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产品型号DCP012405BP的概述

DCP012405BP芯片概述 DCP012405BP是一款高性能的DC-DC降压转换器，主要用于提供稳定的输出电压和高效率的电源管理。其输入电压范围广泛，适应不同应用场景的需求，特别是在电源密集型设备中表现出色。DCP012405BP的设计旨在满足对体积、散热和效率的严格要求，广泛应用于通信设备、工业设备和嵌入式系统中。作为一款高度集成化的DC-DC控制器，DCP012405BP不但具有高达93%的效率，还支持输出电流高达500mA，使其成为精密电源解决方案的理想选择。此外，其工作温度范围广泛（通常为-40°C到+85°C），确保了在恶劣环境下的稳定运行。该芯片已获得多项国际认证，说明其在安全性和可靠性方面的优越性。 DCP012405BP详细参数 DCP012405BP的具体参数如下： - 输入电压范围: 4.5V 至 15V - 输出电压: 5V（固定输出） - 输出电流: 最...

产品型号DCP012405BP的Datasheet PDF文件预览

DCP01

DCP01B

Series

DCP01

For most current data sheet and other product

information, visit www.burr-brown.com

Miniature, 1W Isolated

UNREGULATED DC/DC CONVERTERS

APPLICATIONS

FEATURES

● POINT-OF-USE POWER CONVERSION

● GROUND LOOP ELIMINATION

● DATA ACQUISITION

● UP TO 85% EFFICIENCY

● THERMAL PROTECTION

● DEVICE-TO-DEVICE SYNCHRONIZATION

● SHORT CIRCUIT PROTECTION

● INDUSTRIAL CONTROL AND

INSTRUMENTATION

● EN55022 CLASS B EMC PERFORMANCE

● UL1950 RECOGNIZED COMPONENT

● JEDEC PDIP-14 AND GULL-WING PACKAGES

● TEST EQUIPMENT

DESCRIPTION

The DCP01B series is a family of 1W, unregulated,

isolated DC/DC converters. Requiring a minimum of

external components and including on-chip device

protection, the DCP01B series provides extra features

such as output disable and synchronization of switch-

ing frequencies.

The use of a highly integrated package design results

in highly reliable products with a power density of

40W/in³(2.4W/cm³). This combination of features

and small size makes the DCP01B suitable for a wide

range of applications.

SYNC_OUT

÷ 2

Reset

800kHz

Oscillator

V_OUT

Power

Stage

Watch-dog/

start-up

SYNC_IN

PSU

Thermal

Shutdown

I_BIAS

V_S

Power Controller IC

International Airport Industrial Park

•

Mailing Address: PO Box 11400, Tucson, AZ 85734

•

Street Address: 6730 S. Tucson Blvd., Tucson, AZ 85706 • Tel: (520) 746-1111

Twx: 910-952-1111

•

Internet: http://www.burr-brown.com/

•

Cable: BBRCORP • Telex: 066-6491 • FAX: (520) 889-1510 • Immediate Product Info: (800) 548-6132

Printed in U.S.A. May, 2000

^PDS-1^1586B

DCP01B

SPECIFICATIONS

At T_A= +25°C, unless otherwise specified.

DCP01B SERIES

TYP

PARAMETER

CONDITIONS

MIN

MAX

UNITS

OUTPUT

Power

Ripple

100% Full Load

O/P Capacitor = 1µF, 50% Load

Room to Cold

0.97

0.046

0.016

mVp-p

%/°C

Voltage vs Temp

Room to Hot

INPUT

Voltage Range on V_S

–10

ISOLATION

Voltage

1s Flash Test

60s Test, UL1950⁽¹⁾

kVrms

LINE

Regulation

%/1% of V_S

SWITCHING/SYNCHRONIZATION

Oscillator Frequency (f_OSC

Sync Input Low

Sync Input Current

Disable Time

Capacitance Loading on SYNC_INPin

)

