Datasheet

7Maxim Integrated
Dual-Input Linear Chargers, Smart Power Selector
with Advanced Battery Temperature Monitoring
MAX8934A–MAX8934E
ELECTRICAL CHARACTERISTICS (continued)
(V
DC
= V
PEN1
= V
PEN2
= 5V, CEN = USUS = THMEN = GND, V
BATT
= 4V, V
THM
= 1.65V, USB, THMSW, CHG, DONE, OT, DOK,
UOK, FLT are unconnected, C
CT
= 0.068FF, T
A
= -40NC to +85NC, unless otherwise noted. Typical values are at T
A
= +25NC.) (Note 1)
Note 1: Limits are 100% production tested at T
A
= +25NC. Limits over the operating temperature range are guaranteed by design.
Note 2: NC includes external NTC thermistor error. % of THMSW excludes thermistor beta error and external pullup error. NTC
thermistor assumed to be 10kI nominal, part number Vishay NTHS0603N02N1002FF, external pullup resistor = 10kI.
Note 3: NC includes external NTC thermistor error. % of THMSW excludes thermistor beta error and external pullup error. NTC
thermistor assumed to be 100kI Q1% nominal, part number Vishay NTHS0603N01N1003FF, external pullup resistor =
100kI Q1%.
PARAMETER CONDITIONS MIN TYP MAX UNITS
THM Hot Threshold (T3) V
BATT_REG
reduced, safety region 1, 2.5NC hysteresis
42.8 45 47.5 NC
29.8 30 30.6
% of
THMSW
THM Hot No-Charge Threshold
(T4)
I
CHG
= 0mA, when charging is suspended, 3NC
hysteresis
57 60 63.5 NC
19.5 19.8 20.1
% of
THMSW
THM Hot Overtemperature
Threshold (T
OT
)
OT asserts low, 5NC hysteresis
71 75 80 NC
12.6 12.9 13.1
% of
THMSW
THM Input leakage THM = GND or LDO
T
A
= +25NC -1 +0.001 +1
FA
T
A
= +85NC 0.01
THMSW Output Leakage THMSW = GND
T
A
= +25NC -0.2 +0.001 +1
FA
T
A
= +85NC 0.01
THMSW Output Voltage High Sourcing 1mA
V
LDO
-
0.05
V
LOGIC I/O: PEN1, PEN2, CHG, FLT, DONE, DOK, UOK, USUS, THMEN)
Logic-Input Thresholds
High level 1.3
V
Low level 0.4
Hysteresis 50 mV
Logic-Input Leakage Current V
IN
= 0 to 5.5V
T
A
= +25NC 0.001 1
FA
T
A
= +85NC 0.01
Logic-Low Output Voltage Sinking 1mA 25 100 mV
Logic-High Output Leakage
Current
V
OUT
= 5.5V
T
A
= +25NC 0.001 1
FA
T
A
= +85NC 0.01