RH137
Negative Adjustable Regulator
DESCRIPTION
The
RH137
negative adjustable regulator will deliver up
to 1.5A output current over an output voltage range of
–1.2V to –22V.
Every effort has been made to make these devices easy
to use and difficult to damage. Internal current and power
limiting coupled with true thermal limiting prevents device
damage due to overloads or shorts, even if the regulator
is not fastened to a heat sink.
Maximum reliability is attained with Analog Device’s
advanced processing techniques combined with a 100%
burn-in in the thermal limit mode. This assures that all
device protection circuits are working and eliminates field
failures experienced with other regulators that receive
only standard electrical testing.
The wafer lots are processed to Analog Device’s in-house
Class S flow to yield circuits usable in stringent military
applications.
ABSOLUTE MAXIMUM RATINGS
Power Dissipation ............................... Internally Limited
Input-to-Output Voltage Differential .........................30V
Operating Junction
Temperature Range ......................... –55°C to 150°C
Storage Temperature Range .................. –65°C to 150°C
Lead Temperature (Soldering, 10 sec)................... 300°C
All registered trademarks and trademarks are the property of their respective owners.
BURN-IN CIRCUIT
PACKAGE/ORDER INFORMATION
BOTTOM VIEW
1
ADJ
2
3
CASE IS INPUT
H PACKAGE
3-LEAD TO-39 METAL CAN
BOTTOM VIEW
V
OUT
2
CASE
IS V
IN
1
ADJ
K PACKAGE
2-LEAD TO-3 METAL CAN
(STEEL)
V
OUT
V
IN
RH137
–30V
V
IN
ADJ
2k
243Ω
OUTPUT
RH137 BI
Note: Obsolete K Package – For Reference Only.
Rev. D
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1
RH137
TABLE 1. ELECTRICAL CHARACTERISTICS
SYMBOL PARAMETER
V
REF
Reference Voltage
CONDITIONS
|V
IN
– V
OUT
| = 5V, I
OUT
= 10mA
3V ≤ |V
IN
– V
OUT
| ≤ 30V,
10mA ≤ I
OUT
≤ I
MAX
, P ≤ P
MAX
∆V
OUT
∆V
IN
∆V
OUT
∆I
OUT
(Preirradiation) (Note 1)
T
A
= 25°C
SUB-
GROUP
1
1
1
1
1
1
66
100
1
1
1
1
1
1
1
1
1
0.6
1
0.003
0.5
1.5
100
5
5
5
3
2, 3
2, 3
2, 3
2, 3
2, 3
2, 3
2, 3
5
5
5
3
–1.200
–1.300
0.05
50
1
2, 3
2, 3
2, 3
2, 3
–55°C ≤ T
A
≤ 150°C
MIN
TYP
SUB-
MAX GROUP UNITS
V
V
%/V
mV
%
%/W
dB
dB
µA
µA
µA
mA
mA
A
A
A
A
%
%
%
15
3
°C/W
°C/W
NOTES
MIN
–1.225
–1.200
TYP
MAX
–1.275
–1.300
0.02
25
0.5
0.02
Line Regulation
Load Regulation
Thermal Regulation
Ripple Rejection
3V ≤ |V
IN
– V
OUT
| ≤ 30V
10mA ≤ I
OUT
≤ I
MAX
, |V
OUT
| ≤ 5V
10mA ≤ I
OUT
≤ I
MAX
, |V
OUT
| ≥ 5V
10ms Pulse
V
OUT
= –10V, f = 120Hz, C
ADJ
= 0
V
OUT
= –10V, f = 120Hz, C
ADJ
= 10µF
2
2
2
60
3
66
I
ADJ
∆I
ADJ
I
MIN
Adjust Pin Current
Adjust Pin Current
Change
Minimum Load
Current
Current Limit
10mA ≤ I
OUT
≤ I
MAX
3V ≤ |V
IN
– V
OUT
| ≤ 30V
|V
IN
– V
OUT
| = 30V
|V
IN
– V
OUT
| ≤ 10V
|V
IN
– V
OUT
| ≤ 15V
|V
IN
– V
OUT
| = 30V
H Package
K Package
H Package
K Package
5
5
5
5
3
3
0.5
1.5
0.15
0.24
∆V
OUT
Temperature Stability –55°C ≤ T
J
≤ 125°C
∆Temp
∆V
OUT
Long Term Stability T
A
= 125°C
∆Time
e
n
θ
JC
RMS Output Noise
Thermal Resistance
(Junction to Case)
10Hz ≤ f ≤ 10kHz
H Package
K Package
3
3
TABLE 1A. ELECTRICAL CHARACTERISTICS
10KRAD(Si)
SYMBOL PARAMETER CONDITIONS
V
REF
Reference
Voltage
Line
Regulation
Load
Regulation
|V
IN
– V
OUT
| ≤ 5V, I
OUT
= 10mA
3V ≤ |V
IN
– V
OUT
| ≤ 30V,
10mA ≤ I
