LT1132A [Linear]
Advanced Low Power 5V RS232 Drivers/Receivers with Small Capacitors; 先进的低功耗5V RS232驱动器/接收器，小电容
| 型号： | LT1132A |
| 厂家： | 
Linear |
| 描述： | Advanced Low Power 5V RS232 Drivers/Receivers with Small Capacitors |
| 文件： | 总12页 (文件大小：200K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
LT1130A/LT1140A Series
Advanced Low Power
5V RS232 Drivers/Receivers
with Small Capacitors
U
DESCRIPTIO
FEATURES
The LT®1130A/LT1140A series of RS232 drivers/receiv-
ersfeaturesspecialbipolarconstructiontechniqueswhich
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
RS232I/Opinsareresilienttomultiple±10kVESDstrikes.
An advanced driver output stage operates up to 250kbaud
while driving heavy capacitive loads. Supply current is
typically 12mA, competitive with CMOS devices.
■
ESD Protection over ±10kV
(±15kV IEC-1000-4-2 for LT1133A, LT1137A
and LT1141A)
■
Uses Small Capacitors: 0.1µF, 0.2µF
■
1µA Supply Current in SHUTDOWN
■
120kBaud Operation for RL = 3k, CL = 2500pF
■
250kBaud Operation for RL = 3k, CL = 1000pF
■
CMOS Comparable Low Power
■
Easy PC Layout: Flowthrough Architecture
■
Rugged Bipolar Design: Absolutely No Latchup
■
Outputs Assume a High Impedance State When Off
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.
or Powered Down
■
Improved Protection: RS232 I/O Lines Can Be Forced
to ±30V Without Damage
■
Output Overvoltage Does Not Force Current Back
into Supplies
Available in SO and SSOP Packages
, LTC and LT are registered trademarks of Linear Technology Corporation.
■
U
TYPICAL APPLICATIO
Basic Operation
Output Waveforms
+
–
1
2
28
27
26
25
24
23
22
21
20
19
18
17
16
15
V
V
RECEIVER
OUTPUT
CL = 50pF
0.1µF
0.1µF
5V V
0.1µF
× 2
CC
3
LT1137A
0.1µF
× 2
4
DRIVER IN
RX OUT
DRIVER IN
RX OUT
RX OUT
RX OUT
DRIVER IN
RX OUT
GND
5
DRIVER OUT
RX IN
6
DRIVER
R
OUTPUT
7
DRIVER OUT
RX IN
RL = 3k
CL = 2500pF
TO LOGIC
8
TO LINE
9
RX IN
10
11
12
13
14
RX IN
DRIVER OUT
RX IN
INPUT
ON/OFF = 5V
DRIVER DISABLE
LT1130A • TA02
1130A • TA01
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
LT1140A5-Driver/3-ReceiverRS232Transceiverw/oChargePump
LT1141A3-Driver/5-ReceiverRS232Transceiverw/oChargePump
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
LT1135A5-Driver/3-ReceiverRS232Transceiverw/oChargePump
1
LT1130A/LT1140A Series
W W W
U
ABSOLUTE AXI U RATI GS (Note 1)
Short-Circuit Duration
Supply Voltage (VCC) ................................................ 6V
V+ ........................................................................ 13.2V
V– (Note 7) ....................................................... –13.2V
Input Voltage
V+ ................................................................... 30 sec
V– ................................................................... 30 sec
Driver Output.............................................. Indefinite
Receiver Output.......................................... Indefinite
Operating Temperature Range
Driver ........................................................... V– to V+
Receiver ............................................... – 30V to 30V
On/Off Pin............................................. –0.3V to 12V
Driver Disable Pin................... –0.3V to (VCC + 0.3V)
Output Voltage
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
Driver .................................................... – 30V to 30V
Receiver ................................. – 0.3V to (VCC + 0.3V)
