SG7800A/SG7800 SERIES

05/01 Rev 1.4

Copyright

© 1997

11861 Western Avenue

∞

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∞ Garden Grove, CA 92841

2

(714) 898-8121

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∞ FAX: (714) 893-2570

Device

Input Voltage

Input Voltage Differential

Output Voltage

Input Voltage

(transient) (Note 3)

(Output shorted to ground)

5V

35V

50V

35V

12V

35V

50V

35V

15V

35V

50V

35V

POSITIVE REGULATOR

Operating Junction Temperature

Hermetic (K, T, IG & L - Packages) .........................

150°C

Storage Temperature Range ..........................

Lead Temperature (Soldering, 10 Seconds) .................

-65°C to 150°C

300°C

Note 1. Values beyond which damage may occur.

THERMAL DATA

K Package:

θ

3.0°C/W

θ

T Package:

θ

15°C/W

θ

120°C/W

IG Package:

θ

3.5°C/W

θ

42°C/W

L Package:

θ

35°C/W

θ

120°C/W

Note A. Junction Temperature Calculation: T

Note B. The above numbers for

θ

resistance of the package in a standard mounting configuration.

The

θ

performance of the device/pc-board system. All of the above

assume no ambient airflow.

Note 3. Operation at high input voltages is dependent upon load current. When

load current is less than 5mA, output will rise out of regulation as input-

oiutput differential icreases beyond 30V. Note also from Figure 1, that

maximum load current is reduced at high voltages. The 50V input rating

of the SG140A series refers to ability to withstnd high line or transient

conditions without damage. Since the regulator's maximum current

capability is reduced, the output may fall out of regulation at high input

voltages under nominal loading.

FIGURE 1.

PEAK OUTPUT CURRENT

VS. INPUT - OUTPUT DIFFERENTIAL

Note 2. Range over which the device is functional.

CHARACTERISTIC CURVES

Operating Junction Temperature Range:

SG7800A/SG7800 ........................................ -55

°C to 150°C