TYPICAL

CHARACTERISTICS

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Characteristics

PT6640 SERIES

(T

Symbols

Conditions

Min

Typ

Max

Units

Switching Frequency

+9V

500

550

600

kHz

Absolute Maximum

-40

—

+85

(2)

°C

Operating Temperature Range

Storage Temperature

—

-40

—

+125

°C

Mechanical Shock

—

Per Mil-STD-883D, Method 2002.3

—

500

—

G’s

Mechanical Vibration

—

Per Mil-STD-883D, Method 2007.2,

—

7.5

—

G’s

20-2000 Hz, soldered in a PC board

Weight

—

—

—

14

—

grams

Notes:

(1) The PT6640 Series requires a 330µF(output) and 560µF(input) electrolytic capacitors for proper operation in all applications.

(2) See Safe Operating Area curves or call the factory for guidance on thermal derating.

Efficiency vs Output Current

Power Dissipation vs Output Current

Ripple vs Output Current

Note A:

Characteristic data has been developed from actual products tested at 25°C. This data is considered typical data for the DC-DC Converter.

Note B:

SOA curves represent operating conditions at which internal components are at or below manufacturer’s maximum rated operating temperatures.

24W 12V Input Positive to Negative

Voltage Converter

PT6640 Series

60.0

65.0

70.0

75.0

80.0

85.0

90.0

00.5

11.5

2

2.533.5

4

Output Current (A)

PT6643

PT6642

PT6641

PT6646

0

25

50

75

100

125

150

00.511.522.533.5

4

Output Current (A)

PT6645

PT6643

PT6644

PT6642

PT6641

PT6646

0

1

2

3

4

5

6

00.5

11.522.5

33.5

4

Output Current (A)

PT6645

PT6643

PT6644

PT6642

PT6641

PT6646

20.0

30.0

40.0

50.0

60.0

70.0

80.0

90.0

0.0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

Output Current (A)

200LFM

120LFM

60LFM

Nat conv

Airflow