LM117HVHMD8 [NSC]
1.2 V-57V ADJUSTABLE POSITIVE REGULATOR, UUC, DIE;
| 型号： | LM117HVHMD8 |
| 厂家： | 
National Semiconductor |
| 描述： | 1.2 V-57V ADJUSTABLE POSITIVE REGULATOR, UUC, DIE 输出元件 调节器 |
| 文件： | 总19页 (文件大小：545K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
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Texas Instruments.
Search http://www.ti.com/ for the latest technical
information and details on our current products and services.
April 2000
LM117HV/LM317HV
3-Terminal Adjustable Regulator
Also, it makes an especially simple adjustable switching
regulator, a programmable output regulator, or by connecting
a fixed resistor between the adjustment and output, the
LM117HV can be used as a precision current regulator. Sup-
plies with electronic shutdown can be achieved by clamping
the adjustment terminal to ground which programs the out-
put to 1.2V where most loads draw little current.
General Description
The LM117HV/LM317HV are adjustable 3-terminal positive
voltage regulators capable of supplying in excess of 1.5A
over a 1.2V to 57V output range. They are exceptionally
easy to use and require only two external resistors to set the
output voltage. Further, both line and load regulation are bet-
ter than standard fixed regulators. Also, the LM117HV is
packaged in standard transistor packages which are easily
mounted and handled.
The LM117HVK STEEL and LM317HVK STEEL are pack-
aged in standard TO-3 transistor packages, while the
LM117HVH and LM317HVH are packaged in a solid Kovar
base TO-39 transistor package. The LM317HVT uses a TO-
220 plastic package. The LM117HV is rated for operation
from −55˚C to +150˚C, and the LM317HV from 0˚C to
+125˚C.
In addition to higher performance than fixed regulators, the
LM117HV series offers full overload protection available only
in IC’s. Included on the chip are current limit, thermal over-
load protection and safe area protection. All overload protec-
tion circuitry remains fully functional even if the adjustment
terminal is disconnected.
Features
Normally, no capacitors are needed unless the device is situ-
ated more than 6 inches from the input filter capacitors in
which case an input bypass is needed. An optional output
capacitor can be added to improve transient response. The
adjustment terminal can be bypassed to achieve very high
ripple rejections ratios which are difficult to achieve with
standard 3-terminal regulators.
n Adjustable output down to 1.2V
n Guaranteed 1.5A output current
n Line regulation typically 0.01%/V
n Load regulation typically 0.1%
n Current limit constant with temperature
n 100% electrical burn-in
Besides replacing fixed regulators, the LM117HV is useful in
a wide variety of other applications. Since the regulator is
“floating” and sees only the input-to-output differential volt-
age, supplies of several hundred volts can be regulated as
long as the maximum input to output differential is not ex-
ceeded, i.e. do not short the output to ground.
n Eliminates the need to stock many voltages
n Standard 3-lead transistor package
n 80 dB ripple rejection
n Output is short-circuit protected
n P+ Product Enhancement tested
Typical Applications
1.2V-45V Adjustable Regulator
DS009062-1
Full output current not available at high input-output voltages
†
Optional — improves transient response. Output capacitors in the range of 1 µF to 1000 µF of aluminum or tantalum electrolytic
are commonly used to provide improved output impedance and rejection of transients.
*Needed if device is more than 6 inches from filter capacitors.
© 2000 National Semiconductor Corporation
DS009062
www.national.com
Typical Applications (Continued)
Digitally Selected Outputs
5V Logic Regulator with
*
Electronic Shutdown
DS009062-3
*Min. output ≈ 1.2V
DS009062-2
*Sets maximum V
OUT
www.national.com
2
Absolute Maximum Ratings (Note 1)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Operating Junction Temperature Range
LM117HV
−55˚C to +150˚C
0˚C to +125˚C
−65˚C to +150˚C
300˚C
LM317HV
Storage Temperature
(Note 4)
Lead Temperature (Soldering, 10 sec.)
