TDE1787A - STMicroelectronics - Datasheet.Directory

TDE1767, A

TDE1787, A

INTERFACE CIRCUIT (RELAY AND LAMP-DRIVER)

March 1993

OPEN GROUND PROTECTION

HIGH OUTPUT CURRENT

ADJUSTABLESHORT-CIRCUIT PROTECTION

INTERNAL THERMAL PROTECTION WITH

EXTERNALRESET

LARGE SUPPLYVOLTAGERANGE

ALARMOUTPUT

INPUTVOLTAGECAN BE HIGHER THAN VCC

OUTPUT VOLTAGE CAN BE LOWER THAN

GROUND (VCC -V

O≤V

CC[max])

DESCRIPTION

The TDE1767,A/TDE1787, Aare a monolithic am-

plifiers designed for high current and high voltage

applications, specifically to drive lamps, relays,

steppingmotors.

The devices are assentially blow-out proof. The

output is prois protectedfromshort-circuitswith the

positive supply or drive. In addition thermal shut

down is provitedto keepthe IC fromoverheathing.

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 hightheoutputwillalternatively

switch-on and off until the overloadis removed.

The devices operates over a wide range voltages

from standard 15 V operational amplifier supplies

to thesingle +6V or+48Vusedforindustrialelectric

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 groundconditions.

PIN CONNECTION (top view)

Symbol Parameter Value Unit

Rth (j- c) Maximum Junction-case Thermal Resistance 30 °C/W

Rth (j -a) Maximum Junction-ambient Thermal Resistence 80 °C/W

THERMAL DATA

* Devices bonded ona 40cm2 glass-epoxy printed circuit 0.15 cm thick with 4 cm2 of copper.

Minidip

ORDERING NUMBERS : TDE1767 DP

TDE1767 ADP

TDE1787 DP

TDE1787 ADP

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SCHEMATIC DIAGRAM

EQUIVALENTSCHEMATIC

Symbol Parameter TDE1767A/TDE1787A TDE1767/TDE1787 Unit

VCC Supply Voltage 60 50 V

VID Input Differential Voltage 60 50 V

VlInput Voltage - 10 to + 60 - 10 to + 50 V

IOOutput Current 1.3 1.2 A

Vl(reset) Reset Input Voltage - 0.5 to + 60 - 0.5 to + 50 V

IOA Alarm Output Current - 10 to + 20 - 10 to + 20 mA

Ptot Power Dissipation Internally Limited mW

Toper Operating Ambient Temperature

Range -25to+85 -25to+85 °C

stg Storage Temperature Range - 65 to + 150 - 65 to + 150 °C

ABSOLUTE MAXIMUM RATINGS

TDE1767,A-TDE1787,A

ELECTRICAL CHARACTERISTICS (Unless otherwise specified)

TDE1767A:-25°C≤T

amb ≤+85°C, + 6 V ≤VCC ≤+55V,I

o≤500 mA, Tj≤+ 150°C

TDE1767:-25°C≤T

amb ≤+85°C, + 6 V ≤VCC ≤+45V,Io≤500mA, Tj≤+150°C

TDE1787A:-25°C≤T

amb ≤+85°C, + 6 V ≤VCC ≤+55V,I

o≤300 mA, Tj≤+ 150°C

TDE1767A:-25°C≤T

amb ≤+85°C, + 6 V ≤VCC ≤+45V,I

o≤300 mA, Tj≤+ 150°C

Symbol Parameter Min. Typ. Max. Unit

VIO Input Offset Voltage - (note 1) 2 50 mV

ICC Power Supply Current (measuredon pin 4) mA

Output High (Tamb =+25°C) - 5.8 8

Output High (VCC =V

CC(max),T

j= + 150 °C) -57

Output Low (VCC =V

CC(max),T

amb =+25°C) - 1.5 4

IIB Input Bias Current - 15 100 µA

VCM Common-mode Input VoltageRange TDE1787A, TDE1767A

TDE1787, TDE1767 1

-60

45 V

VlInput Voltage Range (Vref ≥+1V)

