LAMP-DRIVER. TDE1787A Datasheet

TDE1787A Datasheet PDF


TDE1787A
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


Part TDE1787A
Description INTERFACE CIRCUIT RELAY AND LAMP-DRIVER
Feature TDE1787A; TDE1767, A TDE1787, A INTERFACE CIRCUIT (RELAY AND LAMP-DRIVER) OPEN GROUND PROTECTION HIGH OUTPUT C.
Manufacture ST Microelectronics
Datasheet
Download TDE1787A Datasheet


TDE1767, A TDE1787, A INTERFACE CIRCUIT (RELAY AND LAMP-DRIV TDE1787A Datasheet





TDE1787A
TDE1767,A-TDE1787,A
ABSOLUTE MAXIMUM RATINGS
Symbol
VCC
VID
Vl
IO
Vl(reset)
IOA
Ptot
Toper
T stg
Parameter
Supply Voltage
Input Differential Voltage
Input Voltage
Output Current
Reset Input Voltage
Alarm Output Current
Power Dissipation
Operating Ambient Temperature
Range
Storage Temperature Range
SCHEMATIC DIAGRAM
TDE1767A/TDE1787A
TDE1767/TDE1787
60 50
60 50
- 10 to + 60
- 10 to + 50
1.3 1.2
- 0.5 to + 60
- 0.5 to + 50
- 10 to + 20
- 10 to + 20
Internally Limited
- 25 to + 85
- 25 to + 85
- 65 to + 150
- 65 to + 150
Unit
V
V
V
A
V
mA
mW
°C
°C
EQUIVALENT SCHEMATIC
2/10



TDE1787A
Figure 1.
TDE1767,A-TDE1787,A
ELECTRICAL CHARACTERISTICS (Unless otherwise specified)
TDE1767A: - 25 °C Tamb + 85°C, + 6 V VCC + 55 V, Io 500 mA, Tj + 150°C
TDE1767: - 25 °C Tamb + 85°C, + 6 V VCC + 45 V, Io 500 mA, Tj + 150°C
TDE1787A: - 25 °C Tamb + 85°C, + 6 V VCC + 55 V, Io 300 mA, Tj + 150°C
TDE1767A: - 25 °C Tamb + 85°C, + 6 V VCC + 45 V, Io 300 mA, Tj + 150°C
Symbol
VIO
ICC
IIB
VCM
Vl
ISC
Vsense
VO(sat)
IOL
IA
Ireset
Vth (reset)
-
Parameter
Input Offset Voltage - (note 1)
Power Supply Current (measured on pin 4)
Output High (Tamb = + 25 °C)
Output High (VCC = VCC(max), Tj = + 150 °C)
Output Low (VCC = VCC(max), Tamb = + 25 °C)
Input Bias Current
Common-mode Input Voltage Range
TDE1787A, TDE1767A
TDE1787, TDE1767
Input Voltage Range (Vref + 1 V)
(figure 1, note 2)
TDE1787A, TDE1767A
TDE1787, TDE1767
Short-circuit Output Current
(VCC = + 35 V, t = 10 ms)
RSC = 0.22
RSC = 0.33
TDE1767A
TDE1787A
Output Limit Sense Voltage : VO = VCC - 2 V, t = 10ms
(VO = VCC - 2 V)
: VO = 0 V, t = 10 ms
Output Saturation Voltage (output high Vl+ - Vl- 50 mV,
RSC = 0, VCC = + 30 V)
Tj= + 25°C
Tj = + 150 °C
TDE1787A, TDE1767A
TDE1787, TDE1767
TDE1787A, TDE1767A
TDE1787, TDE1767
Output Leakage Current (output low)
Available Alarm Output Current
Output Source Current (VAH = VCC - 2.5 V)
Output Slnk Current (in thermal shut-down) VA = 1.4 V
Reset Input Current
Reset Threshold
Output Leakage Current (open ground)
Min.
-
-
-
-
1
1
0
0
-
-
130
120
-
-
-
-
-
-4
5
-
-
-
Typ.
2
Max.
50
5.8 8
57
1.5 4
15 100
- 60
- 45
- 60
- 45
700 -
380 -
150 170
140 165
1 1.1
1 1.2
1.1 1.2
1.1 1.3
- 100
-5 -
10 -
2 40
1.4 -
10 -
Unit
mV
mA
µA
V
V
mA
mV
V
µA
mA
µA
V
µA
Notes: 1. The offset voltage given is the maximum value of different input voltage reguired to drive the output voltage whitin 2 V of the
ground or the supply voltage.
2. Input voltage range is indipendent of the supply voltage.
3/10




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