MAX8934AETI Ver la hoja de datos (PDF) - Maxim Integrated
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componentes Descripción
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
BATT Charge Current Accuracy
CONDITIONS
VSYS = 5.5V,
VTHM_T2 < VTHM
< VTHM_T4 (safety
region 1) or VTHM_T1
< VTHM < VTHM_T4
(safety region 2)
RISET = 2kI
RISET = 4kI
RISET = 10kI
RISET = 2kI, VBATT = 2.5V
(prequal)
RISET = 4kI, VBATT = 2.5V
(prequal)
RISET = 10kI, VBATT = 2.5V
(prequal)
VSYS = 5.5V,
VTHM_T1 < VTHM
< VTHM_T2 (safety
region 1)
RISET = 2kI
RISET = 4kI
RISET = 10kI
RISET = 2kI, VBATT = 2.5V
(prequal)
RISET = 4kI, VBATT = 2.5V
(prequal)
MIN
1350
675
270
130
TYP
1500
750
300
150
MAX
1650
825
330
170
UNITS
50
75
100
30
mA
675 750 825
337.5 375 412.5
130 150 170
100 150 200
50
75
100
RISET = 10kI, VBATT = 2.5V
(prequal)
30
ISET Output Voltage
Charger Soft-Start Time
BATT Prequal Threshold
BATT Input Current
RISET = 4kI, IBATT = 500mA (VISET = 1.5V at full
charge current) VTHM_T2 < VTHM < VTHM_T4
0.9
1
1.1
V
Charge-current ramp time
1.5
ms
VBATT rising, 180mV hysteresis
2.9
3
3.1
V
No DC or USB power
connected, THMEN = low,
VCEN = 5V
5
12
VBATT = 4.2V,
ILDO = 0
No DC or USB power
connected, THMEN = high,
V CEN = 5V
12
25
FA
DC or USB power connected,
V CEN = 5V
0.003
2
DONE Threshold as a
Percentage of Fast-Charge
Current
IBATT decreasing
10
%
_______________________________________________________________________________________ 5
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