ZHCSJX0A 数据表 | 德州仪器 TI.com.cn

ZHCSJX0A June 2019 – January 2021 BQ25125

PRODUCTION DATA

Memory location 0x06h, Reset State: 1010 1010 (BQ25125)

Figure 9-17 SYS VOUT Control Register

LEGEND: R/W = Read/Write; R = Read only; -n = value after reset

Table 9-18 SYS VOUT Control Register

Bit	Field	Type	Reset	Description
B7 (MSB)	EN_SYS_OUT	R/W	1	0 – Disable SW 1 – Enable SW (When disabled, output is pulled low)
B6	SYS_SEL1	R/W	0	00 – 1.1 V and 1.2 V selection 01 – 1.3 V through 2.8 V selection 10 – 1.5V through 2.75 V selection 11 – 1.8 V through 3.3 V selection
B5	SYS_SEL0	R/W	1
B4	SYS_VOUT_3	R/W	0	OUT Voltage: 800 mV step if SYS_SEL is 01 or 11
B3	SYS_VOUT_2	R/W	1	OUT Voltage: 400 mV step if SYS_SEL is 01 or 11
B2	SYS_VOUT_1	R/W	0	OUT Voltage: 200 mV step if SYS_SEL is 01 or 11
B1	SYS_VOUT_0	R/W	1	OUT Voltage: 100 mV step if SYS_SEL is 01 or 11
B0 (LSB)			0
SW_VOUT Bits: Use SYS_SEL and SYS_VOUT bits to set the output on SYS. The SYS voltage is calculated using the following equation: See table below for all VOUT values that can be programmed through SYS_SEL and SYS_VOUT. If SYS_SEL = 01, then SYS = 1.30 V + SYS_VOUTCODE x 100 mV. If SYS_SEL = 11, then SYS = 1.80 V + SYS_VOUTCODE x 100 mV.

Table 9-19 SYS_SEL Codes

SYS_SEL	SYS_VOUT	TYP	UNIT
00	0000	1.1	V
00	0001	1.2	V
00	0010	1.25	V
00	0011	1.333	V
00	0100	1.417	V
00	0101	1.5	V
00	0110	1.583	V
00	0111	1.667	V
00	1000	1.75	V
00	1001	1.833	V
00	1010	1.917	V
00	1011	2	V
00	1100	2.083	V
00	1101	2.167	V
00	1110	2.25	V
00	1111	2.333	V
01	0000	1.3	V
01	0001	1.4	V
01	0010	1.5	V
01	0011	1.6	V
01	0100	1.7	V
01	0101	1.8	V
01	0110	1.9	V
01	0111	2	V
01	1000	2.1	V
01	1001	2.2	V
01	1010	2.3	V
01	1011	2.4	V
01	1100	2.5	V
01	1101	2.6	V
01	1110	2.7	V
01	1111	2.8	V
10	0000	1.5	V
10	0001	1.583	V
10	0010	1.667	V
10	0011	1.75	V
10	0100	1.833	V
10	0101	1.917	V
10	0110	2	V
10	0111	2.083	V
10	1000	2.167	V
10	1001	2.25	V
10	1010	2.333	V
10	1011	2.417	V
10	1100	2.5	V
10	1101	2.583	V
10	1110	2.667	V
10	1111	2.75	V
11	0000	1.8	V
11	0001	1.9	V
11	0010	2	V
11	0011	2.1	V
11	0100	2.2	V
11	0101	2.3	V
11	0110	2.4	V
11	0111	2.5	V
11	1000	2.6	V
11	1001	2.7	V
11	1010	2.8	V
11	1011	2.9	V
11	1100	3	V
11	1101	3.1	V
11	1110	3.2	V
11	1111	3.3	V