OM7627NM
HERMETIC SURFACE MOUNT ADJUSTABLE
NEGATIVE VOLTAGE REGULATORS
Three Terminal, Adjustable Voltage,
3.0 Amp Precision Negative Regulators
In Hermetic Surface Mount Package
FEATURES
•
•
•
•
•
Hermetic Surface Mount Package
Reference Voltage Set Internally To ±2%
Built-In Thermal Overload Protection
Short Circuit Current Limiting
Product Is Available Hi-Rel Screened
DESCRIPTION
These three terminal negative regulators are supplied in a hermetic surface mount
package. All protective features are designed into the circuit including thermal
shutdown, current limiting and safe-area control. With heat sinking, they can deliver
over 3.0 amps of output current. These units feature 2% initial voltage tolerance, with
1.0% load regulation and .015% line regulation.
ABSOLUTE MAXIMUM RATINGS
Input to Output Voltage Differential . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -35 V
Operating Junction Temperature Range. . . . . . . . . . . . . . . . . . . . . . . . - 55°C to + 150°C
Storage Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - 55°C to + 150°C
Typical Power/Thermal Characteristics:
Rated Power @ 25°C
T
C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28W
T
A
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3W
Thermal Resistance:
θ
JC
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.5°C/W
θ
JA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42°C/W
Lead Temperature at Case (5 sec)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 225°C
PIN CONNECTION
1
2
MECHANICAL OUTLINE
.140
.500
.015
.075
.157
.140
.140
.075
.030
MIN.
3.5
Pin 1: Adjust
Pin 2: V
OUT
3
625
Pin 3: V
IN
.415
.062
.375
TOP VIEW
SIDE VIEW
BOTTOM VIEW
4 11 R1
Supersedes 1 05 R0
3.5 - 115
OM7627NM
ELECTRICAL CHARACTERISTICS
Parameter
Reference Voltage
Symbol
V
REF
-55°C ≤ T
A
≤ +125°C (unless otherwise specified)
Min.
-1.238
Max.
-1.262
V
-1.215
-1.285
0.015
%/V
0.04
50
mV
75
1.0
%
1.5
0.02
56
%/W
dB
53
70
dB
60
100
2.0
µA
5.0
5.0
mA
3.0
3.0
6.0
A
3.0
0.5
2.5
A
0.5
1.5
%
µA
Unit
Test Conditions
V
IN
- V
OUT
= 5 V, I
OUT
= 5 mA, T
A
= 25° C
3 V ≤
V
IN
- V
OUT
≤ 35 V
•
•
•
•
Line Regulation
(Note 1)
Load Regulation
(Note 1)
∆V
OUT
∆V
IN
∆V
OUT
∆I
OUT
3 V ≤
V
IN
- V
OUT
≤ 35 V
V
OUT
≤ 5 V, T
A
= 25° C
10 mA ≤ I
OUT
≤ I
MAX.
V
OUT
≥
5.0 V
10 mA ≤ I
OUT
≤ I
MAX.
Thermal Regulation
Ripple Rejection
(Note 2)
-
∆V
IN
∆V
REF
30 ms pulse, T
A
= 25° C
V
OUT
=
-10 V, f = 120 Hz, C
Adj
= 0
V
OUT
=
-10 V, f = 120 Hz, C
Adj
= 10 µF
•
•
•
•
•
•
•
•
•
•
Adjust Pin Current
Adjust Pin Current Change
I
Adj
∆I
Adj
V
DIFF
= 35 V, I
L
= 10 mA
10 mA ≤ I
OUT
≤ I
MAX.
3 V ≤
V
IN
- V
OUT
≤ 35 V
V
IN
- V
OUT
≤ 35 V
V
IN
- V
OUT
≤ 10 V
Minimum Load Current
I
Min
Current Limit
I
Lim
V
IN
- V
OUT
≤ 10 V
V
IN
- V
OUT
= 35 V
Temperature Stability
(Note 2)
Long Term Stability
(Note 2)
∆V
OUT
∆T
∆V
OUT
∆T
-55° C ≤ T
J
≤ +125° C
T
A
= +125° C, t = 1000 hrs
1.0
%
Notes:
1. Line and Load Regulation are measured at a constant junction temperature using a low duty cycle pulse technique.
Although power dissipation is internally limited, regulation is guaranteed up to the maxim
um power dissipation of 30 W.
Power dissipation is determined by the input/output differential voltage and the output curren
t. Guaranteed maximum
power dissipation will not be available over the full input/output voltage range.
2. Guaranteed by design, characterization or correlation to other tested parameters.
3. The • denotes the specifications which apply over the full operating temperature range.
3.5
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