(figure 1, note 2) TDE1787A, TDE1767A

TDE1787, TDE1767 0

-60

45 V

ISC Short-circuit Output Current

(VCC = + 35 V,t = 10 ms) mA

RSC = 0.22 Ω

RSC = 0.33 ΩTDE1767A

TDE1787A -

-700

380 -

Vsense Output Limit Sense Voltage: VO=V

CC - 2 V,t = 10ms

(VO=V

CC -2V) :VO= 0 V, t = 10 ms 130

120 150

140 170

165 mV

VO(sat) Output Saturation Voltage (output high Vl+-V

- ≥50 mV,

RSC =0,V

CC =+30V) V

=+25°C

j= + 150 °C

TDE1787A, TDE1767A

TDE1787, TDE1767

TDE1787A, TDE1767A

TDE1787, TDE1767

1.1

1.2

1.3

IOL Output Leakage Current (output low) - - 100 µA

IAAvailable Alarm Output Current

Output Source Current (VAH = VCC - 2.5 V)

Output Slnk Current(in thermal shut-down) VA= 1.4 V -4

5-5

10 -

Ireset Reset Input Current - 2 40 µA

Vth (reset) Reset Threshold - 1.4 - V

- Output Leakage Current (open ground) - 10 - µA

Figure1.

Notes: 1. The offset voltage given is the maximum valueof different input voltagereguired 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.

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TDE1767,A-TDE1787,A

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Figure 2. PEAK SHORT-CIRCUIT vs

LIMITING RESISTOR. Figure 3. AVAILABLE OUTPUT CURRENT vs

LIMITINGRESISTOR.

Figure 4. POWER SUPPLYCURRENT (pin 4). Fig.ure 5. OUTPUT SATURATION VOLTAGE vs

OUTPUT CURRENT.

Figure 6. OUTPUT TRANSISTOR

SAFE OPERATING AREA (pulsed)Figure 7. NORMAL OPERATING AREA

(short circuit protected)

TDE1767,A-TDE1787,A

Figure 8. CURRENT SINKING. Figure 9. CURRENT SOURCING

Figure 10. REPONSE TIME Figure 11. REPONSE TIME

Figure 12 : TestCircuit.

ALARM OUTPUT CAPABILITY CURRENT

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TDE1767,A-TDE1787,A

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TYPICAL APPLICATION

Figure 13. Open Load Detection.

Figure14. Driving Lamps,Relays, Etc...

Figure 15. Common Reset.

TDE1767,A-TDE1787,A

Figure 16. Parallel Driving of Loads Up to 1 A.

USING ALARM OUTPUT

Figure17. ParallelAlarm Outputs.

Figure 18. Ledto VCC. Figure19. Led to Ground.

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TDE1767,A-TDE1787,A

Figure 20. Interface between High oltage and Low Voltage System.

Figure 21. IncreasingCurrent Up to 10 A.

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TDE1767,A-TDE1787,A

DIM. mm inch

MIN. TYP. MAX. MIN. TYP. MAX.

A 3.32 0.131

a1 0.51 0.020

B 1.15 1.65 0.045 0.065

b 0.356 0.55 0.014 0.022

b1 0.204 0.304 0.008 0.012

D 10.92 0.430

E 7.95 9.75 0.313 0.384

e 2.54 0.100

e3 7.62 0.300

e4 7.62 0.300

F 6.6 0.260

I 5.08 0.200

L 3.18 3.81 0.125 0.150

Z 1.52 0.060

MINIDIP PACKAGE MECHANICAL DATA

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TDE1767,A-TDE1787,A

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license is granted by implication or otherwise under any patent or patent rights of SGS-THOMSON Microelectronics. Specifications mentioned

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written approval of SGS-THOMSON Microelectronics.

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TDE1767,A-TDE1787,A