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UC2838 Datenblatt(PDF) 2 Page - Texas Instruments

Teilenummer UC2838
Bauteilbeschribung  MAGNETIC AMPLIFIER CONTROLLER
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Hersteller  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
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UC2838 Datenblatt(HTML) 2 Page - Texas Instruments

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UC2838, UC2838A
UC3838, UC3838A
SLUS221A – APRIL 2000 – REVISED MAY 2001
2
www.ti.com
description (continued)
The UC3838/A contains a precision 2.5-V reference, two uncommitted high-gain operational amplifier and a
high-gain PNP-equivalent current source which can deliver up to 100 mA of magnetic amplifier reset current
and with –120-V capability.
These devices are available in a plastic batwing DIP (N), wide body SOIC (DW), and PLCC (Q) package for
operation over a –20
°C to 85°C temperature range.
19
20
1
32
17
18
16
15
14
13
12
11
9
10
5
4
6
7
8
RESET
N/C
N/C
GND
VM
C/L INV.IN
GND
N/C
N/C
E/A INV.IN
Q PACKAGE
(TOP VIEW)
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
C/L OUT
C/L N.I. IN
C/L INV. IN
GND
GND
E/A INV. IN
E/A N.I. IN
E/A OUT
DR2
DR1
RESET
GND
GND
VM
VCC
VREF
DW AND N PACKAGES
(TOP VIEW)
absolute maximum ratings over operating free-air temperature (unless otherwise noted)
Supply voltage, VCC
40 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Magnetic amplifier source voltage, VM
40 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Reset output voltage, VR
–120 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Total current source voltage, VM – VR
–140 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Amplifier input range
–0.3 V to VCC
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Reset input current, DR1 and DR2
–10 mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power dissipation at TA = 25°C
Q, N, DW package
2 W
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power dissipation at T (leads/case) = 25
°C
Q, N, DW package
5 W
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating temperature range, TJ
–55
°C to 125°C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature range, Tstg
–65
°C to 150°C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lead temperature (soldering, 10 sec)
300
°C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
† Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
‡ All voltages are with respect to ground pins. All currents are positive into the specified terminal. Consult packaging section of data book for thermal
limitations and considerations of package.


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