How it Works
Datasheet
Loading...
J
Loading...
Loading...
JM38510-11503SX
Datasheet (NSC)
12 pgs286.01 Kb0

Datasheet LM120K-15-883, LM120K-12-883, LM120HG-5MW8, LM120HG-15MW8, LM120H-5.0-883 Datasheet (NSC)

...
Download
Page 1
TL/H/7767
LM120/LM320 Series 3-Terminal Negative Regulators
November 1994
LM120/LM320 Series 3-Terminal Negative Regulators
General Description
The LM120 series are three-terminal negative regulators with a fixed output voltage of
5V,b12V, andb15V, and up to 1.5A load current capability. Where other voltages are required, the LM137 and LM137HV series provide an output voltage range of
1.2V tob47V.
The LM120 need only one external componentÐa compen­sation capacitor at the output, making them easy to apply. Worst case guarantees on output voltage deviation due to any combination of line, load or temperature variation as­sure satisfactory system operation.
Exceptional effort has been made to make the LM120 Se­ries immune to overload conditions. The regulators have current limiting which is independent of temperature, com­bined with thermal overload protection. Internal current limit­ing protects against momentary faults while thermal shut­down prevents junction temperatures from exceeding safe limits during prolonged overloads.
Although primarily intended for fixed output voltage applica­tions, the LM120 Series may be programmed for higher out­put voltages with a simple resistive divider. The low quies­cent drain current of the devices allows this technique to be used with good regulation.
Features
Y
Preset output voltage error less thang3%
Y
Preset current limit
Y
Internal thermal shutdown
Y
Operates with input-output voltage differential down to 1V
Y
Excellent ripple rejection
Y
Low temperature drift
Y
Easily adjustable to higher output voltage
LM120 Series Packages and Power Capability
Rated Design
Device Package Power Load
Dissipation Current
LM120/LM320 TO-3 (K) 20W 1.5A
TO-39 (H) 2W 0.5A
LM320 TO-220 (T) 15W 1.5A
LM320M TO-202 (P) 7.5W 0.5A
Typical Applications
Dual Trimmed Supply
TL/H/7767– 3
Fixed Regulator
TL/H/7767– 2
*Required if regulator is separated from filter capacitor by more than 3×. For
value given, capacitor must be solid tantalum. 25 mF aluminum electrolytic may be substituted.
²
Required for stability. For value given, capacitor must be solid tantalum. 25 mF aluminum electrolytic may substituted. Values given may be increased without limit.
For output capacitance in excess of 100 mF, a high current diode from input to output (1N4001, etc.) will protect the regulator from momentary input shorts.
C
1995 National Semiconductor Corporation RRD-B30M115/Printed in U. S. A.
Page 2
b
5 Volt Regulators (Note 3)
Absolute Maximum Ratings
If Military/Aerospace specified devices are required, Input-Output Voltage Differential 25V
please contact the National Semiconductor Sales
Junction Temperatures See Note 1
Office/Distributors for availability and specifications.
Storage Temperature Range
65
§
Cto
a
150
§
C
(Note 5)
Lead Temperature (Soldering, 10 sec.) 300
§
C
Power Dissipation Internally Limited
Plastic 260
§
C
Input Voltage
25V
Electrical Characteristics
Metal Can Package Power Plastic Package
Order Numbers
LM120K-5.0 LM320K-5.0 LM120H-5.0 LM320H-5.0 LM320T-5.0
(TO-3) (TO-3) (TO-39) (TO-39) (TO-220)
Units
Design Output Current (I
D
) 1.5A 1.5A 0.5A 0.5A 1.5A
