(V
CHGIN
= 5.0V, V
BAT
= 3.7V, T
A
= -40°C to +85°C, all registers in their default state, unless otherwise noted. Typical values are at
T
A
= +25°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
CHARGER TIMER
Maximum
Prequalification Time
t
PChg
PChgTmr = 00
30
min
PChgTmr = 01
60
PChgTmr = 10
120
PChgTmr = 11
240
Maximum Fast-Charge
Time
t
FChg
FChgTmr = 00
75
min
FChgTmr = 01
150
FChgTmr = 10
300
FChgTmr = 11
600
Maintain-Charge Time
t
TOChg
TOChgTmr = 00
0
min
TOChgTmr = 01
15
TOChgTmr = 10
30
TOChgTmr = 11
60
Timer Accuracy
t
CHG_ACC
-10
+10
%
Timer Extend Threshold
TIM
EXD_THRES
If charge current is reduced due to
ILIM or TDIE this is the percentage
of charge current below which timer
clock operates at half speed
50
%I
FChg
Timer Suspend
Threshold
TIM
SUS_THRES
If charge current is reduced due to
ILIM or TDIE this is the percentage
of charge current below which timer
clock pauses
20
%I
FChg
THERMISTOR MONITOR AND NTC D
E
TECTION
THM Hot Threshold
T
4
V
THM
falling
30.9
32.9
34.9
%CAP
V
THM
falling
21.3
23.3
25.3
THM Warm Threshold
T
3
V
THM
falling
48
50
52
V
THM
falling
30.9
32.9
34.9
THM Cool Threshold
T
2
V
THM
rising
62.5
64.5
66.5
THM Cold Threshold
T
1
V
THM
rising
71.9
73.9
75.9
THM Disable Threshold
THM
DIS
V
THM
rising
91
93
95
THM Threshold
Hysteresis
THM
HYS
60
mV
THM Input Leakage
I
LKG_THM
-1
1
µA
MAX20335
PMIC with Ultra-Low I
Q
Voltage Regulators and
Battery Chargers for Small Lithium Ion Systems
www.maximintegrated.com
Maxim Integrated
│
19
Electrical Characteristics (continued)
