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L165
July 2003
■OUTPUT CURRENT UP TO 3A
■LARGE COMMON-MODE AND
DIFFERENTIAL MODE RANGES
■SOA PROTECTION
■THERMAL PROTECTION
■± 18V SUPPLY
DESCRIPTION
The L165 is a monolithic integrated circuit in Pen-
tawatt® package, intended for use as power oper-
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.
Pentawatt V
ORDERING NUMBER: L165V
3A POWER OPERATIONAL AMPLIFIER
APPLICATION CIRCUITS
Figure 1. Gain > 10. Figure 2. Unity gain configuration.
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ABSOLUTE MAXIMUM RATINGS
PIN CONNECTION (Top view)
SCHEMATIC DIAGRAM
THERMAL DATA
Symbol Parameter Value Unit
V
S
Supply voltage ± 18 V
V
5
V
4
Upper power transistor V
CE
36 V
V
4
V
3
Lower power transistor V
CE
36 V
V
i
Input voltage V
S
V
j
Differential input voltage ± 15 V
I
o
Peak output current (internally limited) 3.5 A
P
tot
Power dissipation at T
case
= 90°C 20 W
T
stg
, T
j
Storage and junction temperature -40 to 150 °C
Symbol Parameter Value Unit
R
th-j-case
Thermal resistance junction-case max 3 °C/W
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3/9
L165
ELECTRICAL CHARACTERISTCS (V
S
= ± 15 V, T
j
= 25 °C unless otherwise specified)
Symbol Parameter Test Condition Min. Typ. Max. Unit
V
S
Supply Voltage ± 6 ± 18 V
I
d
Quiescent Drain Current V
S
= ±18 V 40 60 mA
I
b
Input Bias Current 0.2 1 µA
V
os
Input Offset Voltage ± 2 ± 10 mV
I
os
Input Offset Current ± 20 ± 200 nA
SR Slew-rate G
v
= 10 8V/µs
G
v
= 1 (°) 6
V
o
Output Voltage Swing f = 1kHz
Ip = 0.3A
I
p
= 3A
27
24
Vpp
f = 10kHz
Ip = 0.3A
I
p
= 3A
27
24
Vpp
R Input Resistance (pin 1) f = 1 KHz 100 500 KΩ
G
v
Voltage Gain (open loop) 80 dB
e
N
Input Noise Voltage B = 10 to 10 000 Hz 2 µV
iNInput Noise Current f = 1 KHz 100 pA
CMR Common-mode Rejection R
g
≤ 10 KΩ; G
V
= 30 dB 70 dB
SVR Supply Voltage Rejection R
g
= 22 KΩ; V
ripple
= 0.5 Vrms
f
ripple
= 100 Hz
G
v
= 10
G
v
= 100
60
40 dB
dB
Efficiency f = 1 kHz; R
L
= 4Ω
I
p
= 1.6 A; P
o
= 5W
I
p
= 1.6 A; P
o
= 18W
70
60 %
%
Tsd Thermal Shut-down Case
Temperature P
tot
= 12 W 110 °C
P
tot
= 6 W 130 °C
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Figure 3. Open loop frequency response.
Figure 4. Closed loop frequency response
(circuit of figure 2).
Figure 5. Large signal frequency response.
Figure 6. Maximum output current vs. voltage
[VCE] across each output transistor.
Figure 7. Safe operating area and collector
characteristics of the protected
power transistor.
Figure 8. Maximum allowable power
dissipation vs. ambient temperature.
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L165
Figure 9. Bidirectional DC motor control with TTL/CMOS/µP compatible inputs.
Figure 10. Motor current control circuit with external power transistors (I
motor
> 3.5A).
Must be V
S2
≥ V
S1
; E1, E2 = logic inputs; V
S1
= logic supply voltage
D1 to D4: V
F
≤ 1.2 @ I = 4A
t
rr
≤ 500ns
Note : The inputvoltage level is compatible with L291 (5-BIT D/A converter).
The transfer function is: IM
Vi
----- R4
Rx R3
------------------=
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Figure 11. High current tracking regulator.
Figure 12. Bidirectional speed control of DC motor (Compensation networks not shown).
A: for ± 18 ≤ V
i
± 32
Note: V
z
must be chosen in order to verify
2 V
i
- V
z
≤ 36V
B: for V
i
≤ ±18V
D1 to D4: V
F
≤ 1.2 @ I = 2A
t
rr
≤ 500ns
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L165
Figure 13. Split power supply.
Figure 14. Power squarewave oscillator with independent adjustments for frequency and duty-cycle.
P1 : duty-cycle adjust
P2 : frequency adjust (f = 700 Hz with C1 = 10 nF, P2 = 100KΩ, f = 25 Hz with C1 = 10 nF, P2 = 0)
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L165
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Weight: 2.00gr
Pentawatt V
DIM. mm inch
MIN. TYP. MAX. MIN. TYP. MAX.
A 4.8 0.189
C 1.37 0.054
D 2.4 2.8 0.094 0.110
D1 1.2 1.35 0.047 0.053
E 0.35 0.55 0.014 0.022
E1 0.76 1.19 0.030 0.047
F 0.8 1.05 0.031 0.041
F1 1.0 1.4 0.039 0.055
G 3.2 3.4 3.6 0.126 0.134 0.142
G1 6.6 6.8 7.0 0.260 0.268 0.276
H2 10.4 0.409
H3 10.05 10.4 0.396 0.409
L 17.55 17.85 18.15 0.691 0.703 0.715
L1 15.55 15.75 15.95 0.612 0.620 0.628
L2 21.2 21.4 21.6 0.831 0.843 0.850
L3 22.3 22.5 22.7 0.878 0.886 0.894
L4 1.29 0.051
L5 2.6 3.0 0.102 0.118
L6 15.1 15.8 0.594 0.622
L7 6.0 6.6 0.236 0.260
L9 2.1 2.7 0.008 0.106
L10 4.3 4.8 0.17 0.189
M 4.23 4.5 4.75 0.167 0.178 0.187
M1 3.75 4.0 4.25 0.148 0.157 0.167
V4 40˚ (typ.)
V5 90˚ (typ.)
Dia 3.65 3.85 0.144 0.152
L
L1
A
C
L5
D1 L2
L3
E
M1
M
D
H3
Dia.
L7
L9
L10
L6
F1 H2
F
GG1
E1
F
E
V4
RESIN BETWEEN
LEADS
H2
V5
V4
PENTVME
L4
0015981
OUTLINE AND
MECHANICAL DATA
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Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences
of use of such information nor for any infringement of patents 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 STMicroelectronics. Specifications mentioned in this publication are subject
to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not
authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics.
STMicroelectronics acknowledges the trademarks of all companies referred to in this document.
The ST logo is a registered trademark of STMicroelectronics
© 2003 STMicroelectronics - All Rights Reserved
STMicroelectronics GROUP OF COMPANIES
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L165
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