Switching Frequency = f_OSC/2

V_SYNC= +2V

800

kHz

µA

µs

0.4

External

RELIABILITY

Demonstrated

T_A= +55°C

FITS

THERMAL SHUTDOWN

IC Temperature at Shutdown

Shutdown Current

150

°C

TEMPERATURE RANGE

Operating

–40

+100

°C

INPUT

OUTPUT

LOAD

NO LOAD

BARRIER

VOLTAGE (V)

REGULATION (%)

CURRENT (mA)

EFFICIENCY (%) CAPACITANCE (pF)

V_S

V_NOM

I_Q

C_ISO

75% LOAD⁽²⁾

10% TO 100% LOAD⁽³⁾

0% LOAD

100% LOAD

TYP

V_ISO= 750V_RMS

TYP

PRODUCT

MIN

TYP

MAX

MIN

TYP

MAX

TYP

MAX

TYP

DCP010505B

DCP010505DB

DCP010512B

DCP010512DB

DCP010515B

DCP010515DB

DCP012405B

4.5

21.6

5.5

26.4

4.75

±4.25

11.4

5.25

±5.75

12.6

3.6

3.8

5.1

4.0

3.8

4.7

3.8

±5

±12

±11.4

14.25

±14.25

4.75

±12.6

15.75

±15 ±15.75

5.25

NOTES: (1) During UL1950 recognition tests only. (2) 100% Load Current = 1W/V_NOMTYP. (3) Load regulation = (V_OUTat 10% Load – V_OUTat 100% Load)/V_OUT

at 75% Load.

ABSOLUTE MAXIMUM RATINGS

ELECTROSTATIC

DISCHARGE SENSITIVITY

This integrated circuit can be damaged by ESD. Burr-Brown

recommends that all integrated circuits be handled with

Input Voltage:

5V Input Models .................................................................................. 7V

24V Input Models .............................................................................. 29V

Storage Temperature ...................................................... –60°C to +125°C

Lead Temperature (soldering, 10s) ................................................. 270°C

appropriate precautions. Failure to observe proper handling

and installation procedures can cause damage.

ORDERING INFORMATION

ESD damage can range from subtle performance degrada-

tion to complete device failure. Precision integrated circuits

may be more susceptible to damage because very small

parametric changes could cause the device not to meet its

published specifications.

(

( B )

)

(D )

DCP01 05 05

Basic Model Number: 1W Product

Voltage Input:

5V In

Voltage Output:

5V Out

Dual Output:

Model Revision:

Package Code:

P = PDIP-14

P-U = PDIP-14 Gull-Wing

DCP01B

PIN CONFIGURATION (Single-DIP and Gull-Wing)

PIN CONFIGURATION (Dual-DIP and Gull-Wing)

Top View

DIP

Top View

DIP

14 SYNC_IN

V_S

14 SYNC_IN

V_S

DCP01DB

DCP01B

+V_OUT

–V_OUT

SYNC_OUT

PIN DEFINITION (Single-DIP)

PIN DEFINITION (Dual-DIP)

