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LTC1146ACN

Description
- 数字隔离器 2500Vrms 或 3000Vrms 1 通道 20kHz - CMTI 18-DIP(0.300",7.62mm),12 引线
CategoryAnalog mixed-signal IC    Isolator chip   
ManufacturerADI
Websitehttps://www.analog.com
Download Datasheet Parametric View All

LTC1146ACN Overview

- 数字隔离器 2500Vrms 或 3000Vrms 1 通道 20kHz - CMTI 18-DIP(0.300",7.62mm),12 引线

LTC1146ACN Parametric

Parameter NameAttribute value
category
MakerADI
seriesLTC
PackagePipe fittings
technology-
type-
Isolated power supply-
Number of channels1
Input - Side 1/Side 21/0
Channel type-
Voltage - Isolation2500Vrms 或 3000Vrms
Common-mode transient immunity (minimum)-
data rate20kHz
Propagation delay tpLH/tpHL (maximum)-
Pulse width distortion (maximum)-
Rise/Fall Time (Typical)-
Voltage - Power supply4.5V ~ 5.5V
Operating temperature0°C ~ 70°C
Package/casing18-DIP(0.300",7.62mm),12 引线
Supplier device packaging18-PDIP
LTC1145/LTC1146
Low Power Digital Isolator
FEATURES
s
s
DESCRIPTIO
s
s
s
s
UL Recognized
®
(LTC1145A, LTC1146A)
File E151738 to UL1577
Low Input Current
LTC1145: 700µA
LTC1146: 70µA
Maximum Input Frequency
LTC1145: 200kHz
LTC1146: 20kHz
TTL Level Output
Noise Filter Prevents Glitches at the Output
Output Can Be Synchronized to an External Clock
The LTC1145A/LTC1146A provide 2500V
RMS
(1minute)
or 3000V
RMS
(1 second) of input to output isolation for
TTL digital/CMOS signals. The LTC1145/LTC1146 are
intended for less stringent applications and are rated for
500V
RMS
. Unlike opto-isolators, the input current is a
mere 70µA for the LTC1146 which can handle frequen-
cies up to 20kHz. The faster LTC1145 will handle frequen-
cies up to 200kHz while only drawing 700µA.
The output signal is in phase with the input and swings
between GND2 and V
CC
providing a TTL/CMOS compat-
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.
IC Innovation of the Year Winner
APPLICATIO S
s
s
s
Low Power Opto-Isolator Replacement
Isolated Serial Data Interfaces
Isolated Power MOSFET Drivers
TYPICAL APPLICATIO
Digital Isolation Interface
Data Rate Up to 200kHz
DATA 5V
IN 0
f
1
= 100kHz
1
18
LTC1145 Typical Waveforms
D
IN
GND1
ISOLATION
BARRIER
7
8
9
LTC1145
NC
OSC
IN
GND2
V
CC
OS
OUT
D
OUT
5V
12
11
10
DATA
OUT
OS
OUT
D
IN
LTC1145/46 • TA01
D
OUT
OS
OUT
AND D
OUT
LOADED WITH 15pF SCOPE PROBE
U
LTC1145/6 • TA02
U
U
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