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TDE1767ADP Schematic ( PDF Datasheet ) - ST Microelectronics

Teilenummer TDE1767ADP
Beschreibung INTERFACE CIRCUIT RELAY AND LAMP-DRIVER
Hersteller ST Microelectronics
Logo ST Microelectronics Logo 




Gesamt 10 Seiten
TDE1767ADP Datasheet, Funktion
TDE1767, A
TDE1787, A
INTERFACE CIRCUIT (RELAY AND LAMP-DRIVER)
OPEN GROUND PROTECTION
HIGH OUTPUT CURRENT
ADJUSTABLE SHORT-CIRCUIT PROTECTION
INTERNAL THERMAL PROTECTION WITH
EXTERNAL RESET
LARGE SUPPLY VOLTAGE RANGE
ALARM OUTPUT
INPUT VOLTAGE CAN BE HIGHER THAN VCC
OUTPUT VOLTAGE CAN BE LOWER THAN
GROUND (VCC - VO VCC[max])
Minidip
DESCRIPTION
The TDE1767, A/TDE1787, A are a monolithic am-
plifiers designed for high current and high voltage
applications, specifically to drive lamps, relays,
stepping motors.
The devices are assentially blow-out proof. The
output is prois protected from short-circuits with the
positive supply or drive. In addition thermal shut
down is provited to keep the IC from overheathing.
If internal dissipation becomes too high, the driver
will shut down to prevent excessive heating. The
output stays null after the overheating is off, if the
reset input is low. If high the output will alternatively
switch-on and off until the overload is removed.
The devices operates over a wide range voltages
from standard 15 V operational amplifier supplies
to the single +6V or +48V used for industrial electric
systems. Input voltages can be higher than in the
VCC.
An alarm output suitable for driving a LED is
provited. This LED, normally on (if referred to
ground), will die out or flash during an overload
depending on the state of the reset input.
The output is low in open ground conditions.
ORDERING NUMBERS : TDE1767 DP
TDE1767 ADP
TDE1787 DP
TDE1787 ADP
PIN CONNECTION (top view)
THERMAL DATA
Symbol
Parameter
Rth (j - c)
Rth (j - a)
Maximum Junction-case Thermal Resistance
Maximum Junction-ambient Thermal Resistence
* Devices bonded on a 40 cm2 glass-epoxy printed circuit 0.15 cm thick with 4 cm2 of copper.
March 1993
Value
30
80
Unit
°C/W
°C/W
1/10






TDE1767ADP Datasheet, Funktion
TDE1767,A-TDE1787,A
TYPICAL APPLICATION
Figure 13. Open Load Detection.
Figure 14. Driving Lamps, Relays, Etc...
Figure 15. Common Reset.
6/10

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