LT1030 [Linear]
Quad Low Power Line Driver; 四路低功耗线路驱动器
| 型号： | LT1030 |
| 厂家： | 
Linear |
| 描述： | Quad Low Power Line Driver |
| 文件： | 总4页 (文件大小：178K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
LT1030
Quad Low Power
Line Driver
U
FEATURES
DESCRIPTION
The LT® 1030 is an RS232 line driver that operates over a
±5V to ±15V range on low supply current and can be shut
down to zero supply current. Outputs are fully protected
from externally applied voltages of ±30V by current limit-
ing. Since the output swings to within 200mV of the
positive supply and 1V of the negative supply, power
supply needs are minimized.
■
Low Operating Voltage ±5V to ±15V
Supply Current: 500µA
■
■
■
■
■
■
■
Zero Supply Current When Shut Down
Outputs Can Be Driven 30V
Output “Open” When Off (Three-State)
Output Drive: 10mA
Pinout Similar to 1488*
Output of Several Devices Can Be Paralleled
±
A major advantage of the LT1030 is the high impedance
output state when off or powered down, which allows
several different drivers on the same bus.
U
APPLICATIONS
■
RS232 Driver
Our RS232 product line includes other high performance
devices. The LT1039 is a triple low power driver/receiver
with shutdown that can be powered from a 5V supply. The
LT1080 is a 5V powered dual driver/receiver with on-chip
±9V power generator and shutdown.
■
Micropower Interface
■
Level Translator
, LTC and LT are registered trademarks of Linear Technology Corporation.
*Check compatability (some pins may be different).
U
TYPICAL APPLICATIONS
Output Swing vs Output Current
RS232 Line Driver
+
V
1
2
3
4
5
6
7
14
13
12
11
10
9
–0.2
–0.4
OUTPUT HIGH
LT1030
–6V
INPUT
6V
STROBE*
INPUT
OUTPUT
NC
OUTPUT
1.2
1.0
0.8
0.6
0.4
0.2
ON/OFF
(0V TO 5V)†
OUTPUT LOW
INPUT
OUTPUT
GND
INPUT
OUTPUT
8
–
V
*NO CONNECTION NEEDED WHEN NOT USED
†5V = ON
0
1
2
3
4
5
OUTPUT CURRENT (mA)
LT1030 • TA01
LT1030 • TA02
1
LT1030
W W
U W
U
W U
ABSOLUTE MAXIMUM RATINGS
PACKAGE/ORDER INFORMATION
Supply Voltage ...................................................... ±15V
Logic Input Pins ............................................. V– to 25V
On/Off Pin.................................................... GND to 12V
Output (Forced) .............................. V– + 30V, V+ – 30V
Short-Circuit Duration (to ±30V) ..................... Indefinite
Operating Temperature Range
TOP VIEW
ORDER PART
+
–
V
V
NUMBER
1
2
3
4
5
6
7
14
13
12
11
10
9
(5V TO 15V)
STROBE
(–15V TO –5V)
LT1030CN
LT1030CS
ON/OFF
(0V TO 5V)
Commercial ............................................. 0°C to 70°C
Guaranteed Functional by Design ....... –25°C to 85°C
Storage Temperature ............................ –65°C to 150°C
Lead Temperature (Soldering, 10 sec).................. 300°C
8
GND
S PACKAGE
14-LEAD PLASTIC SO
N PACKAGE
14-LEAD PDIP
LT1030CJ
CONSULT
FACTORY
TJMAX = 125°C, θJA = 90°C/ W (N)
JMAX = 125°C, θJA = 95°C/ W (S)
T
Consult factory for Industrial and Military grade parts.
