PIN CONNECTION (Top view)

2/15

Symbol

Parameter

Heptawatt

Powerdip

Thermal resistance junction-case

max

4

°C/W

-

Thermal resistance junction-pins

max

-

14

°C/W

Thermal resistance junction-ambient

max

50

°C/W

80

°C/W*

* Obtained with the GND pins soldered to printed circuit with minimized copper area.

THERMAL DATA

HEPTAWATT

POWERDIP

NAME

FUNCTION

1

7

SUPPLY VOLTAGE

Unregulated voltage input. An internal regulator powers

the internal logic.

2

10

FEEDBACK INPUT

The feedback terminal of the regulation loop. The output

is connected directly to this terminal for 5.1V operation;

it is connected via a divider for higher voltages.

3

11

FREQUENCY

COMPENSATION

A series RC network connected between this terminal

and ground determines the regulation loop gain

characteristics.

PIN FUNCTIONS

Symbol

Parameter

Value

Unit

Input voltage

50

V

Input to output voltage difference

50

V

Negative output DC voltage

-1

V

Output peak voltage at t = 0.1

µs; f = 100KHz

-5

V

Voltage at pin 11, 15

5.5

V

Voltage at pin 10

7

V

Pin 11 sink current

1

mA

Pin 14 source current

20

mA

≤ 90°C (Powerdip)

≤ 90°C (Heptawatt)

4.3

15

W

W

Junction and storage temperature

-40 to 150

°C

ABSOLUTE MAXIMUM RATINGS

L4962