PIN #

PIN NAME

DESCRIPTION

PIN #

PIN NAME

DESCRIPTION

V_S

Voltage Input

V_S

Voltage Input

Input Side Common

Output Side Common

+Voltage Out

Not Connected

Unrectified Transformer Output

Synchronization Pin

Input Side Common

Output Side Common

+Voltage Out

–Voltage Out

Unrectified Transformer Output

Synchronization Pin

+V_OUT

SYNC_OUT

SYNC_IN

+V_OUT

–V_OUT

SYNC_OUT

SYNC_IN

PACKAGE/ORDERING INFORMATION

PACKAGE

SPECIFIED

DRAWING

NUMBER

TEMPERATURE

RANGE

PACKAGE

MARKING

ORDERING

NUMBER⁽¹⁾

TRANSPORT

MEDIA

PRODUCT

PACKAGE

Single

DCP010505BP

DCP010505BP-U

DCP010512BP

DCP010512BP-U

DCP010515BP

DCP010515BP-U

DCP012405BP

DCP012405BP-U

Dual

DIP-14

DIP-14 Gull-Wing

DIP-14

DIP-14 Gull-Wing

DIP-14

DIP-14 Gull-Wing

DIP-14

DIP-14 Gull-Wing

010-1

010-2

010-1

010-2

010-1

010-2

010-1

010-2

–40°C to +100°C

DCP010505BP

DCP010505BP-U

DCP010512BP

DCP010512BP-U

DCP010515BP

DCP010515BP-U

DCP012405BP

DCP012405BP-U

DCP010505BP

DCP010505BP-U/700

DCP010512BP

DCP010512BP-U/700

DCP010515BP

DCP010515BP-U/700

DCP012405BP

DCP012405BP-U/700

Rails

Tape and Reel

Rails

Tape and Reel

Rails

Tape and Reel

Rails

Tape and Reel

DCP010505DBP

DCP010505DBP-U

DCP010512DBP

DCP010512DBP-U

DCP010515DBP

DCP010515DBP-U

DIP-14

DIP-14 Gull-Wing

DIP-14

DIP-14 Gull-Wing

DIP-14

010-1

010-2

010-1

010-2

010-1

010-2

–40°C to +100°C

DCP010505DBP

Rails

Tape and Reel

Rails

Tape and Reel

Rails

DCP010505DBP-U DCP010505DBP-U/700

DCP010512DBP DCP010512DBP

DCP010512DBP-U DCP010512DBP-U/700

DCP010515DBP DCP010515DBP

DCP010515DBP-U DCP010515DBP-U/700

DIP-14 Gull-Wing

Tape and Reel

NOTE: (1) Models with a slash (/) are available only in Tape and Reel in the quantities indicated (e.g., /700 indicates 700 devices per reel). Ordering 700 pieces

of “DCP010505BP-U/700” will get a single 700-piece Tape and Reel.

The information provided herein is believed to be reliable; however, BURR-BROWN assumes no responsibility for inaccuracies or omissions. BURR-BROWN assumes

no responsibility for the use of this information, and all use of such information shall be entirely at the user’s own risk. Prices and specifications are subject to change

without notice. No patent rights or licenses to any of the circuits described herein are implied or granted to any third party. BURR-BROWN does not authorize or warrant

any BURR-BROWN product for use in life support devices and/or systems.

DCP01B

TYPICAL PERFORMANCE CURVES

At T_A= +25°C, unless otherwise noted.

DCP010505B

OUTPUT RIPPLE vs LOAD (20MHz BW)

DCP010505B V_OUTvs V_S

5.5

5.4

5.3

5.2

5.1

5.0

4.9

4.8

4.7

4.6

4.5

4.4

1µF Ceramic

4.7µF Ceramic

10µF Ceramic

4.5 4.6 4.7 4.8 4.9 5.0 5.1 5.2 5.3 5.4 5.5

V_S(V)

90 100

Load (%)

DCP010505B V_OUTvs LOAD

DCP010505B EFFICIENCY vs LOAD

5.8

5.7

5.6

5.5

5.4

5.3

5.2

5.1

5.0

4.9

4.8

4.7

100

Load (%)

DCP010505DB V_OUTvs LOAD

DCP010505DB EFFICIENCY vs LOAD

5.8

5.7

5.6

5.5

5.4

5.3

5.2

5.1

5.0

4.9

4.8

4.7

+V_OUT

–V_OUT

100

Load (%)

DCP01B

TYPICAL PERFORMANCE CURVES (Cont.)

At T_A= +25°C, unless otherwise noted.

DCP010512B EFFICIENCY vs LOAD

DCP010512B V_OUTvs LOAD

14.5

13.5

12.5

11.5

100

Load (%)

DCP010512DB V_OUTvs LOAD

DCP010512DB EFFICIENCY vs LOAD

14.5

14.0

13.5

13.0

12.5

12.0

11.5

11.0

10.5

10.00

+V_OUT

–V_OUT

90 100

Load (%)

DCP010515B V_OUTvs LOAD

DCP010515B EFFICIENCY vs LOAD

17.5

16.5

15.5

14.5

100

Load (%)

DCP01B

TYPICAL PERFORMANCE CURVES (Cont.)

At T_A= +25°C, unless otherwise noted.