(Supply Voltage = ±5 to ±15V)
ELECTRICAL CHARACTERISTICS
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Supply Current
Power Supply Leakage Current
V
≥ 2.4V, I
≤ 0.4V
≤ 0.1V
Positive
Negative
± 5V to ±15V
= 0, All Outputs Low
OUT
●
●
500
1
10
– 0.1V
+ 0.9V
12
1000
10
150
µA
µA
µA
V
V
mA
V
µA
µA
V
V
V
ON/OFF
V
V
ON/OFF
ON/OFF
+
+
Output Voltage Swing
Load = 2mA
V
V
– 0.3V
V
V
–
–
V
V
+ 1.4V
Output Current
Output Overload Voltage (Forced)
Output Current
V
5
SUPPLY
+
–
Operating or Shutdown
Shutdown
●
●
●
●
– 30V
+ 30V
V
V
= 0V, V
= ±30V
OUT
2
2
100
100
15
S
= ±15V, V
= ±20V
S
OUT
–
Input Overload Voltage (Forced)
Logic Input Levels
Operating or Shutdown
Low Input (V
High Input (V
V
= High)
= Low)
1.4
1.4
0.8
OUT
OUT
2
Logic Input Current
V
IN
V
IN
> 2.0V
< 0.8V
2
10
20
20
µA
µA
On/Off Pin Current
Slew Rate
0 ≤ V ≤ 5V
●
–10
4
30
15
65
30
µA
V/µS
IN
Note 1: 3V applied to the Strobe pin will force all outputs low. Strobe pin
The
● denotes specifications which apply over the full operating
input impedance is about 2k to ground. Leave open when not used.
temperature range.
U
U
U
PIN FUNCTIONS
V–(Pin 1): Operates –15V to –2V.
STROBE (Pin 13): Forces all outputs low. Drive with 3V.
V+ (Pin 14): Positive supply 5V to 15V.
LOGIC INPUT (Pins 2, 5, 9, 12): Operate properly on TTL
or CMOS levels. Output valid from (V– + 2V) ≤ VIN ≤ 15V.
Connect to 5V when not used.
14
8
LT1030
OUTPUT (Pins 3, 6, 8, 11): Line drive outputs.
1
7
ON/OFF (Pin 4): Shuts down entire circuit. Cannot be left
open. For “normally on” operation, connect between 5V to
10V.
GND (Pin 7): Ground must be more positive than V–.
1N4001
LT1030 • PF01
Note: As with other bipolar ICs, forward biasing the substrate diode can cause
problems. The LT1030 will draw high current from V to ground if the V pin is open
circuited or pulled above ground. If this is possible, connecting a diode from V to
ground will prevent the high current state. Any low cost diode can be used.
+
–
–
2
LT1030
W
U
TYPICAL PERFORMANCE CHARACTERISTICS
On Supply Current vs
Temperature
On Supply Current vs Supply
Voltage
Off Supply Current vs
Temperature
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
100
10
V
= ±12V
V
= ±12V
SUPPLY
SUPPLY
ALL OUTPUTS HIGH
ALL OUTPUTS HIGH
0
0.1
0.01
ALL OUTPUTS LOW
ALL OUTPUTS LOW
–75
25
TEMPERATURE (°C)
75 100
125
–50 –25
0
50
10
20
25
15
30
25
50
75
TEMPERATURE (°C)
100
125
TOTAL SUPPLY VOLTAGE (V)
LT1030 • TPC03
LT1030 • TPC01
LT1030 • TPC02
Shutdown Voltage vs
Temperature
Off Output Leakage vs
Temperature
On/Off Pin Current vs Voltage
140
120
100
80
2.4
100
10
V
= ±12V
SUPPLY
R
= 3k
2.2
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
GND
L
MAX OFF VOLTAGE
(I
< 200µA)
OUT
OUTPUT FORCED
TO –25V
MIN ON VOLTAGE
60
0
40
OUTPUT FORCED
20
0.1
0.01
TO 25V
MAX OFF VOLTAGE
(I < 20µA)
0
OUT
–20
5
10
0
25
GND
15
–75 –50 –25
50 75 100 125
25
50
75
100
125
TEMPERATURE (°C)
ON/OFF PIN VOLTAGE (V)
TEMPERATURE (°C)
LT1030 • TPC04
LT1030 • TPC05
LT1030 • TPC06
Output Swing vs Temperature
Slew Rate vs Temperature
Current Limit vs Temperature
+
V
25
23
21
19
17
15
13
11
9
35
30
25
20
15
10
5
V
= ±12V
= 3K
S
–0.2
–0.4
1.4
1.2
1.0
0.8
0.6
0.4
0.2
R
L
L
I
= 5mA
OUT
C
V
= 51pF
I
= 1mA
OUT
SINKING
= ±8V
SLEW
FALLING
I
= –5mA
OUT
RISING
SOURCING
I
= –1mA
OUT
7
–
V
5
50 75
TEMPERATURE (°C)
–75
75 100
125
–75 –50 –25
0
25
100 125
–50 –25
0
25 50
TEMPERATURE (°C)
100
125
–75
25
TEMPERATURE (°C)
75
–50 –25
0
50
LT1030 • TPC08
LT1332 • TPC06
LT1030 • TPC09
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.
