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Электронный компонент: LT1130A

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1
LT1130A/LT1140A Series
Advanced Low Power
5V RS232 Drivers/Receivers
with Small Capacitors
s
ESD Protection over
10kV
(
15kV IEC-1000-4-2 for LT1133A, LT1137A
and LT1141A)
s
Uses Small Capacitors: 0.1
F, 0.2
F
s
1
A Supply Current in SHUTDOWN
s
120kBaud Operation for R
L
= 3k, C
L
= 2500pF
s
250kBaud Operation for R
L
= 3k, C
L
= 1000pF
s
CMOS Comparable Low Power
s
Easy PC Layout: Flowthrough Architecture
s
Rugged Bipolar Design: Absolutely No Latchup
s
Outputs Assume a High Impedance State When Off
or Powered Down
s
Improved Protection: RS232 I/O Lines Can Be Forced
to
30V Without Damage
s
Output Overvoltage Does Not Force Current Back
into Supplies
s
Available in SO and SSOP Packages
The LT
1130A/LT1140A series of RS232 drivers/receiv-
ers features special bipolar construction techniques which
protect the drivers and receivers beyond the fault condi-
tions stipulated for RS232. Driver outputs and receiver
inputs can be shorted to
30V without damaging the
device or the power supply generator. In addition, the
RS232 I/O pins are resilient to multiple
10kV ESD strikes.
An advanced driver output stage operates up to 250kbaud
while driving heavy capacitive loads. Supply current is
typically 12mA, competitive with CMOS devices.
Several members of the series include flexible operating
mode controls. The DRIVER DISABLE pin disables the
drivers and the charge pump, the ON/OFF pin shuts down
all circuitry. While shut down, the drivers and receivers
assume high impedance output states.
, LTC and LT are registered trademarks of Linear Technology Corporation.
LT1136A 4-Driver/5-Receiver RS232 Transceiver w/Shutdown
LT1137A 3-Driver/5-Receiver RS232 Transceiver w/Shutdown
LT1138A 5-Driver/3-Receiver RS232 Transceiver w/Shutdown
LT1139A 4-Driver/4-Receiver RS232 Transceiver w/Shutdown
LT1140A 5-Driver/3-Receiver RS232 Transceiver w/o Charge Pump
LT1141A 3-Driver/5-Receiver RS232 Transceiver w/o Charge Pump
LT1130A 5-Driver/5-Receiver RS232 Transceiver
LT1131A 5-Driver/4-Receiver RS232 Transceiver w/Shutdown
LT1132A 5-Driver/3-Receiver RS232 Transceiver
LT1133A 3-Driver/5-Receiver RS232 Transceiver
LT1134A 4-Driver/4-Receiver RS232 Transceiver
LT1135A 5-Driver/3-Receiver RS232 Transceiver w/o Charge Pump
R
LT1130A TA02
RECEIVER
OUTPUT
C
L
= 50pF
DRIVER
OUTPUT
R
L
= 3k
C
L
= 2500pF
INPUT
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28
27
26
25
24
23
22
21
20
19
18
17