ESD Tolerance (Note 5)
2000V
Power Dissipation
Internally limited
+60V, −0.3V
Input—Output Voltage Differential
Electrical Characteristics (Note 2)
Parameter
Conditions
LM117HV
Typ
LM317HV
Typ
Units
Min
Max Min
Max
Line Regulation
TJ = 25˚C, 3V ≤ VIN − VOUT ≤ 60V
(Note 3) IL = 10 mA
0.01
0.02
0.01
0.04
%/V
%
Load Regulation
TJ = 25˚C, 10 mA ≤ IOUT ≤ IMAX
TJ = 25˚C, 20 ms Pulse
0.1
0.03
50
0.3
0.07
100
5
0.1
0.04
50
0.5
Thermal Regulation
0.07 %/W
Adjustment Pin Current
Adjustment Pin Current Change
100
5
µA
µA
10 mA ≤ IL ≤ IMAX
3.0 V ≤ (VIN − VOUT) ≤ 60V
3.0 V ≤ (VIN − VOUT) ≤ 60V, (Note 4)
10 mA ≤ IOUT ≤ IMAX, P ≤ PMAX
3.0V ≤ (VIN − VOUT) ≤ 60V,
IL = 10 mA, (Note 3)
10 mA ≤ IOUT ≤ IMAX (Note 3)
TMIN ≤ TJ ≤ TMAX
(VIN − VOUT) = 60V
(VIN − VOUT) ≤ 15V
K, T Packages
0.2
0.2
Reference Voltage
Line Regulation
1.20
1.25
0.02
1.30 1.20
1.25
0.02
1.30
0.07
1.5
V
0.05
1
%/V
Load Regulation
0.3
1
0.3
1
%
%
Temperature Stability
Minimum Load Current
Current Limit
3.5
7
3.5
12
mA
1.5
0.5
2.2
0.8
3.5
1.8
1.5
0.5
2.2
0.8
3.7
1.9
A
A
H Package
(VIN − VOUT) ≤ 60V
K, T Packages
0.3
0.03
0.003
65
0.3
0.03
0.003
65
A
H Package
A
RMS Output Noise, % of VOUT
Ripple Rejection Ratio
TJ = 25˚C, 10 Hz ≤ f ≤ 10 kHz
VOUT = 10V, f = 120 Hz
CADJ = 10 µF
%
dB
66
80
66
80
dB
Long-Term Stability
Thermal Resistance,
Junction to Case
TJ = 125˚C
0.3
1
0.3
12
1
15
5
%
H Package
12
15
˚C/W
˚C/W
˚C/W
˚C/W
˚C/W
˚C/W
T Package
4
K Package
2.3
3
2.3
140
50
3
Thermal Resistance,
Junction to Ambient
(no heat sink)
H Package
140
T Package
K Package
35
35
Note 1: “Absolute Maximum Ratings” indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is
functional, but do not guarantee specific performance limits.
Note 2: Unless otherwise specified, these specifications apply: −55˚C ≤ T ≤ +150˚C for the LM117HV, and 0˚C ≤ T ≤ +125˚C for the LM317HV; V − V = 5V
OUT
J
J
IN
and I
= 0.1A for the TO-39 package and I
= 0.5A for the TO-3 and TO-220 packages. Although power dissipation is internally limited, these specifications are
OUT
OUT
applicable for power dissipations of 2W for the TO-39 and 20W for the TO-3 and TO-220. I
is 1.5A for the TO-3 and TO-220 and 0.5A for the TO-39 package.
MAX
Note 3: Regulation is measured at constant junction temperature. Changes in output voltage due to heating effects must be taken into account separately. Pulse test-
ing with low duty cycle is used.
Note 4: Refer to RETS117HVH for LM117HVH or RETS117HVK for LM117HVK military specificatioins.
Note 5: Human body model, 1.5 kΩ in series with 100 pF.
3
www.national.com
Typical Performance Characteristics Output capacitor = 0 µF unless otherwise noted.
