TCM1512BP

Manufacturer Part NumberTCM1512BP
ManufacturerTexas Instruments, Inc.
TCM1512BP datasheet
 


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Electronic Replacement for
Electromechanical Telephone Bell When
Used With Transducer
Designed to Meet or Exceed FCC Part 68
Class B Ringer Requirements
Low-Cost External Component
Requirements
Low External Component Count
High Standby Input Impedance
1 M Typ
Low Ringer Equivalency Number
< 1 Typ
Single-Ended High-Voltage Output
Compatible With Piezo Transducer or
Transformer-Coupled Speaker
Reliable BIDFET
Process Technology
Provides Efficient High-Voltage Operation
On-Chip High-Voltage Full-Wave Diode
Bridge Rectifier and Output Voltage
Regulator
On-Chip Circuitry Provides Ring Rejection
of Rotary Dial Transients, Lightning, and
Induced High-Voltage Transients
On-Chip Thyristor Coupled With Additional
External Components Provides Enhanced
Rejection of Dial Pulses
TCM1501B, TCM1512B, and TCM1506B Are
Improved Direct Replacements for
TCM1501A, TCM1512A, and TCM1506A,
Respectively
Requires Only a Single-Value Oscillator
Resistor (Eliminates Binning Codes of the
TCM15xxA Series)
description
The TCM1501B, TCM1506B, TCM1512B, TCM1531, TCM1532, TCM1536, and TCM1539 are monolithic
integrated circuit telephone tone-ringer drivers that, when coupled with an appropriate transducer, replace the
electromechanical bell. These devices are designed using BIDFET technology for use with either a Piezo
transducer or an inexpensive transformer-coupled speaker to produce a pleasing tone composed of a high
frequency (f
) alternating with a low frequency (f
H
activated by the telephone line ring voltage, which may vary from 40 Vrms to 150 Vrms at frequencies from
15.3 Hz to 68 Hz.
Caution. These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive
foam during storage or handling to prevent electrostatic damage to the MOS gates.
‡ BIDFET – Bipolar, double-diffused, N-channel and P-channel MOS transistors on the same chip – patented process.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
TCM1501B, TCM1506B, TCM1512B
TCM1531, TCM1532, TCM1536, TCM1539
TELEPHONE TONE-RINGER DRIVERS
AC INPUT
DRIVER OUTPUT
ANTITAPPING IN
OSCR
† Antitapping output for TCM1531, TCM1532, TCM1536, and
TCM1539. Internal zener bypass for B-suffix versions.
Phone Line, AC
TYPICAL CHARACTERISTICS
TELEPHONE TONE RINGER DRIVER FAMILY
NORMAL OUTPUT
PART NO.
TCM1501B,
TCM1531
TCM1512B,
TCM1532
TCM1506B,
TCM1536
TCM1539
) resulting in a warble tone. Each device is powered and
L
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
POST OFFICE BOX 1443
HOUSTON, TEXAS 77251–1443
SCTS020 – MARCH 1986 – REVISED APRIL 1987
P PACKAGE
(TOP VIEW)
AC INPUT
1
8
COMMON
2
7
C FILTER
3
6
ANTITAPPING OUT/
4
5
INTERNAL ZENER
BYPASS
Bell/Tone
Ringer
Transducer
NORMAL
WARBLE
CENTER
WARBLE
RATIO
FREQUENCY
FREQ.
(f H :f L )
(Hz)
(Hz)
2000
8:7
7.8
1250
8:7
9.8
500
5:4
7.8
2000
5:4
31.2
Copyright
1987, Texas Instruments Incorporated
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TCM1512BP Summary of contents