sg79xxt-883b Microsemi Corporation, sg79xxt-883b Datasheet

sg79xxt-883b

Manufacturer Part Number

sg79xxt-883b

Description

Negative Fixed Voltage Regulators

Manufacturer

Microsemi Corporation

Datasheet

1.SG79XXT-883B.pdf (7 pages)

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SG7900A/SG7900 SERIES

05/01 Rev 1.5

DESCRIPTION

The SG7900A/SG7900 series of negative regulators offer self-contained,

fixed-voltage capability with up to 1.5A of load current. With a variety of

output voltages and four package options this regulator series is an

optimum complement to the SG7800A/SG7800, SG140 line of three

terminal regulators.

These units feature a unique band gap reference which allows the

SG7900A series to be specified with an output voltage tolerance of 1.5%.

The SG7900A versions also offer much improved line regulation character-

istics.

All protective features of thermal shutdown, current limiting, and safe-area

control have been designed into these units and since these regulators

require only a single output capacitor (SG7900 series) or a capacitor and

5mA minimum load (SG120 series) for satisfactory performance, ease of

application is assured.

Although designed as fixed-voltage regulators, the output voltage can be

increased through the use of a simple voltage divider. The low quiescent

drain current of the device insures good regulation when this method is

used, especially for the SG120 series.

These devices are available in hermetically sealed TO-257, TO-3, TO-39

and LCC package.

SCHEMATIC DIAGRAM

1999

NEGATIVE FIXED VOLTAGE REGULATOR

FEATURES

HIGH RELIABILITY FEATURES

Output voltage set internally to 1.5% on SG7900A

Output current to 1.5A

Excellent line and load regulation

Foldback current limiting

Thermal overload protection

Voltages available: -5V, -12V, -15V

Contact factory for other voltage options

Available in surface mount package

- SG7900A/SG7900

Available to MIL-STD - 883

MIL-M38510/11501BXA - JAN7905T

MIL-M38510/11505BYA - JAN7905K

MIL-M38510/11502BXA - JAN7912T

MIL-M38510/11506BYA - JAN7912K

MIL-M38510/11503BXA - JAN7915T

MIL-M38510/11507BYA - JAN7915K

LMI level "S" processing available

11861 Western Avenue

SG7900A/SG7900

INFINITY Microelectronics Inc.

(714) 898-8121

Garden Grove, CA 92841

FAX: (714) 893-2570

For normal

operation the (V

Sense Pin must be

externally

connected to the

load.

)

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sg79xxt-883b Summary of contents

Page 1

SG7900A/SG7900 SERIES DESCRIPTION The SG7900A/SG7900 series of negative regulators offer self-contained, fixed-voltage capability with up to 1.5A of load current. With a variety of output voltages and four package options this regulator series is an optimum complement to the SG7800A/SG7800, ...

Page 2

SG7900A/SG7900 SERIES ABSOLUTE MAXIMUM RATINGS Device Output Voltage -5V -12V -15V Operating Junction Temperature Hermetic ( & Packages) ........................ Note 1. Values beyond which damage may occur. THERMAL DATA K Package: Thermal Resistance- Junction to Case ...

Page 3

SG7900A/SG7900 SERIES CHARACTERISTIC CURVES (continued) FIGURE 4. SHORTCIRCUIT CURRENT VS FIGURE 7. DROPOUT CHARACTERISTICS APPLICATIONS FIGURE 9 - FIXED OUTPUT REGULATOR NOTE required only if regulator is separated from rectifier filter. 2. Both C1 and ...

Page 4

SG7900A/SG7900 SERIES ELECTRICAL SPECIFICATIONS (Unless otherwise specified, these specifications apply over the operating ambient temperatures for SG7905A/SG7905 with - -10V 500mA for the K and IG -Power Packages testing techniques are ...

Page 5

SG7900A/SG7900 SERIES ELECTRICAL SPECIFICATIONS (Unless otherwise specified, these specifications apply over the operating ambient temperatures for SG7912A/SG7912 with - -19V 500mA for the K and IG -Power Packages testing techniques are ...

Page 6

SG7900A/SG7900 SERIES ELECTRICAL SPECIFICATIONS (Unless otherwise specified, these specifications apply over the operating ambient temperatures for SG7915A/SG7915 with - -23V 500mA for the K and IG -Power Packages testing techniques are ...

Page 7

... JAN7905K JAN7912K JAN7915K SG79XXK SG79XXK 3-PIN TO-39 METAL CAN SG79XXAT/883B T-PACKAGE SG7905AT/DESC SG7912AT/DESC SG7915AT/DESC SG79XXAT SG79XXT/883B JAN7905T JAN7912T JAN7915T SG79XXT 3-PIN HERMETIC TO-257 SG79XXAIG/883B IG-PACKAGE (Isolated) SG7905AIG/DESC SG7912AIG/DESC SG7915AIG/DESC SG79XXAIG SG79XXIG/883B SG79XXIG 20-PIN CERAMIC SG79XXL/883B LEADLESS CHIP CARRIER SG79XXL L- PACKAGE SG7905AL/DESC SG7912AL/DESC SG7915AL/DESC Note 1 ...

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