SGS Thomson Microelectronics L149 Datasheet
HIGH OUTPUT CURRENT (4A peak)
HIGH CURRENT GAIN (10.000 typ. )
OPERA TION UP TO ± 20 V
THERMAL PROTECTION
SHOR T CIR CUIT PROTECTI O N
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-complentary darlington output stage with the associated biasing system an inhibit facility.
The device is particularly suited for use wit h an operational amplifier inside a closed loop configurat ion
to increase output current.
4A LINEAR DRIVER
Pentawatt
ORDER CODE : L149V
L149
®
ABSOLUTE MAXIMUM RATINGS
Symbol Parameter Value Unit
V
s
V
V5 - V
- V
V
4
I
o
I
ο
V
INH
P
tot
i
Supply Voltage
Input Voltage V
Upper Power Transistor VCE 40 V
4
Lower Power Transistor V
3
DC Output Current 3 A
Peak Output Current (internally limited) 4 A
Input Inhibit Voltage - Vs + 5
Total Power Dissipation at T
CE
= 75 °C)
case
±20
40 V
- Vs - 1.5
25 W
TEST CIRCUIT
V
s
V
V
March 1993
1/6
L149
CONNECT IO N DIAG RA M (top view)
SCHEMATIC DIAGRAM
2/6
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