For technical support and more information, see inside back cover or visit www.ti.com

SLTS181 OCTOBER 2002

PT3660 Series

30-A Dual Output Isolated

DC/DC Converter

PT3660 SERIES

Characteristics

Symbols

Conditions

Min

Typ

Max

Units

Output Current

0

—

15

A

0

—

10

All voltages

0

—

15

A

Total (both outputs)

0

—

30

A

0

—

25

Input Voltage Range

36

48

75

V

Set Point Voltage Tolerance

—

Temperature Variation

—

±0.5

—

Line Regulation

—

±5

±10

mV

Load Regulation

1A

—

±2

±10

mV

1A

—

±2

±10

Cross Regulation

1A

—

±2

±10

mV

1A

—±2

±5

Total Output Variation

Includes set-point, line load,

—±2

±3

–40°C to +100°C case

—±2

±3

Efficiency

η

PT3661

—

88

—

PT3662

—

87

—

PT3663

—

86

—

PT3665

—

86

—

%

PT3666

—

85

—

PT3667

—

88

—

PT3668

—

86

—

—

—

75

—

—

50

Transient Response

—

25

100

µSec

(either output)

—

6.0

—

Current Limit

Each output with other unloaded

15.5

18

—

A

Output Rise Time

—

5

10

mSec

Output Over-Voltage Protection

OVP

Either output; shutdown and latch off

—

Switching Frequency

280

—

320

kHz

Under-Voltage-Lockout

UVLO

Rising

—

34

36

V

Falling

30

32

—

Internal Input Capacitance

—2

—µF

On/Off Control

Input High Voltage

3.5

—

—

V

Input Low Voltage

0

—

Input Low Current

—

0.5

—

mA

Standby Current

Pins 2, 3, & 4 connected

—

3

5

mA

External Output Capacitance

Per each output

0

—

5,000

µF

Primary/Secondary Isolation

1500

—

—

V

—

1500

—

pF

10

——M

Ω

Temperature Sense

Output voltage at temperatures:-

–40°C

—

—

V

100°C

—

—

Operating Temperature Range

–40

—

°C

Over-Temperature Protection

OTP

Case temperature (auto restart)

100

—

—

°C

Solder Reflow Temperature

Surface temperature of module pins or case

—

—

°C

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, Suffix N

—

—

G’s

20–2,000Hz

Suffixes A, C

—

—

Weight

—

—

—

90

—

grams

Flammability

—

Materials meet UL 94V-0

application note on output voltage adjustment.

(4) See SOA curves or consult the factory for the appropriate derating.

(5) During solder reflow of SMD package version do not elevate the module case, pins, or internal component temperatures above a peak of 215°C. For

further guidance refer to the application note, “Reflow Soldering Requirements for Plug-in Power Surface Mount Products,” (SLTA051).

(6) The case pins on the through-holed package types (suffixes N & A) must be soldered. For more information see the applicable package outline drawing.