Load Regulation
Current Limit
Adjustment Current
DS009062-32
DS009062-34
DS009062-33
Dropout Voltage
Temperature Stability
Minimum Operating Current
DS009062-35
DS009062-36
DS009062-37
Ripple Rejection
Ripple Rejection
Ripple Rejection
DS009062-38
DS009062-40
DS009062-39
Output Impedance
Line Transient Response
Load Transient Response
DS009062-42
DS009062-43
DS009062-41
www.national.com
4
insures stability. Any increase of load capacitance larger
than 10 µF will merely improve the loop stability and output
impedance.
Application Hints
In operation, the LM117HV develops a nominal 1.25V refer-
ence voltage, VREF, between the output and adjustment ter-
minal. The reference voltage is impressed across program
resistor R1 and, since the voltage is constant, a constant
current I1 then flows through the output set resistor R2, giv-
ing an output voltage of
Load Regulation
The LM117HV is capable of providing extremely good load
regulation but a few precautions are needed to obtain maxi-
mum performance. The current set resistor connected be-
tween the adjustment terminal and the output terminal (usu-
ally 240Ω) should be tied directly to the output of the
regulator rather than near the load. This eliminates line
drops from appearing effectively in series with the reference
and degrading regulation. For example, a 15V regulator with
0.05Ω resistance between the regulator and load will have a
load regulation due to line resistance of 0.05Ω x IL. If the set
resistor is connected near the load the effective line resis-
tance will be 0.05Ω (1 + R2/R1) or in this case, 11.5 times
worse.
Figure 2 shows the effect of resistance between the regula-
tor and 240Ω set resistor.
DS009062-5
FIGURE 1.
Since the 100 µA current from the adjustment terminal repre-
sents an error term, the LM117HV was designed to minimize
IADJ and make it very constant with line and load changes.
To do this, all quiescent operating current is returned to the
output establishing a minimum load current requirement. If
there is insufficient load on the output, the output will rise.
DS009062-6
FIGURE 2. Regulator with Line
Resistance in Output Lead
External Capacitors
With the TO-3 package, it is easy to minimize the resistance
from the case to the set resistor, by using two separate leads
to the case. However, with the TO-5 package, care should be
taken to minimize the wire length of the output lead. The
ground of R2 can be returned near the ground of the load to
provide remote ground sensing and improve load regulation.
An input bypass capacitor is recommended. A 0.1 µF disc or
1 µF solid tantalum on the input is suitable input bypassing
for almost all applications. The device is more sensitive to
the absence of input bypassing when adjustment or output
capacitors are used but the above values will eliminate the
possiblity of problems.
The adjustment terminal can be bypassed to ground on the
LM117HV to improve ripple rejection. This bypass capacitor
prevents ripple from being amplified as the output voltage is
increased. With a 10 µF bypass capacitor 80 dB ripple rejec-
tion is obtainable at any output level. Increases over 10 µF
do not appreciably improve the ripple rejection at frequen-
cies above 120 Hz. If the bypass capacitor is used, it is
sometimes necessary to include protection diodes to prevent
the capacitor from discharging through internal low current
paths and damaging the device.
Protection Diodes
When external capacitors are used with any IC regulator it is
sometimes necessary to add protection diodes to prevent
the capacitors from discharging through low current points
into the regulator. Most 10 µF capacitors have low enough
internal series resistance to deliver 20A spikes when
shorted. Although the surge is short, there is enough energy
to damage parts of the IC.
When an output capacitor is connected to a regulator and
the input is shorted, the output capacitor will discharge into
the output of the regulator. The discharge current depends
on the value of the capacitor, the output voltage of the regu-
lator, and the rate of decrease of VIN. In the LM117HV, this
discharge path is through a large junction that is able to sus-
tain 15A surge with no problem. This is not true of other
types of positive regulators. For output capacitors of 25 µF or
less, there is no need to use diodes.
