PT3102 [TI]

No External Components Required;


型号：	PT3102
厂家：	TEXAS INSTRUMENTS
描述：	No External Components Required
文件：	总3页 (文件大小：199K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

Application Notes

Mechanical Outline

For assistance or to order, call (800) 531-5782

Product Selector Guide

P T 3 1 0 0 S e r i e s

4 8 V

15 WATT 48V TO 5V/12V/15V

ISOLATED DC-DC CONVERTER

Revised 8/13/98

• Power Density 15 Watts/in³

• Wide Input Voltage Range

36V to 75V

• 80% Efficiency

• 500 VDC Isolation

• Industry’s Smallest Footprint

• Fast Transient Response

• No External Components Required

Isolated DC-DC Converters advance the

state-of-the-art for board-mounted con-

verters by employing high switching

frequencies greater than 650 KHz and

planar magnetics and surface-mount

construction. They feature the industry’s

smallest footprint, a power density of

15 Watts/in³, and operate at 80% effi-

ciency. They are designed for Telecom,

Industrial, Computer, Medical, and other

distributed power applications requiring

input-to-output isolation.

Power Trends’ PT3101A (5V),

PT3102A (12V) and PT3103A (15V)

Specifications

Standard Application

PT3100 SERIES

Characteristics

(T_a=25°C unless noted)

Symbols

Conditions

Min

Typ

Max

Units

On/Off

Output Current

I_o

Over V_inrange

V_o= 5V

—

3.0

+Vin

-Vin

+Vout

-Vout

V_o= 12V

V_o= 15V

1.25

1.0

PT3100

Current Limit

I_cl

V_in= 36V

V_o= 5V

V_o= 12V

V_o= 15V

—

4.00

1.75

1.4

—

On/Off Standby Current

Short Circuit Current

I_{in standby}

I_sc

V_in= 48V, Pin 1 = -V_in

—

V_in= 48V

V_o= 5V

—

5.5

3.5

2.0

—

V_o= 12V

V_o= 15V

Pin-Out Information

Pin Function

Inrush Current

I_ir

t_ir

V_in= 48V @ max I_o

On start-up

—

0.6

1.0

5.0

mSec

Remote

ON/OFF

Input Voltage Range

V_in

I_o= 0.1 to max I_o

36.0

48.0

75.0

-V_in

Output Voltage Tolerance ∆V_o

Over V_inRange

—

±1.0

±2.0

%V^o

T_A= -20°C to 70°C

+V_in

Ripple Rejection

Line Regulation

Load Regulation

V_oRipple/Noise

Over V_inrange @ 120 Hz

Over V_inrange @ max I_o

10% to 100% of I_omax

—

-V_out

Reg_line

Reg_load

V_n

±0.2

±0.4

±1.0

%V_o

+V_out

Do not connect

V_in=48V, I_o=3.0A, V_o=5V

V_in=48V, I_o=1.25A, V_o=12V

V_in=48V, I_o=1.0A, V_o=15V

—

100

150

200

mV_pp

120

100

Transient Response

Efficiency

t_tr

50% load change

—

100

3.0

200

5.0

µSec

%V_o

V_oover/undershoot

Ordering Information

Through-Hole

PT3101A = 5 Volts

PT3102A = 12 Volts

PT3103A = 15 Volts

V_in=48V, I_o=3.0A, V_o=5V

V_in=48V, I_o=1.25A, V_o=12V

V_in=48V, I_o=1A, V_o=15V

—

Switching Frequency

ƒ_o

Over V_inand I_o,

V_o=5V

800

600

850

650

900

700

kHz

V_o=12V/15V

Recommended Operating T_a

Temperature Range

V_in= 48V @ max I_o

-20

—

+70*

°C

Free air convection, (40-60LFM)

Free Air Convection, (40-60LFM)

@ Thermal shutdown

—

Surface Mount

Thermal Resistance

Case Temperature

Storage Temperature

Mechanical Shock

θ_ja

T_c

T_s

—

°C/W

°C

PT3101C = 5 Volts

PT3102C = 12 Volts

PT3103C = 15 Volts

(For dimensions and PC

board layout, see Package

Style 700.)

—

100

110

-40

°C

Per Mil-STD-202F, Method 213B,

6mS, Half-sine, mounted to a PCB

—

G’s

Mechanical Vibration

Weight

—

Per Mil-STD-202F, Method 204D,

10-500Hz, Soldered in a PCB

—

G’s

—

grams

Isolation

Capacitance

Resistance

—

500

—

1100

—

MΩ

Flammability

—

Materials meet UL 94V-0

Remote On/Off

Off

Open or 2.5 to 7.0 VDC above -V_in

Short or 0 to 0.8 VDC above -V_in

* See Thermal Derating Curves

Power Trends, Inc. 27715 Diehl Road, Warrenville, IL 60555 (800) 531-5782 Fax: (630) 393-6902 http://www.powertrends.com

For assistance or to order, call (800) 531-5782

P T 3 1 0 0 S e r i e s

4 8 V

C H A R A C T E R I S T I C

D A T A

PT3101, 5.0 VDC (See Note 1)

PT3102, 12.0 VDC (See Note 1)

PT3103, 15.0 VDC (See Note 1)

Efficiency vs Output Current

100

Vin

36V

48V

60V

72V

36V

48V

60V

72V

36V

48V

60V

72V

0.5

1.5

2.5

0.25

0.5

0.75

1.25

0.25

0.5

0.75

Iout-(Amps)

Ripple vs Output Current

120

100

120

100

120

100

Vin

72V

Vin

72V

Vin

72V

60V

48V

36V

60V

48V

36V

60V

48V

36V

0.25

0.5

0.75

0.25

0.5

0.75

1.25

0.5

1.5

2.5

Iout-(Amps)

Thermal Derating (T_a)

(See Note 2)

Thermal Derating (T_a)

(See Note 2)

Thermal Derating (T_a)

(See Note 2)

60°

70°

2.5

1.25

60°

0.75

0.5

70°

0.75

0.5

0.25

1.5

0.25

0.5

Vin-(Volts)

Power Dissipation vs Output Current

Vin

72V

Vin

72V

Vin

72V

60V

48V

36V

60V

48V

36V

60V

48V

36V

0.25

0.5

0.75

1.25

0.25

0.5

0.75

0.5

1.5

2.5

Iout-(Amps)

Note 1: All data listed in the above graphs, except for derating data, has been developed from actual products tested at 25°C. This data is considered typical data for the DC-DC Converter.

Note 2: Thermal derating graphs are developed in free air convection cooling of 40-60 LFM.

Power Trends, Inc. 27715 Diehl Road, Warrenville, IL 60555 (800) 531-5782 Fax: (630) 393-6902 http://

www.powertrends.com

IMPORTANT NOTICE

Texas Instruments and its subsidiaries (TI) reserve the right to make changes to their products or to discontinue

any product or service without notice, and advise customers to obtain the latest version of relevant information

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pertaining to warranty, patent infringement, and limitation of liability.

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accordance with TI’s standard warranty. Testing and other quality control techniques are utilized to the extent

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