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Электронный компонент: OM7812AIH

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3.3 - 217
3.3
4 11 R4
Supersedes 1 07 R3
OM7800IH Series
Three Terminal, Fixed Voltage, 1.5 Amp
Precision Positive Regulators In Hermetic
JEDEC TO-257AA Package
ISOLATED HERMETIC TO-257AA FIXED
VOLTAGE REGULATORS
FEATURES
Isolated Hermetic Package, JEDEC TO-257AA Outline
Output Voltages: 5V, 12V, 15V (Other Voltages Available)
Output Voltages Set Internally To 1% or 2%
Built-In Thermal Overload Protection
Short Ciruit Current Limiting
Product Is Available Screened To OM803
DESCRIPTION
These three terminal positive regulators are supplied in a hermetically sealed
metal package whose outline is similar to the industry standard TO-220 plastic 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 1.5 amps of output
current. These units feature internally trimmed output voltages to 1% or 2% of nominal
voltage. Standard voltages are 5V, 12V, and 15V. However, other voltages are available
up to 24 volts. These units are ideally suited for Military applications where a hermetically
sealed package is required.
ABSOLUTE MAXIMUM RATINGS
@ 25C
Input Voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 V
Operating Junction Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . - 55C to + 150C
Storage Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - 65C to + 150C
Typical Power/Thermal Characteristics:
Rated Power @ 25 C
T
C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17.5W
T
A
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3W
Thermal Resistance
q
JC
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.2C/W
q
JA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42C/W
Notes: Product also available in Non-Isolated construction. To order this version,
delete "I" from part number.
Example:
Isolated
Non-Isolated
OM78XXIH
OM78XXH
Use letter "A" after part number to designate 1% output voltage tolerance.
Example:
OM7805AIH
3.3 - 218
3.3
OM7800IH Series
ELECTRICAL CHARACTERISTICS 12 Volt
V
IN
= 19V, I
o
= 500mA, -55C T
A
125C (unless otherwise specified)
Parameter
Symbol
Test Conditions
Min.
Max.
Unit
Output Voltage
V
OUT
T
A
= 25C
11.88
12.12
V
V
IN
= 14.5V to 27V
11.64
12.36
V
Line Regulation
V
RLINE
V
IN
= 14.5V to 27V
18
mV
(Note 1)
50
mV
V
IN
= 16V to 22V
9
mV
30
mV
Load Regulation
V
RLOAD
I
O
= 5mA to 1.5 Amp
32
mV
(Note 1)
60
mV
I
O
= 250mA to 750 mA
20
mV
40
mV
Standby Current Drain
I
SCD
6.0
mA
6.5
mA
Standby Current Drain
D
I
SCD
V
IN
= 15V to 30V
0.8
mA
Change With Line
(Line)
Standby Current Drain
D
I
SCD
I
O
= 5mA to 1000mA
0.5
mA
Change With Load
(Load)
Dropout Voltage
V
DO
D
V
OUT
= 100mV, I
O
=
1.0A
2.5
V
Peak Output Current
I
O (pk)
T
A
= 25C
1.5
3.3
A
Short Circuit Current
I
DS
V
IN
= 35V
1.2
A
(Note 2)
2.8
A
Ripple Rejection
D
V
IN
f =120 Hz,
D
V
IN
= 10V
61
dB
D
V
OUT
(Note 3)
54
dB
Output Noise Voltage
N
O
T
A
= 25C, f =10 Hz to 100KHz
40
V/V
(Note 3)
RMS
Long Term Stability
D
V
OUT
T
A
= 25C, t = 1000 hrs.
120
mV
(Note 3)
D
t
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. Short Circuit protection is only assured up to V
IN
= 35V.
3. If not tested, shall be guaranteed to the specified limits.
The denotes the specifications which apply over the full operating temperature range.
ELECTRICAL CHARACTERISTICS 5 Volt
V
IN
= 10V, I
o
= 500mA, -55C T
A
125C (unless otherwise specified)
Parameter
Symbol
Test Conditions
Min.
Max.
Unit
Output Voltage
V
OUT
T
A
= 25C
4.92
5.08
V
V
IN
= 7.5V to 20V
4.85
5.15
V
Line Regulation
V
RLINE
V
IN
= 7.5V to 20V
5
mV
(Note 1)
12
mV
V
IN
= 8.0V to 12V
4
mV
10
mV
Load Regulation
V
RLOAD
I
O
= 5mA to 1.5 Amp
12
mV
(Note 1)
25
mV
I
O
= 250mA to 750 mA
6
mV
15
mV
Standby Current Drain
I
SCD
6
mA
6.5
mA
Standby Current Drain
D
I
SCD
V
IN
= 7.5V to 20V
0.8
mA
Change With Line
(Line)
Standby Current Drain
D
I
SCD
I
O
= 5mA to 1000mA
0.5
mA
Change With Load
(Load)
Dropout Voltage
V
DO
T
A
= 25C,
D
V
OUT
= 100mV, I
O
=
1.0A
2.5
V
Peak Output Current
I
O (pk)
T
A
= 25C
1.5
3.3
A
Short Circuit Current
I
DS
V
IN
= 35V
1.2
A
(Note 2)
2.8
A
Ripple Rejection
D
V
IN
f =120 Hz,
D
V
IN
= 10V
66
dB
D
V
OUT
(Note 3)
60
dB
Output Noise Voltage
N
O
T
A
= 25C, f =10 Hz to 100KHz
40
V/V
(Note 3)
RMS
Long Term Stability
D
V
OUT
T
A
= 25C, t = 1000 hrs.
