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LM32 の電気的特性と機能

LM32のメーカーはNational Semiconductorです、この部品の機能は「3-Terminal Negative Regulators」です。


製品の詳細 ( Datasheet PDF )

部品番号 LM32
部品説明 3-Terminal Negative Regulators
メーカ National Semiconductor
ロゴ National Semiconductor ロゴ 




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LM32 Datasheet, LM32 PDF,ピン配置, 機能
January 2003
LM320L/LM79LXXAC/LM13121 Series
3-Terminal Negative Regulators
General Description
The LM320L/LM79LXXAC/LM13121 dual marked series of
3-terminal negative voltage regulators features fixed output
voltages of −5V, −12V, and −15V with output current capa-
bilities in excess of 100mA. These devices were designed
using the latest computer techniques for optimizing the pack-
aged IC thermal/electrical performance. The LM79LXXAC
series, even when combined with a minimum output com-
pensation capacitor of 0.1µF, exhibits an excellent transient
response, a maximum line regulation of 0.07% VO/V, and a
maximum load regulation of 0.01% VO/mA.
The LM320L/LM79LXXAC/LM13121 series also includes, as
self-protection circuitry: safe operating area circuitry for out-
put transistor power dissipation limiting, a temperature inde-
pendent short circuit current limit for peak output current
limiting, and a thermal shutdown circuit to prevent excessive
junction temperature. Although designed primarily as fixed
voltage regulators, these devices may be combined with
simple external circuitry for boosted and/or adjustable volt-
ages and currents. The LM79LXXAC series is available in
the 3-lead TO-92 package, 8-lead SOIC package, and the
6-Bump micro SMD package. The LM320L series is avail-
able in the 3-lead TO-92 package.
For output voltage other than −5V, −12V and −15V, the
LM137L series provides an output voltage range from 1.2V
to 47V.
Features
n Preset output voltage error is less than ±5% overload,
line and temperature
n Specified at an output current of 100mA
n Easily compensated with a small 0.1µF output
capacitor
n Internal short-circuit, thermal and safe operating area
protection
n Easily adjustable to higher output voltages
n Maximum line regulation less than 0.07% VOUT/V
n Maximum load regulation less than 0.01% VOUT/mA
n See AN-1112 for micro SMD considerations
Typical Applications
Fixed Output Regulator
Adjustable Output Regulator
00774801
*Required if the regulator is located far from the power supply filter. A 1µF
aluminum electrolytic may be substituted.
**Required for stability. A 1µF aluminum electrolytic may be substituted.
−V0 = −5V − (5V/R1 + IQ) R2,
5V/R1 > 3 IQ
Connection Diagrams
6-Bump micro SMD
TO-92 Plastic Package (Z)
00774803
00774820
Bump Side Down
00774802
Bottom View
© 2003 National Semiconductor Corporation DS007748
www.national.com

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LM32 pdf, ピン配列
Absolute Maximum Ratings (Note 1)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Input Voltage
VO = −5V, −12V, −15V
Internal Power Dissipation (Note 2)
−35V
Internally Limited
Operating Temperature Range
Maximum Junction Temperature
Storage Temperature Range
Lead Temperature
(Soldering, 10 sec.)
0˚C to +70˚C
+125˚C
−55˚C to +150˚C
260˚C
Electrical Characteristics (Note 3)
TA = 0˚C to +70˚C unless otherwise noted.
Output Voltage
−5V
Input Voltage (unless otherwise noted)
−10V
Symbol Parameter
Conditions
Min Typ Max
VO Output
TJ = 25˚C, IO = 100mA −5.2 −5 −4.8
Voltage
VO
Line
Regulation
1mA IO 100mA
VMIN VIN VMAX
1mA IO 40mA
VMIN VIN VMAX
TJ = 25˚C, IO = 100mA
−5.25
−4.75
(−20 VIN −7.5)
−5.25
−4.75
(−20 VIN −7)
60
VO
Load
Regulation
VMIN VIN VMAX
TJ = 25˚C, IO = 40mA
VMIN VIN VMAX
TJ = 25˚C
(−20 VIN −7.3)
60
(−20 VIN −7)
50
1mA IO 100mA
VO
Long Term IO = 100mA
Stability
20
IQ Quiescent IO = 100mA
Current
26
IQ Quiescent 1mA IO 100mA
Current
0.3
Change
1mA IO 40mA
0.1
IO = 100mA
0.25
VMIN VIN VMAX
(−20 VIN −7.5)
Vn Output Noise TJ = 25˚C, IO = 100mA
Voltage
40
f = 10Hz − 10kHz
Ripple
Rejection
TJ = 25˚C, IO = 100mA
f = 120Hz
50
Input Voltage TJ = 25˚C, IO = 100mA
Required to IO = 40mA
Maintain Line
−7.3
−7.0
Regulation
Min
−12.5
−12V
−17V
Typ
−12
Max
−11.5
−12.6
−11.4
(−27 VIN −14.8)
−12.6
−11.4
(−27 VIN −14.5)
45
(−27 VIN −14.6)
45
(−27 VIN −14.5)
100
48
26
0.3
0.1
0.25
(−27 VIN −14.8)
96
52
−14.6
−14.5
Min
−15.6
−15V
−20V
Typ Max
−15 −14.4
Units
−15.75
−14.25
(−30 VIN −18)
−15.75
−14.25
(−30 VIN −17.5)
45
V
mV
(−30 VIN −17.7)
45
(−30 VIN −17.5)
125
V
mV
V
mV
60 mV/khrs
2 6 mA
0.3
0.1
0.25
(−30 VIN −18)
120
mA
mA
V
µV
50 dB
−17.7
−17.5
V
V
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: Thermal resistance of Z package is 60˚C/W θJC, 232˚C/W θJA at still air, and 88˚C/W at 400 ft/min of air. The M package θJA is 180˚C/W in still air. The
maximum junction temperature shall not exceed 125˚C on electrical parameters.
Note 3: To ensure constant junction temperature, low duty cycle pulse testing is used.
3 www.national.com


3Pages


LM32 電子部品, 半導体
Schematic Diagrams
−5V
−12V and −15V
00774809
www.national.com
6
00774810

6 Page



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