3.5 - 17
3.5
Three Terminal, Precision Adjustable
Positive Voltage Regulator In Hermetic
Style Packages (LM117A)
4 11 R2
Supersedes 1 07 R1
1.5 AMP POSITIVE ADJUSTABLE VOLTAGE
REGULATOR APPROVED TO DESC DRAWING 7703405
OM1324STM
OM1324N2M
OM1324NMM
OM1324NTM
OM1324SMM
OM1324NKM
FEATURES
• Similar To Industry Standard LM117A
• Approved To DESC Standardized Military Drawing Number 7703405
• Built In Thermal Overload Protection
• Short Circuit Current Limiting
• Available In Six Package Styles
• Maximum Output Voltage Tolerance Is Guaranteed to + 1%
DESCRIPTION
These three terminal positive regulators are supplied in hermetically sealed
packages. All protective features are designed into the circuit, including thermal
shutdown, current-limiting, and safe-area control. With heat sinking, these devices
can deliver up to 1.5 amps of output current. The LCC-20 device is limited to .5
amps. The unit also features output voltages that can be fixed from 1.2 volts to 37
volts using external resistors.
ABSOLUTE MAXIMUM RATINGS T
c
@ 25°C
Power Dissipation
Case 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.1 W
Case-All Others. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 W
Input - Output Voltage Differential . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 V
Operating Junction Temperature Range . . . . . . . . . . . . . . . . . . . . . - 55°C to + 150°C
Storage Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - 65°C to + 150°C
Lead Temperature (Soldering 10 seconds) . . . . . . . . . . . . . . . . . . . . . . . . . . . 300°C
Thermal Resistance, Junction to Case:
Case 2, LCC-20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17°C/W
Case U & M, TO-257 (Isol) and SMD-3 . . . . . . . . . . . . . . . . . . . . . . . . . . 4.2°C/W
Case T&N, TO-257 (Non-Isol) and SMD-1 . . . . . . . . . . . . . . . . . . . . . . . 3.5°C/W
Case Y, TO-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.0°C/W
Maximum Output Current:
Case 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 A
Case-All Others. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.5A
Recommended Operating Conditions:
Output Voltage Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1.2 to 37 VDC
Ambient Operating Temperature Range (TA). . . . . . . . . . . . . . . . - 55°C to + 125°C
Input Voltage Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.25 to 41.25 VDC
Please see mechanical
outlines herein
3.5 - 18
3.5
OM1324NTM, OM1324STM, OM1324NKM, OM1324SMM, OM1324NMM, OM1324N2M
Parameter Symbol Test Conditions Min. Max. Unit
Reference Voltage V
REF
V
DIFF
= 3.0V, TA= 25°C 1.238 1.262
V
DIFF
= 3.3V
• 1.225 1.270 V
V
DIFF
= 40V • 1.225 1.270
Line Regulation R
LINE
3.0V ≤ V
DIFF
≤ 40V, V
out
= V
ref
, TA= 25°C -4.5 4.5 mV
(Note 1) 3.3V ≤ V
DIFF
≤ 40V, V
out
= V
ref
•-9 9
Load Regulation R
LOADVDIFF
= 3.0V, 10mA ≤ IL≤ 1.5A, TA= 25°C -15 15
(Note 1) V
DIFF
= 3.3V, 10mA ≤ IL≤1.5A • -15 15 mV
V
DIFF
= 40V, 10mA ≤ IL≤ 300mA, TA= 25°C -15 15
V
DIFF
= 40V, 10mA ≤ IL≤ 195mA • -15 15
Thermal Regulation V
RTH
Vin= 14.6V, IL= 1.5A -5 5 mV
P
d
= 20 Watts, t = 20 ms, TA= 25°C
Ripple Rejection R
N
f = 120 Hz, V
out
= V
ref
• 66 dB
(Note 2) C
Adj
= 10 µF
Adjustment Pin Current I
Adj
V
DIFF
= 3.0V, TA= 25°C 100
V
DIFF
= 3.3V • 100 µA
V
DIFF
= 40V • 100
Adjustment Pin ∆I
AdjVDIFF
= 3.0V, 10mA ≤ IL≤ 1.5A, TA= 25°C -5 5
Current Change V
DIFF
= 3.3V, 10mA ≤ IL≤1.5A • -5 5
V
DIFF
= 40V, 10mA ≤ IL≤ 300mA, TA= 25°C -5 5
V
DIFF
= 40V, 10mA ≤ IL≤ 195mA • -5 5 µA
3.0V ≤ V
DIFF
≤ 40V, TA= 25°C -5 5
3.3V ≤ V
DIFF
≤ 40V • -5 5
Miminum Load Current I
Lmin
V
DIFF
= 3.0V, V
OUT
= 1.4V (forced) 5.0
V
DIFF
= 3.3V, V
OUT
= 1.4V (forced) • 5.0 mA
V
DIFF
= 40V, V
OUT
= 1.4V (forced) • 5.0
Current Limit I
CL
V
DIFF
= 15V • 1.5 3.5
(Note 2) V
DIFF
= 40V, TA= 25°C 0.18 1.5 A
Notes:
1. Load and Line Regulation are specified at a constant junction temperature. Pulse testing with low duty cycle is used.
Changes in output voltage due to heating effects must be taken into account separately.
2. If not tested, shall be guaranteed to the specified limits.
3. The
•denotes the specifications which apply over the full operating temperature range.
PART NUMBER DESIGNATOR
Standard Military Drawing Number Omnirel Part Number Omnirel Package Designation
7703405M OM1324SMM SMD-3
7703405U OM1324STM TO-257 (Isolated)
7703405T OM1324NTM TO-257 (non-Isolated)
7703405Y OM1324 NKM TO-3
7703405N OM1324NMM SMD-1
77034052 OM1324N2M LCC-20
ELECTRICAL CHARACTERISTICS -55°C ≤ T
A
≤ 125°C, IL= 8mA (unless otherwise specified)
OM1324NTM, OM1324STM, OM1324NKM, OM1324SMM, OM1324NMM
3.5 - 19
3.5
OM1324NTM, OM1324STM, OM1324NKM, OM1324SMM, OM1324NMM, OM1324N2M
OM1324STM
V
in
Cin*
0.1 µF
V
out
R
2
Adjust
I
Adj
R
1
240Ω
APPLICATION
*Cinis required if regulator is located an
appreciable distance from power supply filter.
** C
o
is not needed for stability, however it does
improve transient response.
V
out
= 1.25 V (1 + )+ I
Ad j R2
Since I
Adj
is controlled to less than 100 µA,
the error associated with this term is negligible
in most applications.
R
2
R
1
Parameter Symbol Test Conditions Min. Max. Unit
Reference Voltage V
REF
V
DIFF
= 3.0V, TA= 25°C 1.238 1.262
V
DIFF
= 3.3V • 1.225 1.270 V
V
DIFF
= 40V • 1.225 1.270
Line Regulation R
LINE
3.0V ≤ V
DIFF
≤ 40V, V
out
= V
ref
, TA= 25°C -4.5 4.5 mV
(Note 1) 3.3V ≤ V
DIFF
≤ 40V, V
out
= V
ref
•-9 9
Load Regulation R
LOADVDIFF
= 3.0V, 10mA ≤ IL≤ 500 mA, TA= 25°C -15 15
(Note 1) V
DIFF
= 3.3V, 10mA ≤ IL≤ 500 mA • -15 15 mV
V
DIFF
= 40V, 10mA ≤ IL≤ 150 mA, TA= 25°C -15 15
V
DIFF
= 40V, 10mA ≤ IL≤ 100 mA • -15 15
Thermal Regulation V
RTH
Vin= 14.6V, IL= 300 mA -2 2 mV
P
d
= 4.0 Watts, t = 20 ms, TA= 25°C
Ripple Rejection R
N
f = 120 Hz, V
out
= V
ref
• 66 dB
(Note 2) C
Adj
= 10 µF
Adjustment Pin Current I
Adj
V
DIFF
= 3.0V, TA= 25°C 100
V
DIFF
= 3.3V • 100 µA
V
DIFF
= 40V • 100
Adjustment Pin ∆I
AdjVDIFF
= 3.0V, 10mA ≤ IL≤ 500 mA, TA= 25°C -5 5
Current Change V
DIFF
= 3.3V, 10mA ≤ IL≤ 500 mA • -5 5
V
DIFF
= 40V, 10mA ≤ IL≤ 150mA, TA= 25°C -5 5
V
DIFF
= 40V, 10mA ≤ IL≤ 100mA • -5 5 µA
3.0V ≤ V
DIFF
≤ 40V, TA= 25°C -5 5
3.3V ≤ V
DIFF
≤ 40V • -5 5
Miminum Load Current I
Lmin
V
DIFF
= 3.0V, V
OUT
= 1.4V (forced) 5.0
V
DIFF
= 3.3V, V
OUT
= 1.4V (forced) • 5.0 mA
V
DIFF
= 40V, V
OUT
= 1.4V (forced) • 5.0
Current Limit I
CL
V
DIFF
= 15V • 0.5 1.65
(Note 2) V
DIFF
= 40V, TA= 25°C 0.15 0.65 A
Notes:
1. Load and Line Regulation are specified at a constant junction temperature. Pulse testing with low duty cycle is used.
Changes in output voltage due to heating effects must be taken into account separately.
2. If not tested, shall be guaranteed to the specified limits.
3. The
•denotes the specifications which apply over the full operating temperature range.
ELECTRICAL CHARACTERISTICS -55°C ≤ T
A
≤ 125°C, IL= 8mA (unless otherwise specified)
OM1324N2M
3.5
OM1324NTM, OM1324STM, OM1324NKM, OM1324SMM, OM1324NMM, OM1324N2M
OM1324SMM
Front View
Pin 1 - Adjust
Pin 2 - Input
Pin 3 - Output
Case - Isolated
OM1324STM OM1324NTM
Isolated Non-Isolated
Front View Front View
Pin 1 - Adjust Pin 1 - Adjust
Pin 2 - Output Pin 2 - Output
Pin 3 - Input Pin 3 - Input
Tab - Isolated Tab - Output
OM1324NMM
Pin 1 - Adjust
Pin 2 - Input
Pin 3 - Output
OM1324NKM
Pin 1 - Adjust
Pin 2 - Input
Case - Output
OM1324N2M
Pin 1 V
OUT
(Sense) Pin 11 NC
Pin 2 NC Pin 12 NC
Pin 3 NC Pin 13 NC
Pin 4 NC Pin 14 NC
Pin 5 V
IN
Pin 15 NC
Pin 6 NC Pin 16 NC
Pin 7 NC Pin 17 NC
Pin 8 NC Pin 18 NC
Pin 9 NC Pin 19 NC
Pin 10 ADJUST Pin 20 V
OUT
.430O
.410O
.200O
.190O
.038 MAX.O
.005O
O
.120 TYP.O
.537O
.527O
.665O
.645O
.420O
.410O
.150O
.140O
.750O
.500O
.100 TYP.O
.035O
.025O
.045O
.035O
MECHANICAL OUTLINE
.425O
.200O
O
O
O
.100O
.350 MIN.O
.080 O
O
.160O
.020O
± .020O
.035 WIDEO
FLAT 3 PLCS.O
.115O
.425O
.140
.415
.157
.015
.140
.140
.075
.075
.062
.375
.030
MIN.
.075 (±.010)
TYP.
.040.020 X45°
REF.
.040 X45°
REF (3 PL)
.010
.160
SQ. REF.
.065
.009 R.
20 PLCS.
3
1
19
18
14
4
13
9
.003
.050
TYP.
.050
(±.005)
TYP.
.085
.025 SQ.
TYP.
(±.003)
.025
TYP.
123
1
2
3
1
2
3
For additional information please see the mechanical outline section.
2
1
1.53
REF.
0.875
MAX.
0.043
0.038
2 PLCS.
0.135
MAX.
SEATING
PLANE
0.312
0.450
0.250
MIN.
0.188 R.
MAX.
0.225
0.205
1.197
1.177
0.675
0.440
0.655
0.420
0.161
0.151
0.525 R.
MAX.
Loading...