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UCC28712DR

更新时间： 2024-11-09 11:06:55

品牌	Logo	应用领域
德州仪器 - TI		开关控制器开关式稳压器开关式控制器光电二极管电源电路开关式稳压器或控制器
页数	文件大小	规格书
30页	1328K
描述
具有 PSR、谷底开关、NTC 选项和 150mV 电缆补偿功能的恒压、恒流 PWM \| D \| 7 \| -40 to 125

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技术参数
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UCC28712DR 技术参数

是否无铅：	不含铅	是否Rohs认证：	符合
生命周期：	Active	包装说明：	SOP,
Reach Compliance Code：	compliant	ECCN代码：	EAR99
Factory Lead Time：	6 weeks	风险等级：	1.07
其他特性：	ALSO OPERATES IN AMPLITUTDE MODULATION CONTROL TECHNIIQUE	模拟集成电路 - 其他类型：	SWITCHING CONTROLLER
控制模式：	CURRENT/VOLTAGE-MODE	控制技术：	FREQUENCY MODULATION
最大输入电压：	35 V	最小输入电压：	9 V
标称输入电压：	25 V	JESD-30 代码：	R-PDSO-G7
JESD-609代码：	e4	长度：	4.9 mm
湿度敏感等级：	1	功能数量：	1
端子数量：	7	最高工作温度：	125 °C
最低工作温度：	-40 °C	封装主体材料：	PLASTIC/EPOXY
封装代码：	SOP	封装形状：	RECTANGULAR
封装形式：	SMALL OUTLINE	座面最大高度：	1.75 mm
标称供电电压 (Vsup)：	25 V	表面贴装：	YES
切换器配置：	SINGLE	最大切换频率：	106 kHz
温度等级：	AUTOMOTIVE	端子面层：	Nickel/Palladium/Gold (Ni/Pd/Au)
端子形式：	GULL WING	端子节距：	1.27 mm
端子位置：	DUAL	宽度：	3.9 mm

UCC28712DR 数据手册

UCC28710, UCC28711

UCC28712, UCC28713

UCC28714, UCC28715

www.ti.com

SLUSB86 –NOVEMBER 2012

Constant-Voltage, Constant-Current Controller With Primary-Side Regulation

Check for Samples: UCC28710, UCC28711, UCC28712, UCC28713, UCC28714, UCC28715

FEATURES

APPLICATIONS

•

< 10-mW No-Load Power

•

USB-Compliant Adapters and Chargers for

Consumer Electronics

Primary-Side Regulation (PSR) Eliminates

Opto-Coupler

–

Smart phones

Tablet computers

Cameras

•

±5% Voltage and Current Regulation Across

Line and Load

•

700-V Start-Up Switch

•

Standby Supply for TV and Desktop

White Goods

100-kHz Maximum Switching Frequency

Enables High-Power Density Charger Designs

•

Quasi-Resonant Valley-Switching Operation

for Highest Overall Efficiency

DESCRIPTION

The UCC28710 family of flyback power supply

controllers provides isolated-output Constant-Voltage

(CV) and Constant-Current (CC) output regulation

without the use of an optical coupler. The devices

process information from the primary power switch

and an auxiliary flyback winding for precise control of

output voltage and current.

•

Frequency Jitter to Ease EMI Compliance

Wide VDD Range Allows Small Bias Capacitor

Clamped Gate-Drive Output for MOSFET

Overvoltage, Low-Line, and Overcurrent

Protection Functions

•

Programmable Cable Compensation

(UCC28710, UCC28714 and UCC28715)

An internal 700-V start-up switch, dynamically-

controlled operating states and a tailored modulation

profile support ultra-low standby power without

sacrificing start-up time or output transient response.

NTC Resistor Interface (UCC28711, UCC28712

and UCC28713) with Fixed Cable

Compensation Options

Control algorithms in the UCC28710 family allow

operating efficiencies to meet or exceed applicable

standards. The output drive interfaces to a MOSFET

power switch. Discontinuous conduction mode (DCM)

with valley switching reduces switching losses.

Modulation of switching frequency and primary

current peak amplitude (FM and AM) keeps the

conversion efficiency high across the entire load and

line ranges.

•

SOIC-7 Package

SIMPLIFIED APPLICATION

V_OUT

–

V_AC

The controllers have a maximum switching frequency

of 100 kHz and always maintain control of the peak-

primary current in the transformer. Protection features

help keep primary and secondary component

stresses in check. The UCC28710, UCC28714 and

UCC28715 allow the cable compensation to be

programmed. The UCC28711, UCC28712 and

UCC28713 devices allow remote temperature

sensing using a negative temperature coefficient

(NTC) resistor while providing fixed cable-

compensation levels.

UCC28710

V_AUX

VDD

DRV

CBC

GND

UDG-12200

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

12 3 4 5 6 7...30

中文翻译

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UCC28712DR 替代型号

型号	品牌	替代类型	描述	数据表
UCC28712D	TI	类似代替	具有 PSR、谷底开关、NTC 选项和 150mV 电缆补偿功能的恒压、恒流 PWM \|

与UCC28712DR相关器件

型号	品牌	获取价格	描述	数据表
UCC28713	TI	获取价格	Constant-Voltage, Constant-Current Controller With Primary-Side Regulation
UCC28713D	TI	获取价格	具有 PSR、谷底开关、NTC 选项和 300mV 电缆补偿功能的恒压、恒流 PWM \|
UCC28713DR	TI	获取价格	具有 PSR、谷底开关、NTC 选项和 300mV 电缆补偿功能的恒压、恒流 PWM \|
UCC28714	TI	获取价格	Constant-Voltage, Constant-Current Controller With Primary-Side Regulation
UCC28715	TI	获取价格	Constant-Voltage, Constant-Current Controller With Primary-Side Regulation
UCC28720	TI	获取价格	Constant-Voltage, Constant-Current Controller With Primary-Side Regulation
UCC28720D	TI	获取价格	Constant-Voltage, Constant-Current Controller With Primary-Side Regulation
UCC28720DR	TI	获取价格	Constant-Voltage, Constant-Current Controller With Primary-Side Regulation
UCC28722	TI	获取价格	具有初级侧调节功能、适用于双极性功率器件的低成本 CVCC 反激式控制器
UCC28722DBVR	TI	获取价格	具有初级侧调节功能、适用于双极性功率器件的低成本 CVCC 反激式控制器 \| DBV \|

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