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參數資料
| 型號： | LM204 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | Negative Regulator |
| 中文描述： | 負穩壓器 |
| 文件頁數： | 1/6頁 |
| 文件大小： | 161K |
| 代理商： | LM204 |
TL/H/7754
L
March 1989
LM104/LM204/LM304 Negative Regulator
General Description
The LM104 series are precision voltage regulators which
can be programmed by a single external resistor to supply
any voltage from 40V down to zero while operating from a
single unregulated supply. They can also provide 0.01-per-
cent regulation in circuits using a separate, floating bias
supply, where the output voltage is limited only by the
breakdown of external pass transistors. Although designed
primarily as linear, series regulators, the circuits can be used
as switching regulators, current regulators or in a number of
other control applications. Typical performance characteris-
tics are:
Y
Subsurface zener reference
Y
1 mV regulation no load to full load
Y
0.01%/V line regulation
Y
0.2 mV/V ripple rejection
Y
0.3% temperature stability over military temperature
range
The LM104 series is the complement of the LM105 positive
regulator, intended for systems requiring regulated negative
voltages which have a common ground with the unregulated
supply. By themselves, they can deliver output currents to
25 mA, but external transistors can be added to get any
desired current. The output voltage is set by external resis-
tors, and either constant or foldback current limiting is made
available.
The LM104 is specified for operation over the
b
55
§
C to
a
125
§
C military temperature range. The LM204 is specified
for operation over the
b
25
§
C to
a
85
§
C temperature range.
The LM304 is specified for operation from 0
§
C to
a
70
§
C.
Schematic Diagram
TL/H/7754–1
C
1995 National Semiconductor Corporation
RRD-B30M115/Printed in U. S. A.
相關PDF資料 |
PDF描述 |
|---|---|
| LM204H | Negative Regulator |
| LM304H | Aluminum Electrolytic Capacitor; Capacitor Type:High Temperature; Voltage Rating:6.3VDC; Capacitor Dielectric Material:Aluminum Electrolytic; Operating Temperature Range:-55 C to ? C; Capacitance:680uF RoHS Compliant: No |
| LM104H | Negative Regulator |
| LM106 | Voltage Comparator |
| LM106H | Voltage Comparator |
相關代理商/技術參數 |
參數描述 |
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| LM2048CS-A | 制造商:CEC Industries 功能描述:LED BULB, CANDELABRA SCREW, AMBER, 720mW, Lamp Base Type:Candelabra Screw, LED Color:Amber, Bulb Size:T-6, Power Rating:720mW, Wavelength Typ:590nm, Average Bulb Life:100000h, Supply Voltage:48V, Current Rating:30mA, Color:Amber , RoHS Compliant: No |
| LM2048CS-B | 制造商:CEC Industries 功能描述:LED BULB, CANDELABRA SCREW, BLUE, 720mW, Lamp Base Type:Candelabra Screw, LED Co |
| LM2048CS-R | 制造商:CEC Industries 功能描述:Filament Replacement LED Lamp |
| LM2048CS-W | 制造商:CEC Industries 功能描述:LED BULB, CANDELABRA SCREW, WHITE, 720mW, Lamp Base Type:Candelabra Screw, LED Color:White, Bulb Size:T-6, Power Rating:720mW, Average Bulb Life:100000h, Supply Voltage:48V, Current Rating:30mA, Beam Divergence:360, Color:White , RoHS Compliant: No |
| LM2048CS-WW | 制造商:CEC Industries 功能描述:LED BULB, CANDELABRA SCREW, WARM WHITE, 720mW, Lamp Base Type:Candelabra Screw, LED Color:Warm White, Bulb Size:T-6, Power Rating:720mW, Average Bulb Life:100000h, Supply Voltage:48V, Current Rating:30mA, Beam Divergence:360 , RoHS Compliant: No |
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