U
PRODUCT SELECTIO TABLE
Part Number
LT1130A
Power Supply Voltages*
Shutdown
No
Driver Disable
Drivers
Receivers
External Components
4 Capacitors
4 Capacitors
4 Capacitors
4 Capacitors
4 Capacitors
None
5
No
Yes
No
5
5
5
3
4
5
4
3
5
4
5
3
5
4
3
5
4
3
5
5
3
4
3
5
LT1131A
5
Yes
No
LT1132A
5
LT1133A**
LT1134A
5
No
No
5
No
No
LT1135A
5, 12, –12
No
No
LT1136A
5
5
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
4 Capacitors
4 Capacitors
4 Capacitors
2 Capacitors
None
LT1137A**
LT1138A
5
LT1139A
5, 12
LT1140A
5, 12, –12
5, 12, –12
Yes
Yes
LT1141A**
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
/O
PACKAGE RDER I FOR ATIO
5-DRIVER/5-RECEIVER
5-DRIVER/4-RECEIVER WITH SHUTDOWN
ORDER PART
NUMBER
ORDER PART
NUMBER
TOP VIEW
TOP VIEW
+
–
+
–
V
1
2
3
4
5
6
7
8
9
28 V
V
1
2
3
4
5
6
7
8
9
28 V
–
+
–
+
5V V
LT1131A
27 C2
26 C2
5V V
LT1130A
27 C2
26 C2
CC
+
CC
+
C1
C1
LT1131ACNW
LT1131ACSW
LT1130ACNW
LT1130ACSW
LT1130AISW
–
–
C1
25 DRIVER IN
24 RX OUT
C1
25 DRIVER IN
24 RX OUT
23 DRIVER IN
22 RX OUT
21 DRIVER IN
20 RX OUT
19 DRIVER IN
18 RX OUT
17 DRIVER IN
16 RX OUT
15 GND
DRIVER OUT
RX IN
DRIVER OUT
RX IN
23 DRIVER IN
22 RX OUT
DRIVER OUT
RX IN
DRIVER OUT
RX IN
21 DRIVER IN
20 RX OUT
DRIVER OUT
DRIVER OUT
RX IN 10
DRIVER OUT 11
RX IN 12
19 DRIVER IN
18 RX OUT
RX IN 10
DRIVER OUT 11
RX IN 12
17 DRIVER IN
16 GND
DRIVER OUT 13
ON/OFF 14
DRIVER OUT 13
RX IN 14
15 DRIVER DISABLE
NW PACKAGE
SW PACKAGE
NW PACKAGE
28-LEAD PDIP
SW PACKAGE
28-LEAD PLASTIC SO WIDE
28-LEAD PDIP 28-LEAD PLASTIC SO WIDE
TJMAX = 150°C, θJA = 56°C/W (NW)
TJMAX = 150°C, θJA = 68°C/W (SW)
TJMAX = 150°C, θJA = 56°C/W (NW)
TJMAX = 150°C, θJA = 68°C/W (SW)
2
LT1130A/LT1140A Series
W
U
/O
PACKAGE RDER I FOR ATIO
5-DRIVER/3-RECEIVER
3-DRIVER/5-RECEIVER
ORDER PART
NUMBER
ORDER PART
NUMBER
TOP VIEW
TOP VIEW
+
–
+
–
V
1
2
3
4
5
6
7
8
9
24 V
V
1
2
3
4
5
6
7
8
9
24 V
–
+
–
+
LT1133ACN
LT1133ACSW
LT1133AISW
LT1132ACN
LT1132ACSW
LT1132AISW
5V V
LT1132A
23 C2
22 C2
CC
+
5V V
LT1133A
23 C2
22 C2
CC
+
C1
C1
–
–
C1
21 DRIVER IN
20 DRIVER IN
19 RX OUT
C1
21 DRIVER IN
20 RX OUT
19 DRIVER IN
18 RX OUT
17 RX OUT
16 RX OUT
15 DRIVER IN
14 RX OUT
13 GND
DRIVER OUT
DRIVER OUT
RX IN
DRIVER OUT
RX IN
18 DRIVER IN
17 DRIVER IN
16 RX OUT
DRIVER OUT
RX IN
DRIVER OUT
DRIVER OUT
RX IN
RX IN 10
DRIVER OUT 11
RX IN 12
15 DRIVER IN
14 RX OUT
RX IN 10
DRIVER OUT 11
RX IN 12
13 GND
N PACKAGE
SW PACKAGE
N PACKAGE
SW PACKAGE
24-LEAD PDIP 24-LEAD PLASTIC SO WIDE
24-LEAD PDIP 24-LEAD PLASTIC SO WIDE
TJMAX = 150°C, θJA = 58°C/W (N)
TJMAX = 150°C, θJA = 80°C/W (SW)
TJMAX = 150°C, θJA = 58°C/W (N)
TJMAX = 150°C, θJA = 80°C/W (SW)
4-DRIVER/4-RECEIVER
5-DRIVER/3-RECEIVER
WITHOUT CHARGE PUMP
ORDER PART
NUMBER
ORDER PART
NUMBER
TOP VIEW
+
–
V
1
2
3
4
5
6
7
8
9
24 V
TOP VIEW
–
+
LT1135ACN
LT1135ACSW
5V V
LT1134A
23 C2
22 C2
LT1134ACN
LT1134ACSW
LT1134AIN
CC
+
+
–
12V V
5V V
1
2
3
4
5
6
7
8
9
20 –12V V
LT1135A
C1
19 DRIVER IN
18 DRIVER IN
17 RX OUT
–
CC
C1
21 DRIVER IN
20 RX OUT
19 DRIVER IN
18 RX OUT
17 DRIVER IN
16 RX OUT
15 DRIVER IN
14 RX OUT
13 GND
DRIVER OUT
DRIVER OUT
RX IN
DRIVER OUT
RX IN
16 DRIVER IN
15 DRIVER IN
14 RX OUT
LT1134AISW
DRIVER OUT
RX IN
DRIVER OUT
DRIVER OUT
RX IN
DRIVER OUT
13 DRIVER IN
12 RX OUT
RX IN 10
DRIVER OUT 11
RX IN 12
DRIVER OUT
RX IN 10
11 GND
N PACKAGE
SW PACKAGE
N PACKAGE
SW PACKAGE
20-LEAD PDIP 20-LEAD PLASTIC SO WIDE
24-LEAD PDIP 24-LEAD PLASTIC SO WIDE