Device Dissipation (P
D
) 20W 20W 2W 2W 15W
Parameter Conditions (Note 1) Min Typ Max Min Typ Max Min Typ Max Min Typ Max Min Typ Max
Output Voltage T
J
25
§
C, V
IN
10V,
5.1
5
4.9
5.2
5
4.8
5.1
5
4.9
5.2
5
4.8
5.2
5
4.8 V
I
LOAD
5mA
Line Regulation T
J
25
§
C, I
LOAD
5 mA,
10 25 10 40 10 25 10 40 10 40 mV
V
MIN
s
V
IN
s
V
MAX
Input Voltage
25
7
25
7
25
7
bb
25
7
25
7.5 V
Ripple Rejection f
120 Hz 54 64 54 64 54 64 54 64 54 64 dB
Load Regulation, T
J
25
§
C, V
IN
10V,
50 75 60 100 30 50 30 50 50 100 mV
(Note 2) 5 mA
s
I
LOAD
s
I
D
Output Voltage,
7.5V
s
V
IN
s
V
MAX
,
5.20
4.80
5.25
4.75
5.20
4.80
5.25
4.75
5.25
4.75 V
(Note 1) 5 mA
s
I
LOAD
s
I
D
,P
s
P
D
Quiescent Current V
MIN
s
V
IN
s
V
MAX
12 12 12 12 1 mA
Quiescent Current T
J
25
§
C
Change V
MIN
s
V
IN
s
V
MAX
0.1 0.4 0.1 0.4 0.05 0.4 0.05 0.4 0.1 0.4 mA
5mA
s
I
LOAD
s
I
D
0.1 0.4 0.1 0.4 0.04 0.4 0.04 0.4 0.1 0.4 mA
Output Noise Voltage T
A
25
§
C, C
L
1 mF, I
L
5 mA,
150 150 150 150 150 mV
V
IN
10V, 10 Hz
s
f
s
100 kHz
Long Term Stability 5 50 5 50 5 50 5 50 10 mV
Thermal Resistance
Junction to Case 3 3 Note 4 Note 4 4
§
C/W
Junction to Ambient 35 35 Note 4 Note 4 50
§
C/W
Note 1: This specification applies over
b
55
§
C
s
T
J
s
a
150
§
C for the LM120 and 0
§
C
s
T
J
s
a
125
§
C for the LM320.
Note 2: Regulation is measured at constant junction temperature. Changes in output voltage due to heating effects must be taken into account separately. To ensure constant junction temperature, low duty cycle, pulse testing is
used. The LM120/LM320 series does have low thermal feedback, improving line and load regulation. On all other tests, even though power dissipation is internally limited, electrical specifications apply only up to P
D
.
Note 3: For
b
5V 3 amp regulators, see LM145 data sheet.
Note 4: Thermal resistance of typically 85
§
C/W (in 400 linear feet air flow), 224
§
C/W (in static air) junction to ambient, of typically 21
§
C/W junction to case.
Note 5: Refer to RETS120-5H drawing for LM120H-5.0 or RETS120-5K drawing for LM120-5K military specifications.
2
Page 3
b
12 Volt Regulators
Absolute Maximum Ratings
If Military/Aerospace specified devices are required, Input-Output Voltage Differential 30V
please contact the National Semiconductor Sales
Junction Temperatures See Note 1
Office/Distributors for availability and specifications.
Storage Temperature Range
65
§
Cto
a
150
§
C
(Note 4)
Lead Temperature (Soldering, 10 sec.) 300
§
C
Power Dissipation Internally Limited
Input Voltage
35V
Electrical Characteristics
Metal Can Package Power Plastic Package
Order Numbers
LM120K-12 LM320K-12 LM120H-12 LM320H-12 LM320T-12
(TO-3) (TO-3) (TO-39) (TO-39) (TO-220)
Units
Design Output Current (I
D
) 1A 1A 0.2A 0.2A 1A
Device Dissipation (P
D
) 20W 20W 2W 2W 15W
Parameter Conditions (Note 1) Min Typ Max Min Typ Max Min Typ Max Min Typ Max Min Typ Max
Output Voltage T
J
25
§
C, V
IN
17V,
12.3
12
11.7
12.4
12
11.6
12.3
12
11.7
12.4
12
11.6
12.4
12
11.6 V
I
LOAD
5mA
Line Regulation T
J
25
§
C, I
LOAD
5 mA,
4 10 4 20 4 10 4 20 4 20 mV
V
MIN
s
V
IN
s
V
MAX
Input Voltage
32
14
32
14
32
14
32
14
32
14.5 V
Ripple Rejection f
120 Hz 56 80 56 80 56 80 56 80 56 80 dB
Load Regulation, T
J
25
§
C, V
IN
17V,
30 80 30 80 10 25 10 40 30 80 mV
(Note 2) 5 mA
s
I
LOAD
s
I
D
Output Voltage, 14.5V
s
V
IN
s
V
MAX
,
12.5
11.5
12.6
11.4
12.5
11.5
12.6
11.4
12.6
11.4 V
(Note 1) 5 mA
