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ZHCSD04E November 2014 – March 2022 TPS65400

PRODUCTION DATA

封裝選項

機械數據 (封裝 | 引腳)

RGZ|48
- MPQF123F

散熱焊盤機械數據 (封裝 | 引腳)

RGZ|48
- QFND014T

訂購信息

8.6.2.3 (D2h) PIN_CONFIG_00

The PIN_CONFIG_00 command selects pin function and behavior for enable pins ENSWx and the global PGOOD pin.

ENABLE_PIN_CONFIG selects between active ENABLE, inactive ENABLE, or single ENABLE behavior for ENSWx pins.

When active ENABLE is selected, each pin in conjunction with OPERATION controls its respective switcher on/off. For details, see (01h) OPERATION and (DDh) TON_TOFF_DELAY.
When inactive ENABLE is selected, the state of all ENSWx pins is ignored.
When single ENABLE is selected, ENSW1 pin acts as a sequence start and sequence stop pin, with all other ENSWx pins ignored. This allows the device to emulate classic sequencing behavior. A start sequence begins when ENSW1 is asserted, and a stop sequence begins when ENSW1 is deasserted. If ENSW1 were to de-assert before a start sequence were complete, a stop-sequence would begin immediately.

PGOOD_PIN_CONFIG sets the function of the global PGOOD pin.

By default, the global PGOOD pin is configured to output a logical AND of each individual power supply’s PGOOD. If all supplies were to turn off, the global PGOOD pin would be de-asserted.
The global PGOOD pin can be selected to output the status of any individual power supply’s PGOOD, or any OR/AND combination thereof. If an individual supply’s PGOOD#_MASK bit is masked, its PGOOD status would be masked from the global PGOOD pin. If all PGOOD#_MASK pins were masked, the output of the global PGOOD pin would be at logic zero regardless of the PGOOD_LOGIC selected.
PGOOD#_MASK only applies to the output pin logic and does not affect STATUS_WORD or sequencing.
In current sharing mode, slave channel PGOOD must be masked, otherwise, global PGOOD would be asserted to low.

Table 8-21 PIN_CONFIG_00 Data Byte Contents

BITS	NAME	READ / WRITE	DEFAULT VALUE	BINARY VALUE	MEANING	PINS AFFECTED
7	—	R	0	—	—	—
6	PGOOD_PIN_CONFIG: PGOOD_LOGIC	R/W	0	0	AND of all unmasked PGOODs	Global PGOOD pin
6	PGOOD_PIN_CONFIG: PGOOD_LOGIC	R/W	0	1	OR of all unmasked PGOODs
5	PGOOD_PIN_CONFIG: PGOOD4_MASK	R/W	1	0	PGOOD4 is masked
5	PGOOD_PIN_CONFIG: PGOOD4_MASK	R/W	1	1	PGOOD4 is unmasked
4	PGOOD_PIN_CONFIG: PGOOD3_MASK	R/W	1	0	PGOOD3 is masked
4		R/W	1	1	PGOOD3 is unmasked
3	PGOOD_PIN_CONFIG: PGOOD2_MASK	R/W	1	0	PGOOD2 is masked
3	PGOOD_PIN_CONFIG: PGOOD2_MASK	R/W	1	1	PGOOD2 is unmasked
2	PGOOD_PIN_CONFIG: PGOOD1_MASK	R/W	1	0	PGOOD1 is masked
2	PGOOD_PIN_CONFIG: PGOOD1_MASK	R/W	1	1	PGOOD1 is unmasked
1:0	ENABLE_PIN_CONFIG	R/W	00	00	Active ENABLE Enable pins ENSWx control each switcher independently	ENSW# pins
				01	Inactive ENABLE All enable pins ENSWx are ignored
				1X	Single ENABLE ENSW1 starts and stops sequencing. All other enable pins are ignored.

Table 8-22 shows example configurations for PGOOD_PIN_CONFIG.

Table 8-22 PGOOD_PIN_CONFIG Example Configurations

PGOOD_PIN_CONFIG BINARY VALUE	GLOBAL PGOOD PIN	COMMENTS
01111 (default)	PGOOD1 and PGOOD2 and PGOOD3 and PGOOD4
11111	PGOOD1 or PGOOD2 or PGOOD3 or PGOOD4
00101	PGOOD1 and PGOOD3	Buck1,2 current sharing mode, Buck3,4 current sharing mode
01101	PGOOD1 and PGOOD3 and PGOOD4	Buck1,2 current sharing mode
00111	PGOOD1 and PGOOD2 and PGOOD3	Buck3,4 current sharing mode
X0001	PGOOD1	Only monitor Buck1's status
X0010	PGOOD2	Only monitor Buck2's status
X0100	PGOOD3	Only monitor Buck3's status
X1000	PGOOD4	Only monitor Buck4's status

This command has no PAGE support.

CAUTION:

Changing PIN_CONFIG_00 during normal operation has no effect. The configuration can only be modified by storing into EEPROM and then reloading the configuration upon reset.