TJMAX = 150°C, θJA = 58°C/W (N)
TJMAX = 150°C, θJA = 80°C/W (SW)
TJMAX = 150°C, θJA = 79°C/W (N)
TJMAX = 150°C, θJA = 85°C/W (SW)
4-DRIVER/5-RECEIVER WITH SHUTDOWN
3-DRIVER/5-RECEIVER WITH SHUTDOWN
ORDER PART
NUMBER
ORDER PART
NUMBER
TOP VIEW
TOP VIEW
+
–
V
1
2
3
4
5
6
7
8
9
28 V
+
–
V
1
2
3
4
5
6
7
8
9
28 V
–
+
5V V
LT1137A
27 C2
26 C2
–
+
CC
+
5V V
LT1136A
27 C2
26 C2
CC
+
C1
LT1137ACG
LT1137ACNW
LT1137ACSW
LT1137AIG
LT1137AINW
LT1137AISW
LT1136ACNW
LT1136ACSW
C1
–
C1
25 DRIVER IN
24 RX OUT
23 DRIVER IN
22 RX OUT
21 RX OUT
20 RX OUT
19 DRIVER IN
18 RX OUT
17 GND
–
C1
25 DRIVER IN
24 RX OUT
DRIVER OUT
RX IN
DRIVER OUT
RX IN
23 DRIVER IN
22 RX OUT
DRIVER OUT
RX IN
DRIVER OUT
RX IN
21 DRIVER IN
20 RX OUT
RX IN
DRIVER OUT
RX IN 10
DRIVER OUT 11
RX IN 12
RX IN 10
DRIVER OUT 11
RX IN 12
19 DRIVER IN
18 RX OUT
17 RX OUT
ON/OFF 13
NC 14
16 DRIVER DISABLE
15 NC
RX IN 13
16 GND
ON/OFF 14
15 DRIVER DISABLE
G PACKAGE
NW PACKAGE
SW PACKAGE
NW PACKAGE
SW PACKAGE
28-LEAD PLASTIC SSOP 28-LEAD PDIP 28-LEAD PLASTIC SO WIDE
28-LEAD PDIP 28-LEAD PLASTIC SO WIDE
T
JMAX = 150°C, θJA = 96°C/W (G)
TJMAX = 150°C, θJA = 56°C/W (NW)
TJMAX = 150°C, θJA = 68°C/W (SW)
TJMAX = 150°C, θJA = 56°C/W (NW)
TJMAX = 150°C, θJA = 68°C/W (SW)
3
LT1130A/LT1140A Series
W
U
/O
PACKAGE RDER I FOR ATIO
5-DRIVER/3-RECEIVER WITH SHUTDOWN
4-DRIVER/4-RECEIVER WITH SHUTDOWN
ORDER PART
NUMBER
ORDER PART
NUMBER
TOP VIEW
WITH 12V AND 5V SUPPLIES
+
–
V
1
2
3
4
5
6
7
8
9
28 V
TOP VIEW
–
+
5V V
LT1138A
27 C2
26 C2
CC
+
–
N.C.
1
2
3
4
5
6
7
8
9
24
23
22
V
C
C
C1
–
+
5V V
LT1139A
–
LT1138ACG
LT1138ACNW
LT1138ACSW
LT1138AIG
LT1139ACN
LT1139ACSW
CC
C1
25 DRIVER IN
24 DRIVER IN
23 RX OUT
12V INPUT
DRIVER OUT
DRIVER OUT
RX IN
DRIVER OUT
RX IN
21 DRIVER IN
20 RX OUT
19 DRIVER IN
18 RX OUT
17 DRIVER IN
16 RX OUT
15 DRIVER IN
14 RX OUT
13 GND
22 DRIVER IN
21 RX OUT
DRIVER OUT
RX IN
DRIVER OUT
RX IN
20 DRIVER IN
19 RX OUT
DRIVER OUT
RX IN
DRIVER OUT 10
RX IN 11
18 DRIVER IN
17 GND
DRIVER OUT 10
RX IN 11
DRIVER OUT 12
ON/OFF 13
NC 14
16 DRIVER DISABLE
15 NC
ON/OFF 12
N PACKAGE
SW PACKAGE
G PACKAGE
NW PACKAGE
SW PACKAGE
24-LEAD PDIP 24-LEAD PLASTIC SO WIDE
28-LEAD PLASTIC SSOP 28-LEAD PDIP 28-LEAD PLASTIC SO WIDE
TJMAX = 150°C, θJA = 96°C/W (G)
TJMAX = 150°C, θJA = 58°C/W (N)
TJMAX = 150°C, θJA = 80°C/W (SW)
T
JMAX = 150°C, θJA = 56°C/W (NW)
TJMAX = 150°C, θJA = 68°C/W (SW)
3-DRIVER/5-RECEIVER WITH SHUTDOWN
5-DRIVER/3-RECEIVER WITH SHUTDOWN
ORDER PART
NUMBER
ORDER PART
NUMBER
WITHOUT CHARGE PUMP
WITHOUT CHARGE PUMP
TOP VIEW
TOP VIEW
+
–
+
–
12V V
1
2
3
4
5
6
7
8
9
24 –12V V
23 N.C.
12V V
1
2
3
4
5
6
7
8
9
24 –12V V
23 N.C.
5V V
LT1140A
5V V
LT1141A
CC
CC
N.C.
DRIVER OUT
DRIVER OUT
RX IN
22 DRIVER IN
21 DRIVER IN
20 RX OUT
N.C.
RX IN
22 RX OUT
LT1141ACN
LT1141ACSW
LT1140ACN
LT1140ACSW
21 DRIVER IN
20 RX OUT
DRIVER OUT
RX IN
19 DRIVER IN
18 DRIVER IN
17 RX OUT
19 DRIVER IN
18 RX OUT
DRIVER OUT
DRIVER OUT
RX IN
DRIVER OUT
RX IN
17 DRIVER IN
16 RX OUT
16 DRIVER IN
15 RX OUT
DRIVER OUT
DRIVER OUT 10
RX IN 11
RX IN 10
RX IN 11
15 RX OUT
14 GND
14 GND
ON/OFF 12
13 DRIVER DISABLE
ON/OFF 12
13 DRIVER DISABLE
N PACKAGE
SW PACKAGE
N PACKAGE
SW PACKAGE
24-LEAD PDIP 24-LEAD PLASTIC SO WIDE
24-LEAD PDIP 24-LEAD PLASTIC SO WIDE
TJMAX = 150°C, θJA = 58°C/W (N)
TJMAX = 150°C, θJA = 80°C/W (SW)
TJMAX = 150°C, θJA = 58°C/W (N)
TJMAX = 150°C, θJA = 80°C/W (SW)
Consult factory for Industrial and Military grade parts.