s
I
LOAD
s
I
D
,P
s
P
D
Quiescent Current V
MIN
s
V
IN
s
V
MAX
24 24 24 24 2 4 mA
Quiescent Current T
J
25
§
C
Change V
MIN
s
V
IN
s
V
MAX
0.1 0.4 0.1 0.4 0.05 0.4 0.05 0.4 0.1 0.4 mA
5mA
s
I
LOAD
s
I
D
0.1 0.4 0.1 0.4 0.03 0.4 0.03 0.4 0.1 0.4 mA
Output Noise Voltage T
A
25
§
C, C
L
1 mF, I
L
5 mA,
400 400 400 400 400 mV
V
IN
17V, 10 Hz
s
f
s
100 kHz
Long Term Stability 12 120 12 120 12 120 12 120 24 mV
Thermal Resistance
Junction to Case 3 3 Note 3 Note 3 4
§
C/W
Junction to Ambient 35 35 Note 3 Note 3 50
§
C/W
Note 1: This specification applies over
b
55
§
C
s
T
J
s
a
150
§
C for the LM120 and 0
§
C
s
T
J
s
a
125
§
C for the LM320.
Note 2: Regulation is measured at constant junction temperature. Changes in output voltage due to heating effects must be taken into account separately. To ensure constant junction temperature, low duty cycle, pulse testing is
used. The LM120/LM320 series does have low thermal feedback, improving line and load regulation. On all other tests, even though power dissipation is internally limited, electrical specifications apply only up to P
D
.
Note 3: Thermal resistance of typically 85
§
C/W (in 400 linear feet/min air flow), 224
§
C/W (in static air) junction to ambient, of typically 21
§
C/W junction to case.
Note 4: Refer to RETS120H-12 drawing for LM120H-12 or RETS120-12K drawing for LM120K-12 military specifications.
3
Page 4
b
15 Volt Regulators
Absolute Maximum Ratings
If Military/Aerospace specified devices are required, Input-Output Voltage Differential 30V
please contact the National Semiconductor Sales
Junction Temperatures See Note 1
Office/Distributors for availability and specifications.
Storage Temperature Range
65
§
Cto
a
150
§
C
(Note 4)
Lead Temperature (Soldering, 10 sec.) 300
§
C
Power Dissipation Internally Limited
Input Voltage
LM120/LM320
40V
LM320T
35V
Electrical Characteristics
Metal Can Package Power Plastic Package
Order Numbers
LM120K-15 LM320K-15 LM120H-15 LM320H-15 LM320T-15
(TO-3) (TO-3) (TO-39) (TO-39) (TO-220)
Units
Design Output Current (I
D
) 1A 1A 0.2A 0.2A 1A
Device Dissipation (P
D
) 20W 20W 2W 2W 15W
Parameter Conditions (Note 1) Min Typ Max Min Typ Max Min Typ Max Min Typ Max Min Typ Max
Output Voltage T
J
25
§
C, V
IN
20V,
15.3
15
14.7
15.4
15
14.6
15.3
15
14.7
15.4
15
14.6
15.5
15
14.5 V
I
LOAD
5mA
Line Regulation T
J
25
§
C, I
LOAD
5 mA,
5 10 5 20 5 10 5 20 5 20 mV
V
MIN
s
V
IN
s
V
MAX
Input Voltage
35
17
35
17
35
17
35
17
35
17.5 V
Ripple Rejection f
120 Hz 56 80 56 80 56 80 56 80 56 80 dB
Load Regulation, T
J
25
§
C, V
IN
20V,
30 80 30 80 10 25 10 40 30 80 mV
(Note 2) 5 mA
s
I
LOAD
s
I
D
Output Voltage, 17.5V
s
V
IN
s
V
MAX
,
15.5
14.5
15.6
14.4
15.5
14.5
15.6
14.4
15.7
14.3 V
(Note 1) 5 mA
s
I
LOAD
s
I
D
,P
s
P
D
Quiescent Current V
MIN
s
V
IN
s
V
MAX
24 24 24 24 2 4 mA
Quiescent Current T
J
25
§
C
Change V
MIN
s
V
IN
s
V
MAX
0.1 0.4 0.1 0.4 0.05 0.4 0.05 0.4 0.1 0.4 mA
5mA
s
I
LOAD
s
I
D
0.1 0.4 0.1 0.4 0.03 0.4 0.03 0.4 0.1 0.4 mA
Output Noise Voltage T
A
25
§
C, C
L
1 mF, I
L
5 mA,
400 400 400 400 400 mV
V
IN
20V, 10 Hz
s
f
s
100 kHz
Long Term Stability 15 150 15 150 15 150 15 150 30 mV
Thermal Resistance
Junction to Case 3 3 Note 3 Note 3 4
§
C/W
Junction to Ambient 35 35 Note 3 Note 3 50
§
C/W
Note 1: This specification applies over
b
55
§
C
s
T
J
s
a
150
§
C for the LM120 and 0
§
C
s
T
J
s
a
125
§
C for the LM320.
