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參數資料
| 型號： | LTC1531 |
| 廠商： | Linear Technology Corporation |
| 英文描述： | Self-Powered Isolated Comparator |
| 中文描述： | 自供電隔離比較 |
| 文件頁數： | 1/16頁 |
| 文件大小： | 266K |
| 代理商： | LTC1531 |
1
LTC1531
Self-Powered Isolated
Comparator
I
UL Recognized File E151738 to UL1577
I
Self-Powered Across Isolation Barrier
I
2500V
RMS
Isolation
I
2.5V Isolated Reference, I
LOAD
= 5mA
MAX
I
Zero-Cross Output for Line Power
I
Dual Differential Input Comparator
I
High Input Impedance Comparator
The LTC
1531 is an isolated self-powered dual differential
comparator. An internal capacitive isolation barrier pro-
vides 2500V
RMS
of isolation between the comparator and
its output. The part provides UL-rated isolated compari-
sons without the need for an isolated supply since both
comparator power and output data are transmitted across
the capacitive barrier. The comparator data is transferred
differentially across the isolation barrier to provide high
common mode voltage and noise immunity.
The isolated side can supply a 2.5V reference output to
power external sensor circuits such as a thermistor bridge.
The dual differential comparator inputs allow for compari-
son of two differential voltages as well as single-ended
voltages. The powered side provides a latched data output
as well as a pulsed zero-cross comparator output for
controlling a triac. The part is available in a 28-lead SO
package.
Isolated Thermistor Temperature Controller
, LTC and LT are registered trademarks of Linear Technology Corporation.
I
Self-Powered Isolated Sensing
I
Isolated Temperature Control
I
Isolated Voltage Monitor
I
Isolated Switch Control
FEATURES
DESCRIPTIOU
APPLICATIU
TYPICAL APPLICATIO
N
U
–5.6V
5.6V
AC
120V
NEUTRAL
2N2222
LOAD
25
TECCOR
Q4008L4
OR EQUIVALENT
ISOGND
V1
ISOLATION
BARRIER
1531 TA01
VALID
GND
390
R5*1M
R
THERM
=
R
B (1/T – 1/T
O
)
B = 3807
T
O
= 297
°
K
2.5V
20
μ
F
50V
1
μ
F
T
LTC1531
R2
47k
R1
680k
150
750
0.5W
+
–
THERM
30k
YSI 44008
R4
50k
V
PW
V
CC
SHDN
CMPOUT
V
REG
ZCDATA
ZCPOS
ZCNEG
DATA
LED
1k
Q D
C1
0.01
μ
F
3k
3W
1N4004
+
100
μ
F
+
+
1
1
1
1
*HYSTERESIS = 1
°
C AT T
O
= ISOLATED GROUND
1
V3
V4
V2
R6
22k
DANGER!
LETHAL VOLTAGES
IN THIS SECTION!
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相關代理商/技術參數 |
參數描述 |
|---|---|
| LTC1531CSW | 功能描述:IC COMP ISOLATED SLF-PWRD 28SOIC RoHS:否 類別:集成電路 (IC) >> 線性 - 比較器 系列:- 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,500 系列:- 類型:通用 元件數:1 輸出類型:CMOS，推挽式，滿擺幅，TTL 電壓 - 電源，單路/雙路(±):2.5 V ~ 5.5 V，±1.25 V ~ 2.75 V 電壓 - 輸入偏移（最小值）:5mV @ 5.5V 電流 - 輸入偏壓（最小值）:1pA @ 5.5V 電流 - 輸出（標準）:- 電流 - 靜態（最大值）:24µA CMRR, PSRR（標準）:80dB CMRR，80dB PSRR 傳輸延遲（最大）:450ns 磁滯:±3mV 工作溫度:-40°C ~ 85°C 封裝/外殼:6-WFBGA，CSPBGA 安裝類型:表面貼裝 包裝:管件 其它名稱:Q3554586 |
| LTC1531CSW#PBF | 功能描述:IC COMP ISOLATED SLF-PWRD 28SOIC RoHS:是 類別:集成電路 (IC) >> 線性 - 比較器 系列:- 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,500 系列:- 類型:通用 元件數:1 輸出類型:CMOS，推挽式，滿擺幅，TTL 電壓 - 電源，單路/雙路(±):2.5 V ~ 5.5 V，±1.25 V ~ 2.75 V 電壓 - 輸入偏移（最小值）:5mV @ 5.5V 電流 - 輸入偏壓（最小值）:1pA @ 5.5V 電流 - 輸出（標準）:- 電流 - 靜態（最大值）:24µA CMRR, PSRR（標準）:80dB CMRR，80dB PSRR 傳輸延遲（最大）:450ns 磁滯:±3mV 工作溫度:-40°C ~ 85°C 封裝/外殼:6-WFBGA，CSPBGA 安裝類型:表面貼裝 包裝:管件 其它名稱:Q3554586 |
| LTC1531CSW#TR | 功能描述:IC COMP DIFF DUAL SELFPWR 28SOIC RoHS:否 類別:集成電路 (IC) >> 線性 - 比較器 系列:- 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,500 系列:- 類型:通用 元件數:1 輸出類型:CMOS，推挽式，滿擺幅，TTL 電壓 - 電源，單路/雙路(±):2.5 V ~ 5.5 V，±1.25 V ~ 2.75 V 電壓 - 輸入偏移（最小值）:5mV @ 5.5V 電流 - 輸入偏壓（最小值）:1pA @ 5.5V 電流 - 輸出（標準）:- 電流 - 靜態（最大值）:24µA CMRR, PSRR（標準）:80dB CMRR，80dB PSRR 傳輸延遲（最大）:450ns 磁滯:±3mV 工作溫度:-40°C ~ 85°C 封裝/外殼:6-WFBGA，CSPBGA 安裝類型:表面貼裝 包裝:管件 其它名稱:Q3554586 |
| LTC1531CSW#TRPBF | 功能描述:IC COMP ISOLATED SLF-PWRD 28SOIC RoHS:是 類別:集成電路 (IC) >> 線性 - 比較器 系列:- 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,500 系列:- 類型:通用 元件數:1 輸出類型:CMOS，推挽式，滿擺幅，TTL 電壓 - 電源，單路/雙路(±):2.5 V ~ 5.5 V，±1.25 V ~ 2.75 V 電壓 - 輸入偏移（最小值）:5mV @ 5.5V 電流 - 輸入偏壓（最小值）:1pA @ 5.5V 電流 - 輸出（標準）:- 電流 - 靜態（最大值）:24µA CMRR, PSRR（標準）:80dB CMRR，80dB PSRR 傳輸延遲（最大）:450ns 磁滯:±3mV 工作溫度:-40°C ~ 85°C 封裝/外殼:6-WFBGA，CSPBGA 安裝類型:表面貼裝 包裝:管件 其它名稱:Q3554586 |
| LTC1531IS8 | 制造商:Linear Technology 功能描述:Self-Powered Isolated Comparator |
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