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FAN5400 Просмотр технического описания (PDF) - Fairchild Semiconductor

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FAN5400 USB-Compliant Single-Cell Li-Ion Switching Charger with USB-OTG Boost Regulator Fairchild
Fairchild Semiconductor Fairchild
FAN5400 Datasheet PDF : 37 Pages
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Register Descriptions
The FAN5400-FAN5402 have seven user-accessible registers; the FAN5403-05 have an additional two registers, as defined in
Table 22.
Table 22. I2C Register Address
IC
ALL
FAN5403-FAN5405
ALL
Register
Name
CONTROL0
CONTROL1
OREG
IC_INFO
IBAT
SP_CHARGER
SAFETY
MONITOR
REG#
0
1
2
03
or
3BH
4
5
6
10H
Address Bits
76543210
00000000
00000001
00000010
00000011
00000100
00000101
00000110
00001010
Table 23. Register Bit Definitions
This table defines the operation of each register bit for all IC versions. Default values are in bold text.
Bit
Name
CONTROL0
7
TMR_RST
OTG
6
EN_STAT
5:4
STAT
3
BOOST
2:0
FAULT
Value
1
0
1
00
01
10
11
0
1
Type
Description
Register Address: 00
Default Value=X1XX 0XXX
W Writing a 1 resets the t32S timer; writing a 0 has no effect
R Returns the OTG pin level (1=HIGH)
R/W
Prevents STAT pin from going LOW during charging; STAT pin still pulses to
enunciate faults
Enables STAT pin LOW when IC is charging
R Ready
Charge in progress
Charge done
Fault
R IC is not in Boost Mode
IC is in Boost Mode
R Fault status bits: for Charge Mode, see Table 13; for Boost Mode: see Table 18
© 2009 Fairchild Semiconductor Corporation
FAN5400 Family • Rev. 1.0.7
32
www.fairchildsemi.com
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