Datasheet > UCC28910_15

UCC28910_15

更新时间： 2024-11-24 01:00:31

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德州仪器 - TI		/
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描述
High-Voltage Flyback Switcher with Primary-Side Regulation and Output Current Control

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UCC28910

UCC28911

SLUS769C –JULY 2013–REVISED MARCH 2015

UCC28910, UCC28911 High-Voltage Flyback Switcher

with Primary-Side Regulation and Output Current Control

1 Features

3 Description

The UCC28910 and UCC28911 are high-voltage

•

Constant-Voltage (CV) and Constant-Current (CC)

Output Regulation Without Optical-Coupler

flyback switchers that provide output voltage and

current regulation without the use of an optical

coupler. Both devices incorporate a 700-V power FET

and a controller that process operating information

from the flyback auxiliary winding and power FET to

provide a precise output voltage and current control.

The integrated high-voltage current source for startup

that is switched off during device operation, and the

controller current consumption is dynamically

adjusted with load. Both enable the very low stand-by

power consumption.

•

±5% Output Voltage Regulation Accuracy

±5% Output Current Regulation With AC Line and

Primary Inductance Tolerance Compensation

•

700-V Start-Up and Smart Power Management

Enables <30-mW Standby Power

115-kHz Maximum Switching Frequency Design

for High-Power Density

Valley Switching and Frequency Dithering to Ease

EMI Compliance

Control algorithms in the UCC28910 and UCC28911,

combining switching frequency and peak primary

current modulation, allow operating efficiencies to

meet or exceed applicable standards. Discontinuous

conduction mode (DCM) with valley switching is used

to reduce switching losses. Built-in protection features

help to keep secondary and primary component

stress levels in check across the operating range.

The frequency jitter helps to reduce EMI filter cost.

•

Thermal Shut Down

Low Line and Output Over-Voltage Protection

2 Applications

•

Home and Building Automation

Power Metering Bias

Bias Power for Smoke Alarm, Fire Alarm and

Thermostat

Device Information

•

Wall Adapters, Chargers for Mobile Phones

Smart plug, IoT, MCU and WiFi Power

Aux power for TV, Server, White Goods

LED Lighting

PART NUMBER

UCC28910

PACKAGE

SOIC-7 (7)

BODY SIZE (NOM)

5.00 mm x 6.20 mm

UCC28911

4 Simplified Schematic

Typical Target Output V-I Characteristic

UCC2891x

DRAIN

±5%

GND

IPK

VDD

USB Specs. 1.1

Typical Application

0.25 0.5 0.75

1.25 1.5

Output Current (A)

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.

12 3 4 5 6 7...53

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与UCC28910_15相关器件

型号	品牌	获取价格	描述	数据表
UCC28910D	TI	获取价格	High-Voltage Flyback Switcher with Primary-Side Regulation and Output Current Control
UCC28910DR	TI	获取价格	High-Voltage Flyback Switcher with Primary-Side Regulation and Output Current Control
UCC28911	TI	获取价格	High-Voltage Flyback Switcher with Primary-Side Regulation and Output Current Control
UCC28911D	TI	获取价格	High-Voltage Flyback Switcher with Primary-Side Regulation and Output Current Control
UCC28911DR	TI	获取价格	High-Voltage Flyback Switcher with Primary-Side Regulation and Output Current Control
UCC2891D	TI	获取价格	CURRENT MODE ACTIVE CLAMP PWM CONTROLLER
UCC2891DG4	TI	获取价格	CURRENT-MODE ACTIVE CLAMP PWM CONTROLLER
UCC2891DR	TI	获取价格	CURRENT-MODE ACTIVE CLAMP PWM CONTROLLER
UCC2891DRG4	TI	获取价格	CURRENT-MODE ACTIVE CLAMP PWM CONTROLLER
UCC2891PW	TI	获取价格	CURRENT MODE ACTIVE CLAMP PWM CONTROLLER

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