In general, the best type of capacitors to use are solid tanta-
lum. Solid tantalum capacitors have low impedance even at
high frequencies. Depending upon capacitor construction, it
takes about 25 µF in aluminum electrolytic to equal 1 µF
solid tantalum at high frequencies. Ceramic capacitors are
also good at high frequencies; but some types have a large
decrease in capacitance at frequencies around 0.5 MHz. For
this reason, 0.01 µF disc may seem to work better than a 0.1
µF disc as a bypass.
The bypass capacitor on the adjustment terminal can dis-
charge through a low current junction. Discharge occurs
when either the input or output is shorted. Internal to the
LM117HV is a 50Ω resistor which limits the peak discharge
current. No protection is needed for output voltages of 25V
Although the LM117HV is stable with no output capacitors,
like any feedback circuit, certain values of external capaci-
tance can cause excessive ringing. This occurs with values
between 500 pF and 5000 pF. A 1 µF solid tantalum (or 25 µF
aluminum electrolytic) on the output swamps this effect and
5
www.national.com
Application Hints (Continued)
or less and 10 µF capacitance. Figure 3 shows an LM117HV
with protection diodes included for use with outputs greater
than 25V and high values of output capacitance.
Current Limit
Internal current limit will be activated whenever the output
current exceeds the limit indicated in the Typical Perfor-
mance Characteristics. However, if during a short circuit con-
dition the regulator’s differential voltage exceeds the Abso-
lute Maximum Rating of 60V (e.g. VIN ≥ 60V, VOUT = 0V),
internal junctions in the regulator may break down and the
device may be damaged or fail. Failure modes range from an
apparent open or short from input to output of the regulator,
to a destroyed package (most common with the TO-220
package). To protect the regulator, the user is advised to be
aware of voltages that may be applied to the regulator during
fault conditions, and to avoid violating the Absolute Maxi-
mum Ratings.
DS009062-7
FIGURE 3. Regulator with Protection Diodes
Note: D1 protects against C1
D2 protects against C2
Schematic Diagram
DS009062-8
Typical Applications
Slow Turn-On 15V Regulator
Adjustable Regulator with Improved
Ripple Rejection
DS009062-9
DS009062-10
†
Solid tantalum
*Discharges C1 if output is shorted to ground
www.national.com
6
Typical Applications (Continued)
High Stability 10V Regulator
High Current Adjustable Regulator
DS009062-11
DS009062-12
†
Solid tantalum
*Minimum load current = 30 mA
‡
Optional — improves ripple rejection
0 to 30V Regulator
Power Follower
DS009062-13
DS009062-14
Full output current not available at high input-output voltages
7
www.national.com
Typical Applications (Continued)
5A Constant Voltage/Constant Current Regulator
DS009062-15
†
Solid tantalum
*Lights in constant current mode
1A Current Regulator
1.2V–20V Regulator with
Minimum Program Current
DS009062-16
DS009062-17
*Minimum load current ≈ 4 mA
www.national.com
8
Typical Applications (Continued)
High Gain Amplifier
Low Cost 3A Switching Regulator
DS009062-18
DS009062-19
†
Solid tantalum
*Core — Arnold A-254168-2 60 turns
4A Switching Regulator with Overload Protection
DS009062-20
†
Solid tantalum
*Core — Arnold A-254168-2 60 turns
9
www.national.com
Typical Applications (Continued)
Precision Current Limiter
Tracking Preregulator
DS009062-21
* 0.8Ω ≤ R1 ≤ 120Ω
DS009062-22
Adjustable Multiple On-Card Regulators
*
with Single Control
DS009062-23
±
*All outputs within 100 mV
†
Minimum load — 10 mA
AC Voltage Regulator
12V Battery Charger
DS009062-25
Use of R allows low charging rates with fully charged battery.
