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RT5021 데이터시트(PDF) 53 Page - Richtek Technology Corporation

부품명 RT5021
상세설명  Channels DC/DC PMU with Li-ion Battery Charger
PDF  67 Pages
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제조업체  RICHTEK [Richtek Technology Corporation]
홈페이지  http://www.richtek.com
Logo RICHTEK - Richtek Technology Corporation

RT5021 데이터시트(HTML) 53 Page - Richtek Technology Corporation

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RT5021
53
DS5021-01 April 2013
www.richtek.com
Copyright
2013 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
©
Address
Name
Register
Address
Bit7
(MSB)
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
Bit0
(LSB)
Meaning
TSHT[1:0]
Mask_DPM CHG2STEN
ISETA [3:0]
Default
0
0
0
1
0
1
0
0
A8
0x08
Read/Write
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Set TS/VP threshold to monitor battery temperature for HOT boundary.
Equivalent Battery Temperature
Code
TS/VP
ratio
10k NTC
100k NTC
00
28%
60°C
60°C
01
28.5%
58°C
59°C
10
29%
56°C
57°C
TSHT [1:0]
11
29.5%
54°C
56°C
Mask DPM function
0 : When DPM event change, INT would be asserted.
Mask_DPM
1 : When DPM event change, INT would not be asserted.
Used to control CHG2 pin status.
0 : See FLSH2 set.
CHG2STEN
1 : Base on charging status.
CHG2STEN = 0 (A8.bit4 = 0)
Charging Status
CHG2STEN = 1
(A8.bit4 = 1)
FLST2 = 1
(A5.bit3 = 1)
FLST2 = 0
(A5.bit3 = 0)
No Charging/
Charging Finish
High impedance
(No flashing)
Pre-Charge/
Fast Charge
Low
Abnormal (Fault timer
timeout, in thermal
regulation, battery too
cold or too hot
4Hz (0.25s)
High
Impedance
Low
RT5021 allows user to set the battery charge current level and the list as below.
The default value is 0.5A.
Code
BAT
Charge
Current
Code
BAT
Charge
Current
Code
BAT
Charge
Current
Code
BAT
Charge
Current
0000
0.1A
0001
0.2A
0010
0.3A
0011
0.4A
0100
0.5A
0101
0.6A
0110
0.7A
0111
0.8A
1000
0.9A
1001
1A
1010
1.1A
1011
1.2A
ISETA [3:0]
1100
1.2A
1101
1.2A
1110
1.2A
1111
1.2A



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