MAX8934AETI Ver la hoja de datos (PDF) - Maxim Integrated
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Fabricante
MAX8934AETI
Maxim Integrated
MAX8934AETI Datasheet PDF : 31 Pages
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Dual-Input Linear Chargers, Smart Power Selector
with Advanced Battery Temperature Monitoring
ELECTRICAL CHARACTERISTICS (continued)
(VDC = VPEN1 = VPEN2 = 5V, CEN = USUS = THMEN = GND, VBATT = 4V, VTHM = 1.65V, USB, THMSW, CHG, DONE, OT, DOK,
UOK, FLT are unconnected, CCT = 0.068FF, TA = -40NC to +85NC, unless otherwise noted. Typical values are at TA = +25NC.) (Note 1)
PARAMETER
BATTERY CHARGER
BATT-to-SYS On-Resistance
BATT-to-SYS Reverse
Regulation Voltage
CONDITIONS
VDC = 0V, VBATT = 4.2V, ISYS = 1A
VPEN1 = VPEN2 = 0V, ISYS = 200mA
MIN TYP MAX UNITS
0.04 0.08
I
50
75
105
mV
BATT Regulation Voltage—Safety
Region 1 (MAX8934A)
IBATT = 0mA
BATT Regulation Voltage—Safety
Region 2
IBATT = 0mA
TA = +25NC, VTHM_T1 < VTHM <
VTHM_T3
4.175
4.2
4.225
TA = 0NC to +85NC, VTHM_T1 <
VTHM < VTHM_T3
4.158
4.2
4.242
V
TA = +25NC, VTHM_T3 < VTHM <
VTHM_T4
4.05
4.075
4.1
TA = 0NC to +85NC, VTHM_T3 <
VTHM < VTHM_T4
4.034 4.075
4.1
TA = +25NC, VTHM_T2 < VTHM <
VTHM_T3
4.175
4.2
4.225
TA = 0NC to +85NC, VTHM_T2 <
VTHM < VTHM_T3
4.158
4.2
4.242
TA = +25NC, VTHM_T1 < VTHM <
V
VTHM_T2 or VTHM_T3 < VTHM < 4.05 4.075 4.1
VTHM_T4
TA = 0NC to +85NC, VTHM_T1 <
VTHM < VTHM_T2 or VTHM_T3 < 4.034 4.075 4.1
VTHM < VTHM_T4
BATT Recharge Threshold—
Safety Region 1 (MAX8934A)
Change in VBATT
from DONE to fast-
charge restart
VTHM_T1 < VTHM < VTHM_T3
VTHM_T3 < VTHM < VTHM_T4
-145 -104 -65
mV
-120 -80
-40
BATT Recharge Threshold—
Safety Region 2
Change in VBATT
VTHM_T2 < VTHM < VTHM_T3
-145 -104 -65
from DONE to fast-
charge restart
VTHM_T1 < VTHM < VTHM_T2 or
VTHM_T3 < VTHM < VTHM_T4
-120
-80
-40
mV
BATT Fast-Charge
Current Range
RISET = 10kI to 2kI
0.3
1.5
A
4 _______________________________________________________________________________________
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