DCP010515DB EFFICIENCY vs LOAD

DCP010515DB V_OUTvs LOAD

+V_OUT

–V_OUT

90 100

Load (%)

DCP012405B EFFICIENCY vs LOAD

DCP012405B V_OUTvs LOAD

5.60

5.50

5.40

5.30

5.20

5.10

5.00

4.90

4.80

100

Load (%)

DCP010505B

CONDUCTED EMISSIONS (125% Load)

DCP010505B

CONDUCTED EMISSIONS (8% Load)

–10

–20

–10

–20

0.15

Frequency (MHz)

DCP01B

If synchronized devices are used, it should be noted that, at

start up, all devices will draw maximum current simulta-

neously. This can cause the input voltage to dip and should

it dip below the minimum input voltage (4.5V), the devices

may not start up. A 2.2µF capacitor should be connected

close to the input pins.

FUNCTIONAL DESCRIPTION

OVERVIEW

The DCP01B offers up to 1W of unregulated output power

with a typical efficiency of up to 85%. This is achieved

through highly integrated packaging technology and the

implementation of a custom power stage and control IC. The

circuit design utilizes an advanced BiCMOS/DMOS pro-

cess.

If more than eight devices are to be synchronized, it is

recommended that the SYNC_INpins are driven by an exter-

nal device. Details are contained in a separate applications

bulletin (AB-153).

POWER STAGE

CONSTRUCTION

This uses a push-pull, center-tapped topology switching at

400kHz (divide by 2 from 800kHz oscillator).

The DCP01B’s basic construction is the same as standard

ICs. There is no substrate within the molded package. The

DCP01B is constructed using an IC, rectifier diodes, and a

wound magnetic toroid on a leadframe. As there is no solder

within the package, the DCP01B does not require any

special PCB assembly processing. This results in an isolated

DC/DC converter with inherently high reliability.

OSCILLATOR AND WATCHDOG

The onboard 800kHz oscillator generates the switching

frequency via a divide by 2 circuit. The oscillator can be

synchronized to other DCP01B circuits or an external source,

and is used to minimize system noise.

A watchdog circuit checks the operation of the oscillator

circuit. The oscillator can be stopped by pulling the SYNC

pin LOW. The output pins will be tri-stated. This will occur

in 2µs.

ADDITIONAL FUNCTIONS

DISABLE/ENABLE

The DCP01B can be disabled or enabled by driving the SYNC

pin using an open drain CMOS gate. If the SYNC_INpin is

pulled low, the DCP01B will be disabled. The disable time

depends upon the external loading; the internal disable func-

tion is implemented in 2µs. Removal of the pull down will

cause the DCP01B to be enabled.

THERMAL SHUTDOWN

The DCP01B is protected by a thermal shutdown circuit. If

the on-chip temperature exceeds 150°C, the device will shut

down. Once the temperature falls below 150°C, normal

operation will resume.

Capacitive loading on the SYNC_INpin should be minimized

in order to prevent a reduction in the oscillator frequency.

SYNCHRONIZATION

DECOUPLING

In the event that more than one DC/DC converter is needed

onboard, beat frequencies and other electrical interference

can be generated. This is due to the small variations in

switching frequencies between the DC/DC converters.

Ripple Reduction

The high switching frequency of 400kHz allows simple

filtering. To reduce ripple, it is recommended that at least a

1µF capacitor is used on V_OUT. Dual outputs should both be

decoupled to pin 5. A 2.2µF low ESR capacitor on the input

of the 5V in versions, and a 0.47µF low ESR cap on the 24V

DCP01B in versions is recommended.

The DCP01B overcomes this by allowing devices to be

synchronized to one another. Up to eight devices can be

synchronized by connecting the SYNC_INpins together, tak-

ing care to minimize the capacitance of tracking. Stray

capacitance (> 3pF) will have the effect of reducing the

switching frequency, or even stopping the oscillator circuit.

V_SUPPLY

V_{OUT 1}

V_S

SYNC_IN

DCP

01B

V_OUT1+ V_{OUT 2}

V_S

V_{OUT 2}

DCP

01B

SYNC_IN

COM

FIGURE 1. Connecting the DCP01B in Series.

