Datasheet > UCC28632_15

UCC28632_15

更新时间： 2024-09-21 00:50:27

品牌	Logo	应用领域
德州仪器 - TI		/
页数	文件大小	规格书
79页	3523K
描述
High-Power Flyback Controller with Primary-Side Regulation and Peak-Power Mode

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UCC28630

UCC28631

UCC28632, UCC28633

SLUSBW3C –MARCH 2014–REVISED MARCH 2015

UCC28630, UCC28631, UCC28632 and UCC28633, High-Power Flyback Controller

with Primary-Side Regulation and Peak-Power Mode

1 Features

3 Description

The UCC2863x targets high-power, primary-side

regulated flyback converters. The powerful gate driver

and ability to operate in both CCM and DCM make

the device suitable for applications with a wide power

range. The peak power mode allows transient peak

power delivery up to 200% of nominal rating, with

only a 25% peak current increase, maximizing

transformer utilization.

•

High-Power, Primary-Side Regulation for Output

Voltage and Current, No Opto-Coupler Required

•

Continuous Conduction Mode (CCM) and

Discontinuous Conduction Mode (DCM) Operation

•

Built-In 700-V Start-Up Current Source

Active X-Capacitor Discharge Function

(UCC28630 and UCC28633)

The transformer bias winding is used to sense output

voltage for regulation, and for low-loss input voltage

sensing. Advanced sampling and processing

techniques allow CCM operation, and deliver

excellent output voltage regulation performance for

opto-coupler-less designs at power levels of 100 W

and above.

•

Adjustable Constant-Current (CC) Mode Limiting

(except for UCC28630)

•

High Gate Drive Current 1-A Source and 2-A Sink

Low Power Modes for <30-mW System Standby

Best-In-Class Light Load (10%) Efficiency >85%

for 65-W Nominal Power Design

•

Peak-Power Mode for Transient Overload

Shutdown Pin Interface for External NTC

A high-voltage current source enables fast and

efficient start-up. Advanced light-load modes are

deployed (including switching frequency modulation

and device sleep modes) to reduce both controller

and system power consumption at no load and light

load. These modes enable potential system designs

to meet 30-mW no-load power for power designs up

to 30 W nominal, 60 W peak.

Protections: Overvoltage, Overcurrent, Over-

Temperature, Overload Timer (UCC28630), AC

Line UV, Brownout and Pin Protections

•

Frequency Dither to Ease EMI Compliance

(except the UCC28632)

The device has been designed for ease-of-use and

incorporates many features to enable a wide range of

designs. Extensive protection features are included to

simplify system design.

2 Applications

•

AC-DC Adapters for Notebook, Game Consoles,

Printers

Open Frame SMPS for Industrial, Printer, White

Goods, LCD Monitors

Device Information

PART NUMBER

UCC28630

UCC28631

UCC28632

UCC28633

PACKAGE

BODY SIZE

Energy Efficient AC-DC Supplies for Nominal

Power 10-W to 65-W, (with up to 200% transient

peak power)

SOIC (7)

4.90 mm x 3.90 mm

4 Simplified Schematic

V_OUT

Typical Application Measured Regulation

V_AC

EMC

Filter

20.5

19.5

+5% Limit

1% Typical

115V/60 Hz

18.5

VSENSE

230V/50 Hz

UCC28630

±5% Limit

t^o

VDD

GND

DRV

Output Power (W)

C001

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...79

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与UCC28632_15相关器件

型号	品牌	获取价格	描述	数据表
UCC28632D	TI	获取价格	High-Power Flyback Controller with Primary-Side Regulation and Peak-Power Mode
UCC28632DR	TI	获取价格	High-Power Flyback Controller with Primary-Side Regulation and Peak-Power Mode
UCC28633	TI	获取价格	High-Power Flyback Controller with Primary-Side Regulation and Peak-Power Mode
UCC28633D	TI	获取价格	High-Power Flyback Controller with Primary-Side Regulation and Peak-Power Mode
UCC28633DR	TI	获取价格	High-Power Flyback Controller with Primary-Side Regulation and Peak-Power Mode
UCC28634	TI	获取价格	具有 PSR、峰值功率模式、可调节 CC 限制和频率抖动功能的高功率反激式控制器
UCC28634D	TI	获取价格	具有 PSR、峰值功率模式、可调节 CC 限制和频率抖动功能的高功率反激式控制器 \| D
UCC28634DR	TI	获取价格	具有 PSR、峰值功率模式、可调节 CC 限制和频率抖动功能的高功率反激式控制器 \| D
UCC28700	TI	获取价格	Constant-Voltage, Constant-Current Controller With Primary-Side Regulation
UCC28700_14	TI	获取价格	Constant-Voltage, Constant-Current Controller With Primary-Side Regulation

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