LT1130A LINER [Linear Technology], LT1130A Datasheet

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LT1130A

Manufacturer Part Number
LT1130A
Description
Advanced Low Power 5V RS232 Drivers/Receivers with Small Capacitors
Manufacturer
LINER [Linear Technology]
Datasheet

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FEATURES
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
TYPICAL APPLICATIO
TO LINE
ESD Protection over 10kV
( 15kV IEC-1000-4-2 for LT1133A, LT1137A
and LT1141A)
Uses Small Capacitors: 0.1 F, 0.2 F
1 A Supply Current in SHUTDOWN
120kBaud Operation for R
250kBaud Operation for R
CMOS Comparable Low Power
Easy PC Layout: Flowthrough Architecture
Rugged Bipolar Design: Absolutely No Latchup
Outputs Assume a High Impedance State When Off
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
0.1 F
0.1 F
2
DRIVER OUT
DRIVER OUT
DRIVER OUT
ON/OFF = 5V
5V V
RX IN
RX IN
RX IN
RX IN
RX IN
CC
V
+
10
11
12
13
14
1
2
3
4
5
6
7
8
9
Basic Operation
LT1137A
L
L
= 3k, C
= 3k, C
28
27
26
25
24
23
22
21
20
19
18
17
16
15
U
DRIVER IN
RX OUT
DRIVER IN
RX OUT
RX OUT
RX OUT
DRIVER IN
RX OUT
V
GND
DRIVER DISABLE
L
L
1130A • TA01
= 2500pF
= 1000pF
0.1 F
TO LOGIC
2
0.1 F
DESCRIPTIO
The LT
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.
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
C
L
, LTC and LT are registered trademarks of Linear Technology Corporation.
RECEIVER
C
R
= 2500pF
OUTPUT
L
OUTPUT
DRIVER
R
= 50pF
INPUT
L
= 3k
®
5V RS232 Drivers/Receivers
1130A/LT1140A series of RS232 drivers/receiv-
LT1130A/LT1140A Series
Advanced Low Power
with Small Capacitors
U
Output Waveforms
LT1130A • TA02
1

Related parts for LT1130A

LT1130A Summary of contents

Page 1

... ON/OFF = 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 5V RS232 Drivers/Receivers DESCRIPTIO ® ...

Page 2

... LT1140A 5, 12, –12 LT1141A** 5, 12, –12 *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. U PACKAGE/ORDER I FOR ATIO 5-DRIVER/5-RECEIVER ...

Page 3

... RX OUT GND ON/OFF 14 15 DRIVER DISABLE NW PACKAGE SW PACKAGE 28-LEAD PDIP 28-LEAD PLASTIC SO WIDE T = 150 C/W (NW) JMAX 150 C/W (SW) JMAX JA LT1130A/LT1140A Series W U ORDER PART 3-DRIVER/5-RECEIVER NUMBER + V 1 LT1132ACN LT1132ACSW C1 3 – LT1132AISW DRIVER OUT 5 ...

Page 4

... ELECTRICAL C HARA TERISTICS C temperature range, otherwise specifications are at T PARAMETER Power Supply Generator + V Output – V Output 5V V Supply Current: LT1130A, LT1131A, LT1132A, CC LT1133A, LT1134A, LT1136A, LT1138A 5V V Supply Current: LT1135A, LT1140A, LT1141A Supply Current: LT1137A Supply Current: LT1139A CC + 12V V ...

Page 5

... TTL/CMOS logic threshold (t and t = 1.7V to 0.8V). LH Note 7: For LT1133A/LT1137A, absolute maximum externally applied = 3V. For – – 6.5V. Internal charge pump will drive this pin to a higher nega- leakage is OUT tive voltage. Note 8: For LT1137A, 4V/ s minimum. LT1130A/LT1140A Series MIN TYP MAX 2.0 0.2 1.4 0.8 2.4 1.4 – ...

Page 6

... Driver Disable Threshold 3.0 2.5 2.0 1.5 1.0 0.5 0 125 100 –55 – TEMPERATURE (°C) Driver Leakage in Shutdown 100 10 V OUT –30V OUT 0.1 100 125 – –25 TEMPERATURE (°C) 125 150 LT1130A • TPC03 75 100 125 LT1137A • TPC06 = 30V 75 125 100 LT1137A • TPC09 ...

Page 7

... C 1.0 F, tied to ground or V tors may be used to reduce supply ripple. With multiple transceivers, the V common capacitors. For large numbers of transceivers, increasing the size of the shared common storage capaci- tors is recommended to reduce ripple. LT1130A/LT1140A Series Receiver Short-Circuit Current – ISC + ISC ...

Page 8

... DRIVER OUT: Driver Outputs at RS232 Voltage Levels. Driver output swing meets RS232 levels for loads up to 3k. U ESD PROTECTIO The RS232 line inputs of the LT1130A/LT1140A series of RS232 Driver/Receivers have on-chip protection from ESD transients up to 10kV. The protection structures act to divert the static discharge safely to system ground. In ...

Page 9

... DRIVER 1 IN LOGIC “0” RX1 OUT 6 23 DRIVER 2 IN LOGIC “0” RX2 OUT RX3 OUT 8 21 MOUSE DATA 9 20 RX4 OUT 19 DRIVER 3 IN LOGIC “1” 18 RX5 OUT 17 GND DRIVER DISABLE 16 15 0.1 F LT1130A • TA04 9 ...

Page 10

... LT1130A/LT1140A Series PACKAGE DESCRIPTIO 0.205 – 0.212** (5.20 – 5.38) 0 – 8 0.005 – 0.009 0.022 – 0.037 (0.13 – 0.22) (0.55 – 0.95) * 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 0.300 – ...

Page 11

... TYP SW Package 24-Lead Plastic Small Outline (Wide 0.300) (LTC DWG # 05-08-1620) 0.037 – 0.045 (0.940 – 1.143) 0.014 – 0.019 (0.356 – 0.482) 0.004 – 0.012 TYP (0.102 – 0.305) LT1130A/LT1140A Series 1.455* (36.957) MAX ...

Page 12

... RX OUT DRIVER OUT OUT 11 14 GND ON/OFF DRIVER DISABLE 1130asfb LT/TP 0799 2K REV B • PRINTED IN USA LINEAR TECHNOLOGY CORPORATION 1993 0.394 – 0.419 (10.007 – 10.643) S28 (WIDE) 0996 LOGIC LT1130A • TA05 ...

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