output voltage telemetry.
5:3	Reserved	RW	NVM	Reserved. Set to 000b.
2:0	RD_VO_AVG	RW	NVM	0d - 5d: READ_VOUT Rolling average of 2^N samples 6d-7d: Invalid

Disabling any telemetry value will force the associated READ PMBus command to report 0000h.

Because temperature telemetry is used for Overtemperature Protection, temperature telemetry cannot be disabled.