PWM peak current mode controller for PoE and telecom systems

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  • The PM8804 is a PWM controller that integrates all the circuitry required to design a smart and efficient 48 V converter for PoE and telecom mid-power applications.

    It features a programmable oscillator for the switching frequency, adjustable slope compensation, dual complementary low-side drivers with programmable dead time, programmable soft-start, soft turn off and a programmable current sense blanking time.
    An internal high-voltage linear regulator with a typical 20 mA output current allows the device to start up with a minimum of external components.
    Complementary 1 A peak gate drivers make possible to implement high power topologies, while when the second drives is not used, like with simple low power flyback converters, it can be turned off.
    The device embeds a set of protections that enables the design of a self-protected converter with the scope to eliminate the risk of catastrophic failure at system level.
    The device targets high efficiency conversion at wide range of load.

    主要特性

    • PWM peak current mode controller
    • Input operating voltage up to 75 V
    • Internal high-voltage start up regulator with 20 mA current capability
    • Current sense with programmable blanking time up to 200 ns
    • Programmable fixed frequency up to 1 MHz
    • Soft-start up with settable time
    • Soft turn off (optionally disabled)
    • Dual low-side complementary gate drivers
    • Programmable dead time from 10 to 200 ns between GATE1 and GATE2
    • Gate drivers have 1 A peak capability
    • GATE2 optionally turned off for reduced consumption
    • 80% maximum duty cycle with internal slope compensation
    • Internal pull-up resistor on CTL pin enables the optocoupler connection
    • Operating current consumption < 1.5 mA
    • Embedded protections:
      • Severe overcurrent protection with latch after 4 events
      • Delayed overload protection with automatic restart
      • Feedback disconnection (OV) protection on VC
      • Thermal shutdown
    • High efficiency topologies:
      • Flyback, forward
      • Flyback with synchronous rectification
      • Flyback with active clamp
      • Forward with active clamp

样片和购买

产品型号
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PM8804TR VFQFPN 16 3x3x1.0 Tape And Reel
Active
0.6017 10000 EAR99 PHILIPPINES 查看供货情况

Distributor availability ofPM8804TR

代理商名称
地区 库存 最小订购量 Third party link
DIGIKEY WORLDWIDE 4298 1 Order Now
AVNET AMERICA 4000 0 Order Now
FUTURE WORLDWIDE 4000 4000 Order Now
MOUSER WORLDWIDE 4497 1 Order Now
Farnell Element14 EUROPE 190 1 Order Now
RUTRONIK EUROPE 50 1000 Order Now

代理商库存报告日期: 2019-07-21

代理商名称

DIGIKEY

库存

4298

Min.Order

1

地区

WORLDWIDE Order Now

AVNET

库存

4000

Min.Order

0

地区

AMERICA Order Now

FUTURE

库存

4000

Min.Order

4000

地区

WORLDWIDE Order Now

MOUSER

库存

4497

Min.Order

1

地区

WORLDWIDE Order Now

Farnell Element14

库存

190

Min.Order

1

地区

EUROPE Order Now

RUTRONIK

库存

50

Min.Order

1000

地区

EUROPE Order Now

代理商库存报告日期: 2019-07-21

Get sample

PM8804TR

封装

VFQFPN 16 3x3x1.0

包装类型

Tape And Reel

Unit Price (US$)

0.6017*

Distributor availability ofPM8804TR

代理商名称
地区 库存 最小订购量 Third party link
DIGIKEY WORLDWIDE 4298 1 Order Now
AVNET AMERICA 4000 0 Order Now
FUTURE WORLDWIDE 4000 4000 Order Now
MOUSER WORLDWIDE 4497 1 Order Now
Farnell Element14 EUROPE 190 1 Order Now
RUTRONIK EUROPE 50 1000 Order Now

代理商库存报告日期: 2019-07-21

代理商名称

DIGIKEY

库存

4298

Min.Order

1

地区

WORLDWIDE Order Now

AVNET

库存

4000

Min.Order

0

地区

AMERICA Order Now

FUTURE

库存

4000

Min.Order

4000

地区

WORLDWIDE Order Now

MOUSER

库存

4497

Min.Order

1

地区

WORLDWIDE Order Now

Farnell Element14

库存

190

Min.Order

1

地区

EUROPE Order Now

RUTRONIK

库存

50

Min.Order

1000

地区

EUROPE Order Now

代理商库存报告日期: 2019-07-21

供货状态

Active

Unit Price (US$)

0.6017

数量

10000

ECCN (US)

EAR99

Country of Origin

PHILIPPINES

(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office  or our Distributors

Education

This product is labeled Sustainable Technology.

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    • 产品型号

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00 选择要下载的文档

技术文档

    • 描述 版本 文档大小 操作
      DS12490
      PWM peak current mode controller for PoE and telecom systems
      1.0
      813.5 KB
      PDF
      DS12490

      PWM peak current mode controller for PoE and telecom systems

    • 描述 版本 文档大小 操作
      AN3373
      IEEE802.3at compliant PD + PS design based on PM8803 low power, synchronous flyback PoE converter
      1.0
      1.23 MB
      PDF
      AN3387
      PM8803 layout guidelines
      1.0
      944.44 KB
      PDF
      AN3373

      IEEE802.3at compliant PD + PS design based on PM8803 low power, synchronous flyback PoE converter

      AN3387

      PM8803 layout guidelines

    • 描述 版本 文档大小 操作
      AN5207
      12 V/8 A, active clamp forward converter, Power Over Ethernet (PoE) IEEE 802.3bt compliant reference design
      2.0
      2.85 MB
      PDF
      AN5190
      5 V/20 A, active clamp forward converter, Power Over Ethernet (PoE) - IEEE 802.3bt compliant reference design
      2.0
      3.24 MB
      PDF
      AN5237
      High power Poe PD, 3V3 up to 20 A active clamp forward evaluation board
      1.0
      3.23 MB
      PDF
      AN5174
      Power over Ethernet - PD converter with 5 V 8 A output, synchronous Flyback, IEEE802.3bt standard compliant
      1.0
      1.34 MB
      PDF
      AN5207

      12 V/8 A, active clamp forward converter, Power Over Ethernet (PoE) IEEE 802.3bt compliant reference design

      AN5190

      5 V/20 A, active clamp forward converter, Power Over Ethernet (PoE) - IEEE 802.3bt compliant reference design

      AN5237

      High power Poe PD, 3V3 up to 20 A active clamp forward evaluation board

      AN5174

      Power over Ethernet - PD converter with 5 V 8 A output, synchronous Flyback, IEEE802.3bt standard compliant

出版刊物和宣传资料

    • 描述 版本 文档大小 操作
      Power Management Guide 06.2019
      5.5 MB
      PDF

      Power Management Guide

产品型号 供货状态 封装 等级规格 符合RoHS级别 材料声明**
PM8804TR
Active
VFQFPN 16 3x3x1.0 工业 Ecopack2

PM8804TR

Package:

VFQFPN 16 3x3x1.0

Material Declaration**:

PDF XML

Marketing Status

Active

Package

VFQFPN 16 3x3x1.0

Grade

Industrial

RoHS Compliance Grade

Ecopack2

(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.