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Электронный компонент: OM1860NTM

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3.3 - 83
3.3
OM1860NKM
Three Terminal, Positive Adjustable
Low Dropout Voltage Regulator In
Hermetic Packages
1 08 R3
Supersedes 4 11 R2
1.5 AMP LOW DROPOUT POSITIVE ADJUSTABLE
REGULATOR APPROVED TO DESC DRAWING 5962-89981
FEATURES
Similar To Industry Standard LT1086
Approved To DESC Standardized Military Drawing Number 5962-89981
Adjustable Output Voltage
Built In Thermal Overload Protection
Short Circuit Current Limiting
Maximum Output Voltage Tolerance is Guaranteed To 1%
Guaranteed Dropout Voltage At Multiple Current Levels
TO-257 Available in Isolated and Non-Isolated Packages
DESCRIPTION
This three terminal positive adjustable voltage regulator is designed to provide 1.5A
with higher efficiency than conventional voltage regulators. This device is designed
to operate to 1 Volt input to output differential and the dropout voltage is specified as
a function of load current. Supplied in easy-to-use hermetic TO-257, TO-3 and
TO-39 packages, this device is ideally suited for Military applications where small size
and high reliability is required.
ABSOLUTE MAXIMUM RATINGS
@ 25C
Power Dissipation (P
d
) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Internally Limited
Input - Output Voltage Differential . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 V
Operating Junction Temperature Range . . . . . . . . . . . . . . . . . . . . . - 55C to + 150C
Storage Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - 65C to + 150C
Lead Temperature (Soldering 10 seconds) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 300C
Thermal Resistance:
JC
(TO-257, Isolated) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.2C/W
JA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42C/W
JC
(TO-3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.0C/W
JA
(TO-3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35C/W
JC
(TO-39) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40C/W
JA
(TO-39) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140C/W
Maximum Output Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.5 A
Recommended Operating Conditions:
Output Voltage Range. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3.3V to 15 V
Ambient Operating Temperature Range (T
A
) . . . . . . . . . . . . . . . . - 55C to + 125C
Input Voltage Range. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5V to 25 V
OM1860STM
OM1860NHM
3.3 - 84
3.3
OM1860STM OM1860NKM OM1860NHM
ELECTRICAL CHARACTERISTICS
-55C
T
A
125C (unless otherwise specified)
Parameter
Symbol
Test Conditions
Min.
Max.
Unit
Reference Voltage
V
REF
V
IN
- V
OUT
= 3.0 V, T
A
= 25 C
1.238
1.262
V
I
OUT
= 10 mA
1.5 V
V
IN
- V
OUT
25 V,
1.220
1.270
V
10 mA
I
OUT
1.0 A
Line Regulation
V
OUT
1.5 V
V
IN
- V
OUT
15 V,
0.2
%
(Note 1)
V
IN
I
OUT
= 10 mA, T
A
= 25 C
15 V
V
IN
- V
OUT
35 V,
0.5
%
I
OUT
= 10 mA
Load Regulation
V
OUT
V
IN
- V
OUT
= 3.0 V, T
A
= 25 C
0.8
%
(Note 1)
I
OUT
10 mA
I
OUT
1.0 A
1.0
%
Dropout Voltage
V
DO
I
OUT
= 1.0 A,
V
REF
= 1%
1.5
V
Thermal Regulation
-
30 ms pulse, T
A
= +25 C
0.04
%/W
Ripple Rejection
V
IN
f = 120 Hz, C
Adj
= 25 F,
60
dB
V
OUT
C
OUT
= 25 F (tantalum), I
OUT
= 1.0 A,
V
IN
- V
OUT
= 3.0 V
Adjust Pin Current
I
Adj
1.5 V
V
IN
- V
OUT
25 V,
120
A
10 mA
I
OUT
1.0 A
Adjust Pin Current Change
I
Adj
1.5 V
V
IN
- V
OUT
25 V,
5.0
A
10 mA
I
OUT
1.0 A
Miminum Load Current
I
Min
V
IN
- V
OUT
= 25 V
10
mA
Current Limit
I
Lim
V
IN
- V
OUT
5.0 V
1.5
2.5
A
V
IN
- V
OUT
= 25 V
0.075
A
Temperature Stability
V
OUT
-55 C
T
J
+125 C
1.5
%
(Note 2)
T
Long Term Stability
V
OUT
T
A
= +125 C, t = 1000 hrs
1.0
%
(Note 2)
T
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 maximum power dissipation of 15 W.
