Standard Products
VRG8609/10
Dual Adjustable Negative Voltage Regulators
Radiation Tolerant
www.aeroflex.com/RadHard
September 23, 2008
FEATURES
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Manufactured using
Linear Technology Corporation
®
Space Qualified RH137 die
❑
Packaging – Hermetic metal
Radiation performance
- Total dose > 100 krad (Si)
- Thru-hole or Surface mount
Thermal shutdown
- 6 Leads, .65"w x .42"l x .200"ht
Output voltage adjustable: -1.2V to -27V
- Power package
3-Terminal
- Weight - 5 gm max
Output current: 1.5A
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Designed for aerospace and high reliability
Voltage reference: 1.25V ±4%
space applications
Load regulation: 0.3% max
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DESC SMD: 5962-05219 approved
Line regulation: 0.01% max
Ripple rejection: >66dB
NOTE: Aeroflex Plainview does not currently have a DSCC certified Radiation Hardened Assurance Program
DESCRIPTION
The Aeroflex Plainview VRG8609/10 consists of two negative (RH137) voltage regulators each capable of supplying
in excess of 1.5Amps over the output voltage range as defined under recommended operating conditions. Each
regulator is exceptionally easy to set-up, requiring only 2 external resistors to set the output voltage. The module
design has been optimized for excellent regulation and low thermal transients. There is full electrical isolation between
the regulators and each regulator to the package.
Further, the VRG8609/10 features internal current limiting, thermal shutdown and safe-area compensation, making
them virtually blowout-proof against overloads. The VRG8609/10 serves a wide variety of applications including
local on-card regulation, programmable output voltage regulation or precision current regulation.
The VRG8609/10 has been specifically designed to meet exposure to radiation environments. The VRG8609 is
configured for a Thru-Hole 6 lead metal power package and the VRG8610 is configured for a Surface Mount 6 lead
metal power package. It is guaranteed operational from -55°C to +125°C. Available screened to MIL-STD-883, the
VRG8609/10 is ideal for demanding military and space applications.
For detailed performance characteristic curves, applications information and typical applications see the
latest
Linear Technology Corporation
®
data sheets for their RH/LT137, which is available on-line at
www.linear.com.
1
ADJ
2
V
OUT
RH137
Negative
Regulator
V
IN
3
ADJ
V
OUT
RH137
Negative
Regulator
V
IN
5
6
4
FIGURE 1 – BLOCK DIAGRAM / SCHEMATIC
SCD8609 Rev B
ABSOLUTE MAXIMUM RATINGS
PARAMETER
Operating (Junction) Temperature Range
Lead Temperature (soldering, 10 sec)
Storage Temperature Range
Input-Output Voltage Differential
Thermal Resistance (junction to case
Θ
JC
) each, Pos. & Neg.
ESD Rating
RANGE
-55 to +150
300
-65 to +150
30 (Neg)
5
1.999
1/
UNITS
°C
°C
°C
V
°C/W
KV
1/ Meets ESD testing per MIL-STD-883, method 3015, Class 1C.
NOTICE: Stresses above those listed under "Absolute Maximums Rating" may cause permanent damage to the device. These are stress rating
only; functional operation beyond the "Operation Conditions" is not recommended and extended exposure beyond the "Operation
Conditions" may effect device reliability.
RECOMMENDED OPERATING CONDITIONS
PARAMETER
Output Voltage Range
Case Operating Temperature Range
RANGE
-1.2 to -27
-55 to +125
UNITS
V
DC
°C
ELECTRICAL PERFORMANCE CHARACTERISTICS 1/
PARAMETER
Reference Voltage
Line Regulation 2/
Load Regulation 2/
Thermal Regulation
Ripple Rejection
Adjustment Pin Current
Adjustment Pin Current
Change
Minimum Load Current 3/
Current Limit
I
ADJ
SYM
V
REF
CONDITIONS (P
≤
P
MAX
)
3V < (V
IN
- V
OUT
) < V
DIFF MAX
, 10mA < I
OUT
< I
MAX
3V < (V
IN
- V
OUT
) < 30V,
10mA < I
OUT
< I
MAX
, V
OUT
< 5V
10mA < I
OUT
< I
MAX
, V
OUT
> 5V
I
OUT
= 1.5A, (V
IN
- V
OUT
) = 13.3V, 20ms Pulse, 20W,
T
C
= +25°C
V
OUT
= -10V, f = 120Hz, C
ADJ
= 10µF
MIN
-1.200
-
-
-
-
66
-
10mA < I
OUT
< I
MAX
3V < (V
IN
- V
OUT
) < 30V
I
MIN
I
MAX
(V
IN
- V
OUT
) = 30V
(V
IN
- V
OUT
) < 10V
(V
IN
- V
OUT
) < 15V
(V
IN
- V
OUT
) = 30V, T
C
= +25°C
Long Term Stability 3/
Thermal Resistance, each
Regulator
(Junction to Case) 3/
-
-
-
-
1.5
0.24
-
-
MAX
-1.300
0.02
25
0.5
0.02
-
100
5
5
5
3
-
-
1
5
UNITS
V
%/V
mV
%
%/W
dB
µA
µA
mA
A
%
°C/W
Δ
V
OUT
Δ
V
IN
Δ
V
OUT
Δ
I
OUT
Δ
I
ADJ
Δ
V
OUT
T
A
= +125°C
Δ
T
IME
Θ
JC
Notes:
1. Unless otherwise specified, these specifications apply for post radiation, (Vin - Vout) = 5V, Iout = 0.5A and -55°C < Tc < +125°C.