16
15
5V V
CC
DRIVER OUT
RX IN
DRIVER OUT
RX IN
RX IN
RX IN
DRIVER OUT
RX IN
ON/OFF = 5V
DRIVER IN
RX OUT
DRIVER IN
RX OUT
RX OUT
RX OUT
DRIVER IN
RX OUT
V
+
0.1
F
0.1
F
2
0.1
F
2
0.1
F
GND
DRIVER DISABLE
TO LINE
TO LOGIC
V
1130A TA01
LT1137A
Basic Operation
Output Waveforms
FEATURES
DESCRIPTIO
U
TYPICAL APPLICATIO
U
background image
2
LT1130A/LT1140A Series
A
U
G
W
A
W
U
W
A
R
BSOLUTE
XI
TI
S
(Note 1)
Supply Voltage (V
CC
) ................................................ 6V
V
+
........................................................................ 13.2V
V
(Note 7) ....................................................... 13.2V
Input Voltage
Driver ........................................................... V
to V
+
Receiver ............................................... 30V to 30V
On/Off Pin ............................................. 0.3V to 12V
Driver Disable Pin ................... 0.3V to (V
CC
+ 0.3V)
Output Voltage
Driver .................................................... 30V to 30V
Receiver ................................. 0.3V to (V
CC
+ 0.3V)
Short-Circuit Duration
V
+
................................................................... 30 sec
V
................................................................... 30 sec
Driver Output .............................................. Indefinite
Receiver Output .......................................... Indefinite
Operating Temperature Range
LT113XAC/LT114XAC ............................ 0
C to 70
C
LT113XAI/LT114XAI ............................. 40
to 85
C
Storage Temperature Range ................ 65
C to 150
C
Lead Temperature (Soldering, 10 sec)................. 300
C
ORDER PART
NUMBER
ORDER PART
NUMBER
PRODUCT SELECTIO TABLE
U
Part Number
Power Supply Voltages*
Shutdown
Driver Disable
Drivers
Receivers
External Components
LT1130A
5
No
No
5
5
4 Capacitors
LT1131A
5
Yes
Yes
5
4
4 Capacitors
LT1132A
5
No
No
5
3
4 Capacitors
LT1133A**
5
No
No
3
5
4 Capacitors
LT1134A
5
No
No
4
4
4 Capacitors
LT1135A
5, 12, 12
No
No
5
3
None
LT1136A
5
Yes
Yes
4
5
4 Capacitors
LT1137A**
5
Yes
Yes
3
5
4 Capacitors
LT1138A
5
Yes
Yes
5
3
4 Capacitors
LT1139A
5, 12
Yes
No
4
4
2 Capacitors
LT1140A
5, 12, 12
Yes
Yes
5
3
None
LT1141A**
5, 12, 12
Yes
Yes
3
5
None
*The LT1130A, LT1131A, LT1132A, LT1134A, LT1136A, LT1137A and LT1138A can operate with 5V and 12V supplies and two external capacitors.
**Meets
15kV ESD air gap discharge and
8kV contact methods per IEC-1000-4-2.
W
U
U
PACKAGE/ORDER I FOR ATIO
1
2
3
4
5
6
7
8
9
10
11
12
13
14
TOP VIEW
28
27
26
25
24
23
22
21