ELECTRICAL CHARACTERISTICS The ● denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. (Note 2)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Power Supply Generator
+
V
V
Output
Output
8.6
–7.8
15
V
V
–
5V V Supply Current: LT1130A, LT1131A, LT1132A,
(Note 3)
●
25
mA
CC
LT1133A, LT1134A, LT1136A, LT1138A
+
–
5V V Supply Current: LT1135A, LT1140A, LT1141A
(Note 3), V = 12V, V = –12V
(Note 3)
●
●
●
●
●
●
8
12
8
15
17
15
4
mA
mA
mA
mA
mA
mA
CC
5V V Supply Current: LT1137A
CC
+
5V V Supply Current: LT1139A
(Note 3), V = 12V
CC
+
–
12V V Supply Current: LT1135A, LT1140A, LT1141A
(Note 3), V = –12V
1
+
12V V Supply Current: LT1139A
(Note 3)
6
10
6
–
+
–12V V Supply Current: LT1135A, LT1140A, LT1141A
(Note 3) V = 12V
2
4
LT1130A/LT1140A Series
ELECTRICAL CHARACTERISTICS The ● denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. (Note 2)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Supply Current when OFF (V
)
Shutdown (Note 4)
Driver Disable
●
1
4
10
µA
mA
CC
+
–
Supply Rise Time
Shutdown to Turn-On
C1, C2, C , C = 1.0µF
2.0
0.2
ms
ms
+
–
C , C = 0.1µF, C1, C2 = 0.2µF
ON/OFF Pin Thresholds
Input Low Level (Device Shut Down)
Input High Level (Device Enabled)
●
●
1.4
1.4
0.8
V
V
2.4
ON/OFF Pin Current
0V ≤ V
≤ 5V
●
–15
80
µA
ON/OFF
DRIVER DISABLE Pin Thresholds
Input Low Level (Drivers Enabled)
Input High Level (Drivers Disabled)
●
●
1.4
1.4
0.8
V
V
2.4
DRIVER DISABLE Pin Current
Oscillator Frequency
Any Driver
0V ≤ V
≤ 5V
●
–10
500
µA
DRIVER DISABLE
130
kHz
Output Voltage Swing
Load = 3k to GND Positive
Negative
●
●
5
7.3
V
V
–6.5
– 5
0.8
Logic Input Voltage Level
Input Low Level (V
= High)
= Low)
●
●
1.4
1.4
V
V
OUT
Input High Level (V
2
OUT
Logic Input Current
Output Short-Circuit Current
Output Leakage Current
Data Rate
0.8V ≤ V ≤ 2V
●
5
20
µA
mA
µA
IN
V
OUT
= 0V
±9
±17
10
Shutdown V
= ±30V (Note 4)
●
100
OUT
R = 3k, C = 2500pF
120
250
kbaud
kbaud
L
L
L
L
R = 3k, C = 1000pF
Slew Rate
R = 3k, C = 51pF
15
6
30
V/µs
V/µs
L
L
R = 3k, C = 2500pF (Note 8)
L
L
Propagation Delay
Output Transition t High to Low (Note 5)
0.6
0.5
1.3
1.3
µs
µs
HL
Output Transition t Low to High
LH
Any Receiver
Input Voltage Thresholds
Input Low Threshold (V
= High)
= Low)
●
●
0.8
1.3
1.7
V
V
OUT
OUT
Input High Threshold (V
2.4
1
Hysteresis
●
0.1
3
0.4
5
V
Input Resistance
Output Voltage
–10V < V < 10V
7
kΩ
IN
Output Low, I
= –1.6mA
= 160µA (V = 5V)
●
●
0.2
4.2
0.4
V
V
OUT
OUT
Output High, I
3.5
CC
Output Leakage Current
Shutdown (Note 4) 0 ≤ V
≤ V
●
1
10
µA
OUT
CC
Output Short-Circuit Current
Sinking Current, V
= V
OUT
–20
20
–10
mA
mA
OUT
CC
Sourcing Current, V
= 0V
10
Propagation Delay
Output Transition t High to Low (Note 6)
250
350
600
600
ns
ns
HL
Output Transition t Low to High
LH
Note 1: Absolute Maximum Ratings are those values beyond which the life
Note 5: For driver delay measurements, R = 3k and C = 51pF. Trigger
L L
of the device may be impaired.
points are set between the driver’s input logic threshold and the output
transition to the zero crossing (t = 1.4V to 0V and t = 1.4V to 0V).
HL
LH
Note 2: Testing done at V = 5V and V
= 3V.
CC
ON/OFF
Note 6: For receiver delay measurements, CL = 51pF. Trigger points
are set between the receiver’s input logic threshold and the output
transition to standard TTL/CMOS logic threshold (tHL = 1.3V to 2.4V
and tLH = 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 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
= 0.1V. Supply current measurements
ON/OFF
using DRIVER DISABLE are performed with V
= 3V. For
DRIVER DISABLE
LT1135, LT1139, LT1140 and LT1141 with 12V supplies, V
leakage is
OUT
200µA for V
forced to ±25V.
OUT
Note 8: For LT1137A, 4V/µs minimum.
