參數(shù)資料
型號(hào)： LT1280A
廠商： Linear Technology Corporation
元件分類： 外設(shè)及接口
英文描述： Single Supply RS232C Line Driver/Receiver(?????μ?o?RS232C ?o?????????¨???2???2??????)
中文描述： 單電源RS232C接口線路驅(qū)動(dòng)器/接收器（單電源RS232C接口線收發(fā)器（2發(fā)2收））
文件頁(yè)數(shù)： 2/8頁(yè)
文件大小： 222K
代理商： LT1280A
2
LT1280A/LT1281A
A
Supply Voltage (V
CC
) ................................................ 6V
V
+
........................................................................ 13.2V
V
–
...................................................................... –13.2V
Input Voltage
Driver ...........................................................V
–
to V
+
Receiver ............................................... –30V to 30V
ON/OFF................................................. –0.3V to 12V
Output Voltage
Driver ...................................... V
+
– 30V to V
–
+ 30V
Receiver .................................... –0.3V to V
CC
+ 0.3V
PACKAGE/ORDER IU
U
G
W
A
W
U
W
A
R
BSOLUTE
XI
TI
S
Short-Circuit Duration
V
+
................................................................... 30 sec
V
–
................................................................... 30 sec
Driver Output.............................................. Indefinite
Receiver Output.......................................... Indefinite
Operating Temperature Range
LT1280AC/LT1281AC............................. 0
°
C to 70
°
C
LT1280AI/LT1281AI .......................... –40
°
C to 85
°
C
Storage Temperature Range................ –65
°
C to 150
°
C
Lead Temperature (Soldering, 10 sec)................. 300
°
C
U
ORDER PART
NUMBER
ORDER PART
NUMBER
(Note 2)
ELECTRICAL C
HARA TERISTICS
Consult factory for Military grade parts.
1
2
3
4
5
6
7
8
9
TOP VIEW
18
17
16
15
14
13
12
11
10
NC
C1
+
V
+
C1
–
C2
+
C2
–
V
–
TR2 OUT
REC2 IN
N PACKAGE 18-LEAD P
SW PACKAGE
18-LEAD P
T
JMAX
= 125
°
C,
θ
JA
= 80
°
C/W,
θ
JC
= 36
°
C/W (N)
T
JMAX
= 125
°
C,
θ
JA
= 90
°
C/W,
θ
JC
= 26
°
C/W (SW)
ON/OFF
V
CC
GND
TR1 OUT
REC1 IN
REC1 OUT
TR1 IN
TR2 IN
REC2 OUT
LT1280ACN
LT1280AIN
LT1280ACSW
LT1280AISW
1
2
3
4
5
6
7
8
TOP VIEW
16
15
14
13
12
11
10
9
C1
+
V
+
C1
–
C2
+
C2
–
V
–
TR2 OUT
REC2 IN
V
CC
GND
TR1 OUT
REC1 IN
REC1 OUT
TR1 IN
TR2 IN
REC2 OUT
N PACKAGE 16-LEAD P
SW PACKAGE
16-LEAD PLA
T
JMAX
= 125
°
C,
θ
JA
= 90
°
C/W,
θ
JC
= 46
°
C/W (N)
T
JMAX
= 125
°
C,
θ
JA
= 95
°
C/W,
θ
JC
= 27
°
C/W (SW)
LT1281ACN
LT1281AIN
LT1281ACSW
LT1281AISW
(Note 1)
PARAMETER
Power Supply Generator
V
+
Output
V
–
Output
Supply Current (V
CC
)
CONDITIONS
MIN
TYP
MAX
UNITS
7.9
–7.0
8
V
V
(Note 3), T
A
= 25
°
C
10
14
10
mA
mA
μ
A
ms
ms
G
Supply Current When OFF (V
CC
)
Supply Rise Time
Shutdown to Turn-On
ON/OFF Pin Thresholds
Shutdown (Note 4) LT1280A Only
C1 = C2 = C3 = C4 = 0.1
μ
F
LT1280A Only
Input Low Level (Device Shutdown)
Input High Level (Device Enabled)
0V
≤
V
ON/OFF
≤
5V
G
1
0.2
0.2
1.2
1.6
G
G
0.8
V
V
2.4
80
ON/OFF Pin Current
Oscillator Frequency
Driver
Output Voltage Swing
G
–15
μ
A
kHz
130
Load = 3k to GND
Positive
Negative
G
G
5.0
7.5
–6.3
V
V
–5.0
Logic Input Voltage Level
Input Low Level (V
OUT
= High)
Input High Level (V
OUT
= Low)
G
G
1.4
1.4
0.8
V
V
2.0
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