20
19
18
17
16
15
V
+
5V V
CC
C1
+
C1
DRIVER OUT
RX IN
DRIVER OUT
RX IN
DRIVER OUT
RX IN
DRIVER OUT
RX IN
DRIVER OUT
RX IN
V
C2
C2
+
DRIVER IN
RX OUT
DRIVER IN
RX OUT
DRIVER IN
RX OUT
DRIVER IN
RX OUT
DRIVER IN
RX OUT
GND
SW PACKAGE
28-LEAD PLASTIC SO WIDE
NW PACKAGE
28-LEAD PDIP
LT1130A
5-DRIVER/5-RECEIVER
LT1130ACNW
LT1130ACSW
LT1130AISW
T
JMAX
= 150
C,
JA
= 56
C/W (NW)
T
JMAX
= 150
C,
JA
= 68
C/W (SW)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
TOP VIEW
28
27
26
25
24
23
22
21
20
19
18
17
16
15
V
C2
C2
+
DRIVER IN
RX OUT
DRIVER IN
RX OUT
DRIVER IN
RX OUT
DRIVER IN
RX OUT
DRIVER IN
GND
DRIVER DISABLE
SW PACKAGE
28-LEAD PLASTIC SO WIDE
NW PACKAGE
28-LEAD PDIP
LT1131A
V
+
5V V
CC
C1
+
C1
DRIVER OUT
RX IN
DRIVER OUT
RX IN
DRIVER OUT
RX IN
DRIVER OUT
RX IN
DRIVER OUT
ON/OFF
T
JMAX
= 150
C,
JA
= 56
C/W (NW)
T
JMAX
= 150
C,
JA
= 68
C/W (SW)
5-DRIVER/4-RECEIVER WITH SHUTDOWN
LT1131ACNW
LT1131ACSW
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3
LT1130A/LT1140A Series
W
U
U
PACKAGE/ORDER I FOR ATIO
ORDER PART
NUMBER
5-DRIVER/3-RECEIVER
WITHOUT CHARGE PUMP
4-DRIVER/4-RECEIVER
ORDER PART
NUMBER
ORDER PART
NUMBER
ORDER PART
NUMBER
ORDER PART
NUMBER
3-DRIVER/5-RECEIVER
T
JMAX
= 150
C,
JA
= 58
C/W (N)
T
JMAX
= 150
C,
JA
= 80
C/W (SW)
T
JMAX
= 150
C,
JA
= 58
C/W (N)
T
JMAX
= 150
C,
JA
= 80
C/W (SW)
T
JMAX
= 150
C,
JA
= 79
C/W (N)
T
JMAX
= 150
C,
JA
= 85
C/W (SW)
T
JMAX
= 150
C,
JA
= 56
C/W (NW)
T
JMAX
= 150
C,
JA
= 68
C/W (SW)
T
JMAX
= 150
C,
JA
= 96
C/W (G)
T
JMAX
= 150
C,
JA
= 56
C/W (NW)
T
JMAX
= 150
C,
JA
= 68
C/W (SW)
1
2
3
4
5
6
7
8
9
10
11
12
TOP VIEW
24
23
22
21
20
19
18
17
16
15
14
13
V
C2
C2
+
DRIVER IN
RX OUT
DRIVER IN
RX OUT
DRIVER IN
RX OUT
DRIVER IN
RX OUT
GND
SW PACKAGE
24-LEAD PLASTIC SO WIDE
N PACKAGE
24-LEAD PDIP
LT1134A
V
+
5V V
CC
C1
+
C1
DRIVER OUT
RX IN
DRIVER OUT
RX IN
DRIVER OUT
RX IN
DRIVER OUT
RX IN
1
2
3
4
5
6
7
8
9
10
11
12
13
14
TOP VIEW
28
27
26
25
24
23
22
21
20
19
18
17
16
15
V
C2
C2
+
DRIVER IN
RX OUT
DRIVER IN
RX OUT
DRIVER IN
RX OUT
DRIVER IN
RX OUT
RX OUT
GND
DRIVER DISABLE
SW PACKAGE
28-LEAD PLASTIC SO WIDE
NW PACKAGE
28-LEAD PDIP
LT1136A
V
+
5V V
CC
C1
+
C1
DRIVER OUT
RX IN
DRIVER OUT
RX IN
DRIVER OUT
RX IN
DRIVER OUT
RX IN
RX IN
ON/OFF
1
2
3
4
5
6
7
8
9
10
11
12
TOP VIEW
24
23
22
21
20
19
18
17
16
15
14
13
V
C2
C2
+
DRIVER IN
DRIVER IN
RX OUT
DRIVER IN
DRIVER IN
RX OUT
DRIVER IN
RX OUT
GND
SW PACKAGE
24-LEAD PLASTIC SO WIDE
N PACKAGE
24-LEAD PDIP
LT1132A
V
+
5V V
CC
C1
+
C1
DRIVER OUT
DRIVER OUT
RX IN
DRIVER OUT
DRIVER OUT
RX IN
DRIVER OUT
RX IN
LT1132ACN
