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

OM7800IH Series

ELECTRICAL CHARACTERISTICS 15 Volt V

= 23V, 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)

OUT

RLINE

TA= 25°C 14.8 15.2 V

V

= 18.5V to 30V • 14.6 15.4 V

IN

VIN= 17.5V to 30V 20 mV

• 50 mV

V

= 20V to 26V 15 mV

IN

• 25 mV

Load Regulation V

RLOAD

(Note 1) I

IO = 5mA to 1.5 Amp 35 mV

= 5mA to 1.0 Amp • 75 mV

O

I

= 250mA to 750 mA 21 mV

O

• 45 mV

Standby Current Drain I

SCD

• 6.5 mA

Standby Current Drain DI

SCD

Change With Line (Line)

Standby Current Drain DI

SCD

Change With Load (Load)

Dropout Voltage V

Peak Output Current I

Short Circuit Current I

DO

O (pk)

DS

(Note 2)

Ripple Rejection DV

Output Noise Voltage N

IN

DV

OUT

O

(Note 3) RMS

Long Term Stability DV

OUT

(Note 3) Dt

V

= 18.5V to 30V • 0.8 mA

IN

IO= 5mA to 1000mA • 0.5 mA

TA= 25°C, DV

OUT

= 100mV, I

= 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 54 dB

(Note 3) • 52 dB

TA= 25°C, f =10 Hz to 100KHz 40 µV/V

TA= 25°C, t = 1000 hrs. 150 mV

6.0 mA

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 VIN= 35V.

3. If not tested, shall be guaranteed to the specified limits.
The • denotes the specifications which apply over the full operating temperature range.

TYPICAL PERFORMANCE CHARACTERISTICS

PEAK OUTPUT

3.5

3

2.5

Tj= 25°C

2

1.5

Tj= 150°C

1

Output Current (A)

0.5

DV

= 100mV

OUT

0

0 5 10 15 20 25 30 35

Input To Output Differential (V)

Tj= -55°C

DROPOUT VOLTAGE

2.5

I

= 1A

2

1.5

1

0.5

DV

Input To Output Differential (V)

0

-75-50 -25 0 25 50 75 100 125 150

OUT

I

I

= 0A

OUT

= 100MV

OUT

Junction Temperature (°C)

OUT

= 500mA

RIPPLE REJECTION

100

I

T

OUT

= 25°C

j

DC

= 1A

V

+ 3.5 V

80

60

40

Ripple Rejection (dB)

20

V

- V = 8V

IN

10 100 1k 10k 100k

Frequency (Hz)

= 5V

OUT

rms

3.3

3.3 - 219

205 Crawford Street, Leominster, MA 01453 USA [phone] FAX [phone]

OM7800IH Series

.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

INPUT OUTPUT

0.1µF*1µFt

OM7662SC

INPUT

OUTPUT

1µF

OM7662SC

2N6124

2N4398

1µF

R

1

R

SC

INPUT

OUTPUT

OM7605SC

I

Q

V

XX

VO = V

XX

(1 + ) + IQ R2

R2
R1

R2

R1

1µF 0.1µF

OM7662SC

INPUT OUTPUT

0.33µF 0.1µF
10K

-

+

LM741

TYPICAL APPLICATIONS

Fixed Output Regulator Circuit For Increasing Output Voltage

OM78XX

*Increasing value of output capacitor improves
system transient response.

t

Required only if regulator is located an appreciable

distance from power supply filter.

High Output Current, Adjustable Output Regulator,

Short Circuit Protected 7 To 30 Volts

OM78XX

OM78XX

OM78XX

MECHANICAL OUTLINE PIN CONNECTION

3.3

Note:

• Case is metal/hermetically sealed

• Isolated Tab

OM78XXIH

Isolated

Front View
Pin 1: Input
Pin 2: Ground
Pin 3: Output
Tab: Isolated

Tab

OM78XXH

Non-Isolated

Front View
Pin 1: Input
Pin 2: Ground
Pin 3: Output
Tab: Ground

123