SLTS146A datasheet(2/7 Pages) TI1

2 / 7 page

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

PT4310 Series —48V

6-W Low-Profile Dual-Output

Isolated DC-DC Converter

Specifications (Unless otherwise stated, Ta =25°C, Vin =53V, Cout =0µF, and Io1 = Io2 =Iotyp)

PT4310 SERIES

Characteristic

Symbol

Conditions

Min

Typ

Max

Units

Ouput Power

Po(tot)

——6

Output Current

Io1, Io2 (2)

Over Vin range

Each output

PT4311 ( ±5V)

0.2 (3)

0.6

1.0

PT4313 (±12V)

0.05 (3)

0.25

0.45

Io1 + Io2 (2)

Total, both outputs

PT4311

0.4

—

1.2

PT4313

0.1

—

0.5

Input Voltage Range

Vin

Over Io(tot) range

38.0

—

75.0

Set Point Voltage

Vo1, Vo2 (2)

PT4311

4.95

5.05

5.15

PT4313

11.85

12.15

Temperature Variation

Regtemp

–40° >Ta > +85°C

PT4311

—

±0.5

—

%Vo

PT4313

—

±1

—

Line Regulation

Regline

Over Vin range

—

±25

±40

Load Regulation

Regload

Io1 =0.6A, 0.2A ≤ Io2 ≤ 0.6A

PT4311

—

100

150

Io1 =0.25A, 0.05A ≤ Io2 ≤ 0.25A

PT4313

—

250

350

Total Output Voltage Variation

∆Votot

Over Vin range and load limits

PT4311

—

±5

—

%Vo

–40° >Ta > +85°C

PT4313

—

±4

—

No-load Output Voltage

Vo(no-load)

Io1 =Io2 = 0

PT4311

—

5.4

5.9

PT4313

—

12.7

Efficiency

PT4311

—

PT4313

—

Vo Ripple (pk-pk)

20MHz bandwidth

PT4311

—

100

mVpp

PT4313

—

150

Transient Response

ttr

20%

≤ Io2 ≤ 75%Iotyp, with 25%load step

—

200

—

µs

∆Vtr

Vo over/undershoot

PT4311

—

±75

—

PT4313

—

±200

—

Current Limit Threshold

ILim

Over Vin range,∆Vo =10%Vonom—

2.5

—

Short Circuit Current

Isc

—

1.0

—

Inrush Current

Iir

On start-up

—

0.5

—

tir

—

1.0

—

Switching Frequency

ƒo

Over Vin range

400

—

520

kHz

Under-Voltage Lockout

UVLO

—

Remote On/Off (Pin 11)

VIH

Referenced to –Vin (pin 17)

5.0

—

Open (4)

Input Requirements

VIL

–0.1

—

+1.0

IIL

—

–0.2

–

Standby Input Current

Iin standby

pins 11 & 17 connected

—

Internal Input Capacitance

Cin

—1

—µF

External Output Capacitance

Cout

Total across both outputs

PT4311

—

120

(5)

µF

PT4313

—

(5)

Isolation Voltage

Input - output

1500

—

Capacitance

—

1100

—

Resistance

——M

Ω

Maximum Operating

Over Vin range

-40

—

+85 (6)

°C

Temperature Range

Storage Temperature

—

-40

—

+125

°C

Reliability

MTBF

Per Bellcore TR-332

4.0

—

106 Hrs

50% stress, Ta =40°C, ground benign

Mechanical Shock

—

Per Mil-Std-883D, method 2002.3,

—

TBD

—

G’s

1mS, half-sine, mounted to a fixture

Mechanical Vibration

—

Per Mil-Std-883D, method 2007.2,

—

TBD

—

G’s

20-2000Hz, soldered in a PC board

Weight

—

grams

Flammability

—

Materials meet UL 94V-0

Notes:

(1) The adjustment of the output voltage for the PT4310 series is different than the PT4300 series.

(2) Vo1 & Vo2 may refer to +Vout and –Vout, or –Vout and +Vout respectively. The specification limits are quoted absolute.

(3) The DC/DC converter will operate at no load with reduced specifications. See “No-load Output Voltage” specification.

(4) The Remote On/Off (pin 11) has an internal pull-up. If the pin is left open the module will operate when input power is applied. Refer to the application

notes for interface considerations.

(5) Output capacitors are not required for proper operation. If added, Oscon® or tantalum types are recommended for operation below 0°C ambient.

(6) See Safe Operating Area curves or contact the factory for the appropriate derating.

SLTS146A Datasheet(PDF) 2 Page - Texas Instruments

SLTS146A Datasheet(HTML) 2 Page - Texas Instruments

Html Pages

1 2 3 4 5 6 7

Datasheet Download

Link URL