LT1032 Linear Technology Corporation, LT1032 Datasheet

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LT1032

Manufacturer Part Number
LT1032
Description
Quad Low Power Line Driver
Manufacturer
Linear Technology Corporation
Datasheet

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FEATURES
TYPICAL APPLICATIO
APPLICATIO S
Low Operating Voltage: 5V to 15V
500 A Supply Current
Zero Supply Current when Shut Down
Outputs Can Be Driven 30V
Thermal Limiting
Output “Open” when Off (Three-State)
10mA Output Drive
Pinout Similar to 1488
RS232
Power Supply Inverter
Micropower Interface
Level Translator
(0V TO 5V)
*NO CONNECTION NEEDED WHEN NOT USED
OUTPUT
OUTPUT
5V = ON
ON/OFF
INPUT
INPUT
GND
–6V
U
RS232 Line Driver
1
2
3
4
5
6
7
LT1032
U
14
13
12
11
10
9
8
6V
STROBE*
INPUT
OUTPUT
RESPONSE TIME
CONTROL*
INPUT
OUTPUT
LT1032 • TA01
DESCRIPTIO
The LT
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
both current and thermal limiting. Since the output swings
to within 200mV of the positive supply and 600mV of the
negative supply, power supply needs are minimized.
Also included is a strobe pin to force all outputs low
independent of input or shutdown conditions. Further,
slew rate can be adjusted with a resistor connected to the
supply.
A major advantage of the LT1032 is the high impedance
output state when off or powered down.
For applications requiring dual or triple RS232 driver/
receiver devices, see the LT1180A (dual), LT1039A (triple)
or the LT1130A data sheets.
, LTC and LT are registered trademarks of Linear Technology Corporation.
®
1032 is a RS232 and RS423 line driver that
0.2
0.4
0.4
0.2
1.0
0.8
0.6
V
V
+
0
Output Swing vs Output Current
2
Quad Low Power
U
OUTPUT CURRENT (mA)
4
V
V
OUT
OUT
HIGH
LOW
6
Line Driver
8
LT1032 • TA02
10
LT1032
1032fe
1

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LT1032 Summary of contents

Page 1

... Further, slew rate can be adjusted with a resistor connected to the supply. A major advantage of the LT1032 is the high impedance output state when off or powered down. For applications requiring dual or triple RS232 driver/ receiver devices, see the LT1180A (dual), LT1039A (triple) or the LT1130A data sheets ...

Page 2

... Logic Input Current ON/OFF Pin Current Slew Rate (Note 1) Operating Temperature Range – to 25V LT1032C ............................................... LT1032I ........................................... – – 30V, V – 30V LT1032M ....................................... – 125 C C Grade Guaranteed Functional by Design .............................. – Lead Temperature (Soldering, 10 sec)................. 300 ORDER PART NUMBER LT1032CN LT1032IN 2 3 ON/OFF GND ...

Page 3

... MIN TYP MAX 50 – Off Supply Current vs Temperature 1000 V = 12V S 100 TEMPERATURE ( C) LT1032 • TPC02 Response Pin Leakage vs Temperature (Device Off) 1000 100 – 125 TEMPERATURE ( C) LT1032 • TPC05 LT1032 UNITS % % A 100 125 LT1032 • TPC03 75 100 LT1032 • G06 1032fe 3 ...

Page 4

... LT1032 • TPC08 Slew Rate vs Temperature 20 18 RISING 16 FALLING 12V 51pF SLEW 0 –50 – 100 125 TEMPERATURE ( C) LT1032 • TPC11 ON/OFF Response Time 5V/DIV 12V S 10V C = 51pF – – 10V 200 s 400 s 600 s 1ms LT1032 • TPC13 100 125 150 LT1032 • TPC09 ...

Page 5

... Strobe (J & N: Pin 13/ S: Pin 15): Forces all outputs low. Drive with 3V & N:Pin 14/S: Pin 15): Positive Supply. Operates 15V. Output Waveform R = 450 51pF OUT – 2V – LT1032 • TPC15 Strobe Pin Response 5V/DIV 12V 51pF L INPUT LT1032 • TPC17 – . LT1032 20 s 1032fe 5 ...

Page 6

... The ON/OFF control completely turns off all supply current of the LT1032. The levels required to drive the device on or off are set by internal emitter-based voltages. Since the current into the ON/OFF pin is so low, TTL or CMOS drivers have no problem controlling the device ...

Page 7

... EE CC 1/4 LT1032CN 40k* ON/OFF 15k GND LT1032 • TA10 1N4148 1N4148 *LEVEL SHIFTING RESISTORS NEEDED FOR EACH INPUT LT1032 Strobing with CMOS ANY CMOS TO PIN 13 GATE OF LT1032 LT1032 • TA07 R 1 LT1032CSW C LT1032 • TA09 OUTPUT 0.7V TO 4.8V 1 3.3RC 1032fe 7 ...

Page 8

... Q24 Q26 Q18 Q23 Q20 Q17 Q12 Q27 Q15 Q16 D2 Q22 D1 R11 Q21 120 RESPONSE STROBE TIME ADJ DRIVERS Q32 Q29 Q33 C2 3pF Q36 D3 Q28 Q39 Q30 R18 5k Q34 R17 7.5k C1 Q31 10pF 2k OUTPUT Q37 R14 2k D4 Q40 R16 3 LT1032 • SS 1032fe ...

Page 9

... OBSOLETE PACKAGE 0.785 MAX 0.220 – 0.310 (5.588 – 7.874 0.200 (5.080) MAX 0.015 – 0.060 (0.381 – 1.524) 0.100 0.125 (2.54) (3.175) BSC 0.014 – 0.026 MIN J14 1298 LT1032 1032fe 9 ...

Page 10

... LT1032 PACKAGE DESCRIPTIO 0.300 – 0.325 (7.620 – 8.255) 0.009 – 0.015 (0.229 – 0.381) +0.035 0.325 –0.015 +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 Package 14-Lead PDIP (Narrow .300 Inch) ...

Page 11

... TYP 0.050 (1.270) BSC 0.014 – 0.019 (0.356 – 0.482) 0.398 – 0.413* (10.109 – 10.490 0.394 – 0.419 (10.007 – 10.643 0.037 – 0.045 (0.940 – 1.143) 0.004 – 0.012 (0.102 – 0.305) TYP S16 (WIDE) 1098 LT1032 1032fe 11 ...

Page 12

... Driver/5 Receiver (LT1133A, LT1137A, LT1141A) 15kV Pin Compatible Upgrade to LT1080/LT1081 and LT1180A/LT1181A www.linear.com V OUT 13. LOAD + 12V AT 10mA 470 F –V OUT –13. LOAD –12V AT 10mA 470 F + LT1032 • TA08 LT/TP 0302 1.5K REV E • PRINTED IN USA LINEAR TECHNOLOGY CORPORATION 1994 1032fe ...

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