LT1132ACSW
LT1132AISW
T
JMAX
= 150
C,
JA
= 58
C/W (N)
T
JMAX
= 150
C,
JA
= 80
C/W (SW)
1
2
3
4
5
6
7
8
9
10
11
12
TOP VIEW
24
23
22
21
20
19
18
17
16
15
14
13
V
C2
C2
+
DRIVER IN
RX OUT
DRIVER IN
RX OUT
RX OUT
RX OUT
DRIVER IN
RX OUT
GND
SW PACKAGE
24-LEAD PLASTIC SO WIDE
N PACKAGE
24-LEAD PDIP
LT1133A
V
+
5V V
CC
C1
+
C1
DRIVER OUT
RX IN
DRIVER OUT
RX IN
RX IN
RX IN
DRIVER OUT
RX IN
LT1133ACN
LT1133ACSW
LT1133AISW
ORDER PART
NUMBER
5-DRIVER/3-RECEIVER
1
2
3
4
5
6
7
8
9
10
TOP VIEW
20
19
18
17
16
15
14
13
12
11
12V V
DRIVER IN
DRIVER IN
RX OUT
DRIVER IN
DRIVER IN
RX OUT
DRIVER IN
RX OUT
GND
SW PACKAGE
20-LEAD PLASTIC SO WIDE
N PACKAGE
20-LEAD PDIP
12V V
+
5V V
CC
DRIVER OUT
DRIVER OUT
RX IN
DRIVER OUT
DRIVER OUT
RX IN
DRIVER OUT
RX IN
LT1135A
LT1134ACN
LT1134ACSW
LT1134AIN
LT1134AISW
LT1135ACN
LT1135ACSW
LT1137ACG
LT1137ACNW
LT1137ACSW
LT1137AIG
LT1137AINW
LT1137AISW
3-DRIVER/5-RECEIVER WITH SHUTDOWN
4-DRIVER/5-RECEIVER WITH SHUTDOWN
LT1136ACNW
LT1136ACSW
1
2
3
4
5
6
7
8
9
10
11
12
13
14
TOP VIEW
28
27
26
25
24
23
22
21
20
19
18
17
16
15
V
C2
C2
+
DRIVER IN
RX OUT
DRIVER IN
RX OUT
RX OUT
RX OUT
DRIVER IN
RX OUT
GND
DRIVER DISABLE
NC
SW PACKAGE
28-LEAD PLASTIC SO WIDE
NW PACKAGE
28-LEAD PDIP
LT1137A
V
+
5V V
CC
C1
+
C1
DRIVER OUT
RX IN
DRIVER OUT
RX IN
RX IN
RX IN
DRIVER OUT
RX IN
ON/OFF
NC
G PACKAGE
28-LEAD PLASTIC SSOP
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4
LT1130A/LT1140A Series
The
q
denotes the specifications which apply over the full operating
ELECTRICAL C
C
HARA TERISTICS
ORDER PART
NUMBER
W
U
U
PACKAGE/ORDER I FOR ATIO
5-DRIVER/3-RECEIVER WITH SHUTDOWN
T
JMAX
= 150
C,
JA
= 96
C/W (G)
T
JMAX
= 150
C,
JA
= 56
C/W (NW)
T
JMAX
= 150
C,
JA
= 68
C/W (SW)
5-DRIVER/3-RECEIVER WITH SHUTDOWN
WITHOUT CHARGE PUMP
Consult factory for Industrial and Military grade parts.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
TOP VIEW
28
27
26
25
24
23
22
21
20
19
18
17
16
15
V
C2
C2
+
DRIVER IN
DRIVER IN
RX OUT
DRIVER IN
RX OUT
DRIVER IN
RX OUT
DRIVER IN
GND
DRIVER DISABLE
NC
SW PACKAGE
28-LEAD PLASTIC SO WIDE
NW PACKAGE
28-LEAD PDIP
LT1138A
V
+
5V V
CC
C1
+
C1
DRIVER OUT
DRIVER OUT
RX IN
DRIVER OUT
RX IN
DRIVER OUT
RX IN
DRIVER OUT
ON/OFF
NC
G PACKAGE
28-LEAD PLASTIC SSOP
LT1138ACG
LT1138ACNW
LT1138ACSW
LT1138AIG
T
JMAX
= 150
C,
JA
= 58
C/W (N)
T
JMAX
= 150
C,
JA
= 80
C/W (SW)
1
2
3
4
5
6
7
8
9
10
11
12
TOP VIEW
24
23
22
21
20
19
18
17
16
15
14
13
V
C
C
+
DRIVER IN
RX OUT
DRIVER IN
RX OUT
DRIVER IN
RX OUT
DRIVER IN
RX OUT
GND
SW PACKAGE
24-LEAD PLASTIC SO WIDE
N PACKAGE
24-LEAD PDIP
LT1139A
N.C.
