OMNI OM1325NTM, OM1325STM, OM1325SMM, OM1325NMM, OM1325N2M Datasheet

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OMNI OM1325NTM, OM1325STM, OM1325SMM, OM1325NMM, OM1325N2M Datasheet

OM1325SMM

OM1325NMM

OM1325STM

OM1325NKM

OM1325NTM

OM1325N2M

1.5 AMP NEGATIVE ADJUSTABLE VOLTAGE

REGULATOR APPROVED TO DESC DRAWING 7703406

Three Terminal, Precision Adjustable Negative Voltage Regulator In Hermetic

Style Packages (LM137A)

Please see mechanical outlines herein

FEATURES

Similar To Industry Standard LM137A

Approved To DESC Standardized Military Drawing Number 7703406

Built In Thermal Overload Protection

Short Circuit Current Limiting

Available In Six Package Styles

• Maximum Output Voltage Tolerance Is Guaranteed to +

 

1%

DESCRIPTION

These three terminal negative regulators are supplied in hermetically sealed packages. All protective features are designed into the circuit, including thermal shutdown, current-limiting, and safe-area control. With heat sinking, these devices can deliver up to 1.5 amps of output current. The LCC-20 device is limited to .5

amps. The unit also features output voltages that can be fixed from -1.2 volts to -37 volts using external resistors.

4 11 R2

Supersedes 1 07 R1

ABSOLUTE MAXIMUM RATINGS

 

T

c @ 25°C

 

 

Power Dissipation

 

 

 

 

 

Case 2 . . . . . . . . . . . . . . . . . . . . . .

. . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.1 W

Case-All Others. . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

20 W

Input - Output Voltage Differential . . . . . . . .

. .

. . . . . . . . . .

. . . . . . . . . . . . . . . . 40 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, Junction to Case:

 

 

 

 

 

Case 2, LCC-20 . . . . . . . . . . . . . . . . . .

. .

. . . . . . . . . . .

. . . . . . . . . . . . . . 17°C/W

Case U & M, TO-257 (Isol) and SMD-3 . . .

. . .

. . . . . . . . . . .

. . . . . . . . . 4.2°C/W

 

 

. .Case T&N, TO-257 (Non-Isol) and SMD-1

. . . . . . . . . . . . . . . . . . . . . 3.5°C/W

 

3.5

Case Y, TO-3

 

 

3.0°C/W

. . .

. . . . . . . . . . .

 

 

 

 

Maximum Output Current:

 

 

 

 

 

Case 2 . . . . . . . . . . . . . . . . . . . . . .

. . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 A

Case-All Others. . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1.5A

Recommended Operating Conditions:

 

 

 

 

 

Output Voltage Range . . . . . . . . . . . . . .

. .

. . . . . . . . . . .

. . . . . . . .-1.2 to -37 VDC

 

 

Ambient Operating Temperature Range (T

 

A ). . .

. . . . . . . . . . . . . - 55°C to + 125°C

Input Voltage Range . . . . . . . . . . . . . .

. .

. . . . . . . . . . .

. . . . . -4.25 to -41.25 VDC

 

 

 

3.5 - 21

 

 

 

OM1325NTM, OM1325STM, OM1325NKM, OM1325SMM, OM1325NMM, OM1325N2M

ELECTRICAL CHARACTERISTICS

-55°C ≤ T A ≤ 125°C, I L = 8mA (unless otherwise specified)

OM1325NTM, OM1325STM, OM1325NKM, OM1325SMM, OM1325NMM

Parameter

Symbol

 

 

Test Conditions

 

 

 

 

 

 

 

 

Min.

 

Max.

Unit

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Reference Voltage

V

 

REF

 

VDIFF

= 3.0V, T A

= 25°C

 

 

-1.262

-1.238

 

 

 

 

 

 

 

 

 

 

VDIFF

= 3.0V

 

 

-1.280

-1.220

V

 

 

 

 

 

 

 

 

 

VDIFF

 

= 40V

 

 

-1.280

-1.220

 

Line Regulation

R

 

LINE

3.0 V ≤

 

VDIFF

≤ 40V, T A = 25°C

 

-4.5

4.5

 

(Note 1)

 

 

 

 

 

3.0V ≤

VDIFF

≤ 40V

 

 

-13.8

13.8

mV

Load Regulation

R

 

LOAD

VDIFF

 

=5V, 8mA ≤ I

L ≤ 1.5A

 

-25

25

 

(Note 1)

 

 

 

VDIFF

=12V, 8mA ≤ I

L

≤ 1.5A, T

A

= 25°C

 

-25

25

mV

 

 

 

 

VDIFF

 

40V, 8mA ≤ I

 

L

≤ 1.5A, T

A

= 25°C

 

-25

25

 

 

 

 

 

VDIFF

 

=40V, 8mA ≤ I

L ≤ 1.5A

 

-50

50

 

Thermal Regulation

V

 

RTH

 

 

Vin

= -14.6V, I

L = 1.5A

 

 

 

-5

5

mV

 

 

 

 

P d = 20 Watts, t = 10 ms, T

A

= 25°C

 

 

 

 

Ripple Rejection

R

 

N

 

 

f = 120 Hz, V out

= Vref

 

 

66

 

dB

(Note 2)

 

 

 

 

 

 

 

 

C

Adj = 10 µF

 

 

 

 

 

 

 

Adjustment Pin Current

I

 

Adj

 

 

 

 

 

VDIFF

= 3.0V

 

 

 

100

 

 

 

 

 

 

 

 

 

 

VDIFF

 

= 40V

 

 

 

100

µA

Adjustment Pin

∆I

 

Adj

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Current Change

(line)

 

3V ≤

 

 

 

 

VDIFF ≤ 40V

 

 

-5

5

µA

 

 

 

∆IAdj

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(load)

VDIFF

 

= 5V, 8mA ≤ I

L ≤ 1.5A

 

-5

5

µA

Miminum Load Current

I

Lmin

VDIFF

 

= 3.0V, V

out

= -1.4V (forced)

 

3.0

 

 

 

 

 

VDIFF

 

= 10V, V

out

= -1.4V (forced)

 

3.0

mA

 

 

 

 

VDIFF

 

= 40V, V ou

t = -1.4V (forced)

 

5.0

 

Current Limit

I

CL

 

 

 

 

 

VDIFF

≤ 5V

 

 

1.5

3.5

 

(Note 2)

 

 

 

 

VDIFF

= 40V, T

A

= 25°C

 

 

0.24

1.2

A

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.If not tested, shall be guaranteed to the specified limits.

3.The denotes the specifications which apply over the full operating temperature range.

 

 

 

PART NUMBER DESIGNATOR

 

 

 

 

 

 

 

 

 

 

Standard Military Drawing Number

Omnirel Part Number

 

Omnirel Package Designation

 

 

 

7703406M

 

 

OM1325SMM

SMD-3

 

 

7703406U

 

 

OM1325STM

TO-257 (Isolated)

 

 

 

3.5

 

7703406T

 

 

OM1325NTM

TO-257 (non-Isolated)

 

7703406Y

 

 

OM1325NKM

TO-3

 

 

7703406N

 

 

OM1325NMM

SMD-1

 

 

77034062

 

 

OM1325N2M

LCC-20

 

 

 

 

 

 

 

3.5 - 22

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