5
LT1130A/LT1140A Series
U W
TYPICAL PERFOR A CE CHARACTERISTICS
Driver Output Voltage
Receiver Input Thresholds
Supply Current vs Data Rate
10
8
3.00
2.75
2.50
2.25
2.00
1.75
1.50
1.25
1.00
0.75
0.50
100
90
R
= 3k
OUTPUT HIGH
L
5 DRIVER
R
= 3k
L
6
C
= 2500pF
80
70
60
L
V
V
= 5.5V
= 5V
= 4.5V
CC
V
CC
4
CC
2
INPUT HIGH
INPUT LOW
0
50
40
V
V
= 4.5V
CC
= 5.5V
CC
–2
–4
–6
–8
–10
3 DRIVER
V
= 5V
R
= 3k
= 2500pF
L
L
CC
30
20
10
0
C
OUTPUT LOW
50
75 100 125
–55
0
25
50
75 100 125
–55
0
25
–25
–25
0
25
75
100
125
150
50
TEMPERATURE (°C)
TEMPERATURE (°C)
DATA RATE (kBaud)
LT1130A • TPC01
LT1137A • TPC02
LT1130A • TPC03
Supply Current in Shutdown
Supply Current in Driver Disable
Driver Disable Threshold
100
10
1
5
4
3
2
1
0
3.0
2.5
2.0
1.5
1.0
0.5
0
0.1
–55 –25
0
25
50
75 100 125
–55
0
25
50
75
125
–25
100
50
TEMPERATURE (°C)
100 125
–55 –25
0
25
75
TEMPERATURE (°C)
TEMPERATURE (°C)
LT1137A • TPC04
LT1137A • TPC05
LT1137A • TPC06
Supply Current
ON/OFF Thresholds
Driver Leakage in Shutdown
50
45
40
35
30
25
20
15
10
5
3.0
2.5
2.0
1.5
100
10
1
5 DRIVER
3 DRIVER
ON THRESHOLD
1 DRIVER
NO LOAD
V
= 30V
OUT
1.0
0.5
0
V
= –30V
OUT
OFF THRESHOLD
0
0.1
–55
0
25
50
75 100 125
–25
50
TEMPERATURE (°C)
100 125
–55
–25
0
25
50
75 100 125
–55 –25
0
25
75
TEMPERATURE (°C)
TEMPERATURE (°C)
LT1130A • TPC08
LT1137A • TPC07
LT1137A • TPC09
6
LT1130A/LT1140A Series
U W
TYPICAL PERFOR A CE CHARACTERISTICS
Driver Short-Circuit Current
Receiver Short-Circuit Current
50
30
25
20
15
40
30
20
10
0
+
–
ISC
ISC
–
ISC
+
ISC
10
5
0
–55
0
25
50
75 100 125
–25
50
TEMPERATURE (°C)
100 125
–55 –25
0
25
75
TEMPERATURE (°C)
LT1137A • TPC11
LT1137A • TPC10
Driver Output Waveforms
Shutdown to Driver Output
DRIVER OUTPUT
DRIVER
10
5
RL = 3k
OUTPUT HIGH
R
L = 3k
0
DRIVER OUTPUT
DRIVER
R
L = 3k
–5
OUTPUT LOW
C
L = 2500pF
R
L = 3k –10
INPUT
ON/OFF PIN
LT1137A • TPC12
LT1137A • TPC13
U
U
U
PI FU CTIO S
VCC: 5V Input Supply Pin. Supply current drops to zero in
the shutdown mode. This pin should be decoupled with a
0.1µF ceramic capacitor close to the package pin. Insuffi-
cientsupplybypassingcanresultinlowoutputdrivelevels
and erratic charge pump operation.
in a high impedance state. Receivers remain active under
these conditions. Floating the DRIVER DISABLE pin or
driving it to a logic low level fully enables the transceiver.
A logic low on the ON/OFF pin supersedes the state of the
DRIVER DISABLE pin. Supply current drops to 4mA when
in driver disable mode.
GND: Ground Pin.
V+: Positive Supply Output (RS232 Drivers). V+ ≈ 2VCC
–
ON/OFF: Control the operation mode of the device and is
TTL/CMOS compatible. A logic low puts the device in the
shutdownmodewhichreducesinputsupplycurenttozero
and places all of the drivers and receivers in high imped-
ance state. A logic high fully enables the transceiver.
1.5V. This pin requires an external charge storage capaci-
tor C ≥ 1.0µF, tied to ground or VCC. Larger value capaci-
tors may be used to reduce supply ripple. With multiple
transceivers, the V+ and V– pins may be paralleled into
common capacitors. For large numbers of transceivers,
increasing the size of the shared common storage capaci-
tors is recommended to reduce ripple.
DRIVER DISABLE: This pin provides an alternate control
for the charge pump and RS232 drivers. A logic high on
thispinshutsdownthechargepumpandplacesalldrivers
7
LT1130A/LT1140A Series
U
U
U
PI FU CTIO S
V–: Negative Supply Output (RS232 Drivers). V– ≈ –(2VCC
– 2.5V). This pin requires an external charge storage
capacitor C ≥ 0.1µF. V– is short-circuit proof for
30 seconds.
Slew rates are controlled for lightly loaded lines. Output
current capability is sufficient for load conditions up to
2500pF. Outputs are in a high impedance state when in
shutdown mode, VCC = 0V, or when the DRIVER DISABLE
pin is active. Outputs are fully short-circuit protected from
V– + 30V to V+ – 30V. Applying higher voltages will not
damage the device if the overdrive is moderately current
limited. Short circuits on one output can load the power
supply generator and may disrupt the signal levels of the
other outputs. The driver outputs are protected against
ESD to ±10kV for human body model discharges.
C1+, C1–, C2+, C2–: Commutating Capacitor Inputs.
