MAX17435 查看數據表（PDF） - Maxim Integrated
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MAX17435 Datasheet PDF : 27 Pages
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High-Frequency,
Low-Cost SMBus Chargers
ELECTRICAL CHARACTERISTICS (continued)
(Circuit of Figure 1, no load on LDO, VDCIN = VCSSP = VCSSN = 19V, VLX = 0V, VBST - VLX = 5V, VBATT = VCSIP = VCSIN = 16.8V,
TA = 0°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.)
PARAMETER
SYMBOL
CONDITIONS
ADAPTER OVERVOLTAGE PROTECTION
ACOVP Threshold
Rising
ACOVP Threshold Hysteresis
ADAPTER OVERCURRENT PROTECTION
ACOCP Threshold
With respect to VCSSP - VCSSN
ACOCP Blanking Time
MIN TYP MAX UNITS
2.04
2
2.1
V
30
mV
144
mV
16
ms
ACOCP Waiting Time
When ACOCP comparator is high and at the
time the blanking time expires
0.6
s
PDSL SWITCH CONTROL
PDSL Turn-Off Resistance
SMBus TIMING SPECIFICATIONS
SMBus Frequency
fSMB
Bus Free Time
tBUF
START Condition Hold Time
from SCL
tHD:STA
2.5
4
kI
10
100
kHz
4.7
Fs
4
Fs
START Condition Setup Time
from SCL
tSU:STA
4.7
Fs
STOP Condition Setup Time
from SCL
tSU:STO
4
Fs
Holdup Time from SCL
Setup Time from SCL
SCL Low Period
SCL High Period
tHD:DAT
tSU:DAT
tLOW
tHIGH
300
ns
250
ns
4.7
Fs
4
Fs
Maximum Charging Period
Without a Charge_Voltage() or
ChargeCurrent() Command
140 175 210
s
ELECTRICAL CHARACTERISTICS
(Circuit of Figure 1, no load on LDO, VDCIN = VCSSP = VCSSN = 19V, VLX = 0V, VBST - VLX = 5V, VBATT = VCSIP = VCSIN = 16.8V,
TA = -40°C to +85°C, unless otherwise noted.) (Note 2)
PARAMETER
INPUT SUPPLIES
SYMBOL
CONDITIONS
MIN
MAX UNITS
Adapter Present Quiescent
Current
IDCIN + ICSSP +
ICSSN (Note 1)
Charging enabled,
VADAPTER = 19V,
VBATTERY = 16.8V
Charging disabled
6
mA
2.2
mA
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