MAX8568A Просмотр технического описания (PDF) - Maxim Integrated
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MAX8568A Datasheet PDF : 17 Pages
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Complete Backup-Management ICs
for Lithium and NiMH Batteries
ELECTRICAL CHARACTERISTICS (continued)
(Circuit of Figure 7, VIN = VINOK = 3.6V, VBK = 1.4V, VNI/LI = VBKSU = 3.3V, VBKV = GND = PGND = 0V, VSTRTV = VTERMV = 1.2V,
R5 = 250kΩ, TA = 0°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1)
PARAMETER
NI/LI Input Current
OD_ On-Resistance
OD_ Leakage Current
BACKUP STEP-UP (Note 2)
BK Input Undervoltage Lockout
BK Input Voltage
Quiescent Current into BKSU
Quiescent Current into BK
Shutdown Current into BK
BKV Feedback Voltage
BKV Feedback Bias Current
BKSU Output-Voltage Accuracy
BKSU Output Voltage Range
n-Channel Switch On-Resistance
p-Channel Switch On-Resistance
LX Leakage Current
LX Current Limit (ILIM)
n-Channel Switch Maximum On-Time
p-Channel Zero-Channel Crossing Current
LOW-DROPOUT REGULATOR
BKSU Input Voltage Range
LDO Output-Voltage Accuracy
LDO Line Regulation
LDO Load Regulation
CONDITIONS
VBKSU = VNI/LI = 3.3V
TA = +25°C
TA = +85°C
VBKSU = 3.6V
VOD_ = 5.5V
TA = +25°C
TA = +85°C
MIN TYP MAX UNITS
0.05
1
µA
0.1
11
30
Ω
0.01
1
µA
0.1
VNI/LI = 0V, falling trip point
VNI/LI = VBKSU = 3.3V, falling trip point
2.45
V
1.05 1.12 1.21
5.5
V
ILDO = 0mA, not switching
IBKSU = ILDO = 0mA, not switching
17
25
µA
2.4
4
µA
VIN = VINOK = VBKSU = 0V
TA = +25°C
TA = +85°C
0.001 0.5
µA
0.1
1.162 1.21 1.258
V
VBKV = 1V
TA = +25°C
TA = +85°C
5
50
nA
10
VBKV = 0V
VBKV = VBKSU
3.17
3.3
3.43
V
2.4
2.5
2.6
2.5
5
V
ILX = 200mA
0.4
1
Ω
ILX = 200mA
TA = +25°C
TA = +85°C
0.7
2
Ω
0.05
1
µA
0.1
400 500 600
mA
3.5
5
6.5
µs
5
20
35
mA
2.7
5.0
V
VBKSU = 3.3V
MAX8568A 2.375 2.5 2.625
V
MAX8568B
1.71
1.8
1.89
2.7V < VBKSU < 5V, ILDO = 1mA
1
mV
1µA < ILDO < 10mA
2.5
mV
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