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
42094
POSITIVE 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 225°C
• 200°C Operating temperature
Applications:
• Logging while drilling
• Measuring while drilling (down-hole applications)
• Other harsh environments
• Designed for use in high temperature
environments 200°c
DESCRIPTION
The 42094 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 capacitors be added
as close to the case as possible. A 2µf capacitor should be added to the input and a minimum of 1.5 µf capacitor 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
42094-005 5 1.5 2.0
42094-012 12 1.5 2.0
42094-015 15 1.5 2.0
42094-018 18 1.5 2.0
42094-024 24 1.5 2.0
42094-030 30 1.5 2.0
NOTE: Under condition (VIN – VOUT x lOUT) ≤ 25 watts at 200°C case. Micropac can provide custom output
voltages between 5VDC and 30VDC.
MICROPAC
MICROCIRCUITS PRODUCTS
DIVISION
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. 2 of 3
42094 POSITIVE HIGH TEMPERATURE REGULATOR
ELECTRICAL CHARACTERISTICS
PARAMETER TEST CONDITIONS TEMPERATURE
CASE TEMP TYPICAL
*Output Voltage IOUT = 300 mA
VIN = VOUT +3VDC
+25°C to +200°C VOUT ± 1.0%
*Line Regulation VIN = VOUT +3VDC
to VIN = 38VDC
IOUT = 50 mA
+25°C to +200°C VOUT ± 0.3%
Load Regulation VIN = VOUT +5VDC
IOUT = 50 to 300mA
+25°C to +200°C VOUT ± 0.5%
Ripple Rejection at 120 Hz VIN = VOUT +5VDC
+25°C -60dB
Standby Current VIN = VOUT +5VDC
IOUT = 0
+25°C 30mA
Short Circuit Current VIN = VOUT +5VDC +25°C 400mA
Short Circuit Current VIN = VOUT +5VDC +200°C 200mA
Foldback Current (knee) VIN = VOUT +5VDC
+25°C 2A
Foldback Current (knee) VIN = VOUT +5VDC +200°C 1.5A
Noise Output VIN = VOUT +5VDC
IOUT = 300 mA
+25°C 2mVRMS
Differential Voltage
* ( ∆V= VIN – VOUT )
IOUT = 300 mA +25°C to +200°C 3 VDC MIN
*VIN = 10V Min
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. 3 of 3
42094 POSITIVE HIGH TEMPERATURE REGULATOR
Mechanical Configuration
D1
INPUT
OUTPUT
-COMMON -
2uf
+ + +
RECTIFIED V
OUT
REGULATED
AS REQUESTED
V
IN
AS REQUESTED
HEADER
2
Electrical Connection
Case VIN
Pin 1 Ground
Pin 2 VOUT
