Download 3A power operational amplifier

L165
3A POWER OPERATIONAL AMPLIFIER
■
■
■
■
■
OUTPUT CURRENT UP TO 3A
LARGE COMMON-MODE AND
DIFFERENTIAL MODE RANGES
SOA PROTECTION
THERMAL PROTECTION
± 18V SUPPLY
u
d
o
DESCRIPTION
Pentawatt V
The L165 is a monolithic integrated circuit in Pentawatt® package, intended for use as power operational 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.
t
c
u
)
(s
)
s
(
ct
r
P
e
ORDERING NUMBER: L165V
t
e
l
o
s
b
O
Figure 2. Unity gain configuration.
d
o
r
P
e
t
e
l
o
s
b
O
July 2003
1/9
L165
ABSOLUTE MAXIMUM RATINGS
Symbol
VS
Parameter
Value
Unit
± 18
V
Supply voltage
V5 V4
Upper power transistor VCE
36
V
V4 V3
Lower power transistor VCE
36
V
Vi
Input voltage
VS
Vj
Differential input voltage
± 15
V
Io
Peak output current (internally limited)
3.5
A
Ptot
Power dissipation at Tcase = 90°C
20
W
Tstg, Tj
Storage and junction temperature
-40 to 150
°C
)
s
(
ct
PIN CONNECTION (Top view)
u
d
o
r
P
e
t
e
l
o
)
(s
s
b
O
t
c
u
SCHEMATIC DIAGRAM
d
o
r
P
e
t
e
l
o
s
b
O
THERMAL DATA
Symbol
Rth-j-case
2/9
Parameter
Thermal resistance junction-case
max
Value
Unit
3
°C/W
L165
ELECTRICAL CHARACTERISTCS (VS = ± 15 V, Tj = 25 °C unless otherwise specified)
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
±6
VS
Supply Voltage
Id
Quiescent Drain Current
Ib
Input Bias Current
VS = ±18 V
Unit
± 18
V
40
60
mA
0.2
1
µA
Vos
Input Offset Voltage
±2
± 10
mV
Ios
Input Offset Current
± 20
± 200
nA
SR
Slew-rate
Vo
Output Voltage Swing
Gv = 10
8
Gv = 1 (°)
6
V/µs
Vpp
f = 1kHz
Ip = 0.3A
Ip = 3A
u
d
o
f = 10kHz
Ip = 0.3A
r
P
e
Ip = 3A
R
Input Resistance (pin 1)
Gv
Voltage Gain (open loop)
eN
Input Noise Voltage
B = 10 to 10 000 Hz
iN
Input Noise Current
f = 1 KHz
CMR
Common-mode Rejection
Rg ≤ 10 KΩ; GV = 30 dB
SVR
Supply Voltage Rejection
Rg = 22 KΩ; Vripple = 0.5 Vrms
fripple = 100 Hz
Gv = 10
Gv = 100
o
r
P
du
Thermal Shut-down Case
Temperature
Tsd
e
t
e
ol
f = 1 KHz
100
27
24
500
Vpp
KΩ
80
dB
2
µV
100
pA
70
dB
60
40
dB
dB
70
60
%
%
Ptot = 12 W
110
°C
Ptot = 6 W
130
°C
)-
t
e
l
o
s
b
O
s
(
t
c
Efficiency
)
s
(
ct
27
24
f = 1 kHz; RL = 4Ω
Ip = 1.6 A; Po = 5W
Ip = 1.6 A; Po = 18W
s
b
O
3/9
L165
Figure 3. Open loop frequency response.
Figure 6. Maximum output current vs. voltage
[VCE] across each output transistor.
)
s
(
ct
Figure 4. Closed loop frequency response
(circuit of figure 2).
u
d
o
r
P
e
Figure 7. Safe operating area and collector
characteristics of the protected
power transistor.
t
e
l
o
)
(s
s
b
O
t
c
u
d
o
r
P
e
t
e
l
o
Figure 5. Large signal frequency response.
bs
O
4/9
Figure 8. Maximum allowable power
dissipation vs. ambient temperature.