Note 2: Regulation is measured at constant junction temperature. Changes in output voltage due to heating effects must be taken into account separately. To ensure constant junction temperature, low duty cycle, pulse testing is
used. The LM120/LM320 series does have low thermal feedback, improving line and load regulation. On all other tests, even though power dissipation is internally limited, electrical specifications apply only up to P
D
.
Note 3: Thermal resistance of typically 85
§
C/W (in 400 linear feet/min air flow), 224
§
C/W (in static air) junction to ambient, of typically 21
§
C/W junction to case.
Note 4: Refer to RETS120-15H drawing for LM120H-15 or RETS120-15K drawing for LM120K-15 military specifications.
4
Page 5
Typical Performance Characteristics
Temperature
Output Voltage vs
(All Types)
Ripple Rejection
and TO-220 Packages
Output Impedance TO-3
and TO-202 Packages
Output Impedance TO-5
TO-220 Packages
Differential TO-3 and
Minimum Input-Output
TO-202 Packages
Differential TO-5 and
Minimum Input-Output
Input Voltage
Quiescent Current vs
Load Current
Quiescent Current vs
Dissipation (TO-3)
Maximum Average Power
TL/H/7767– 4
*These curves for LM120.
Derate 25
§
C further for LM320.
5
Page 6
Typical Performance Characteristics (Continued)
Dissipation (TO-5)
Maximum Average Power
Dissipation (TO-202)
Maximum Average Power
Dissipation (TO-220)
Maximum Average Power
Short Circuit Current
TL/H/7767– 5
Typical Applications (Continued)
High Stability 1 Amp Regulator
TL/H/7767– 6
Lead and line regulation Ð 0.01% temperature stability Ð 0.2%
²
Determines Zener current.
²²
Solid tantalum.
An LM120-12 or LM120-15 may be used to permit higher input voltages, but the regulated output voltage must be at least
b
15V when using the LM120-12 and
b
18V for the LM120-15.
**Select resistors to set output voltage. 2 ppm/
§
C tracking suggested.
6
Page 7
Typical Applications (Continued)
Wide Range Tracking Regulator
TL/H/7767– 7
*Resistor tolerance of R1 and R2 determine matching of (a) and (b) inputs.
**Necessary only if raw supply capacitors are more than 3
×
from regulators
An LM3086N array may substitute for Q1, D1 and D2 for better stability and tracking. In the array diode transistors Q5 and Q4 (in parallel) make up D2; similarly, Q1 and Q2 become D1 and Q3 replaces the 2N2222.
Variable Output
TL/H/7767– 9
*Optional. Improves transient response and ripple rejection.
V
OUT
e
V
SET
R1aR2
R2
SELECT R2 AS FOLLOWS:
LM120-5
b
300X
LM120-12
b
750X
LM120-15
b
1k
Current Source
*I
OUT
e
1mA
a
5.0V
R1
TL/H/7767– 8
g
15V, 1 Amp Tracking Regulators
TL/H/7767– 12
Performance (Typical)
Load Regulation at DI
L
e
1A 10 mV 1 mV
Output Ripple, C
IN
e
3000 mF, I
L
e
1A 100 mVrms 100 mVrms
Temperature Stability
a
50 mVa50 mV
Output Noise 10 Hz
sfs
10 kHz 150 mVrms 150 mVrms
*Resistor tolerance of R4 and R5 determine matching of (
a
) and
(
b
) outputs.
