OMNIREL OM7800IH Datasheet
ISOLATED HERMETIC TO-257AA FIXED
VOLTAGE REGULATORS
Three T erminal, Fixed V oltage, 1.5 Amp
Precision Positive Regulators In Hermetic
JEDEC TO-257AA P ackage
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
OM7800IH Series
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 @ 25°C
Input Voltage.................................................................. 35 V
Operating Junction Temperature Range .......................... - 55°C to + 150°C
Storage Temperature Range ..................................... - 65°C to + 150°C
Typical Power/Thermal Characteristics:
Rated Power @ 25° C TC.............................................. 17.5W
TA................................................. 3W
Thermal Resistance
qJC........................................... 4.2°C/W
qJA............................................ 42°C/W
Notes: Product also available in Non-Isolated construction. To order this version,
delete “I” from part number.
Example: Isolated
OM78XXIH OM78XXH
Use letter “A” after part number to designate ±1% output voltage tolerance.
Example: OM7805AIH
Non-Isolated
3.3
4 11 R4
Supersedes 1 07 R3
3.3 - 217
OM7800IH Series
3.3
ELECTRICAL CHARACTERISTICS 5 Volt V
= 10V, Io= 500mA, -55°C TA 125°C (unless otherwise specified)
IN
Parameter Symbol Test Conditions Min. Max. Unit
Output Voltage V
Line Regulation V
(Note 1)
Load Regulation V
(Note 1)
Standby Current Drain I
Standby Current Drain DI
Change With Line (Line)
Standby Current Drain DI
Change With Load (Load)
Dropout Voltage V
Peak Output Current I
Short Circuit Current I
(Note 2)
Ripple Rejection DV
Output Noise Voltage N
(Note 3) RMS
Long Term Stability DV
(Note 3) Dt
DV
OUT
RLINE
RLOAD
SCD
SCD
SCD
DO
O (pk)
DS
OUT
O
OUT
TA= 25°C, DV
IN
ELECTRICAL CHARACTERISTICS 12 Volt V
TA= 25°C 4.92 5.08 V
= 7.5V to 20V • 4.85 5.15 V
V
IN
VIN= 7.5V to 20V 5 mV
• 12 mV
= 8.0V to 12V 4 mV
V
IN
• 10 mV
IO = 5mA to 1.5 Amp 12 mV
• 25 mV
= 250mA to 750 mA 6 mV
I
O
• 15 mV
6mA
• 6.5 mA
V
= 7.5V to 20V • 0.8 mA
IN
IO= 5mA to 1000mA • 0.5 mA
= 100mV, I
OUT
TA= 25°C 1.5 3.3 A
= 1.0A 2.5 V
O
VIN= 35V 1.2 A
• 2.8 A
f =120 Hz, DVIN= 10V 66 dB
(Note 3) • 60 dB
TA= 25°C, f =10 Hz to 100KHz 40 µV/V
TA= 25°C, t = 1000 hrs. 75 mV
= 19V, Io= 500mA, -55°C TA 125°C (unless otherwise specified)
IN
Parameter Symbol Test Conditions Min. Max. Unit
Output Voltage V
Line Regulation V
(Note 1)
Load Regulation V
(Note 1)
Standby Current Drain I
Standby Current Drain DI
Change With Line (Line)
Standby Current Drain DI
Change With Load (Load)
Dropout Voltage V
Peak Output Current I
Short Circuit Current I
(Note 2)
Ripple Rejection DV
Output Noise Voltage N
(Note 3) RMS
Long Term Stability DV
(Note 3) Dt
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.
DV
OUT
RLINE
RLOAD
SCD
SCD
SCD
DO
O (pk)
DS
IN
OUT
O
OUT
2. Short Circuit protection is only assured up to V
3. If not tested, shall be guaranteed to the specified limits.
TA= 25°C 11.88 12.12 V
= 14.5V to 27V • 11.64 12.36 V
V
IN
VIN= 14.5V to 27V 18 mV
• 50 mV
= 16V to 22V 9 mV
V
IN
• 30 mV
IO = 5mA to 1.5 Amp 32 mV
• 60 mV
= 250mA to 750 mA 20 mV
I
O
• 40 mV
6.0 mA
• 6.5 mA
V
= 15V to 30V • 0.8 mA
IN
IO= 5mA to 1000mA • 0.5 mA
DV
= 100mV, I
OUT
= 1.0A • 2.5 V
O
TA= 25°C 1.5 3.3 A
VIN= 35V 1.2 A
• 2.8 A
f =120 Hz, DVIN= 10V 61 dB
(Note 3) • 54 dB
TA= 25°C, f =10 Hz to 100KHz 40 µV/V
TA= 25°C, t = 1000 hrs. 120 mV
= 35V.
IN
The • denotes the specifications which apply over the full operating temperature range.
3.3 - 218
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