JAJSIO4 データシート

JAJSIO4A February 2020 – September 2020 TPS546A24A

PRODUCTION DATA

パッケージ・オプション

7.6.45 (55h) VIN_OV_FAULT_LIMIT

CMD Address	55h
Write Transaction:	Write Word
Read Transaction:	Read Word
Format:	SLINEAR11 per CAPABILITY
Phased:	No
NVM Back-up:	EEPROM
Updates:	On-the-fly

The Section 7.6.45 command sets the PVIN voltage, in volts, when a VIN_OV_FAULT is declared. The response to a detected VIN_OV_FAULT is determined by the settings of Section 7.6.46. Section 7.6.45 is typically used to stop switching in the event of excessive input voltage, which can result in over-stress damage to the power FETs due to ringing on the SW node.

Figure 7-51 (55h) VIN_OV_FAULT_LIMIT Register Map

15	14	13	12	11	10	9	8
RW	RW	RW	RW	RW	RW	RW	RW
VINOVF_EXP					VINOVF_MAN

7	6	5	4	3	2	1	0
RW	RW	RW	RW	RW	RW	RW	RW
VINOVF_MAN

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

Table 7-62 Register Field Descriptions

Bit	Field	Access	Reset	Description
15:11	VINOVF_ EXP	RW	11110b	Linear format two’s complement exponent
10:0	VINOVF_ MAN	RW	NVM	Linear format two’s complement mantissa

Attempts to write Section 7.6.45 beyond the supported range will be considered invalid/unsupported data and cause the TPS546A24A to respond by flagging the appropriate status bits and notifying the host according to the PMBus 1.3.1 Part II specification section 10.9.3. Section 7.6.45 supports values from 5 V to 22 V in 0.25-V steps. Following a Power Cycle or STORE/RESTORE, Section 7.6.45 will be restored to the nearest supported value.

パッケージ・オプション

メカニカル・データ（パッケージ｜ピン）

サーマルパッド・メカニカル・データ

発注情報

7.6.45 (55h) VIN_OV_FAULT_LIMIT