OUT
≤ I
MAX
, P ≤ P
MAX
3V ≤ |V
IN
– V
OUT
| ≤ 30V
10mA ≤ I
OUT
≤ I
MAX
, |V
OUT
| ≤ 5V
10mA ≤ I
OUT
≤ I
MAX
, |V
OUT
| ≥ 5V
2
NOTES
MIN
–1.2
MAX
–1.3
0.02
MIN
–1.2
(Postirradiation) (Note 4)
50KRAD(Si)
MIN
–1.2
MAX
–1.3
0.02
100KRAD(Si)
MIN
–1.2
MAX
–1.3
0.02
200KRAD(Si)
MIN
–1.2
MAX UNITS
V
V
%/V
–1.3
0.02
20KRAD(Si)
MAX
–1.3
0.02
–1.225 –1.275 –1.225 –1.275 –1.225 –1.275 –1.225 –1.275 –1.22 –1.28
∆V
OUT
∆V
IN
∆V
OUT
∆I
OUT
2
2
25
0.5
25
0.5
25
0.5
25
0.5
25
0.5
mV
%
2
Rev. D
For more information
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RH137
TABLE 1A. ELECTRICAL CHARACTERISTICS
10KRAD(Si)
SYMBOL PARAMETER
I
ADJ
∆I
ADJ
I
MIN
Adjust Pin
Current
Adjust Pin
Current
Change
Minimum
Load Current
Current Limit
H Package
K Package
10mA ≤ I
OUT
≤ I
MAX
3V ≤ |V
IN
– V
OUT
| ≤ 30V
|V
IN
– V
OUT
| = 30V
|V
IN
– V
OUT
| ≤ 10V
|V
IN
– V
OUT
| ≤ 15V
|V
IN
– V
OUT
| = 30V
|V
IN
– V
OUT
| ≤ 15V
|V
IN
– V
OUT
| = 30V
0.5
0.15
1.5
0.24
CONDITIONS
NOTES
MIN
MAX
100
5
5
5
3
0.5
0.15
1.5
0.24
MIN
(Postirradiation) (Note 4)
50KRAD(Si)
MIN
MAX
100
5
5
5
3
0.5
0.15
1.5
0.24
0.5
0.15
1.5
0.24
100KRAD(Si)
MIN
MAX
100
5
5
5
3
0.5
0.15
1.5
0.24
200KRAD(Si)
MIN
MAX
100
5
5
5
3
UNITS
µA
µA
µA
mA
mA
A
A
A
A
20KRAD(Si)
MAX
100
5
5
5
3
Note 1:
Unless otherwise specified, these specifications apply for
|V
IN
– V
OUT
| = 5V; and I
OUT
= 0.1A for the H Package (TO-39) and
I
OUT
= 0.5A for the K Package (TO-3). Although power dissipation is
internally limited, these specifications are applicable for power dissipations
of 2W for the TO-39 and 20W for the TO-3. I
MAX
is 0.2A for the TO-39 and
1.5A for the TO-3 package.
Note 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.
Note 3:
Guaranteed by design, characterization or correlation to other
tested parameters.
Note 4:
T
J
= 25°C unless otherwise noted.
Note 5:
ISC is tested at the ambient temperatures of 25°C and –55°C.
ISC cannot be tested at the maximum ambient temperature of 150°C due
to the high power level required. ISC specification at 150°C ambient is
guaranteed by characterization and correlation to 25°C testing.
TABLE 2. ELECTRICAL TEST REQUIREMENTS
MIL-STD-883 TEST REQUIREMENTS
Final Electrical Test Requirements (Method 5004)
Group A Test Requirements (Method 5005)
Group B and D End Point Electrical Parameters
(Method 5005)
* PDA Applies to subgroup 1. See PDA Test Notes.
SUBGROUP
1*, 2, 3
1, 2, 3
1, 2, 3
PDA Test Notes
The PDA is specified as 5% based on failures from group A, subgroup 1,
tests after cooldown as the final electrical test in accordance with method
5004 of MIL-STD-883. The verified failures of group A, subgroup 1, after
burn-in divided by the total number of devices submitted for burn-in in
that lot shall be used to determine the percent for the lot.
Analog Devices reserves the right to test to tighter limits than those given.
TOTAL DOSE BIAS CIRCUIT
+15V
2k
1
RH137
ADJ
OUTPUT
V
IN
CASE
–15V
RH137 TDBC
243Ω
2
Rev. D
Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog
Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. Specifications
subject to change without notice. No license
For more
by implication or otherwise under any patent or patent rights of Analog Devices.
is granted
information
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