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RT9458WSC Datasheet(PDF) 23 Page - Richtek Technology Corporation

Part # RT9458WSC
Description  Switch-Mode Single Cell Li-Ion Battery Charger
PDF  27 Pages
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Manufacturer  RICHTEK [Richtek Technology Corporation]
Direct Link  http://www.richtek.com
Logo RICHTEK - Richtek Technology Corporation

RT9458WSC Datasheet(HTML) 23 Page - Richtek Technology Corporation

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23
DS9458-02
February 2017
www.richtek.com
RT9458
©
Copyright
2017 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
Address
Name
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
Bit0
0x04
Control4
RST
Reserved Reserved Reserved Reserved Reserved Reserved Reserved
Reset Value
0
0
0
0
0
0
0
0
Read/Write
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
RST
Write
1 : Charger in reset mode, 0 : No effect, Read : always get "0"
Address
Name
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
Bit0
0x05
Control5
TMR_EN Reserved Reserved Reserved Reserved
IEOC[2:0]
Reset Value
1
0
0
0
0
0
1
0
Read/Write
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
TMR_EN
0 : Disable internal timer function, 1 : Enable internal timer function (default 1)
IEOC[2:0]
000 : 50mA
001 : 100mA
010 : 150mA (default)
011 : 200mA
100 : 250mA
101 : 300mA
110 : 350mA
111 : 400mA
Address
Name
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
Bit0
0x06
Control6
IAICR_
SEL
ICHRG[2:0]
FixFreq
VPREC[2:0]
Reset Value
0
0
0
0
0
0
1
0
Read/Write
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
IAICR_SEL
0 : AICR is defined by IAICR [1:0]
1: AICR 500mA and 1A becomes 700mA
ICHRG[2:0]
External Sensing R : Charge current sense voltage (current equivalent for 56m
 sense
resistor)
000 : 28mV (500mA) (default 000)
001 : 36.4mV (650mA)
010 : 44.8mV (800mA)
---
110 : 78.4mV (1400mA)
111 : 86.8mV (1550mA)
VPREC[2:0]
000 : 2V
001 : 2.2V
010 : 2.4V (default 010)
011 : 2.6V
100 : 2.8V
101 : 3V
…
111 : 3V
Fix Freq
0 : Auto frequency change
1 : Fix frequency



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