L165
Figure 9. Bidirectional DC motor control with TTL/CMOS/µP compatible inputs.
Must be VS2 ≥ VS1; E1, E2 = logic inputs;
)
s
(
ct
VS1 = logic supply voltage
u
d
o
Figure 10. Motor current control circuit with external power transistors (Imotor > 3.5A).
r
P
e
t
e
l
o
)
(s
s
b
O
t
c
u
d
o
r
P
e
D1 to D4: VF ≤ 1.2 @ I = 4A
trr ≤ 500ns
Note : The inputvoltage level is compatible with L291 (5-BIT D/A converter).
t
e
l
o
s
b
O
IM
R4 The transfer function is: ----= ----------------Rx R 3
Vi
5/9
L165
Figure 11. High current tracking regulator.
)
s
(
ct
u
d
o
r
P
e
A: for ± 18 ≤ Vi ± 32
Note: Vz must be chosen in order to verify
2 Vi - Vz ≤ 36V
B: for Vi ≤ ±18V
)
(s
t
c
u
t
e
l
o
s
b
O
Figure 12. Bidirectional speed control of DC motor (Compensation networks not shown).
d
o
r
P
e
t
e
l
o
s
b
O
D1 to D4: VF ≤ 1.2 @ I = 2A
trr ≤ 500ns
6/9
L165
Figure 13. Split power supply.
)
s
(
ct
u
d
o
Figure 14. Power squarewave oscillator with independent adjustments for frequency and duty-cycle.
r
P
e
t
e
l
o
)
(s
s
b
O
t
c
u
d
o
r
P
e
t
e
l
o
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)
s
b
O
7/9
L165
DIM.
A
C
D
D1
E
E1
F
F1
G
G1
H2
H3
L
L1
L2
L3
L4
L5
L6
L7
L9
L10
M
M1
V4
V5
Dia
MIN.
mm
TYP.
2.4
1.2
0.35
0.76
0.8
1.0
3.2
6.6
3.4
6.8
10.05
17.55
15.55
21.2
22.3
17.85
15.75
21.4
22.5
2.6
15.1
6.0
2.1
4.3
4.23
3.75
4.5
4.0
3.65
MAX. MIN.
4.8
1.37
2.8
0.094
1.35 0.047
0.55 0.014
1.19 0.030
1.05 0.031
1.4
0.039
3.6
0.126
7.0
0.260
10.4
10.4 0.396
18.15 0.691
15.95 0.612
21.6 0.831
22.7 0.878
1.29
3.0
0.102
15.8 0.594
6.6
0.236
2.7
0.008
4.8
0.17
4.75 0.167
4.25 0.148
40˚ (typ.)
90˚ (typ.)
3.85 0.144
inch
TYP.
0.134
0.268
0.703
0.620
0.843
0.886
0.178
0.157
t
e
l
o
u
d
o
r
P
e
t
e
l
o
s
b
O
Pentawatt V
E
M1
M
D
D1
L5
O
)
s
(
ct
L1
C
bs
Weight: 2.00gr
t
c
u
od
A
OUTLINE AND
MECHANICAL DATA
)
(s
0.152
L
r
P
e
MAX.
0.189
0.054
0.110
0.053
0.022
0.047
0.041
0.055
0.142
0.276
0.409
0.409
0.715
0.628
0.850
0.894
0.051
0.118
0.622
0.260
0.106
0.189
0.187
0.167
V5
L2
H2
L3
F
E
E1
V4
H3
G G1
Dia.
F
F1
L9
L4
L10
L7
L6
H2
V4
RESIN BETWEEN
LEADS
PENTVME
0015981
8/9
L165
)
s
(
ct
u
d
o
r
P
e
t
e
l
o
)
(s
s
b
O
t
c
u
d
o
r
P
e
t
e
l
o
s
b
O
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
Australia - Brazil - Canada - China - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan -Malaysia - Malta - Morocco Singapore - Spain - Sweden - Switzerland - United Kingdom - United States.
http://www.st.com
9/9