參數(shù)資料
型號: SI3220PPTX-EVB
廠商: Silicon Laboratories Inc
文件頁數(shù): 51/112頁
文件大?。?/td> 0K
描述: BOARD EVAL W/DISCRETE INTERFACE
標準包裝: 1
系列: ProSLIC®
主要目的: 接口,模擬前端(AFE)
已用 IC / 零件: Si3220
已供物品: 板,CD
Si3220/25 Si3200/02
Rev. 1.3
43
Not
Recommended
fo
r N
ew
D
esi
gn
s
Figure 19. External Battery Switching Using the Si3220/Si3225
Table 23. Register and RAM Locations Used for Battery Switching
Parameter
Register/RAM
Mnemonic
Register/RAM
Bits
Programmable
Range
Resolution
(LSB Size)
High Battery Detect Threshold
BATHTH
BATHTH[14:7]
0 to 160.173 V*
628 mV
(4.907 mV)
Low Battery Detect Threshold
BATLTH
BATLTH[14:7]
0 to 160.173 V*
628 mV
(4.907 mV)
Ringing Battery Switch (Si3220 only)
RLYCON
GPO
Toggle
N/A
Battery Select Indicator
RLYCON
BSEL
Toggle
N/A
Battery Switching LPF
BATLPF
BATLPF[15:3]
0 to 4000h
N/A
*Note: Usable range for BATHTH and BATLTH is limited to the VBHI voltage.
Si3220
Si3225
Battery
Sense
Circuit
Battery
Control
Logic
Si3200/2
Linefeed
Circuitry
Battery
Select
Control
V
BLO
V
BHI
SVBAT
BATSEL
40.2 k
806 k
VBATH
VBAT
VBATL
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