OMNIREL OM1860STM, OM1860NKM, OM1860NHM Datasheet

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 @ 25°C
Power Dissipation (Pd) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Internally Limited
Input - Output Voltage Differential . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 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:
θJC(TO-257, Isolated) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.2°C/W
θJA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42°C/W
θJC(TO-3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.0°C/W
θJA(TO-3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35°C/W
θJC(TO-39) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40°C/W
θJA(TO-39) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140°C/W
Maximum Output Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.5 A
Recommended Operating Conditions:
Output Voltage Range. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3.3V to 15 V
Ambient Operating Temperature Range (T
A
) . . . . . . . . . . . . . . . . - 55°C to + 125°C
Input Voltage Range. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5V to 25 V
OM1860STM
OM1860NHM
3.3 - 84
3.3
OM1860STM OM1860NKM OM1860NHM
ELECTRICAL CHARACTERISTICS -55°C T
A
125°C (unless otherwise specified)
Parameter Symbol Test Conditions Min. Max. Unit
Reference Voltage V
REF
VIN- V
OUT
= 3.0 V, TA= 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 ≤VIN- V
OUT
≤15 V, 0.2 %
(Note 1) ∆V
IN
I
OUT
= 10 mA, TA= 25° C
15 V ≤V
IN
- V
OUT
≤35 V, 0.5 %
I
OUT
= 10 mA
Load Regulation ∆V
OUT
VIN- V
OUT
= 3.0 V, TA= 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 µF, 60 dB
V
OUT
C
OUT
= 25 µF (tantalum), I
OUT
= 1.0 A,
V
IN
- V
OUT
= 3.0 V
Adjust Pin Current I
Adj
1.5 V ≤VIN- V
OUT
≤25 V, 120 µA
10 mA ≤ I
OUT
1.0 A
Adjust Pin Current Change ∆I
Adj
1.5 V ≤VIN- V
OUT
≤25 V, 5.0 µA
10 mA ≤ I
OUT
1.0 A
Miminum Load Current I
Min
VIN- V
OUT
= 25 V 10 mA
Current Limit I
Lim
VIN- 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 ≤ TJ≤ +125° C 1.5 %
(Note 2) ∆T
Long Term Stability ∆V
OUT
TA= +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)
Tj= -55°C
30
SHORT CIRCUIT CURRENT (A)
0 5 10 15 20 25
0
0.5
1
1.5
2
2.5
Tj= 25°C
GUARANTEED
OUTPUT CURRENT
Tj= 150°C
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 (µA)
0
20
40
60
90
100
80
70
50
30
10
150-50 -25 50 75 12525 1000
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
fR=20kHz
V
RIPPLE
3Vp-p
fR= 120Hz
C
OUT
=25µF
V
RIPPLE
0.5Vp-p
C
ADJ
=25µF
V
OUT
=5V
MINIMUM OPERATING CURRENT
INPUT/OUTPUT DIFFERENTIAL (V)
Tj= 25°C
MINIMUM OPERATING CURRENT (mA)
Tj= 150°C
Tj= -55°C
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 (%)
300 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
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 2V
IN
Case V
OUT
MECHANICAL OUTLINE
OM1860STM
NOTES
Case is metal/hermetically sealed
Isolated Tab
4
123
PIN OUT
1 Adjust 2V
OUT
3V
IN
4 Isolated
MECHANICAL OUTLINE TO-39
OM1860NHM TO-39
Pin 1 Adjust Pin 2 Input Case Output
1.2V - 15V Adjustable Regulator 5V Regulator with Shutdown
VV
IN
C1 10µF
.420 .410
ADJ
R2
__
+
1
(
R1
+
*NEEDED IF DEVICE IS FAR FROM FILTER CAPACITORS
VOUT =1.25V )
.150 .140
V
+
.430 .410
OUT
C2 100µF
.200 .190
.045 .035
.038 MAX.
.005
R2 5k
.537 .527
.750 .500
OUT
R1 121
.665 .645
V
V
TTL
IN
IN
ADJ
+
10µF
2N3904
1k
1k
121 1%
365 1%
5V
+
100µF
OUT
V
.035 .025
.100 TYP.
.120 TYP.
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