75
mV
(Note 3)
D
t
3.3 - 219
3.3
OM7800IH Series
ELECTRICAL CHARACTERISTICS 15 Volt
V
IN
= 23V, I
o
= 500mA, -55C T
A
125C (unless otherwise specified)
Parameter
Symbol
Test Conditions
Min.
Max.
Unit
Output Voltage
V
OUT
T
A
= 25C
14.8
15.2
V
V
IN
= 18.5V to 30V
14.6
15.4
V
Line Regulation
V
RLINE
V
IN
= 17.5V to 30V
20
mV
(Note 1)
50
mV
V
IN
= 20V to 26V
15
mV
25
mV
Load Regulation
V
RLOAD
I
O
= 5mA to 1.5 Amp
35
mV
(Note 1)
I
O
= 5mA to 1.0 Amp
75
mV
I
O
= 250mA to 750 mA
21
mV
45
mV
Standby Current Drain
I
SCD
6.0
mA
6.5
mA
Standby Current Drain
D
I
SCD
V
IN
= 18.5V to 30V
0.8
mA
Change With Line
(Line)
Standby Current Drain
D
I
SCD
I
O
= 5mA to 1000mA
0.5
mA
Change With Load
(Load)
Dropout Voltage
V
DO
T
A
= 25C,
D
V
OUT
= 100mV, I
O
=
1.0A
2.5
V
Peak Output Current
I
O (pk)
T
A
= 25C
1.5
3.3
A
Short Circuit Current
I
DS
V
IN
= 35V
1.2
A
(Note 2)
2.8
A
Ripple Rejection
D
V
IN
f =120 Hz,
D
V
IN
= 10V
54
dB
D
V
OUT
(Note 3)
52
dB
Output Noise Voltage
N
O
T
A
= 25C, f =10 Hz to 100KHz
40
V/V
(Note 3)
RMS
Long Term Stability
D
V
OUT
T
A
= 25C, t = 1000 hrs.
150
mV
(Note 3)
D
t
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. Short Circuit protection is only assured up to V
IN
= 35V.
3. If not tested, shall be guaranteed to the specified limits.
The denotes the specifications which apply over the full operating temperature range.
3.5
3
2.5
2
1.5
1
0.5
0
0
5
10
15
20
25
30
35
PEAK OUTPUT
D
V
OUT
= 100mV
T
j
= -55C
T
j
= 25C
T
j
= 150C
Input To Output Differential (V)
2.5
2
1.5
1
0.5
0
-75 -50 -25
0
25
50 75 100 125 150
DROPOUT VOLTAGE
D
V
OUT
= 100MV
I
OUT
= 0A
I
OUT
= 500mA
I
OUT
= 1A
Junction Temperature (C)
100
80
60
40
20
10
100
1k
10k
100k
RIPPLE REJECTION
V
OUT
= 5V
V
IN
- V = 8V
DC
+ 3.5 V
rms
I
OUT
= 1A
T
j
= 25C
Frequency (Hz)
TYPICAL PERFORMANCE CHARACTERISTICS
Output Current (A)
Input To Output Differential (V)
Ripple Rejection (dB)
3.3
205 Crawford Street, Leominster, MA 01453 USA (508) 534-5776 FAX (508) 537-4246
OM7800IH Series
TYPICAL APPLICATIONS
MECHANICAL OUTLINE
PIN CONNECTION
Fixed Output Regulator
Circuit For Increasing Output Voltage
High Output Current,
Adjustable Output Regulator,
Short Circuit Protected
7 To 30 Volts
.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
1 2 3
Note:
Case is metal/hermetically sealed
Isolated Tab
OM78XXIH
Isolated
Front View
Pin 1: Input
Pin 2: Ground
Pin 3: Output
Tab: Isolated
OM78XXH
Non-Isolated
Front View
Pin 1: Input
Pin 2: Ground
Pin 3: Output
Tab: Ground
Tab
INPUT
OUTPUT
0.1F*
1Ft
OM7662SC
INPUT
OUTPUT
1F
OM7662SC
2N6124
2N4398
1F
R1
R
SC
INPUT
OUTPUT
OM7605SC
IQ
V
XX
V
O
= V
XX
(1 + ) + I
Q
R2
R2
R1
R2
R1
1F
0.1F
OM7662SC
INPUT
OUTPUT
0.33F
0.1F
10K
-
+
LM741
*Increasing value of output capacitor improves
system transient response.
t
Required only if regulator is located an appreciable
distance from power supply filter.
OM78XX
OM78XX
OM78XX
OM78XX