
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. MICROCIRCUITS PRODUCTS DIVISION
905 E. Walnut St., Garland, TX 75040 (972) 272-3571 Fax (972) 494-2281
www.micropac.com
E-MAIL: microsales@micropac.com
1/6/06 Rev C
Pg. 1 of
3
42095
NEGATIVE HIGH TEMPERATURE REGULATOR
Mii
Features:
Output current to 1.5 amps
Input voltage to -38V
Output voltage to –30V
Internal short circuit protection, foldback and
current limiting
Storage Temperature +250°C
200°C Operating temperature
Applications:
Logging while drilling
Measuring while drilling (down-hole applications)
Other harsh environments
Used as military and industrial devices
Designed for use in high temperature
environments
DESCRIPTION
The 42095 series of regulators covers the voltage range from -5 VDC through -30 VDC. These regulators are fabricated
using hybrid techniques and will operate at temperatures up to +200°C case. These devices are complete with internal short
circuit protection which includes voltage shutdown and current foldback. It is strongly recommended that input and output
capacitors be added as close to the case as possible. A 2f capacitor should be added to the input and a minimum of 1.5 f
should be added to the output. See typical connection diagram.
ABSOLUTE MAXIMUM RATINGS AT 200°C Case temperature
Output Current (IOUT) .............................................................................................................................................................1.5A
Input Voltage (VIN) .......................................................................................................................................................... -38VDC
Operating Temperature (TC)............................................................................................................................................... 200°C
Storage Temperature .........................................................................................................................................–65°C to 200°C
Power Dissipation (Pd)...........................................................................................................................................................25W
TABLE 1 (see note)
TYPE
VOUT VDC
MAX IOUT A
IKNEE TYP A
42095-005
-5
1.5
2.0
42095-012
-12
1.5
2.0
42095-015
-15
1.5
2.0
42095-018
-18
1.5
2.0
42095-024
-24
1.5
2.0
42095-030
-30
1.5
2.0
NOTE: Under condition (VIN – VOUT x lOUT) ≤ 25 watts at 200°C. Micropac can provide custom output
voltages between -5VDC and -30VDC.
MICROPAC
MICROCIRCUITS PRODUCTS
DIVISION