參數(shù)資料
型號： LTC491IS
廠商： Linear Technology
文件頁數(shù)： 5/12頁
文件大?。?/td> 0K
描述： IC TXRX RS485 LOWPWR DIFF 14SOIC
標準包裝： 55
類型： 收發(fā)器
驅動器/接收器數(shù)： 1/1
規(guī)程： RS422，RS485
電源電壓： 4.75 V ~ 5.25 V
安裝類型： 表面貼裝
封裝/外殼： 14-SOIC（0.154"，3.90mm 寬）
供應商設備封裝： 14-SOIC
包裝： 管件
LTC491
2
491fa
A
U
G
W
A
W
U
W
A
R
BSOLUTEXI
TI
S
WU
U
PACKAGE/ORDER I FOR ATIO
ORDER PART
NUMBER
LTC491CN
LTC491CS
LTC491IN
LTC491IS
(Note 1)
Supply Voltage (VCC) ............................................... 12V
Control Input Voltages .................... –0.5V to VCC + 0.5V
Control Input Currents .......................... –50mA to 50mA
Driver Input Voltages ...................... –0.5V to VCC + 0.5V
Driver Input Currents ............................ –25mA to 25mA
Driver Output Voltages ..........................................
±14V
Receiver Input Voltages .........................................
±14V
Receiver Output Voltages ............... –0.5V to VCC + 0.5V
Operating Temperature Range
LTC491C ................................................. 0
°C to 70°C
LTC491I .............................................. – 40
°C to 85°C
Storage Temperature Range ................. – 65
°C to 150°C
Lead Temperature (Soldering, 10 sec).................. 300
°C
The q denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VCC = 5V ±5%
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
VOD1
Differential Driver Output Voltage (Unloaded)
IO = 0
q
5V
VOD2
Differential Driver Output Voltage (With load)
R = 50
; (RS422)
q
2V
R = 27
; (RS485) (Figure 1)
q
1.5
5
V
VOD
Change in Magnitude of Driver Differential Output
R = 27
or R = 50 (Figure 1)
q
0.2
V
Voltage for Complementary Output States
VOC
Driver Common Mode Output Voltage
q
3V
VOC
Change in Magnitude of Driver Common Mode
q
0.2
V
Output Voltage for Complementary Output States
VIH
Input High Voltage
D, DE, REB
q
2.0
V
VIL
Input Low Voltage
q
0.8
V
lIN1
Input Current
q
±2
A
lIN2
Input Current (A, B)
VCC = 0V or 5.25V
VIN = 12V
q
1.0
mA
VIN = –7V
q
– 0.8
mA
VTH
Differential Input Threshold Voltage for Receiver
– 7V
≤VCM ≤12V
q
– 0.2
0.2
V
VTH
Receiver Input Hysteresis
VCM = 0V
q
70
mV
VOH
Receiver Output High Voltage
IO = –4mA, VID = 0.2V
q
3.5
V
VOL
Receiver Output Low Voltage
IO = 4mA, VID = –0.2V
q
0.4
V
IOZR
Three-State Output Current at Receiver
VCC = Max 0.4V ≤ VO ≤ 2.4V
q
±1
A
ICC
Supply Current
No Load; D = GND,
Outputs Enabled
q
300
500
A
or VCC
Outputs Disabled
q
300
500
A
RIN
Receiver Input Resistance
– 7V
≤VCM ≤12V
q
12
k
IOSD1
Driver Short Circuit Current, VOUT = High
VO = –7V
q
100
250
mA
IOSD2
Driver Short Circuit Current, VOUT = Low
VO = 12V
q
100
250
mA
IOSR
Receiver Short Circuit Current
0V
≤VO ≤VCC
q
785
mA
IOZ
Driver Three-State Output Current
VO = – 7V to 12V
q
±2
±200
A
14
13
12
11
10
9
8
7
6
5
4
3
2
1
TOP VIEW
S PACKAGE
14-LEAD PLASTIC SO
NC
N PACKAGE
14-LEAD PDIP
Y
NC
Z
B
NC
VCC
D
GND
R
REB
DE
A
R
D
TJMAX = 100°C, θJA = 90°C/W (N)
TJMAX = 100°C, θJA = 110°C/W (S)
Consult LTC Marketing for parts specified with wider operating temperature ranges.
DC ELECTRICAL CHARACTERISTICS
相關PDF資料
PDF描述
IDT72V205L10PFG IC FIFO SYNC 16KX9 10NS 64QFP
IDT72V205L10PF IC FIFO SYNC 16KX9 10NS 64QFP
VE-25Y-MW CONVERTER MOD DC/DC 3.3V 66W
LT6300IGN#TRPBF IC XDSL LINE DRIVER 16-SSOP
VI-262-MX-F1 CONVERTER MOD DC/DC 15V 75W
相關代理商/技術參數(shù)
參數(shù)描述
LTC491IS#PBF 功能描述:IC TXRX RS485 LOW POWER 14-SOIC RoHS:是 類別:集成電路 (IC) >> 接口 - 驅動器，接收器，收發(fā)器 系列:- 產(chǎn)品培訓模塊:RS-232 & USB Transceiver 標準包裝:2,000 系列:- 類型:收發(fā)器 驅動器/接收器數(shù):1/1 規(guī)程:RS232 電源電壓:3 V ~ 5.5 V 安裝類型:表面貼裝 封裝/外殼:16-SSOP（0.209"，5.30mm 寬） 供應商設備封裝:16-SSOP 包裝:帶卷 (TR) 其它名稱:296-19849-2
LTC491IS#PBF 制造商:Linear Technology 功能描述:Driver/Receiver IC
LTC491IS#TR 功能描述:IC TXRX RS485 LOW POWER 14-SOIC RoHS:否 類別:集成電路 (IC) >> 接口 - 驅動器，接收器，收發(fā)器 系列:- 標準包裝:27 系列:- 類型:收發(fā)器 驅動器/接收器數(shù):3/3 規(guī)程:RS232，RS485 電源電壓:4.75 V ~ 5.25 V 安裝類型:表面貼裝 封裝/外殼:28-SOIC（0.295"，7.50mm 寬） 供應商設備封裝:28-SOIC 包裝:管件
LTC491IS#TRPBF 功能描述:IC TXRX RS485 LOW POWER 14-SOIC RoHS:是 類別:集成電路 (IC) >> 接口 - 驅動器，接收器，收發(fā)器 系列:- 標準包裝:27 系列:- 類型:收發(fā)器 驅動器/接收器數(shù):3/3 規(guī)程:RS232，RS485 電源電壓:4.75 V ~ 5.25 V 安裝類型:表面貼裝 封裝/外殼:28-SOIC（0.295"，7.50mm 寬） 供應商設備封裝:28-SOIC 包裝:管件
LTC491ISPBF 制造商:Linear Technology 功能描述:RS-485/RS-422 Driver/Receiver SOIC14
發(fā)布緊急采購，3分鐘左右您將得到回復。

采購需求

(若只采購一條型號，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*