JAJSIO4 データシート

JAJSIO4A February 2020 – September 2020 TPS546A24A

PRODUCTION DATA

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7.6.80 (E3h) MFR_SPECIFIC_19 (PGOOD_CONFIG)

CMD Address	E3h
Write Transaction:	Write Word
Read Transaction:	Read Word
Format	Unsigned Word
Phased:	No
NVM Backup:	EEPROM or Pin Detect
Updates:	Conversion Disable: see below. Conversion Enable: Read-Only

Figure 7-86 (E3h) MFR_SPECIFIC_19 (PGOOD_CONFIG) Register Map

15	14	13	12	11	10	9	8
R	R	R	R	R	R	R	R
PGOOD_OFF_DELAY[3:0]				PGOOD_ON_DELAY[3:0]
7	6	5	4	3	2	1	0
R	R	R	R	RW	RW	RW	RW
pgmOVF	pgmOVW	pgmUVW	pgmUVF	pgmOCW	pgmOCF	pgmINOVW	pgmINOVF

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

Table 7-97 Register Field Descriptions

Bit	Field	Access	Reset	Description
15:12	PGOOD_OFF_DELAY[3:0]	RW	NVM	Sets Delay from the detection of an unmasked Fault or Warning event to the assertion of PGOOD low. 0d: Delay PGOOD high-low 1 PWM CLK 1d-15d: Delay PGOOD high-low 2^N+1 PWM CLKs
11:8	PGOOD_ON_DELAY[3:0]	RW	NVM	Sets Delay from the detection of no unmasked Fault or Warning events to the release of PGOOD low. 0d: Delay PGOOD low-hight to 1 PWM CLK 1d-15d: Delay PGOOD low-high 2^N+1 PWM CLKs
7	pgmOVF	RW	NVM	0b: Output Overvoltage Fault can assert PGOOD low. 1b: Output Overvoltage Fault cannot assert PGOOD low.
6	pgmOVW	RW	NVM	0b: Output Overvoltage Warning can assert PGOOD low. 1b: Output Overvoltage Warning cannot assert PGOOD low.
5	pgmUVF	RW	NVM	0b: Output Undervoltage Fault can assert PGOOD low. 1b: Output Undervoltage Fault cannot assert PGOOD low.
4	pgmUVW	RW	NVM	0b: Output Undervoltage Warning can assert PGOOD low. 1b: Output Undervoltage Warning cannot assert PGOOD low.
3	pgmOCW	RW	NVM	0b: Output Overcurrent Warning can assert PGOOD low. 1b: Output Overcurrent Warning cannot assert PGOOD low.
2	pgmOCF	RW	NVM	0b: Output Overcurrent Fault can assert PGOOD low. 1b: Output Overcurrent Fault cannot assert PGOOD low.
1	pgmINOVW	RW	NVM	0b: Input Overvoltage Warning can assert PGOOD low. 1b: Input Overvoltage Warning cannot assert PGOOD low.
0	pgmINOVF	RW	NVM	0b: Intput Overvoltage Fault can assert PGOOD low. 1b: Intput Overvoltage Fault cannot assert PGOOD low.

Power Good indicates the status of the converter. Section 7.6.80 provides control of the delays asserting and releasing Power Good. Power Good is always low while conversion is disabled, during Section 7.6.48, Section 7.6.49, Section 7.6.53, and during a fault shut-down or hiccup delay. PGOOD_OFF_DELAY is bypassed during Section 7.6.53 and during a fault shut-down or hiccup. Power Good will still be asserted on an unmasked fault event unless that fault's RESPONSE command is configured to Continue Operating without Interruption.

PGOOD_OFF_DELAY and PGOOD_ON_DELAY are sensed and timed independently from each other. If PGOOD_ON_DELAY is less than PGOOD_OFF_DELAY and an unmasked fault or warning event lasts less than PGOOD_OFF_DELAY - PGOOD_ON_DELAY, Power Good will not be asserted low during the fault or warning events.

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発注情報

7.6.80 (E3h) MFR_SPECIFIC_19 (PGOOD_CONFIG)