LTC4311 데이터 시트보기 (PDF) - Linear Technology
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LTC4311 Datasheet PDF : 12 Pages
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LTC4311
E• LECTRICAL CHARACTERISTICS The ● denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VCC = 3.3V, unless otherwise noted.
SYMBOL PARAMETER
CONDITIONS
MIN TYP MAX UNITS
VCC
Positive Supply Voltage
ICC
Supply Current
ICC_STANDBY Supply Current, Standby Mode
ICC_DISABLED Supply Current, Disabled
IPULLUPAC Transient Boosted Pull-up Current
IBUS(IN)
IENABLE(IN)
VTHR
BUS1,BUS2, Input Leakage Current
ENABLE Input Leakage Current
Bus Input Threshold Voltage
VTHR_ENABLE ENABLE Threshold Voltage
SRTHRESH
tr
Slew Rate Detector Threshold
Fast Mode I2C Bus Rise Time
fMAX
Bus Maximum Operating Frequency
● 1.6
5.5
V
VCC = 5.5V, ENABLE = 5.5V, VBUS1 = VBUS2 = 0V ●
200
300
μA
VCC = 5.5V, ENABLE = 5.5V, VBUS1 = VBUS2 = 5.5V ●
26
45
μA
VCC = 5.5V, ENABLE = 0V, VBUS1 = VBUS2 = 5.5V ●
±5
μA
Positive Transition on Bus, Slew Rate = 0.5V/μs ● 2.5
5
mA
VCC = 1.8V, BUS > VTHR
VCC = 0V, VBUS1 = VBUS2 = 5.5V
●
±5
μA
VCC = 0V, VENABLE = 5.5V
●
±10
μA
VCC = 1.8V
● 0.45 0.55 0.65
V
VCC = 2.5V
● 0.65 0.75 0.85
V
VCC = 2.7V to 5.5V
● 0.68 0.78 0.88
V
VCC = 1.6V, 5.5V
● 0.4
1
1.5
V
BUS > VTHR, VCC = 1.8V, 5.5V
●
0.2
0.5 V/μs
Bus Capacitance = 400pF, VCC = 3V (Note 4)
●
300
ns
(Note 5)
● 400
kHz
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2: All currents into pins are positive. All voltages are referenced to
GND unless otherwise specified.
Note 3: Thermal characteristics are determined with exposed pad soldered
to GND plane. If the exposed pad is left open, thermal characteristics can
be drastically different.
Note 4: The rise time of an I2C bus line is calculated from VIL(MAX) to
VIH(MIN) or 0.9V to 2.1V (with VCC = 3V). This parameter is guaranteed by
design and not tested. With a minimum boosted pull-up current of 2.5mA:
Rise Time = (2.1V – 0.9V) • 400pF/2.5mA = 0.19μs.
Note 5: Determined by design, not tested in production.
4311fa
3
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