Power dissipation is determined by the input/output differential voltage and the output current. 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.
PART NUMBER DESIGNATOR
Standard Military Drawing Number
Omnirel Part Number
Package
5962-8998101Y
OM1860NHM
TO-39
5962-8998101X
OM1860NKM
TO-3
5962-8998101U
OM1860STM
TO-257 (Isolated)
Part Numbering System
Voltage Regulators
OM-1860-S-T-M
Company
Identification
Part
Number
S= Isolated
N= Non isolated
Package
(see Package codes*)
Screening
M= MIL-M 38535
* Package Codes:
K= TO-204AA (TO-3)
H= TO-39
T= TO-257AA
3.3 - 85
OM1860STM OM1860NKM OM1860NHM
SHORT CIRCUIT CURRENT
INPUT/OUTPUT DIFFERENTIAL (V)
T
j
= -55C
30
SHORT CIRCUIT CURRENT (A)
0
5
10
15
20
25
0
0.5
1
1.5
2
2.5
T
j
= 25C
GUARANTEED
OUTPUT CURRENT
T
j
= 150C
TEMPERATURE STABILITY
TEMPERATURE (C)
150
OUTPUT VOLTAGE CHANGE (%)
-50
-25
0
50
75
125
-2.0
0
1.0
2.0
-1.0
25
100
ADJUSTMENT PIN CURRENT
TEMERATURE (C)
ADJUSTMENT PIN CURRENT (A)
0
20
40
60
90
100
80
70
50
30
10
150
-50
-25
50
75
125
25
100
0
RIPPLE REJECTION VS. CURRENT
OUTPUT CURRENT (A)
1.5
RIPPLE REJECTION (dB)
0
0.25
0.5
0.75
1
1.25
0
20
40
60
80
100
f
R
=20kHz
V
RIPPLE
3Vp-p
f
R
= 120Hz
C
OUT
=25F
V
RIPPLE
0.5Vp-p
C
ADJ
=25F
V
OUT
=5V
MINIMUM OPERATING CURRENT
INPUT/OUTPUT DIFFERENTIAL (V)
T
j
= 25C
MINIMUM OPERATING CURRENT (mA)
T
j
= 150C
T
j
= -55C
LOAD REGULATION
TEMPERATURE (C)
150
-50
-25
25
50
75
125
-0.20
-0.15
-0.10
0
0.05
0.10
I= 1.5A
-0.05
0
100
OUTPUT VOLTAGE DEVIATION (%)
30
0
5
10
15
20
25
7
10
9
8
6
5
4
3
2
1
0
35
90
70
50
30
10
V
RIPPLE
3Vp-p
V
RIPPLE
0.5Vp-p
3.3
OM1860STM OM1860NKM OM1860NHM
OUT
ADJ
IN
V
IN
V
+
TTL
2N3904
1k
1k
365
1%
121
1%
5V
V
10F
+
100F
OUT
ADJ
IN
V
V
R1
121
V
C2
100F
R2
5k
+
*NEEDED IF DEVICE IS FAR FROM FILTER CAPACITORS
OUT
V
OUT
=1.25V
)
R2
(
+
1 __
R1
C1
10F
+
1.2V - 15V Adjustable Regulator
5V Regulator with Shutdown
TYPICAL APPLICATIONS
OM1860
OM1860
1.197
1.177
0.675
0.655
0.188 R.
MAX.
0.440
0.420
0.161
0.151
0.525 R.
MAX.
0.225
0.205
SEATING
PLANE
0.312
MIN.
0.450
0.250
0.043
0.038
2 PLCS.
0.135
MAX.
0.875
MAX.
1.53
REF.
MECHANICAL OUTLINE TO-3
OM1860NKM
PIN OUT
1
Adjust
2
V
IN
Case
V
OUT
.430
.410
.200
.190
.038 MAX.
.005
.120 TYP.
.537
.527
.665
.645
.420
.410
.150
.140
.750
.500
.100 TYP.
.035
.025
.045
.035
MECHANICAL OUTLINE
OM1860STM
NOTES
Case is metal/hermetically sealed
Isolated Tab
4
1
2
3
PIN OUT
1
Adjust
2
V
OUT
3
V
IN
4
Isolated
MECHANICAL OUTLINE TO-39
OM1860NHM TO-39
Pin 1
Adjust
Pin 2
Input
Case
Output