FAN54013_12 Datasheet, PDF (32/36 Pages) Fairchild Semiconductor – FAN54010 / FAN54011 / FAN54012 / FAN54013 / FAN54014

Register Descriptions
FAN54010-FAN54012 have seven user-accessible registers; FAN54013 and FAN54014 have an additional two registers,
defined in Table 22.
Table 22. I²C Register Address
IC
ALL
FAN54013 and FAN54014
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
CONTROL1
7:6
I_INLIM
5:4
V_LOWV
3
TE
2
CE
Value
1
0
1
00
01
10
11
0
1
00
01
10
11
0
1
0
1
Type
Description
Register Address: 00
Default Value=X1XX 0XXX
W Writing a 1 resets the t_32S 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
Register Address: 01
R/W Input current limit, see Table 7
R/W 3.4 V
3.5 V
3.6 V
Default Value=0011 0000 (30H)
Weak battery voltage threshold
3.7 V
R/W Disable charge current termination
Enable charge current termination
R/W Charger enabled
Charger disabled
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FAN5401X Family • Rev. 1.0.4
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