**Necessary only if raw supply filter capacitors are more than 2
×
from regulators.
Light Controllers Using Silicon Photo Cells
TL/H/7767– 10
*Lamp brightness increases until i
I
e
5V/R1 (iIcan be set as low as 1 mA).
²
Necessary only of raw supply filter capacitor is more than 2×from LM320MP.
TL/H/7767– 11
*Lamp brightness increases until i
I
e
iQ(1 mA)a5V/R1.
²
Necessary only if raw supply filter capacitor is more than 2×from LM320.
7
Page 8
Connection Diagrams
TL/H/7767– 13
Bottom View
Metal Can Package TO-39 (H)
Order Number LM120H-5.0, LM120H-12, LM120H-15,
LM120H-5.0/883, LM120H-12/883, LM120H-15/883,
LM320H-5.0, LM320H-12 or LM320H-15
See NS Package Number H03A
TL/H/7767– 14
Bottom View
Steel Metal Can Package TO-3 (K)
Order Number LM120K-5.0/883, LM120K-12/883,
LM120K-15/883, LM320K-5.0, LM320K-12 or LM320K-15
See NS Package Number K02A
TL/H/7767– 17
Front View
Power Package TO-220 (T)
Order Number LM320T-5.0, LM320T-12 or LM320T-15
See NS Package Number T03B
Schematic Diagrams
5V
TL/H/7767– 18
8
Page 9
Schematic Diagrams (Continued)
12V andb15V
TL/H/7767– 19
Physical Dimensions inches (millimeters)
Metal Can Package (TO-39) (H)
Order Number LM120H-5.0, LM120H-12, LM120H-15, LM320H-5.0, LM320H-12 or LM320H-15
NS Package Number H03A
9
Page 10
Physical Dimensions inches (millimeters) (Continued)
Steel Metal Can Package TO-3 (K)
Order Number LM120K-5.0, LM120K-12, LM120K-15, LM320K-5.0, LM320K-12 or LM320K-15
NS Package Number K02A
Aluminum Metal Can Package TO-3 (KC)
Order Number LM320KC-5.0, LM320KC-12 or LM320KC-15
NS Package Number KC02A
10
Page 11
Physical Dimensions inches (millimeters) (Continued)
Power Package TO-202 (P)
Order Number LM320MP-5.0, LM320MP-12 or LM320MP-15
NS Package Number P03A
11
Page 12
LM120/LM320 Series 3-Terminal Negative Regulators
Physical Dimensions inches (millimeters) (Continued)
Power Package TO-220 (T)
Order Number LM320T-5.0, LM320T-12 or LM320T-15
NS Package Number T03B
LIFE SUPPORT POLICY
NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF NATIONAL SEMICONDUCTOR CORPORATION. As used herein:
1. Life support devices or systems are devices or 2. A critical component is any component of a life systems which, (a) are intended for surgical implant support device or system whose failure to perform can into the body, or (b) support or sustain life, and whose be reasonably expected to cause the failure of the life failure to perform, when properly used in accordance support device or system, or to affect its safety or with instructions for use provided in the labeling, can effectiveness. be reasonably expected to result in a significant injury to the user.
National Semiconductor National Semiconductor National Semiconductor National Semiconductor Corporation Europe Hong Kong Ltd. Japan Ltd.
1111 West Bardin Road Fax: (
a
49) 0-180-530 85 86 13th Floor, Straight Block, Tel: 81-043-299-2309 Arlington, TX 76017 Email: cnjwge@tevm2.nsc.com Ocean Centre, 5 Canton Rd. Fax: 81-043-299-2408 Tel: 1(800) 272-9959 Deutsch Tel: (
a
49) 0-180-530 85 85 Tsimshatsui, Kowloon Fax: 1(800) 737-7018 English Tel: (
a
49) 0-180-532 78 32 Hong Kong
Fran3ais Tel: (
a
49) 0-180-532 93 58 Tel: (852) 2737-1600
Italiano Tel: (
a
49) 0-180-534 16 80 Fax: (852) 2736-9960
National does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and National reserves the right at any time without notice to change said circuitry and specifications.
Loading...
Buy Points How it Works FAQ Contact Us Questions and Suggestions Privacy Policy Cookie Policy Terms of Use