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STMicroelectronics Electronic Components Datasheet


L149

4A LINEAR DRIVER



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L149 pdf
HIGH OUTPUT CURRENT (4A peak)
HIGH CURRENT GAIN (10.000 typ.)
OPERATION UP TO ± 20 V
THERMAL PROTECTION
SHORT CIRCUIT PROTECTION
OPERATION WITHIN SOA
HIGH SLEW-RATE (30 V/µs)
DESCRIPTION
The L149 is a general purpose power booster in
Pentawatt ® package consisting of a quasi-com-
plentary darlington output stage with the associ-
ated biasing system an inhibit facility.
The device is particularly suited for use with an ope-
rational amplifier inside a closed loop configuration
to increase output current.
ABSOLUTE MAXIMUM RATINGS
Symbol
Vs
Vi
V5 - V4
V4 - V3
Io
Iο
VINH
Parameter
Supply Voltage
Input Voltage
Upper Power Transistor VCE
Lower Power Transistor VCE
DC Output Current
Peak Output Current (internally limited)
Input Inhibit Voltage
Ptot Total Power Dissipation at Tcase = 75 °C)
TEST CIRCUIT
L149
4A LINEAR DRIVER
Pentawatt®
ORDER CODE : L149V
Value
±20
40
40
3
4
- Vs + 5
- Vs - 1.5
25
Unit
V
Vs
V
V
A
A
V
V
W
March 1993
1/6



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L149 pdf
L149
CONNECTION DIAGRAM (top view)
SCHEMATIC DIAGRAM
2/6



Part Number L149
Description 4A LINEAR DRIVER
Maker STMicroelectronics - STMicroelectronics
Total Page 6 Pages
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