OMNIREL COM7915T, COM7912T, COM7905T Datasheet

COM7905T COM7915T

COM7912T

(COTS) COMMERCIAL OFF-THE-SHELF FIXED VOLTAGE NEGATIVE REGULATORS IN TO-257

Three Terminal, Fixed Voltage, 1.5 Amp

Precision Negative Regulators In Hermetic

JEDEC TO-257AA Package

FEATURES

•Isolated Hermetic Package, JEDEC TO-257AA Outline

•Output Voltages: -5V, -12V, -15V

•Output Voltages Set Internally To ± 2%

•Built-In Thermal Overload Protection

•Short Circuit Current Limiting

•Standard Off-The-Shelf

DESCRIPTION

These three terminal negative 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 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
			3.3
	Storage Temperature Range .....................................	- 65°C to + 150°C
	Typical Power/Thermal Characteristics:
	Rated Power @ 25° C TC ..............................................	17.5W
	TA .................................................	3 W
	Thermal Resistance
	qJC ............................................	4.2°C/W
	qJA ............................................	42°C/W

8 09 R0	3.3- 1

COM7900T Series

ELECTRICAL CHARACTERISTICS

-5 Volt

VIN = -10V, Io = 500mA, -55°C

TA

125°C (unless otherwise specified)

Parameter

Symbol

Test Conditions

Min.

Max.

Unit

Output Voltage

VOUT

TA = 25°C

-4.9

-5.1

V

VIN = -7.5V to -20V

•

-4.8

-5.2

V

Line Regulation

VRLINE

VIN = -7.5V to -20V

12

m V

(Note 1)

•

25

m V

VIN = -8.0V to -12V

5

m V

•

12

m V

Load Regulation

VRLOAD

IO = 5mA to 1.5 Amp

20

m V

(Note 1)

•

25

m V

IO = 250mA to 750 mA

15

m V

•

30

m V

Standby Current Drain

ISCD

2.5

m A

•

3.0

m A

Standby Current Drain

DISCD

VIN = -7.0V to -20V

•

0.4

m A

Change With Line

(Line)

Standby Current Drain

DISCD

IO = 5mA to 1000mA

•

0.4

m A

Change With Load

(Load)

Dropout Voltage

VD O

DVOUT = 100mV, IO = 1.0A

•

2.5

V

Peak Output Current

IO (pk)

TA = 25°C

1.5

3.3

A

Short Circuit Current

ID S

VIN = -35V

1.2

A

(Note 2)

•

2.8

A

Ripple Rejection

DVIN

f =120 Hz, DVIN = -10V

63

dB

DVOUT

(Note 3)

•

60

dB

Output Noise Voltage

NO

TA = 25°C, f =10 Hz to 100KHz

40

µV/V

(Note 3)

R M S

Long Term Stability

DVOUT

TA = 25°C, t = 1000 hrs.

75

m V

(Note 3)

Dt

ELECTRICAL CHARACTERISTICS

-12 Volt

VIN = -19V,Io = 500mA, -55°C

TA

125°C (unless otherwise specified)

Parameter

Symbol

Test Conditions

Min.

Max.

Unit

Output Voltage

VOUT

TA = 25°C

-11.76

-12.24

V

VIN = -14.5V to -27V

•

-11.6

-12.4

V

Line Regulation

VRLINE

VIN = -14.5V to -27V

20

m V

(Note 1)

•

50

m V

VIN = -16V to -22V

10

m V

•

30

m V

Load Regulation

VRLOAD

IO = 5mA to 1.5 Amp

32

m V

(Note 1)

•

60

m V

IO = 250mA to 750 mA

16

m V

•

30

m V

Standby Current Drain

ISCD

3.5

m A

•

4.0

m A

Standby Current Drain

DISCD

VIN = -14.5V to -27V

•

0.8

m A

Change WithLine

(Line)

Standby Current Drain

DISCD

IO = 5mA to 1000mA

•

0.5

m A

Change W ith Load

(Load)

Dropout Voltage

VD O

DVOUT = 100mV,IO = 1.0A

•

1.8

V

Peak Output Current

IO (pk)

TA = 25°C, IO = 5mA to 1A

1.5

3.3

A

3.3

Short Circuit Current

ID S

VIN = -35V

1.2

A

(Note 2)

•

2.8

A

Ripple Rejection

DVIN

f =120 Hz, DVIN = -10V

56

dB

DVOUT

(Note 3)

•

53

dB

Output Noise Voltage

NO

TA = 25°C, f =10 Hz to 100KHz

40

µV/V

(Note 3)

R M S

Long Term Stability

DVOUT

TA = 25°C, t = 1000 hrs.

120

m V

(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.

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.

3.3- 2