5V V
CC
12V INPUT
DRIVER OUT
RX IN
DRIVER OUT
RX IN
DRIVER OUT
RX IN
DRIVER OUT
RX IN
ON/OFF
LT1139ACN
LT1139ACSW
4-DRIVER/4-RECEIVER WITH SHUTDOWN
WITH 12V AND 5V SUPPLIES
ORDER PART
NUMBER
ORDER PART
NUMBER
ORDER PART
NUMBER
LT1140ACN
LT1140ACSW
T
JMAX
= 150
C,
JA
= 58
C/W (N)
T
JMAX
= 150
C,
JA
= 80
C/W (SW)
1
2
3
4
5
6
7
8
9
10
11
12
TOP VIEW
24
23
22
21
20
19
18
17
16
15
14
13
12V V
N.C.
DRIVER IN
DRIVER IN
RX OUT
DRIVER IN
DRIVER IN
RX OUT
DRIVER IN
RX OUT
GND
DRIVER DISABLE
SW PACKAGE
24-LEAD PLASTIC SO WIDE
N PACKAGE
24-LEAD PDIP
LT1140A
12V V
+
5V V
CC
N.C.
DRIVER OUT
DRIVER OUT
RX IN
DRIVER OUT
DRIVER OUT
RX IN
DRIVER OUT
RX IN
ON/OFF
3-DRIVER/5-RECEIVER WITH SHUTDOWN
WITHOUT CHARGE PUMP
1
2
3
4
5
6
7
8
9
10
11
12
TOP VIEW
24
23
22
21
20
19
18
17
16
15
14
13
12V V
N.C.
RX OUT
DRIVER IN
RX OUT
DRIVER IN
RX OUT
DRIVER IN
RX OUT
RX OUT
GND
DRIVER DISABLE
SW PACKAGE
24-LEAD PLASTIC SO WIDE
N PACKAGE
24-LEAD PDIP
LT1141A
12V V
+
5V V
CC
N.C.
RX IN
DRIVER OUT
RX IN
DRIVER OUT
RX IN
DRIVER OUT
RX IN
RX IN
ON/OFF
LT1141ACN
LT1141ACSW
T
JMAX
= 150
C,
JA
= 58
C/W (N)
T
JMAX
= 150
C,
JA
= 80
C/W (SW)
temperature range, otherwise specifications are at T
A
= 25
C. (Note 2)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Power Supply Generator
V
+
Output
8.6
V
V
Output
7.8
V
5V V
CC
Supply Current: LT1130A, LT1131A, LT1132A,
(Note 3)
q
15
25
mA
LT1133A, LT1134A, LT1136A, LT1138A
5V V
CC
Supply Current: LT1135A, LT1140A, LT1141A
(Note 3), V
+
= 12V, V
= 12V
q
8
15
mA
5V V
CC
Supply Current: LT1137A
(Note 3)
q
12
17
mA
5V V
CC
Supply Current: LT1139A
(Note 3), V
+
= 12V
q
8
15
mA
12V V
+
Supply Current: LT1135A, LT1140A, LT1141A
(Note 3), V
= 12V
q
1
4
mA
12V V
+
Supply Current: LT1139A
(Note 3)
q
6
10
mA
12V V
Supply Current: LT1135A, LT1140A, LT1141A
(Note 3) V
+
= 12V
q
2
6
mA
background image
5
LT1130A/LT1140A Series
ELECTRICAL C
C
HARA TERISTICS
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Supply Current when OFF (V
CC
)
Shutdown (Note 4)
q
1
10
A
Driver Disable
4
mA
Supply Rise Time
C1, C2, C
+
, C
= 1.0
F
2.0
ms
Shutdown to Turn-On
C
+
, C
= 0.1
F, C1, C2 = 0.2
F
0.2
ms
ON/OFF Pin Thresholds
Input Low Level (Device Shut Down)
q
1.4
0.8
V
Input High Level (Device Enabled)
q
2.4
1.4
V
ON/OFF Pin Current
0V
V
ON/OFF
5V
q
15
80
A
DRIVER DISABLE Pin Thresholds
Input Low Level (Drivers Enabled)
q
1.4
0.8
V
Input High Level (Drivers Disabled)
q
2.4
1.4
V
DRIVER DISABLE Pin Current
0V
V
DRIVER DISABLE
5V
q
10
500
A
Oscillator Frequency
130
kHz
