42117
NEGATIVE HIGH TEMPERATURE
FIXED VOLTAGE REGULATOR
Designed to use in high temperature environments
Mii
HYBRID MICROELECTRONICS
PRODUCTS DIVISION
Features:
•
•
•
•
•
Operating temperature +200
°
C
Output current to 1.0 A
Output voltage to –30 V
Internal short circuit protection, foldback and
current limiting
Isolated TO-258 package
Applications:
•
•
Down hole
Harsh environment application
DESCRIPTION
The 42117 series of fixed voltage regulators covers the output voltage range from -5 VDC through -30 VDC. These voltage
regulators are fabricated using hybrid techniques and will operate at case temperatures up to +200
°
C. These devices are
complete with internal short circuit protection which includes voltage shutdown and current foldback. The 42117 series
voltage regulators normally do not require any additional components. However, for good design practice, an external filter
cap of 2
µ
F should be installed at the input, as close to the case as possible.
ABSOLUTE MAXIMUM RATINGS AT 200°C CASE TEMPERATURE
Output Current (I
OUT
) ............................................................................................................................................................ 1.0 A
Input Voltage (V
IN
) ......................................................................................................................................................... -38 VDC
Storage Temperature (T
STG
)............................................................................................................................................. +250°C
Power Dissipation Pd.............................................................................................................................................................. 8 W
Typical Connection Diagram
D1
HEADER
RECTIFIED
INPUT
V
IN
V
OUT
REGULATED
OUTPUT
2
-
AS REQUESTED
+
+
2uf
COMMON
-
AS REQUESTED
+
Note: D1 should be installed for input safety
Micropac Industries
cannot assume any responsibility for any circuits shown or represent that they are free from patent infringement.
Micropac
reserves the right to make changes at any time in order to improve design and to supply the best product possible.
MICROPAC INDUSTRIES, INC. HYBRID MICROELECTRONICS PRODUCTS DIVISION
•
905 E. Walnut St., Garland, TX 75040
•
(972) 272-3571
•
Fax (972) 494-2281
www.micropac.com
E-MAIL:
hybridsales@micropac.com
12/12/01
1
MII [ Micropac Industries ]