3
LT1030
TYPICAL PERFORMANCE CHARACTERISTICS
W
U
On-Off Response Time
On-Off Response Time
Output Waveforms
VS = ±12V
L = 3k
CL = 51pF
VS = ±6V
RL = 3k
CL = 51pF
6V
4V
2V
0V
0V
R
RL = 3k
OUTPUT
5V
0V
10V
OUTPUT
OUTPUT
CL = 51pF
(VIN = 0V)
5V
(VIN = 0V)
(VS = ±6V)
–5V
0V
0V
OUTPUT
(VIN = 5V)
OUTPUT
(VIN = 5V)
10V
0V
–10V
5V
0V
– 2V
– 4V
– 6V
5V
–5V
OUTPUT
(VS = ±12V)
–10V
ON/OFF
INPUT
5V
0V
ON/OFF
INPUT
INPUT
0V
H = 100µs/DIV
H = 2µs/DIV
H = 100µs/DIV
Output Waveform Driving
Capacitive Load
Strobe Pin Response Time
V
S = ±6V
V
V
IN = 5V
RL = 3k
S = ±6V
6V
4V
CL = 0.01µF
R
L = 3k
10V
5V
0V
CL = 0.01µF
2V
0V
–2V
–4V
–6V
5V
0V
OUTPUT
INPUT
OUTPUT
–5V
–10V
STROBE
INPUT
5V
0V
H = 10µs/DIV
H = 2µs/DIV
U
PACKAGE DESCRIPTION Dimension in inches (millimeters) unless otherwise noted.
N Package
14-Lead Plastic DIP
0.045 – 0.065
(1.143 – 1.651)
0.770*
0.130 ± 0.005
(3.302 ± 0.127)
0.300 – 0.325
(7.620 – 8.255)
(19.558)
MAX
14 13
12
11
10
9
6
8
7
0.015
(0.380)
MIN
0.065
0.255 ± 0.015*
(6.477 ± 0.381)
0.009 – 0.015
(0.229 – 0.381)
(1.651)
TYP
+0.025
0.325
0.005
(0.125)
MIN
0.100 ± 0.010
(2.540 ± 0.254)
–0.015
0.125
0.018 ± 0.003
(0.457 ± 0.076)
1
2
3
5
4
N14 0695
+0.635
(3.175)
8.255
(
–0.381)
MIN
*THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS.
MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED 0.010 INCH (0.254mm)
0.337 – 0.344*
(8.560 – 8.738)
S Package
14-Lead Plastic SO
14
13
12
11
10
9
8
0.010 – 0.020
0.228 – 0.244
× 45°
0.053 – 0.069
(0.254 – 0.508)
(5.791 – 6.197)
(1.346 – 1.752)
0.150 – 0.157**
(3.810 – 3.988)
0.004 – 0.010
(0.101 – 0.254)
0.008 – 0.010
(0.203 – 0.254)
0° – 8° TYP
0.050
(1.270)
TYP
0.014 – 0.019
(0.355 – 0.483)
0.016 – 0.050
0.406 – 1.270
1
2
3
4
5
6
7
S14 0695
*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
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PART NUMBER
DESCRIPTION
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LT/GP 0895 2K • REV B PRINTED IN USA
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7487
4
●
●
(408) 432-1900 FAX: (408) 434-0507 TELEX: 499-3977
LINEAR TECHNOLOGY CORPORATION 1987
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