These pins require two external capacitors C ≥ 0.2µF: one
from C1+ to C1–, and another from C2+ to C2–. To
maintainchargepumpefficiency,thecapacitor’seffective
series resistance should be less than 2Ω. For C ≥ 1µF, low
ESR tantalum capacitors work well in this application,
although small value ceramic capacitors may be used
with a minimal reduction in charge pump compliance. In
applications where larger positive voltages are available,
such as 12V, C1 may be omitted and the positive voltage
may be connected directly to the C1+ pin. In this mode of
operation, the V+ pin should be decoupled with a 0.1µF
ceramic capacitor.
RX IN: Receiver Inputs. These pins accept RS232 level
signals (±30V) into a protected 5k terminating resistor.
ThereceiverinputsareprotectedagainstESDto±10kVfor
human body model discharges. Each receiver provides
0.4V of hysteresis for noise immunity. Open receiver
inputs assume a logic low state.
DRIVER IN: RS232 Driver Input Pins. These inputs are
TTL/CMOS compatible. Inputs should not be allowed to
float. Tie unused inputs to VCC.
RX OUT: Receiver Outputs with TTL/CMOS Voltage Lev-
els. Outputs are in a high impedance state when in shut-
down mode to allow data line sharing. Outputs are fully
short-circuit protected to ground or VCC with the power
on, off, or in shutdown mode.
DRIVER OUT: Driver Outputs at RS232 Voltage Levels.
DriveroutputswingmeetsRS232levelsforloadsupto3k.
U
ESD PROTECTIO
ESD Test Circuit
The RS232 line inputs of the LT1130A/LT1140A series of
RS232 Driver/Receivers have on-chip protection from
ESDtransientsupto ±10kV.Theprotectionstructuresact
to divert the static discharge safely to system ground. In
order for the ESD protection to function effectively, the
power supply and ground pins of the LT1130A/LT1140A
must be connected to ground through low impedances.
The power supply decoupling capacitors and charge
pump storage capacitors provide this low impedance in
normal application of the circuit. The only constraint is
that low ESR capacitors must be used for bypassing and
charge storage. ESD testing must be done with pins VCC,
V+, V– and GND shorted to ground or connected with low
ESR capacitors.
–
+
V
1
2
28
27
26
25
24
23
22
21
20
19
18
17
16
15
V
LT1137A
5V V
0.1µF
0.2µF
CC
3
0.1µF
0.1µF
0.2µF
+
+
4
DRIVER 1 IN
RX1 OUT
5
DRIVER 1 OUT
RX1 IN
6
DRIVER 2 IN
RX2 OUT
7
DRIVER 2 OUT
RX2 IN
8
RS232
RX3 OUT
LINE PINS
PROTECTED
TO ±15kV
9
RX3 IN
RX4 OUT
10
11
12
13
14
RX4 IN
DRIVER 3 IN
RX5 OUT
DRIVER 3 OUT
RX5 IN
GND
ON/OFF
DRIVER DISABLE
LT1130A • ESD TC
The ESD protection on the LT1133A, LT1137A and
LT1141A meets ±15kV air gap discharge and ±8kV con-
tact methods per IEC-1000-4-2.
8
LT1130A/LT1140A Series
U
TYPICAL APPLICATIO S
Operation Using 5V and 12V Power Supplies
+
–
V
V
1
2
28
27
26
25
24
23
22
21
20
19
18
17
16
15
LT1137A
V
CC
+
0.1µF
0.1µF
5V V
CC
C1
C1
3
+
× 2
12V V
0.01µF
4
–
0.01µF
DRIVER IN
RX OUT
DRIVER IN
RX OUT
RX OUT
RX OUT
DRIVER IN
RX OUT
GND
5
DRIVER OUT
RX IN
6
7
DRIVER OUT
RX IN
TO LOGIC
8
TO LINE
9
RX IN
10
11
12
13
14
RX IN
DRIVER OUT
RX IN
ON/0FF = 5V
DRIVER DISABLE
LT1130A • TA03
Typical Mouse Driving Application
–
+
V
1
2
28
27
26
V
LT1137A
0.1µF
5V V
0.1µF
× 2
0.1µF
CC
MOUSE
3
0.1µF
× 2
4
25 DRIVER 1 IN
24 RX1 OUT
23 DRIVER 2 IN
22 RX2 OUT
21 RX3 OUT
20 RX4 OUT
19 DRIVER 3 IN
18 RX5 OUT
17 GND
LOGIC “0”
LOGIC “0”
+
V
5
DRIVER 1 OUT
RX1 IN
LOGIC
6
DCD
(1)
7
DSR
RX
DRIVER 2 OUT
RX2 IN
8
MOUSE DATA
LOGIC “1”
9
RTS
TX
RX3 IN
OPTICS
10
11
12
13
14
RX4 IN
–
CTS
DTR
RI
DRIVER 3 OUT
RX5 IN
V
16 DRIVER DISABLE
15
ON/OFF
(9)
(5)
DB9
LT1130A • TA04
9
LT1130A/LT1140A Series
U
Dimensions in inches (millimeters) unless otherwise noted.
