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PT4711鈥?8V

45-W Dual-Output Isolated

DC/DC Converter

SLTS225 APRIL 2004

Features

鈥?/div>

Input Voltage: 36 V to 75 V

鈥?/div>

Dual Output (15 V / 15 V)

(Independently Regulated!)

鈥?/div>

Separate Output Returns

(Accommodates 鹵15 V or +30 V)

鈥?/div>

Internal Power-Up Sequencing

鈥?/div>

Flexible On/Off Control

鈥?/div>

Output Current Limit

鈥?/div>

Fixed Frequency Operation

鈥?/div>

Over-T

emperature Shutdown

Under-Voltage Lockout

1500 VDC Isolation

Space-Saving Solderable Case

1.2 sq. in. PCB Area (suffix N)

鈥?/div>

Surface Mount Option

鈥?/div>

Safety Approvals (Pending):

UL 60950, cUL 60950

Description

The PT4711 Excalibur鈩?power

module is a 45-watt rated DC/DC

converter that produces two regu-

lated output supply voltages from a

standard (鈥?8 V) telecom central

office supply.

Both of the outputs from this

module are truly independent. Each

is separately regulated and has its

own negative return. This allows the

flexibility of configuring the output

for up to three voltage options. This

includes a complimentary dual 鹵15-V,

or a single +30-V or 鈥?0-V output.

The PT4711 incorporates many

features to simplify system integra-

tion. These include a flexible On/Off

enable control, input under-voltage

lock-out, and over-temperature pro-

tection. All outputs are short-circuit

protected, and internally sequenced

for simultaneous power-up and power-

down.

The module is packaged in a

space-saving solderable copper case,

requires no heat sink, and can occupy

as little as 1.2 in

2

of PCB area.

Ordering Information

PT4711鉂?/div>

= 15 V / 15 V

鉂?/div>

PT Series Suffix

(PT1234

x

)

Case/Pin

Configuration

Vertical

Horizontal

SMD

Order

Suffix

Package

Code

(ENM)

(ENN)

(ENP)

N

A

C

(Reference the applicable package code drawing for

the dimensions and PC layout)

Typical Application

PT4711

+Vo

1

14

17

Co

1

+15 V

+

+V

IN

1

+V

IN

V

1

Adj

鈥揤o

1

16

+

C

IN

3

4

2

EN 2

EN 1

鈥揤

IN

+Vo

2

V

2

Adj

鈥揤o

2

18

+

21

20

Co

2

鈥揤

IN

鈥?5 V

Co

1

, Co

2

:

Cin:

EN1 & EN2 pins:

Recommended 150 碌F

Optional 47 碌F electrolytic

See On/Off Enable Logic

For technical support and further information, visit http://power.ti.com

標準包裝
8
類別
電源 - 板載
家庭
DC DC Converters
系列
PT4710
類型
隔離
輸出數(shù)
2
電壓 - 輸入（最?。?/label>
36V
電壓 - 輸入（最大）
75V
Voltage - Output 1
15V
Voltage - Output 2
15V
Voltage - Output 3
-
電流 - 輸出（最大）
1.5A，1.5A
電源（瓦） - 制造商系列
45W
電壓 - 隔離
1.5kV（1500V）
特點
-
安裝類型
表面貼裝
封裝/外殼
21-SIP SMD 模塊
尺寸/尺寸
-
包裝
托盤
工作溫度
-40°C ~ 85°C
效率
86%
電源（瓦特）- 最大
45W

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