参数资料
型号: LTC4306CGN#PBF
厂商: Linear Technology
文件页数: 15/20页
文件大小: 0K
描述: IC MUX 4CH 2-WIRE BUS 24-SSOP
产品培训模块: LTC4310 - Hot-Swappable I²C Isolators
标准包装: 55
应用: 带放大器的多路复用器
接口: SMBus(2 线/I²C)
电源电压: 2.2 V ~ 5.5 V
封装/外壳: 24-SSOP(0.154",3.90mm 宽)
供应商设备封装: 24-SSOP
包装: 管件
安装类型: 表面贴装
产品目录页面: 1355 (CN2011-ZH PDF)
LTC4306
4306f
4
The
denotes specifications which apply over the full specified temperature
range, otherwise specifications are at TA = 25°C. VCC = 3.3V unless otherwise noted.
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2: Guaranteed by design and not subject to test.
Note 3: The boosted pull-up currents are regulated to prevent excessively
fast edges for light loads. See the Typical Performance Characteristics for
rise time as a function of VCC and parasitic bus capacitance CBUS and for
IBOOST as a function of VCC and temperature.
Note 4: When a logic low voltage, VLOW, is forced on one side of the
Upstream-Downstream Buffers, the voltage on the other side is regulated
to a voltage VLOW2 = VLOW + VOS, where VOS is a positive offset voltage.
VOS,UP-BUF is the offset voltage when the LTC4306 is driving the upstream
pin (e.g., SDAIN) and VOS,DOWN-BUF is the offset voltage when the
LTC4306 is driving the downstream pin (e.g., SDA1). See the Typical
Performance Characteristics for VOS,UP-BUF and VOS,DOWN-BUF as a
function of VCC and bus pull-up current.
Note 5: When floating, the ADR0-ADR2 pins can tolerate pin leakage
currents up to IADR(FLOAT) and still convert the address correctly.
ELECTRICAL CHARACTERISTICS
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
VALERT1-4(IN)
ALERT1-ALERT4 Pin Input Falling
0.8
1.0
1.2
V
Threshold Voltages
VALERT1-4(HY)
ALERT1-ALERT4 Pin Input Threshold
80
mV
Hysteresis Voltages
I2C Interface
VADR(H)
ADR0-2 Input High Voltage
0.75 VCC 0.9 VCC
V
VADR(L)
ADR0-2 Input Low Voltage
0.1 VCC 0.25 VCC
V
IADR(IN, L)
ADR0-2 Logic Low Input Current
ADR0-2 = 0V, VCC = 5.5V
–30
–60
–80
A
IADR(FLOAT)
ADRO-2 Allowed Input Current
VCC = 2.7V, 5.5V (Note 5)
±5
±13
A
IADR(IN, H)
ADR0-2 Logic High Input Current
ADR0-2 = VCC = 5.5V
30
60
80
A
VSDAIN,SCLIN(TH) SDAIN, SCLIN Input Falling Threshold
VCC = 5.5V
1.4
1.6
1.8
V
Voltages
VSDAIN,SCLIN(HY) SDAIN, SCLIN Hysteresis
30
mV
ISDAIN,SCLIN(OH) SDAIN, SCLIN Input Current
SCL, SDA = VCC
0
±5
A
CIN
SDA, SCL Input Capacitance
(Note 2)
6
pF
VSDAIN(OL)
SDAIN Output Low Voltage
ISDA = 4mA, VCC = 2.7V
0.2
0.4
V
I2C Interface Timing
fSCL
Maximum SCL Clock Frequency
(Note 2)
400
kHz
tBUF
Bus Free Time Between Stop/Start Condition
(Note 2)
0.75
1.3
s
tHD,STA
Hold Time After (Repeated) Start Condition
(Note 2)
45
100
ns
tSU,STA
Repeated Start Condition Set-up Time
(Note 2)
–30
0
ns
tSU,STO
Stop Condition Set-up Time
(Note 2)
–30
0
ns
tHD,DATI
Data Hold Time Input
(Note 2)
–25
0
ns
tHD,DATO
Data Hold Time Output
(Note 2)
300
600
900
ns
tSU,DAT
Data Set-up Time
(Note 2)
50
100
ns
tf
SCL, SDA Fall Times
(Note 2)
20 + 0.1
300
ns
CBUS
tSP
Pulse Width of Spikes Suppressed by the
(Note 2)
50
150
250
ns
Input Filter
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