L149 ,4A LINEAR DRIVERL1494A LINEAR DRIVERHIGH OUTPUT CURRENT (4A peak)HIGH CURRENT GAIN (10.000 typ.)OPERATION UP TO ± 2 ..
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L14G1 ,HERMETIC SILICON PHOTOTRANSISTOR
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L149
4A LINEAR DRIVER
L1494A LINEAR DRIVER
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)
DESCRIPTIONThe 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.
March 1993
ABSOLUTE MAXIMUM RATINGS
TEST CIRCUIT1/6
CONNECTION DIAGRAM (top view)
SCHEMATIC DIAGRAM
L149
Figure 1. High slew-rate power operational amplifier (SR = 13V/μμs)
THERMAL DATA
ELECTRICAL CHARACTERISTICS (Tj = 25 °C, Vs = ± 16V)
APPLICATION INFORMATION
L149
Figure 2. Maximum saturation voltage vs.
output current. Figure 3. Current limiting characteristics.
Figure 4: Supply voltage rejection vs.
frequency.
Figure 5: Distorsion vs. output power (f = 1KHz).
Figure 6. Distorsion vs. output power
(f = 1KHz).
Figure 7. Output power vs. supply voltage.
L149
PENTAWATT PACKAGE MECHANICAL DATA
L149
. However, SGS-THOMSON Microelectronics assumes no responsibility for the
or other rights of third parties which may result from its use. No
license is granted by implication or otherwise under any patent or patent rights of SGS-THOMSON Microelectronics. Specifications mentioned
in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied.
SGS-THOMSON Microelectronics products are not authorized for use as critical components in life support devices or systems without express
written approval of SGS-THOMSON Microelectronics.
© 1994 SGS-THOMSON Microelectronics - All Rights Reserved
SGS-THOMSON Microelectronics GROUP OF COMPANIES
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L149
