I
2
C Register Descriptions
Table 4. ChipId Register (0x00)
Table 5. ChipRev Register (0x01)
Table 6. StatusA Register (0x02)
ADDRESS:
0x00
MODE:
Read-Only
BIT
7
6
5
4
3
2
1
0
NAME
Chip_Id[7:0]
Chip_Id[7:0]
Chip_Id[7:0] bits show information about the version of the MAX20335.
ADDRESS:
0x01
MODE:
Read-Only
BIT
7
6
5
4
3
2
1
0
NAME
Chip_Rev[7:0]
Chip_Rev[7:0]
Chip_Rev[7:0] bits show information about the revision of the MAX20335 silicon.
ADDRESS:
0x02
MODE:
Read-Only
BIT
7
6
5
4
3
2
1
0
NAME
—
—
ThermStat[2:0]
ChgStat[2:0]
ThermStat[2:0]
Status of Thermistor Monitoring
000 = T < T1
001 = T1 < T < T2
010 = T2 < T < T3
011 = T3 < T < T4
100 = T > T4
101
= No thermistor detected (THM high due to external pullup). Note that if a parallel resistor is used for
thermistor monitoring, this mode may not function properly.
110 = NTC input disabled through ThermEn[1:0]
111 = Detection disabled due to
CHGIN not present.
ChgStat[2:0]
Status of Charger Mode
000 = Charger off
001 = Charging suspended due to temperature (see Figure 5a and Figure 5b)
010 = Pre-charge in progress
011, 100 = Fast charge in progress
101 = Maintain charge in progress
110 = Maintain charger timer done
111 = Charger fault condition (see Figure 5a and Figure 5b)
MAX20335
PMIC with Ultra-Low I
Q
Voltage Regulators and
Battery Chargers for Small Lithium Ion Systems
www.maximintegrated.com
Maxim Integrated
│
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