參數(shù)資料
型號(hào): LTC4304IDD#TRPBF
廠商: Linear Technology
文件頁(yè)數(shù): 3/16頁(yè)
文件大小: 644K
描述: IC BUS BUFFER I2C 10-DFN
產(chǎn)品培訓(xùn)模塊: LTC4310 - Hot-Swappable I²C Isolators
標(biāo)準(zhǔn)包裝: 2,500
類型: 熱交換開關(guān)
應(yīng)用: 通用型緩沖器/總線擴(kuò)展器
內(nèi)部開關(guān):
電源電壓: 2.7 V ~ 5.5 V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 10-WFDFN 裸露焊盤
供應(yīng)商設(shè)備封裝: 10-DFN(3x3)
包裝: 帶卷 (TR)
LTC4304
3
4304fa
 
The ?/SPAN> denotes the speci cations which apply over the full operating
temperature range, otherwise speci cations are at T
A
 = 25癈. V
CC
 = 2.7V to 5.5V, unless otherwise noted.
voltage than its input. The magnitude of this offset voltage as a function of
the pull-up resistor and V
CC
 voltage is shown in the Typical Performance
Characteristics section.
Note 5: I
PULLUPAC
 varies with temperature and V
CC
 voltage, as shown in
the Typical Performance Characteristics section.
Note 6: Determined by design, not tested in production.
Note 7: I
CC
 test performed with connection circuitry active.
Note 8: When   oating, the ACC pin can tolerate ?/SPAN>5?/SPAN>A of leakage.
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 speci ed.
Note 3: Pulsed less than 5?/SPAN>s.
Note 4: The connection circuitry always regulates the output to a higher 
SYMBOL
PARAMETER
CONDITIONS
 
MIN
TYP
MAX
UNITS
V
HYS
 
SDA, SCL, Logic Input Threshold Voltage (Note 6)
 
 
50
 
mV
 
Hysteresis
t
PLH
 
ENABLE Delay On-Off
V
CC
 = 3.3V
 
 
300
 
ns
 
READY Delay Off-On
(Note 6)
 
 
10
 
ns
t
PHL
 
ENABLE Delay Off-On
V
CC
 = 3.3V
?SPAN class="pst LTC4304IDD-TRPBF_2350817_6"> 
60
95
175
 
READY Delay On-Off
(Note 6)
 
 
10
 
ns
I
OFF_READY
 
Ready Off Leakage Current
 
?SPAN class="pst LTC4304IDD-TRPBF_2350817_6"> 
 
 
?0
礎(chǔ)
Rise-Time Accelerators
I
PULLUPAC
 
Transient Boosted Pull-Up Current
Positive Transition on SDA, SCL, V
CC
= 2.7V,    
2
3.5
5.5
mA
 
 
Slew Rate = 0.8V/祍 (Note 5)
 
t
PDOFF
 
ACC Delay, On/Off
(Note 6)
 
 
5
 
ns
V
IH
 
Input High Voltage
Measured on ACC
?SPAN class="pst LTC4304IDD-TRPBF_2350817_6">   0.9V
CC
 
 
 
V
V
IL
 
Input Low Voltage
Measured on ACC
?SPAN class="pst LTC4304IDD-TRPBF_2350817_6"> 
 
 
0.1V
CC
 
V
I
IN
 
ACC Input Current
ACC Shorted to GND or V
CC
(Note 8)
 
?   100 
 
100
礎(chǔ)
Bus Stuck Low Timeout
t
TIMEOUT
 
Bus Stuck Low Timer
SDAOUT, SCLOUT = 0V
?
25
30
35
ms
V
OLFAULT
 
FAULT Output Low Voltage
I
PULLUP
 = 3mA
?SPAN class="pst LTC4304IDD-TRPBF_2350817_6"> 
 
 
0.4
V
I
OFF_FAULT
 
 
V
CC
 = 5.5V
?SPAN class="pst LTC4304IDD-TRPBF_2350817_6"> 
 
 
?0
礎(chǔ)
Input-Output Connection
V
OS
 
Input-Output Offset Voltage
10k to V
CC
 on SDA, SCL,
?
40
80
120
mV
 
 
2.7k to V
CC
 on SDA, SCL
?SPAN class="pst LTC4304IDD-TRPBF_2350817_6"> 
50
100
150
mV
 
 
V
CC
= 3.3V, V
SDA/SCL
= 0.2V (Note 4)
C
IN
 
Digital Input Capacitance
(Note 6)
 
 
 
10
pF
 
SDAIN, SDAOUT, SCLIN, SCLOUT
V
IL, MAX
Input Logic Low Voltage
 
?SPAN class="pst LTC4304IDD-TRPBF_2350817_6"> 
 
 
0.4
V
I
LEAK
 
Input Leakage Current
SDA, SCL, V
CC
 = 5.5V
?SPAN class="pst LTC4304IDD-TRPBF_2350817_6"> 
 
 
?
礎(chǔ)
V
OL
 
Output Low Voltage, Input = 0V
SDA, SCL Pins, I
SINK
 = 4mA, V
CC
 = 2.7V
?SPAN class="pst LTC4304IDD-TRPBF_2350817_6"> 
0
0.19
0.3
V
Timing Characteristics
f
I2C, MAX
 
I
2
C Maximum Operating Frequency
(Note 6)
 
400
600
 
kHz
t
BUF
 
Bus Free Time Between Stop and Start     (Note 6)
 
 
 
1.3
 
Condition
t
HD, STA
 
Hold Time After (Repeated)
(Note 6)
 
 
 
100
ns
 
Start Condition
t
SU, STA
 
Repeated Start Condition Set-Up Time
(Note 6)
 
 
 
0
ns
t
SU, STO
 
Stop Condition Set-Up Time
(Note 6)
 
 
 
0
ns
t
HD, DATI
 
Data Hold Time Input
(Note 6)
 
 
 
0
ns
t
SU, DAT
 
Data Set-Up Time
(Note 6)
 
 
 
100
ns
ELECTRICAL CHARACTERISTICS
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