ST L165 Operation Manual
■ OUTPUT CURRENT UP TO 3A
■ LARGE COMMON-MODE AND
DIFFERENTIAL MODE RANGES
■ SOA PROTECTIO N
■ THERMAL PROT EC T I O N
■ ± 18V SUPPLY
L165
3A POWER OPERATIONAL AMPLIFIER
DESCRIPTION
Pentawatt V
The L165 is a monolithic integrated c ircuit in Pentawatt® package, intended for use as power oper-
ORDERING NUMB ER: L165 V
ational amplifier in a wide range of applications,
including servo amplifiers and power supplies. The
high gain and high output power capability provide
superiore performance wherever an operational
amplifier/power booster combination is required.
APPLICATION CIRCUITS
Figure 1. Gain > 10. Figure 2. Unity gain configuration.
July 2003
1/9
L165
ABSOLUTE MAXIMUM RATINGS
Symbol Parameter Value Unit
V
V
5 V4
V
4 V3
V
V
I
o
P
tot
T
stg
PIN CONNECTION (Top view )
Supply voltage ± 18 V
S
Upper power transistor V
Lower power transistor V
Input voltage V
i
Differential input voltage ± 15 V
j
CE
CE
36 V
36 V
S
Peak output current (internally limited) 3.5 A
Power dissipation at T
= 90°C 20 W
case
, TjStorage and junction temperature -40 to 150 °C
SCHEMATIC DIAGRAM
THERMA L D ATA
Symbol Parameter Value Unit
R
th-j-case
Thermal resistance junction-case max 3 °C/W
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ELECTRICAL CHARACTERISTCS (VS = ± 15 V, Tj = 25 °C unless otherwise specified)
Symbol Parameter Test Condition Min. Typ. Max. Unit
V
Supply Voltage ± 6 ± 18 V
S
I
Quiescent Drain Current VS = ±18 V 40 60 mA
d
Input Bias Current 0.2 1 µA
I
b
V
SR Slew-rate
CMR Common-mode Rejection R
SVR Supply Voltage Rejection R
T
Input Offset Voltage ± 2 ± 10 mV
os
I
Input Offset Current ± 20 ± 200 nA
os
8V/µs
27
24
27
24
Output Voltage Swing
V
o
G
= 10
v
= 1 (°) 6
G
v
f = 1kHz
I
p = 0.3A
I
= 3A
p
f = 10kHz
p = 0.3A
I
I
= 3A
p
R Input Resistance (pin 1) f = 1 KHz 100 500 KΩ
G
Voltage Gain (open loop) 80 dB
v
Input Noise Voltage B = 10 to 10 000 Hz 2 µV
e
N
i
Input Noise Current f = 1 KHz 100 pA
N
≤ 10 KΩ; GV = 30 dB 70 dB
g
Efficiency f = 1 kHz; R
Thermal Shut-down Case
sd
Temperature
= 22 KΩ; V
g
f
= 100 Hz
ripple
Ip = 1.6 A; Po = 5W
I
= 1.6 A; Po = 18W
p
P
= 12 W 110 °C
tot
= 6 W 130 °C
P
tot
ripple
= 4Ω
L
= 0.5 Vrms
G
= 10
v
G
= 100
v
60
40
70
60
L165
Vpp
Vpp
dB
dB
%
%
3/9
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