S
**
The 1000 µF is recommended to filter out input transients
DS009062-24
www.national.com
10
Typical Applications (Continued)
Current Limited 6V Charger
50 mA Constant Current Battery Charger
DS009062-26
Adjustable 4A Regulator
DS009062-28
*
Sets peak current (0.6A for 1Ω)
**
The 1000 µF is recommended to filter out input transients
DS009062-27
11
www.national.com
Connection Diagrams (See Physical Dimension section for further information)
(TO-3)
Metal Can Package
(TO-39)
Metal Can Package
(TO-220)
Plastic Package
DS009062-30
Case is Output
DS009062-29
Bottom View
Order Number LM117HVH,
Case is Output
Bottom View
Order Number LM117HVKSTL/883
LM117HVH/883
or LM317HVH
See NS Package Number K02C
See NS Package Number H03A
Order Number LM317HVK STEEL
See NS Package Number K02A
DS009062-31
Front View
Order Number LM317HVT
See NS Package Number T03B
www.national.com
12
Physical Dimensions inches (millimeters) unless otherwise noted
Order Number LM117HVH, LM117HVH/883, or LM317HVH
NS Package Number H03A
Metal Can Package (K)
Order Number LM317HVK STEEL
NS Package Number K02A
13
www.national.com
Physical Dimensions inches (millimeters) unless otherwise noted (Continued)
Metal Can Package (K)
Mil-Aero Product
Order Number LM117HVKSTL/883
NS Package Number K02C
Order Number LM317HVT
NS Package Number T03B
www.national.com
14
Notes
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 AND GENERAL
COUNSEL OF NATIONAL SEMICONDUCTOR CORPORATION. As used herein:
1. Life support devices or systems are devices or
systems which, (a) are intended for surgical implant
into the body, or (b) support or sustain life, and
whose failure to perform when properly used in
accordance with instructions for use provided in the
labeling, can be reasonably expected to result in a
significant injury to the user.
2. A critical component is any component of a life
support device or system whose failure to perform
can be reasonably expected to cause the failure of
the life support device or system, or to affect its
safety or effectiveness.
National Semiconductor
Corporation
Americas
Tel: 1-800-272-9959
Fax: 1-800-737-7018
Email: support@nsc.com
National Semiconductor
Europe
National Semiconductor
Asia Pacific Customer
Response Group
Tel: 65-2544466
Fax: 65-2504466
National Semiconductor
Japan Ltd.
Tel: 81-3-5639-7560
Fax: 81-3-5639-7507
Fax: +49 (0) 180-530 85 86
Email: europe.support@nsc.com
Deutsch Tel: +49 (0) 69 9508 6208
English Tel: +44 (0) 870 24 0 2171
Français Tel: +33 (0) 1 41 91 8790
Email: ap.support@nsc.com
www.national.com
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.
See A/D Converters
Products
Products > Analog - Regulators > Linear Regulators - Standard/NPN > Positive Voltage - Adjustable >
LM117HV
LM117HV Product Folder
3-Terminal Adjustable Regulator
Generic P/N 117HV
General
Description
Package
& Models
Samples
& Pricing
Application
Notes
Features
Datasheet
Parametric Table
Multiple Output Capability
On/Off Pin
Parametric Table
No
Input Voltage, max (Volt)
Output Current, max
Watchdog
60
No
500 mA, 1500 mA
Error Flag
No
No
Input Voltage, min (Volt)
4.20
Output Voltage, min (Volt)
Output Voltage, max (Volt)
1.20
57
Datasheet
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LM117HV LM317HV 3-Terminal
Adjustable Regulator
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469 Kbytes
120 Kbytes
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LM117HV Mil-Aero Datasheet
MNLM117HV-H
LM117HV Mil-Aero Datasheet
MNLM117HV-K
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Package Availability, Models, Samples & Pricing
Budgetary
Pricing
Samples &
Electronic
Orders
Std
Pack
Size
Package
Type Pins MSL
TO-
Models
Package
Marking
Part Number
Status
SPICE IBIS
Qty $US each
bag
of
500
Full
production
[logo]¢Z¢2¢T
LM117HVHP+
MSL
MSL
MSL
LM117HVH
3
3
2
N/A
N/A
N/A
N/A
N/A
N/A
1K+ $9.2000
Buy Now
Buy Now
Buy Now
39
tray
of
20
TO-
