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Número de pieza | SG7905AIG | |
Descripción | NEGATIVE FIXED VOLTAGE REGULATOR | |
Fabricantes | Microsemi Corporation | |
Logotipo | ||
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No Preview Available ! SG7900A/SG7900 SERIES
SG7900A/SG7900
NEGATIVE FIXED VOLTAGE REGULATOR
DESCRIPTION
The SG7900A/SG7900 series of negative regulators offer self-contained,
fixed-voltage capability with up to 1.5A of load current. With a variety of
output voltages and four package options this regulator series is an
optimum complement to the SG7800A/SG7800, SG140 line of three
terminal regulators.
These units feature a unique band gap reference which allows the
SG7900A series to be specified with an output voltage tolerance of ±1.5%.
The SG7900A versions also offer much improved line regulation character-
istics.
All protective features of thermal shutdown, current limiting, and safe-area
control have been designed into these units and since these regulators
require only a single output capacitor (SG7900 series) or a capacitor and
5mA minimum load (SG120 series) for satisfactory performance, ease of
application is assured.
Although designed as fixed-voltage regulators, the output voltage can be
increased through the use of a simple voltage divider. The low quiescent
drain current of the device insures good regulation when this method is
used, especially for the SG120 series.
These devices are available in hermetically sealed TO-257, TO-3, TO-39
and LCC package.
FEATURES
• Output voltage set internally to ±1.5% on SG7900A
• Output current to 1.5A
• Excellent line and load regulation
• Foldback current limiting
• Thermal overload protection
• Voltages available: -5V, -12V, -15V
• Contact factory for other voltage options
• Available in surface mount package
HIGH RELIABILITY FEATURES
- SG7900A/SG7900
♦ Available to MIL-STD - 883
♦ MIL-M38510/11501BXA - JAN7905T
♦ MIL-M38510/11505BYA - JAN7905K
♦ MIL-M38510/11502BXA - JAN7912T
♦ MIL-M38510/11506BYA - JAN7912K
♦ MIL-M38510/11503BXA - JAN7915T
♦ MIL-M38510/11507BYA - JAN7915K
♦ LMI level "S" processing available
SCHEMATIC DIAGRAM
12/91 Rev 1.4 12/99
Copyright 1999
**
**
For normal
operation the (V )
OS
Sense Pin must be
externally
connected to the
load.
LINFINITY Microelectronics Inc.
11861 Western Avenue ∞ Garden Grove, CA 92841
1 (714) 898-8121 ∞FAX: (714) 893-2570
1 page SG7900A/SG7900 SERIES
-12V NEGATIVE REGULATOR
ELECTRICAL SPECIFICATIONS (Note 1)
(Unless otherwise specified, these specifications apply over the operating ambient temperatures for SG7912A/SG7912 with -55°C ≤ TA ≤ 150°C,
VIN = -19V, IO = 500mA for the K and IG -Power Packages-, IO = 100mA for the T and L packages, CIN = 2µF, and COUT = 1.0µF. Low duty cycle pulse
testing techniques are used which maintains junction and case temperatures equal to the ambient temperature.)
SG7912A/SG7912
Parameter
Output Voltage
Line Regulation (Note 1)
Load Regulation (Note 1)
Total Output Voltage
Tolerance
Quiescent Current
Quiescent Current Change
Dropout Voltage
Peak Output Current
Short Circuit Current
Ripple Rejection
Output Noise Voltage (rms)
Long Term Stability
Thermal Shutdown
Test Conditions
TJ = 25°C
VIN = -14.5V to -30V, TJ = 25°C
VIN = -16V to -22V, TJ = 25°C
Power Pkgs: IO = 5mA to 1.5A, TJ = 25°C
IO = 250mA to 750mA, TJ = 25°C
T - Pkg: IO = 5mA to 500mA, TJ = 25°C
VIN = -14.5V to -27V
Power Pkgs: IO = 5mA to 1.0A, P ≤ 20W
T
-
Pkg:
I
O
=
5mA
to
500mA,
P
≤
2W
Over Temperature Range
T = 25°C
J
with Line: VIN = -14.5V to -30V
with Load: I = 5mA to 1.0A (Power Packages)
O
IO = 5mA to 500mA (T)
∆VO = 100mV, TJ = 25°C
Power Pkgs: IO = 1.0A, T - Pkg: IO = 500mA
Power Pkgs: TJ = 25°C
T - Pkg: TJ = 25°C
Power Pkgs: VIN = -35V, TJ = 25°C
T - Pkg: VIN = -35V, TJ = 25°C
∆VIN = 10V, f = 120Hz, TJ = 25°C
f = 10Hz to 100KHz (Note 2)
1000hrs. at TJ = 125°C
I = 5mA
O
SG7912A
SG7912
Min. Typ. Max. Min. Typ. Max.
-11.8 -12.0 -12.2 -11.5 -12.0 -12.5
4 60
10 120
3 30
3 60
20 90
12 120
10 40
4 60
10 40
10 240
Units
V
mV
mV
mV
mV
mV
-11.7 -12.0 -12.3 -11.4 -12.0 -12.6
-11.7 -12.0 -12.3 -11.4 -12.0 -12.6
44
33
1.0 1.0
0.5 0.5
0.5 0.5
V
V
mA
mA
mA
mA
mA
1.1 2.3
1.5 3.3
0.5 1.4
1.2
0.6
54
25 80
60
175
1.1 2.3
1.5 3.3
0.5 1.4
0.2
0.6
54
25 80
60
175
V
A
A
A
A
dB
µV/V
mV
°C
Note 1. All regulation tests are made at constant junction temperature with low duty cycle testing.
2. This test is guaranteed but is not tested in production.
12/91 Rev 1.4 12/99
Copyright 1999
5
LINFINITY Microelectronics Inc.
11861 Western Avenue ∞ Garden Grove, CA 92841
(714) 898-8121 ∞FAX: (714) 893-2570
5 Page |
Páginas | Total 7 Páginas | |
PDF Descargar | [ Datasheet SG7905AIG.PDF ] |
Número de pieza | Descripción | Fabricantes |
SG7905AIG | NEGATIVE FIXED VOLTAGE REGULATOR | Microsemi Corporation |
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