OMNIREL OM7604ST Datasheet

ISOLATED HERMETIC TO-257AA
ADJUST ABLE V OL T A GE REGULA TOR

Three T erminal, Adjustable V oltage, 3.0 Amp
Precision Positive Regulator In A Hermetic
JEDEC TO-257AA P ackage

FEA TURES

• Isolated Hermetic Package, JEDEC TO-257AA Outline

• Reference Voltages Set To ±2% (±1% Available)

• Built-In Thermal Overload Protection

• Short Circuit Current Limiting

• Product Is Available Screened To MIL-STD-883

• Similar To Industry Standard P/N LM150A

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 3.0 amps of
output current. These units feature 2% initial voltage tolerance, 0.3% load regulation
and 0.01% line regulation.

OM7604ST

ABSOLUTE MAXIMUM RATINGS @ 25°C

Input Voltage ..................................................................+35V

Operating Junction Temperature Range.............................-55°C to +150°C

Storage Temperature Range .........................................-65° to +150°C

Typical Power/Thermal Characteristics:

Note: For ±1% device, add letter "A" in front of part number (e.g. OMA 7604ST).

4 11 R4
Supersedes 1 07 R3

Rated Power @ 25°C

TC........................................................................25W

TA..........................................................................3W

Thermal Resistance

qJC....................................................................4.2°C/W

qJA.....................................................................42°C/W

3.3 - 141

3.3

OM7604ST

ELECTRICAL CHARACTERISTICS -55°C T

Test Symbol Conditions Limits Unit

Reference Voltage V

Line Regulation ³V

(Note 2) ³V

Load Regulation ³V

(Note 2) ³I

REF

OUT

IN

OUT

OUT

Thermal Regulation 20ms pulse, T

Ripple Rejection ³V

(Note 3) ³V

Adjust Pin Current I

Adjust Pin ³I

IN

REF

Adj

Adj

Current Change 3.0V (V

Miminum Load Current I

Current Limit I

MIN

CL

I

= 10mA 1.20 1.30 V

OUT

T

= 25°C

A

3.0V (V
10mA I

3.0V (V
I

= 10mA, TJ= 25°C

OUT

3.0V (V
I

= 10mA

OUT

10mA I
V

5.0A, TJ= 25°C

OUT

10mA I
V

5.0A

OUT

10mA I
V

5.0A, TJ= 25°C

OUT

10mA I
V

5.0A

OUT

V

= 10V, f = 120Hz 66 dB

OUT

C

= 10µF

ADJ

10mA I

(V

IN - VOUT

(V

IN - VOUT

(V

IN - VOUT

) 35V, P 30W 1.20 1.30 V

IN - VOUT

3.0A (Note 2)

OUT

) 35V, 0.01 %/V

IN - VOUT

) 35V, 0.05 %/

IN - VOUT

3.0A, 17.5 mV

OUT

3.0A, 50 mV

OUT

3.0A, 0.35 %

OUT

3.0A, 1.0 %

OUT

=25°C 0.01 %/W

A

3.0A, I

OUT

IN - VOUT

= 10mA 5.0 µA

OUT

) 35V
) = 35V 5.0 mA
) 10V 3.0 A
) = 30V 0.3 A

125°C (Note 1) unless otherwise specified

A

Min. Max.

100 µA

3.3

Notes:

1. Unless otherwise specified, these specifications apply for (VIN- V
dissipation is internally limited, these characteristics are applicable for power dissipation up to 30W.

) = 5.0V and I

OUT

= 1.5A. Although power

OUT

2. Regulation is measured at a constant junction temperature using a pulse technique. Changes in output voltage
due to heating effects are covered under the specification for thermal regulation.

3. Guaranteed if not tested to the limits specified.

3.3 - 142

TYPICAL PERFORMANCE CHARACTERISTICS

Voltage Change (Percent)

1.0
0

0.1

0.2

0.3

0.4

0.5

-75

-50 -25 0 25 50 75 100125150
Temperature (°C)

Load Regulation Current Limit

Adjustment Current (µA)

65
60

55
50
45
40
35

30

-75 -25 25 75 125
Temperature (°C)

Adjustment Current

Dropout Voltage

Reference Voltage (V)

1.27

1.26

1.25

1.24

1.23

-50 -25 -0 25 50 75 100 125 150
Temperature (°C)

