LTC1145CN Linear Technology, LTC1145CN Datasheet

no-image

LTC1145CN

Manufacturer Part Number
LTC1145CN
Description
IC INSULATOR DIGITL LOWPWR 18DIP
Manufacturer
Linear Technology
Datasheet

Specifications of LTC1145CN

Inputs - Side 1/side 2
1/0
Number Of Channels
1
Isolation Rating
2500Vrms, 3000Vrms
Voltage - Supply
4.5 V ~ 5.5 V
Data Rate
200kHz
Output Type
CMOS
Package / Case
*
Operating Temperature
0°C ~ 70°C
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Propagation Delay
-

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
LTC1145CN
Manufacturer:
LINEAR
Quantity:
9 845
APPLICATIO S
TYPICAL APPLICATIO
FEATURE
DATA
UL Recognized
File E151738 to UL1577
Low Input Current
Maximum Input Frequency
TTL Level Output
Noise Filter Prevents Glitches at the Output
Output Can Be Synchronized to an External Clock
Low Power Opto-Isolator Replacement
Isolated Serial Data Interfaces
Isolated Power MOSFET Drivers
IN
LTC1145: 700 A
LTC1146: 70 A
LTC1145: 200kHz
LTC1146: 20kHz
5V
0
f
1
= 100kHz
S
Digital Isolation Interface
Data Rate Up to 200kHz
®
U
1
7
8
9
D
NC
OSC
GND2
IN
ISOLATION
BARRIER
LTC1145
(LTC1145A, LTC1146A)
IN
OS
GND1
D
V
OUT
OUT
LTC1145/46 • TA01
CC
18
12
11
10
U
5V
DATA
OUT
The LTC1145A/LTC1146A provide 2500V
or 3000V
TTL digital/CMOS signals. The LTC1145/LTC1146 are
intended for less stringent applications and are rated for
500V
mere 70 A for the LTC1146 which can handle frequen-
cies up to 20kHz. The faster LTC1145 will handle frequen-
cies up to 200kHz while only drawing 700 A.
The output signal is in phase with the input and swings
between GND2 and V
ible signal without any pull-up resistors. An on-chip
noise filter helps prevent glitches and data errors at the
output, and a pin is provided for synchronizing the output
signal to an external system clock.
D
Low Power Digital Isolator
ESCRIPTIO
OS
D
OUT
D
OUT
RMS
IN
OS
RMS
. Unlike opto-isolators, the input current is a
OUT
AND D
IC Innovation of the Year Winner
(1 second) of input to output isolation for
LTC1145 Typical Waveforms
OUT
LOADED WITH 15pF SCOPE PROBE
U
CC
providing a TTL/CMOS compat-
LTC1145/LTC1146
RMS
LTC1145/6 • TA02
(1minute)
1

Related parts for LTC1145CN

LTC1145CN Summary of contents

Page 1

... OS 10 DATA OUT OUT D OUT OS LTC1145/LTC1146 U RMS (1 second) of input to output isolation for RMS . Unlike opto-isolators, the input current is a providing a TTL/CMOS compat Innovation of the Year Winner LTC1145 Typical Waveforms LTC1145/6 • TA02 AND D LOADED WITH 15pF SCOPE PROBE OUT OUT (1minute) 1 ...

Page 2

... INH V Input Low Voltage INL V Isolation Voltage, LTC1145A ISO Operating Temperature Range ................... Storage Temperature Range ................. – 150 C Lead Temperature (Soldering, 10 sec)................. 300 ORDER PART NUMBER LTC1145CN LTC1145ACN EXT GND2 9 18-LEAD PLASTIC DIP T JMAX unless otherwise noted CONDITIONS 4mA OUT OUT OS ...

Page 3

ELECTRICAL CHARACTERISTICS SYMBOL PARAMETER LTC1146 V Output Low Voltage OL V Output High Voltage OH V Input Low Voltage IL V Input High Voltage IH I Input Current IN I Supply Current Low to ...

Page 4

LTC1145/LTC1146 W U TYPICAL PERFOR A CE CHARACTERISTICS LTC1145 Input Current vs Input Voltage 2 25°C A 2.0 1.8 1.6 1.4 1.2 1.0 0.8 0.6 0 INPUT VOLTAGE (V) LTC1146 Input Current vs ...

Page 5

CTIO S Pin Data Input IN Pin 7 (NC): Not Connected Pin 8 (LTC1145 OSC ): External Frequency Input. The IN signal on this pin overrides the internal oscillator fre- quency. Pin ...

Page 6

LTC1145/LTC1146 CTIO AL DIAGRA S DIE #1 1 DATA INPUT OSCILLATOR 18 GND1 ISOLATION BARRIER U OPERATIO Basic Functionality The LTC1145/LTC1146 consist of two separate die (see Functional Diagram) and two internal 1pF capacitors which provide isolation. ...

Page 7

U OPERATIO OUT NOTE: THE SHADED AREA THE TWO OSCILLATORS NOT SYNCHRONIZED. REFER TO FUNCTIONAL DIAGRAMS. Noise and Glitch Immunity As an example, assume that the digital ...

Page 8

LTC1145/LTC1146 U OPERATIO Internal Capacitors A special lead frame has been designed for the LTC1145/ LTC1146 which includes two die paddles and the isolation capacitors. Each capacitor is formed by three parallel metal fingers spaced about 20 mils apart. The ...

Page 9

TYPICAL APPLICATIO S ISOLATION BARRIER LTC1145 0V 200kHz GND1 GND2 18 Isolated Battery Power Temperature-to-Frequency Converter TYPE K THERMOCOUPLE 6V 100k +V – + “A” LT1025 – GND R 6.81k* C3 0.47 F 100°C ...

Page 10

LTC1145/LTC1146 TYPICAL APPLICATIO 7.45V 74C14 24pF 10k LT1021-5 5V GND OUT V CC LTC1090 ACLK SCLK 8-CHANNEL D IN ANALOG D OUT INPUTS CS 5V REF 10 F SYSTEM GROUND FLOATING ...

Page 11

... OUT 100kHz 9 GND2 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- tation that the interconnection of circuits as described herein will not infringe on existing patent rights Line Monitor 1.35 F 400V ...

Page 12

... MIN 0.045 ± 0.015 0.125 (1.143 ± 0.381) (3.175) 0.100 ± 0.010 MIN (2.540 ± 0.254) : 499-3977 0.065 (1.651) TYP 0.018 ± 0.003 (0.457 ± 0.076) N18 0893 LT/GP 0394 10K • PRINTED IN USA LINEAR TECHNOLOGY CORPORATION 1994 ...

Related keywords