Any Driver
Output Voltage Swing
Load = 3k to GND Positive
q
5
7.3
V
Negative
q
6.5
5
V
Logic Input Voltage Level
Input Low Level (V
OUT
= High)
q
1.4
0.8
V
Input High Level (V
OUT
= Low)
q
2
1.4
V
Logic Input Current
0.8V
V
IN
2V
q
5
20
A
Output Short-Circuit Current
V
OUT
= 0V
9
17
mA
Output Leakage Current
Shutdown V
OUT
=
30V (Note 4)
q
10
100
A
Data Rate
R
L
= 3k, C
L
= 2500pF
120
kbaud
R
L
= 3k, C
L
= 1000pF
250
kbaud
Slew Rate
R
L
= 3k, C
L
= 51pF
15
30
V/
s
R
L
= 3k, C
L
= 2500pF (Note 8)
6
V/
s
Propagation Delay
Output Transition t
HL
High to Low (Note 5)
0.6
1.3
s
Output Transition t
LH
Low to High
0.5
1.3
s
Any Receiver
Input Voltage Thresholds
Input Low Threshold (V
OUT
= High)
q
0.8
1.3
V
Input High Threshold (V
OUT
= Low)
q
1.7
2.4
V
Hysteresis
q
0.1
0.4
1
V
Input Resistance
10V < V
IN
< 10V
3
5
7
k
Output Voltage
Output Low, I
OUT
= 1.6mA
q
0.2
0.4
V
Output High, I
OUT
= 160
A (V
CC
= 5V)
q
3.5
4.2
V
Output Leakage Current
Shutdown (Note 4) 0
V
OUT
V
CC
q
1
10
A
Output Short-Circuit Current
Sinking Current, V
OUT
= V
CC
20
10
mA
Sourcing Current, V
OUT
= 0V
10
20
mA
Propagation Delay
Output Transition t
HL
High to Low (Note 6)
250
600
ns
Output Transition t
LH
Low to High
350
600
ns
Note 1: Absolute Maximum Ratings are those values beyond which the life
of the device may be impaired.
Note 2: Testing done at V
CC
= 5V and V
ON/OFF
= 3V.
Note 3: Supply current is measured with driver and receiver outputs
unloaded and the driver inputs tied high.
Note 4: Supply current and driver leakage current measurements in shut-
down are performed with V
ON/OFF
= 0.1V. Supply current measurements
using DRIVER DISABLE are performed with V
DRIVER DISABLE
= 3V. For
LT1135, LT1139, LT1140 and LT1141 with 12V supplies, V
OUT
leakage is
200
A for V
OUT
forced to
25V.
Note 5: For driver delay measurements, R
L
= 3k and C
L
= 51pF. Trigger
points are set between the driver's input logic threshold and the output
transition to the zero crossing (t
HL
= 1.4V to 0V and t
LH
= 1.4V to 0V).
Note 6: For receiver delay measurements, C
L
= 51pF. Trigger points
are set between the receiver's input logic threshold and the output
transition to standard TTL/CMOS logic threshold (t
HL
= 1.3V to 2.4V
and t
LH
= 1.7V to 0.8V).
Note 7: For LT1133A/LT1137A, absolute maximum externally applied
V
= 6.5V. Internal charge pump will drive this pin to a higher nega-
tive voltage.
Note 8: For LT1137A, 4V/
s minimum.
The
q
denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25
C. (Note 2)