DCP01B

The DCP01B is a switching power supply and as such can

place high peak current demands on the input supply. In

order to avoid the supply falling momentarily during the fast

switching pulses ground and power planes should be used to

track the power to the input of DCP01B. If this is not

possible then the supplies must be connected in a star

formation with the tracks made as wide as possible.

Connecting the DCP01B in Series

Multiple DCP01B isolated 1W DC/DC converters can be

connected in series to provide nonstandard voltage rails.

This is possible by utilizing the floating outputs provided by

the DCP01B’s galvanic isolation.

Connect the positive V_OUTfrom one DCP01B to the nega-

tive V_OUT(0V) of another (see Figure 1). If the SYNC_INpins

are tied together, the self-synchronization feature of the

DCP01B will prevent beat frequencies on the voltage rails.

The SYNC_INfeature of the DCP01B allows easy series

connection without external filtering, minimizing cost.

If the SYNC_INpin is being used then the tracking between

device SYNC_INpins should be short to avoid stray capaci-

tance. If the SYNC_INpin is not being used it is advisable to

place a guard ring, (connected to input ground) around this

pin to avoid any noise pick up.

The outputs on dual output DCP01B versions can also be

connected in series to provide two times the magnitude of

V_OUTas shown in Figure 2. For example, a dual 15V

DCP01B could be connected to provide a 30V rail.

The output should be taken from the device using ground

and power planes, this will ensure minimum losses.

A good quality low ESR capacitor placed as close as

practicable across the input will reduce reflected ripple and

ensure a smooth start up.

Connecting the DCP01B in Parallel

If the output power from one DCP01B is not sufficient, it is

possible to parallel the outputs of multiple DCP01Bs, as

shown in Figure 3. Again, the SYNC_INfeature allows easy

synchronization to prevent power-rail beat frequencies at no

additional filtering cost.

A good quality low ESR capacitor placed as close as

practicable across the rectifier output terminal and output

ground will give the best ripple and noise performance.

THERMAL MANAGEMENT

Due to the high power density of this device it is advisable

to provide ground planes on the input and output.

PCB LAYOUT

Ripple and Noise

Careful consideration should be given to the layout of the

PCB in order that the best results can be obtained.

V_SUPPLY

+V_OUT

V_S

+V_OUT

–V_OUT

DCP

01B

–V_OUT

COM

FIGURE 2. Connecting Dual Outputs in Series.

V_SUPPLY

V_OUT

V_S

SYNC_IN

DCP

01B

V_S

2 x Power Out

V_OUT

SYNC_IN

COM

FIGURE 3. Connecting Multiple DCP01Bs in Parallel.

DCP01B

DCP012405BP相关文章

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DCP012405BP产品参数

型号:	DCP012405BP
生命周期：	Transferred
IHS 制造商：	BURR-BROWN CORP
包装说明：	PLASTIC, DIP-14
Reach Compliance Code：	unknown
风险等级：	5.75
Is Samacsys：	N
模拟集成电路 - 其他类型：	DC-DC UNREGULATED POWER SUPPLY MODULE
最大输入电压：	26.4 V
最小输入电压：	21.6 V
标称输入电压：	24 V
JESD-30 代码：	R-PDIP-T14
最大负载调整率：	23%
功能数量：	1
输出次数：	1
端子数量：	14
最高工作温度：	100 °C
最低工作温度：	-40 °C
最大输出电压：	5.25 V
最小输出电压：	4.75 V
标称输出电压：	5 V
封装主体材料：	PLASTIC/EPOXY
封装形状：	RECTANGULAR
封装形式：	IN-LINE
认证状态：	Not Qualified
表面贴装：	NO
技术：	BCDMOS
温度等级：	INDUSTRIAL
端子形式：	THROUGH-HOLE
端子位置：	DUAL
最大总功率输出：	1 W
微调/可调输出：	NO
Base Number Matches：	1

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产品型号DCP012405BP的概述

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