REG1

1.23V

REFERENCE

REG2

1.23V

RESET

1.4V

1.23V

1.23V

SENSE

VS1

VS2

EN

PR

SI

SO

RES

CT

ADJ

OUT2

OUT1

GND

D94AT074A

BLOCK DIAGRAM

ABSOLUTE MAXIMUM RATINGS

Symbol

Parameter

Value

Unit

DC Operating Supply Voltage

28

V

Transient Operating Supply Voltage (T < 400ms)

-14 to 40

V

Output Current

internally limited

Sense Input Voltage (Voltage Forced) (note 2)

-20 to 20

V

Sense Input Current (Current Forced) (note 2)

±1mA

Enable Input Voltage (Voltage Forced) (note 2)

-20 to 20

V

Sense Input Current (Current Forced) (note 2)

±1mA

Output Voltages

-0.3 to 20

V

Output Currents (Output Low)

5

mA

°C (note 3)

Powerdip 12+2+2

875

mW

Storage Temperature

-65 to 150

°C

Operating Junction Temperature

-40 to 150

°C

Thermal shutdown junction temperature Output 2 will shut-down

typically at Tj 10K lower than output 1

165

°C

Note 1:

The circuit is ESD protected according to MIL-STD-883C

Note 2: Current forced means voltage unlimited but current limited to the specified value

Voltage forced means voltage limi ted to the specified valueswhile the current is not limited

Note 3: Typical value soldered on a PC board with 8cm

L4938E - L4938ED - L4938EPD

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