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TCM1520A Datasheet(PDF) 2 Page - Texas Instruments

Part # TCM1520A
Description  RING DETECTOR
Download  7 Pages
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

TCM1520A Datasheet(HTML) 2 Page - Texas Instruments

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TCM1520A
DUAL DIFFERENTIAL COMPARATORS
SCTS005B – OCTOBER 1984 – REVISED DECEMBER 1990
2
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
POST OFFICE BOX 1443
HOUSTON, TEXAS 77251–1443
functional block diagram
Current
Sensor
Ring-Signal
Voltage Input
Section
Vref
200
6.8 V
8 k
5-V Series
Regulator
18 k
Transient
Protection
Section
45 V
1A
5
6
4
2
1
8
37
COMMON
COMMON
BELL TAPPING
SENSE
C FILTER
5-V OUTPUT
INVERTING
OUTPUT
AC INPUT
AC INPUT
Regulated
Voltage
Output Section
High-Input Impedance/
Antitapping Section
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Continuous supply voltage at C FILTER (see Note 1)
40 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Continuous differential input voltage, VID (AC INPUT)
40 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Continuous output current at 5-V OUTPUT, IO
12 mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Continuous SCR on-state input current
200 mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SCR on-state input current, II(on) (duration ≤200 µs)
900 mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Continuous total dissipation
See Dissipation Rating Table
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating free-air temperature range, TA
–40
°C to 105°C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature range
– 40
°C to 125°C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds
260
°C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
† Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTE 1: All voltage values, unless otherwise noted, are with respect to COMMON (pin 7).
DISSIPATION RATING TABLE
PACKAGE
TA = 25°C
POWER RATING
OPERATING FACTOR
ABOVE TA = 25°C
TA = 85°C
POWER RATING
D
950 mW
7.6 mW/
°C
494 mW
P
1000 mW
8.0 mW/
°C
520 mW


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