LP3971 datasheet(20/42 Pages) NSC

tên linh kiện	LP3971

Giải thích chi tiết về linh kiện	POWER MANAGEMENT UNIT FOR ADVANCED APPLICATION PROCESSORS

PDF	42 Pages

Scroll/Zoom	100%

nhà sản xuất	NSC [National Semiconductor (TI)]

Trang chủ	http://www.national.com

Logo

20 / 42 page

2C Register Definitions (Continued)

BACKUP BATTERY CHARGER CONTROL REGISTER (BBCC) 8h’0B

Bit

Designation

NBUB

CNBFL

nBFLT

BUCEN

IBUC

Reset Value

BACKUP BATTERY CHARGER CONTROL REGISTER (BBCC) 8h’0B DEFINITIONS

Bit

Access

Name

Description

R/W

NBUB

No back-up battery default setting. Logic will not allow switch over to back-up battery.

0 = Back up Battery Enabled

1 = Back up Battery Disabled

R/W

CNBFL

Control for nBATT_FLT output signal

0 = nBATT_FLT Enabled

1 = nBATT_FLT Disabled

5:3

R/W

BFLT

nBATT_FLT monitors the battery voltage and can be set to the De-assert voltages listed

below.

Data Code

Asserted

De-Asserted

3h’00

2.4

2.6

3h’01

2.6

2.8

3h’02

2.8

3.0

3h’03

3.0

3.2

3h’04

3.2

3.4

3h’05

3.4

3.6

R/W

BUCEN

Enables backup battery charger

0 = Back up Battery Charger Disabled

1 = Back up Battery Charger Enabled

1:0

R/W

IBUC

Charger current setting for back-up battery

Data Code

BU Charger I (µA)

2h’00

260

2h’01

190

2h’02

325

2h’03

390

LP3971 bảng dữ liệu(PDF) 20 Page - National Semiconductor (TI)

LP3971 bảng dữ liệu(HTML) 20 Page - National Semiconductor (TI)

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42

bảng dữ liệu tải về

Link URL