PACKAGE DESCRIPTIO
G Package
28-Lead Plastic SSOP (0.209)
(LTC DWG # 05-08-1640)
0.397 – 0.407*
(10.07 – 10.33)
0.205 – 0.212**
(5.20 – 5.38)
0.068 – 0.078
(1.73 – 1.99)
28 27 26 25 24 23 22 21 20 19 18
16 15
17
0° – 8°
0.301 – 0.311
(7.65 – 7.90)
0.0256
(0.65)
BSC
0.005 – 0.009
0.022 – 0.037
(0.55 – 0.95)
(0.13 – 0.22)
0.002 – 0.008
(0.05 – 0.21)
0.010 – 0.015
(0.25 – 0.38)
*DIMENSIONS DO NOT INCLUDE MOLD FLASH. MOLD FLASH
SHALL NOT EXCEED 0.006" (0.152mm) PER SIDE
**DIMENSIONS DO NOT INCLUDE INTERLEAD FLASH. INTERLEAD
FLASH SHALL NOT EXCEED 0.010" (0.254mm) PER SIDE
5
7
1
2
3
4
6
8
9
10 11 12 13 14
G28 SSOP 0694
N Package
20-Lead PDIP (Narrow 0.300)
(LTC DWG # 05-08-1510)
1.040*
(26.416)
MAX
0.300 – 0.325
(7.620 – 8.255)
0.130 ± 0.005
(3.302 ± 0.127)
0.045 – 0.065
(1.143 – 1.651)
20
19
18
17
16
15
14
13
12
11
10
0.020
(0.508)
MIN
0.255 ± 0.015*
(6.477 ± 0.381)
0.065
(1.651)
TYP
0.009 – 0.015
(0.229 – 0.381)
+0.035
3
4
5
6
7
8
1
2
9
0.325
0.005
(0.127)
MIN
0.100 ± 0.010
(2.540 ± 0.254)
–0.015
0.125
(3.175)
MIN
0.018 ± 0.003
(0.457 ± 0.076)
+0.889
8.255
(
)
–0.381
N20 1197
*THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS.
MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED 0.010 INCH (0.254mm)
N Package
24-Lead PDIP (Narrow 0.300)
(LTC DWG # 05-08-1510)
1.265*
(32.131)
MAX
0.300 – 0.325
(7.620 – 8.255)
0.045 – 0.065
(1.143 – 1.651)
0.130 ± 0.005
(3.302 ± 0.127)
24
23
22
21
20
19
18
17
16
15
14
11
13
0.020
(0.508)
MIN
0.255 ± 0.015*
(6.477 ± 0.381)
0.065
(1.651)
TYP
0.009 – 0.015
(0.229 – 0.381)
0.125
(3.175)
MIN
5
7
1
2
3
4
6
8
9
10
12
+0.035
–0.015
0.018 ± 0.003
(0.457 ± 0.076)
0.325
N24 1197
0.100 ± 0.010
(2.540 ± 0.254)
+0.889
8.255
(
)
–0.381
*THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS.
MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED 0.010 INCH (0.254mm)
10
LT1130A/LT1140A Series
U
Dimensions in inches (millimeters) unless otherwise noted.
PACKAGE DESCRIPTIO
NW Package
28-Lead PDIP (Wide 0.600)
(LTC DWG # 05-08-1520)
0.070
(1.778)
TYP
1.455*
(36.957)
MAX
0.045 – 0.065
(1.143 – 1.651)
0.150 ± 0.005
(3.810 ± 0.127)
0.600 – 0.625
(15.240 – 15.875)
28 27 26 25 24 23 22 21 20 19 18 17 16 15
0.015
(0.381)
MIN
0.009 – 0.015
(0.229 – 0.381)
0.505 – 0.560*
(12.827 – 14.224)
+0.035
–0.015
0.625
0.125
(3.175)
MIN
0.035 – 0.080
(0.889 – 2.032)
0.018 ± 0.003
(0.457 ± 0.076)
+0.889
15.87
1
2
3
5
7
9
4
6
8
10 11 12 13 14
(
)
–0.381
0.100 ± 0.010
(2.540 ± 0.254)
N28 1197
*THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS.
MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED 0.010 INCH (0.254mm)
SW Package
20-Lead Plastic Small Outline (Wide 0.300)
(LTC DWG # 05-08-1620)
0.291 – 0.299**
(7.391 – 7.595)
0.496 – 0.512*
(12.598 – 13.005)
0.037 – 0.045
(0.940 – 1.143)
0.093 – 0.104
0.010 – 0.029
19 18
16
14 13 12 11
20
17
15
× 45°
(2.362 – 2.642)
(0.254 – 0.737)
0° – 8° TYP
0.050
(1.270)
TYP
0.394 – 0.419
(10.007 – 10.643)
NOTE 1
0.009 – 0.013
NOTE 1
0.004 – 0.012
(0.102 – 0.305)
(0.229 – 0.330)
0.014 – 0.019
0.016 – 0.050
(0.406 – 1.270)
(0.356 – 0.482)
TYP
NOTE:
1. PIN 1 IDENT, NOTCH ON TOP AND CAVITIES ON THE BOTTOM OF PACKAGES ARE THE MANUFACTURING OPTIONS.
THE PART MAY BE SUPPLIED WITH OR WITHOUT ANY OF THE OPTIONS
2
3
5
7
8
9
10
1
4
6
*DIMENSION DOES NOT INCLUDE MOLD FLASH. MOLD FLASH SHALL NOT EXCEED 0.006" (0.152mm) PER SIDE
S20 (WIDE) 0396
**DIMENSION DOES NOT INCLUDE INTERLEAD FLASH. INTERLEAD FLASH SHALL NOT EXCEED 0.010" (0.254mm) PER SIDE
SW Package
24-Lead Plastic Small Outline (Wide 0.300)
(LTC DWG # 05-08-1620)
0.598 – 0.614*
(15.190 – 15.600)
0.291 – 0.299**
(7.391 – 7.595)
0.037 – 0.045
(0.940 – 1.143)
0.093 – 0.104
(2.362 – 2.642)
24 23 22 21 20 19 18
16 15 14 13
17
0.010 – 0.029
(0.254 – 0.737)
× 45°
0° – 8° TYP
0.050
(1.270)
TYP
0.394 – 0.419
(10.007 – 10.643)
NOTE 1
0.009 – 0.013
NOTE 1
(0.229 – 0.330)
0.014 – 0.019
0.016 – 0.050
(0.356 – 0.482)
TYP
0.004 – 0.012
(0.102 – 0.305)
(0.406 – 1.270)
NOTE:
