参数资料
型号: LTC4303IDD#PBF
厂商: Linear Technology
文件页数: 2/12页
文件大小: 549K
描述: IC BUS BUFFER I2C 8-DFN
产品培训模块: LTC4310 - Hot-Swappable I²C Isolators
标准包装: 121
类型: 热交换开关
应用: 通用型缓冲器/总线扩展器
内部开关:
电源电压: 2.7 V ~ 5.5 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 8-WFDFN 裸露焊盘
供应商设备封装: 8-DFN-EP(3x3)
包装: 管件
LTC4303
2
4303fb
ABSOLUTE   AXI  U  RATI  GS
W
W
U
FOR  ATIO
PACKAGE/ORDER I
U
W
V
CC
 to GND ..................................................0.3V to 7V
SDAIN, SCLIN, SDAOUT, SCLOUT,
READY, ENABLE ...........................................0.3V to 7V
 Operating Temperature
   LTC4303C ................................................0癈 to 70癈
   LTC4303I .............................................40癈 to 85癈
(Notes 1, 2)
SDAIN, SCLIN, SDAOUT, SCLOUT, READY
(Note 3) ..................................................................30mA
Storage Temperature Range
   MSOP ................................................65癈 to 150癈
   DFN ....................................................65癈 to 125癈
Lead Temperature (Soldering, 10sec)
   MSOP ...............................................................300癈
ELECTRICAL CHARACTERISTICS
 
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.
SYMBOL
PARAMETER
CONDITIONS
 
MIN
TYP
MAX
UNITS
Power Supply
V
CC
 
Positive Supply Voltage
 
?SPAN class="pst LTC4303CDD-TRPBF_2330545_10"> 
2.7
 
5.5
V
I
CC
 
Supply Current
V
CC
 = 5.5V, V
SDAIN
= V
SDAOUT
= 0V (Note 7)     ?/SPAN>
 
6
8
mA
 
Supply Current, ENABLE = GND
V
CC
 = 5.5V
 
 
1.5
 
mA
Startup Circuitry
V
PRE
 
Precharge Voltage
SDA, SCL Floating, V
CC
 = 5.5V
?
0.8
1
1.2
V
T
IDLE
 
Bus Idle Time
 
?SPAN class="pst LTC4303CDD-TRPBF_2330545_10"> 
60
95
175
V
OL_READY
 
READY Output Low Voltage
I
PULLUP
= 3mA
?SPAN class="pst LTC4303CDD-TRPBF_2330545_10"> 
 
 
0.4
V
 
 
I
PULLUP
 = 6mA, V
CC
 = 4.7V
?SPAN class="pst LTC4303CDD-TRPBF_2330545_10"> 
 
 
0.4
V
V
THR_ENABLE
 
ENABLE Threshold 
 
?SPAN class="pst LTC4303CDD-TRPBF_2330545_4">     0.8 
1.4
2
V
I
ENABLE
 
ENABLE Input Current
ENABLE from 0 to V
CC
 
?SPAN class="pst LTC4303CDD-TRPBF_2330545_10"> 
 
0.1
?.5
V
THR
 
SDA, SCL Logic Input Threshold Voltage   Rising Edge
?SPAN class="pst LTC4303CDD-TRPBF_2330545_10"> 
1.6
1.8
2
V
T
JMAX
 = 125癈, ?/DIV>
JA
 = 200癈/W
T
JMAX
 = 125癈, ?/DIV>
JA
 = 43癈/W
TOP VIEW
DD PACKAGE
8-LEAD (3mm ?3mm) PLASTIC DFN
5
6
7
8
4
3
2
1
ENABLE
SCLOUT
SCLIN
GND
V
CC
SDAOUT
SDAIN
READY
EXPOSED PAD (PIN 9)
PCB CONNECTION OPTIONAL
9
1
2
3
4
ENABLE
SCLOUT
SCLIN
GND
8
7
6
5
V
CC
SDAOUT
SDAIN
READY
TOP VIEW
MS8 PACKAGE
8-LEAD PLASTIC MSOP
ORDER PART NUMBER
DD PART MARKING*
ORDER PART NUMBER
MS8 PART MARKING*
LTC4303CDD
LTC4303IDD
LBPZ
LTC4303CMS8
LTC4303IMS8
LTBPY
Order Options   Tape and Reel: Add #TR   Lead Free: Add #PBF   Lead Free Tape and Reel: Add #TRPBF
Lead Free Part Marking: http://www.linear.com/leadfree/
Consult LTC Marketing for parts speci ed with wider operating temperature ranges. *The temperature grade is identi ed by a label on the shipping container.
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