39
Full
production
[logo] ¢Z¢S¢4¢A$E
LM117HVH/883Q¢M
LM117HVH/883
LM117HVK/883
50+ $10.1000
50+ $9.4000
tray
of
50
[logo]¢Z¢S¢4¢A$E
LM117HVK/883
Q¢M
Full
production
TO-3
tray
of
20
TO-
39
Full
production
[logo] ¢Z¢S¢4¢A$E
LM117HVH-MLS
MSL
MSL
LM117HVH-MLS
LM117HVK-MLS
LM117HVH MD8
3
2
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
50+ $199.0000
50+ $205.0000
tray
of
50
[logo]¢Z¢S¢4¢A
LM117HVK
-MLS $E
Full
production
TO-3
tray
of
N/A
Full
production
Samples
Samples
Die
Die
-
-
tray
of
N/A
LM117HVKG
MD8
Full
production
wafer
jar
of
Full
production
Wafer
Wafer
LM117HVH MW8
N/A
N/A
N/A
N/A
-
-
N/A
wafer
jar
of
LM117HVKG
MW8
Full
production
N/A
General Description
The LM117HV/LM317HV are adjustable 3-terminal positive voltage regulators capable of supplying in excess
of 1.5A over a 1.2V to 57V output range. They are exceptionally easy to use and require only two external
resistors to set the output voltage. Further, both line and load regulation are better than standard fixed
regulators. Also, the LM117HV is packaged in standard transistor packages which are easily mounted and
handled.
In addition to higher performance than fixed regulators, the LM117HV series offers full overload protection
available only in IC's. Included on the chip are current limit, thermal overload protection and safe area
protection. All overload protection circuitry remains fully functional even if the adjustment terminal is
disconnected.
Normally, no capacitors are needed unless the device is situated more than 6 inches from the input filter
capacitors in which case an input bypass is needed. An optional output capacitor can be added to improve
transient response. The adjustment terminal can be bypassed to achieve very high ripple rejections ratios
which are difficult to achieve with standard 3-terminal regulators.
Besides replacing fixed regulators, the LM117HV is useful in a wide variety of other applications. Since the
regulator is "floating" and sees only the input-to-output differential voltage, supplies of several hundred volts
can be regulated as long as the maximum input to output differential is not exceeded, i.e. do not short the
output to ground.
Also, it makes an especially simple adjustable switching regulator, a programmable output regulator, or by
connecting a fixed resistor between the adjustment and output, the LM117HV can be used as a precision
current regulator. Supplies with electronic shutdown can be achieved by clamping the adjustment terminal to
ground which programs the output to 1.2V where most loads draw little current.
The LM117HVK STEEL and LM317HVK STEEL are packaged in standard TO-3 transistor packages, while the
LM117HVH and LM317HVH are packaged in a solid Kovar base TO-39 transistor package. The LM317HVT
uses a TO-220 plastic package. The LM117HV is rated for operation from -55°C to +150°C, and the
LM317HV from 0°C to +125°C.
Features
●
●
●
●
●
●
●
●
●
●
Adjustable output down to 1.2V
Guaranteed 1.5A output current
Line regulation typically 0.01%/V
Load regulation typically 0.1%
Current limit constant with temperature
100% electrical burn-in
Eliminates the need to stock many voltages
Standard 3-lead transistor package
80 dB ripple rejection
Output is short-circuit protected
P+ Product Enhancement tested
●
Application Notes
Title
Size in Kbytes Date
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LB-46: A New Production
Technique for Trimming Voltage
Regulators
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91 Kbytes
69 Kbytes
28-Jun-96
LB-47: High Voltage Adjustable
Power Supplies
28-Jun-96
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[Information as of 5-Aug-2002]
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LM117HVHMW8
IC VREG 1.2 V-57 V ADJUSTABLE POSITIVE REGULATOR, UUC, WAFER, Adjustable Positive Single Output Standard Regulator
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