參數(shù)資料
型號(hào)： LTC487IN
廠商： LINEAR TECHNOLOGY CORP
元件分類： 通用總線功能
英文描述： Quad Low Power RS485 Driver
中文描述： QUAD LINE TRANSCEIVER, PDIP16
封裝： PLASTIC, DIP-16
文件頁(yè)數(shù)： 2/8頁(yè)
文件大?。?/td> 225K
代理商： LTC487IN
LTC487
2
ELECTRICAL C
V
CC
= 5V
±
5%, 0
°
C
≤
T
A
≤
70
°
C (Commercial), –40
°
C
≤
T
A
≤
85
°
C (Industrial) (Note 2, 3)
HARA TERISTICS
C
D
A
(Note 1)
Supply Voltage (V
CC
) ............................................... 12V
Control Input Voltages....................–0.5V to V
CC
+ 0.5V
Driver Input Voltages......................–0.5V to V
CC
+ 0.5V
Driver Output Voltages ..........................................
±
14V
Control Input Currents........................................
±
25mA
Driver Input Currents..........................................
±
25mA
Operating Temperature Range
Commercial ............................................ 0
°
C to 70
°
C
Industrial ........................................... –40
°
C to 85
°
C
Storage Temperature Range................. –65
°
C to 150
°
C
Lead Temperature (Soldering, 10 sec.).................300
°
C
U
G
W
A
W
U
W
A
R
BSOLUTE
XI
TI
S
U
PACKAGE/ORDER U
ORDER PART
NUMBER
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
DI1
DO1A
DO1B
EN12
DO2B
DO2A
DI2
GND
DI3
DO3A
DO3B
EN34
DO4B
DO4A
DI4
V
N PACKAGE
16-LEAD PLASTIC DIP
T
JMAX
= 125
°
C,
θ
JA
= 70
°
C/W (N)
T
JMAX
= 150
°
C,
θ
JA
= 95
°
C/W (S)
TOP VIEW
CC
S PACKAGE
16-LEAD PLASTIC SOL
LTC487CN
LTC487CS
LTC487IN
LTC487IS
pins are negative. All voltages are referenced to device GND unless
otherwise specified.
Note 3:
All typicals are given for V
CC
= 5V and Temperature = 25
°
C.
Note 1:
Absolute maximum ratings are those beyond which the safety of
the device cannot be guaranteed.
Note 2:
All currents into device pins are positive; all currents out of device
SYMBOL
t
PLH
t
PHL
t
SKEW
t
r,
t
f
t
ZH
t
ZL
t
LZ
t
HZ
PARAMETER
Driver Input to Output
Driver Input to Output
Driver Output to Output
Driver Rise or Fall Time
Driver Enable to Output High
Driver Enable to Output Low
Driver Disable Time from Low
Driver Disable Time from High
CONDITIONS
R
DIFF
= 54
,
C
L1
= C
L2
= 100pF
(Figures 1, 4)
MIN
10
10
TYP
30
30
5
20
35
35
35
35
MAX
50
50
15
25
70
70
70
70
UNITS
ns
ns
ns
ns
ns
ns
ns
ns
5
C
L
= 100pF (Figures 2, 5) S2 Closed
C
L
= 100pF (Figures 2, 5) S1 Closed
C
L
= 15pF (Figures 2, 5) S1 Closed
C
L
= 15pF (Figures 2, 5) S2 Closed
V
CC
= 5V
±
5%, 0
°
C
≤
T
A
≤
70
°
C (Note 2, 3)
S
U
G C
HARA TERISTICS
WITCHI
SYMBOL
V
OD1
V
OD2
PARAMETER
Differential Driver Output Voltage (Unloaded)
Differential Driver Output Voltage (With Load)
CONDITIONS
I
O
= 0
R = 50
; (RS422)
R = 27
; (RS485) (Figure 3)
R = 27
or R = 50
(Figure 3)
MIN
TYP
MAX
5
UNITS
V
V
V
V
2
1.5
5
V
OD
Change in Magnitude of Driver Differential
Output Voltage for Complementary Output States
Driver Common-Mode Output Voltage
Change in Magnitude of Driver Common-Mode
Output Voltage for Complementary Output States
Input High Voltage
Input Low Voltage
Input Current
Supply Current
0.2
V
OC
V
OC
3
V
V
0.2
V
IH
V
IL
I
IN1
I
CC
DI, EN12, EN34
2.0
V
0.8
±
2
200
200
250
250
±
200
V
μ
A
μ
A
μ
A
mA
mA
μ
A
No Load Output Enabled
Output Disabled
V
O
= –7V
V
O
= 12V
V
O
= –7V to 12V
110
110
100
100
±
10
I
OSD1
I
OSD2
I
OZ
Driver Short-Circuit Current, V
OUT
= High
Driver Short-Circuit Current, V
OUT
= Low
High Impedance State Output Current
Consult factory for Military grade parts.
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