1. PIN 1 IDENT, NOTCH ON TOP AND CAVITIES ON THE BOTTOM OF PACKAGES ARE THE MANUFACTURING OPTIONS.
THE PART MAY BE SUPPLIED WITH OR WITHOUT ANY OF THE OPTIONS
*DIMENSION DOES NOT INCLUDE MOLD FLASH. MOLD FLASH SHALL NOT EXCEED 0.006" (0.152mm) PER SIDE
**DIMENSION DOES NOT INCLUDE INTERLEAD FLASH. INTERLEAD FLASH SHALL NOT EXCEED 0.010" (0.254mm) PER SIDE
2
3
5
7
8
9
10
1
4
6
11 12
S24 (WIDE) 0996
Information furnished by Linear Technology Corporation is believed to be accurate and reliable.
However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen-
tationthattheinterconnectionofitscircuitsasdescribedhereinwillnotinfringeonexistingpatentrights.
11
LT1130A/LT1140A Series
U
Dimensions in inches (millimeters) unless otherwise noted.
PACKAGE DESCRIPTIO
SW Package
28-Lead Plastic Small Outline (Wide 0.300)
(LTC DWG # 05-08-1620)
0.697 – 0.712*
(17.70 – 18.08)
0.291 – 0.299**
(7.391 – 7.595)
0.037 – 0.045
(0.940 – 1.143)
0.093 – 0.104
(2.362 – 2.642)
0.010 – 0.029
(0.254 – 0.737)
28 27 26 25 24 23 22 21 20 19 18
16 15
17
× 45°
0° – 8° TYP
0.394 – 0.419
(10.007 – 10.643)
0.050
NOTE 1
(1.270)
0.009 – 0.013
TYP 0.014 – 0.019
0.004 – 0.012
(0.102 – 0.305)
(0.229 – 0.330)
NOTE 1
(0.356 – 0.482)
TYP
0.016 – 0.050
(0.406 – 1.270)
NOTE:
2
3
5
7
8
9
10 11 12 13 14 S28 (WIDE) 0996
1. PIN 1 IDENT, NOTCH ON TOP AND CAVITIES ON THE BOTTOM OF PACKAGES ARE THE MANUFACTURING OPTIONS.
THE PART MAY BE SUPPLIED WITH OR WITHOUT ANY OF THE OPTIONS
1
4
6
DIMENSION DOES NOT INCLUDE MOLD FLASH. MOLD FLASH SHALL NOT EXCEED 0.006" (0.152mm) PER SIDE
DIMENSION DOES NOT INCLUDE INTERLEAD FLASH. INTERLEAD FLASH SHALL NOT EXCEED 0.010" (0.254mm) PER SIDE
*
**
U
TYPICAL APPLICATION
Sharing Power Supply Generator with a Second Transceiver
1µF
+
–
–
+
+
V
V
1
2
24
23
22
21
20
19
18
17
16
15
14
13
1
2
24
V
5V V
V
LT1133A
LT1141A
–
+
23
22
21
20
19
18
17
16
15
14
13
C2
C2
CC
+
+
5V V
CC
NC
1µF
1µF
C1
3
3
+
+
NC
RX IN
RX OUT
DRIVER IN
RX OUT
–
1µF
C1
4
4
DRIVER IN
RX OUT
DRIVER IN
RX OUT
RX OUT
RX OUT
DRIVER IN
RX OUT
GND
5
5
DRIVER OUT
RX IN
DRIVER OUT
RX IN
6
6
DRIVER IN
TO
7
7
LOGIC
DRIVER OUT
RX IN
TO
RS232
LINE
DRIVER OUT
RX IN
RX OUT
TO
LOGIC
8
8
TO
RS232
LINE
DRIVER IN
RX OUT
9
9
RX IN
DRIVER OUT
RX IN
10
11
12
10
11
12
RX IN
RX OUT
GND
DRIVER OUT
RX IN
RX IN
ON/OFF
DRIVER
DISABLE
LT1130A • TA05
RELATED PARTS
PART NUMBER
DESCRIPTION
COMMENTS
LT1180A/LT1181A 2-Driver/2-Receiver RS232 Transceivers
Single 5V Supply with 0.1µF Capacitors
Lower Power Upgrade for LT1137A
3.3V Operation
LT1237
3-Driver/5-Receiver RS232 Transceiver
3-Driver/5-Receiver RS562 Transceiver
3-Driver/5-Receiver RS232 Transceiver
5-Driver/3-Receiver RS232 Transceiver
3-Driver/5-Receiver RS232 Transceiver
LTC1327
LTC1337
LTC1338
LTC1348
Ultralow Power for DTE Applications
Ultralow Power for DCE Applications
3.3V to 5V Operation
1130asfb LT/TP 0799 2K REV B • PRINTED IN USA
LINEAR TECHNOLOGY CORPORATION 1993
Linear Technology Corporation
●
1630 McCarthy Blvd., Milpitas, CA 95035-7417 (408)432-1900
12
●
●
FAX: (408) 434-0507 TELEX: 499-3977 www.linear-tech.com
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