2. Regulation is measured at a constant junction temperature, using pulse testing with a low duty cycle. Changes in output voltage due to
heating effects are covered under the specification for thermal regulation. Measurements taken at the output lead must be adjusted for lead
resistance.
3. Not tested. Shall be guaranteed to the specified limits.
SCD8609 Rev B 9/23/08
2
Aeroflex Plainview
60
50
40
Maximum Power
Dissipation
(Watts)
30
20
Both Regulators
1 Regulator
10
0
0
20
40
60
80
100
120
140
Case Temperature (°C)
FIGURE 2 – MAXIMUM POWER vs CASE TEMPERATURE
The maximum Power dissipation is limited by the thermal shutdown function of each regulator chip in the VRG8609/10. The
graph above represents the achievable power before the chip shuts down. The first line in the graph represents the maximum
power dissipation of the VRG8609/10 with one regulator on (the other off) and the other line represents both regulators on
dissipating equal power. If both regulators are on and one regulator is dissipating more power that the other, the maximum power
dissipation of the VRG8609/10 will fall between the two lines. This graph is based on the maximum junction temperature of
150°C and a thermal resistance (
Θ
JC
) of 5°C/W.
V
IN
VRG8609/10
V
REF
ADJ
R1
V
OUT
V
REF
= 1.25V, I
ADJ
= 50µA
-Reg = V
OUT
= -V
REF
(1+R2/R1) + (-I
ADJ
x R2)
R2
Adjustable Regulator
FIGURE 3 – TYPICAL APPLICATIONS
SCD8609 Rev B 9/23/08
3
Aeroflex Plainview
TABLE I – PIN NUMBERS vs FUNCTION
PIN
1
2
3
4
5
6
FUNCTION
NEG_ADJ_1
NEG_V
OUT
_1
NEG_V
IN
_1
NEG_ADJ_2
NEG_V
IN
_2
NEG_V
OUT
_2
.200
.100
.108
.123
ø
.010
CBA
ø
.145 THRU
2x .028
MAX.
M
.150 REF.
6
5
4
2° MAX. TYP.
.415
.2075
–C–
R.030 TYP.
4 PLCS
1
2
3
.720 ±.020
MEASURED
LEAD TIP
ESD/PIN 1
IDENT
.230 MIN
.415 SQ
.655
–B–
.122
±.003
.220 MAX.
±.005
–A–
ø
.010
BCA
.040
.030 DIA.
±.002
ø
.010
M
CBA
Notes:
1. Dimension Tolerance: ±.005 inches
2. Package contains BeO substrate
3. Case electrically isolated
FIGURE 4 – PACKAGE OUTLINE — THRU-HOLE POWER PACKAGE
SCD8609 Rev B 9/23/08
4
Aeroflex Plainview
TABLE II – PIN NUMBERS vs FUNCTION
PIN
1
2
3
4
5
6
FUNCTION
NEG_ADJ_1
NEG_V
OUT
_1
NEG_V
IN
_1
NEG_ADJ_2
NEG_V
IN
_2
NEG_V
OUT
_2
.200
.100
.108
.123
ø
.010
CBA
ø
.145 THRU
2x .028
MAX.
M
.150 REF.
.060
6
5
4
.415
.2075
–C–
R.030 TYP.
4 PLCS
1
2
3
.886 ±.020
ESD/PIN 1
IDENT
.415 SQ
.655
–B–
.122
±.003
.220 MAX.
±.005
–A–
.015
.040
.030 DIA.
±.002
ø
.010
ø
.010
M
BCA
CBA
Notes:
1. Dimension Tolerance: ±.005 inches
2. Package contains BeO substrate
3. Case electrically isolated
FIGURE 5 – PACKAGE OUTLINE — SURFACE MOUNT POWER PACKAGE
SCD8609 Rev B 9/23/08
5
Aeroflex Plainview
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