LTC1481C(RevA) Просмотр технического описания (PDF) - Linear Technology
Номер в каталоге
Компоненты Описание
производитель
LTC1481C Datasheet PDF : 8 Pages
| |||
LTC1481
ABSOLUTE AXI U RATI GS
(Note 1)
Supply Voltage (VCC) .............................................. 12V
Control Input Voltage ..................... – 0.5V to VCC + 0.5V
Driver Input Voltage ....................... – 0.5V to VCC + 0.5V
Driver Output Voltage ........................................... ±14V
Receiver Input Voltage .......................................... ±14V
Receiver Output Voltage ................ – 0.5V to VCC + 0.5V
Operating Temperature Range
LTC1481C ....................................... 0°C ≤ TA ≤ 70°C
LTC1481I .................................... – 40°C ≤ TA ≤ 85°C
Storage Temperature Range ................ – 65°C to 150°C
Lead Temperature (Soldering, 10 sec)................. 300°C
UW U
PACKAGE/ORDER I FOR ATIO
TOP VIEW
RO 1
RE 2
R
8 VCC
7B
DE 3
DI 4
D
6A
5 GND
N8 PACKAGE
8-LEAD PDIP
S8 PACKAGE
8-LEAD PLASTIC SO
TJMAX = 125°C, θJA = 130°C/ W (N8)
TJMAX = 125°C, θJA = 150°C/ W (S8)
ORDER PART
NUMBER
LTC1481CN8
LTC1481IN8
LTC1481CS8
LTC1481IS8
S8 PART MARKING
1481
1481I
Consult LTC Marketing for parts specified with wider operating temperature ranges.
ELECTRICAL CHARACTERISTICS The q denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VCC = 5V (Notes 2, 3) unless otherwise noted.
SYMBOL PARAMETER
CONDITIONS
MIN
TYP
MAX UNITS
VOD1
Differential Driver Output Voltage (Unloaded)
VOD2
Differential Driver Output Voltage (with Load)
IO = 0
R = 50Ω (RS422)
R = 27Ω (RS485), Figure 1
q
q 2.0
q 1.5
5
V
V
5
V
∆VOD
Change in Magnitude of Driver Differential Output R = 27Ω or R = 50Ω, Figure 1
q
Voltage for Complementary Output States
0.2
V
VOC
Driver Common Mode Output Voltage
R = 27Ω or R = 50Ω, Figure 1
q
∆VOC Change in Magnitude of Driver Common Mode
R = 27Ω or R = 50Ω, Figure 1
q
Output Voltage for Complementary Output States
3
V
0.2
V
VIH
Input High Voltage
DE, DI, RE
q2
V
VIL
Input Low Voltage
DE, DI, RE
q
0.8
V
IIN1
Input Current
DE, DI, RE
q
±2
µA
IIN2
Input Current (A, B)
DE = 0, VCC = 0V or 5.25V, VIN = 12V q
DE = 0, VCC = 0V or 5.25V, VIN = – 7V q
1.0
mA
– 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
45
mV
VOH
Receiver Output High Voltage
IO = – 4mA, VID = 200mV
q 3.5
V
VOL
Receiver Output Low Voltage
IO = 4mA, VID = – 200mV
q
0.4
V
IOZR
Three-State (High Impedance) Output
Current at Receiver
VCC = Max, 0.4V ≤ VO ≤ 2.4V
q
±1
µA
RIN
Receiver Input Resistance
ICC
Supply Current
– 7V ≤ VCM ≤ 12V
No Load, Output Enabled
No Load, Output Disabled
q 12
kΩ
q
300
500
µA
q
80
120
µA
ISHDN
IOSD1
IOSD2
IOSR
Supply Current in Shutdown Mode
Driver Short-Circuit Current, VOUT = HIGH
Driver Short-Circuit Current, VOUT = LOW
Receiver Short-Circuit Current
DE = 0, RE = VCC
– 7V ≤ VO ≤ 12V
– 7V ≤ VO ≤ 12V
0V ≤ VO ≤ VCC
q 35
q 35
q7
1
10
µA
250
mA
250
mA
85
mA
1481fa
2
Share Link: 