Temperature Stability

Minimum I

OUT

Current (mA)

5
4

3

2

1

0

0 5 10 15 20 25 30 35 40

Input-Output Diffential(V)

Minimum Operating Current

Ripple Rejection (dB)

100

80

60

40
20

0

0

5101520253035

Output Voltage (V)

Ripple Rejection

Ripple Rejection (dB)

100

80

60
40

20

0

10 100 1k 10k 100k 1M

Frequency (Hz)

Ripple Rejection

Ripple Rejection (dB)

80

70

60

50

40

0.1 1 10
Output Current (A)

Ripple Rejection

Output Impedance (Ohms)

10

1

0.1

0.01

0.001

0.0001
10

100 1k 10k 100k 1M

Frequency (Hz)

Output Impedance

1.5
1

0.5
0

-0.5

-1
1

0.5
0

0 10203040

Time (µs)

Line Transient Response

1.5
1

0.5
0

-0.5

-1

-1.5

1.5
1

0.5
0

0 10203040

Time (µs)

Load Transient Response

Input Voltage

Change(V)

Output Voltage

(Deviation (V)

Load

Current (A)

Output Voltage

Deviation (V)

C

ADJ

= 10µF

VIN - V

OUT

= 5V

V

OUT

= 500mA

f = 120Hz
T

J

= 25°C

VIN = 15V
V

OUT

= 10V

f = 120Hz
T

CASE

= 25°C

VIN = 15V, V

OUT

= 10V

Preload = 100mA
T

J

= 25°C

VIN = 15V
V

OUT

= 10V

I

OUT

= 500mA

V

OUT

= 10V

I

OUT

= 50mA

TJ = 25°C

VIN = 15V
V

OUT

= 10V

I

OUT

= 500mA

C

ADJ

= 0

C

ADJ

= 10µF

C

ADJ

= 0

C

ADJ

= 10µF

C

OUT

= 10µF

C

ADJ

= 0

C

OUT

= 0

C

OUT

= 1µF

C

OUT

= 0

C

ADJ

= 10µF

C

ADJ

= 0

C

ADJ

= 10µF

C

ADJ

= 0

C

OUT

= 1µF C

ADJ

= 10µF

C

OUT

= 0 C

ADJ

= 0

Output Current (A)

6

4

2

0

0 5 10 15 20 25 30 35

Input-Output Differential (V)

I

OUT

= 3A

TJ = 150°C

TJ = 25°C

TJ = -55°C

TJ = 150°C

TJ = 25°C

TJ = -55°C

Input-Output Differential (V)

3

2.5

2

1.5
1

0.5

-75 -25 25 75 125
Temperature (°C)

∆V

OUT

= 100 mV

I

OUT

= 3 A

I

OUT

= 2 A

I

OUT

= 20 mA

OM7604ST

3.3

3.3 - 143

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

OM7604ST

.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

V

OUT

V

IN

V

IN

Adj

LT 301A

25

1k

25

121

365

100pF

5µF

++-

-

3

2

7

6

5V

RET

R

L

R

p

Return

1

8

(Max Drop 300mV)

V

OUT

V

IN

Adj

1K

500

0.5

V

OUT

V

OUT

V

IN

Adj

C1*
1µF

C2

R1

240

R2
5k

1µF

+

+

+

+

+

V

OUT

= 1.25V(1 + )

R2
R1

*Needed if device is far
from filter capacitors.

+

l

+

l

Optional - improves
transient response.

5V

*C1 improves ripple rejection,
X

C

should be small compared to R2.

1µF

10µf*

V

OUT

V

IN

V

IN

Adj

R2
365
1%

R1
121
1%

+

C1

1.2 - 2.5V Adjustable Regulator Improving Ripple Rejection Adjustable Current Limiter

Remote Sensing

4

V

IN

V

OUT

V

IN

V

IN

Adj

LT 1001

3

2

2.5V

LT 1009

4.99k
1%

15k
1%

2k

4

6

7

2k

+10V

Precision High Current Reference

+

-

TYPICAL APPLICATIONS

MECHANICAL OUTLINE PIN CONNECTION

3.3

NOTES

• Case is metal/hermetically sealed

• Isolated Tab

123

Front View
Pin 1: Adjust
Pin 2: V
Pin 3: V
Tab: Isolated

OUT
IN

Tab