Datasheet > UCC25230

UCC25230

更新时间： 2024-11-10 08:26:03

品牌	Logo	应用领域
德州仪器 - TI		转换器开关
页数	文件大小	规格书
21页	858K
描述
12-V to 100-V Input, 0.2-A Output Switching Converter

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UCC25230 数据手册

UCC25230

www.ti.com

SLUSAQ6A – NOVEMBER 2011

12-V to 100-V Input, 0.2-A Output Switching Converter

Check for Samples: UCC25230

FEATURES

APPLICATIONS

•

Highly Integrated Converter Operating as a

Buck, or Isolated Forward-Flyback, Flybuck™

•

High Density Isolated Standby Bias Supplies

DC-to-DC Converters

•

Wide Operating Input Voltage Range from 12 V

to 100 V, 105-V Surge.

DESCRIPTION

The UCC25230 is a highly integrated PWM converter

operating as an isolated forward flyback. It has

high-side and low-side power switches integrated and

the control circuit with all key converter functions

included. The power stage requires only one- or

multiple winding coupled inductor and output

capacitors for the complete solution. Voltage-mode

feed-forward control with external compensation

allows optimal output filter selection over wide input

voltage range. The UCC25230 has fixed frequency

set internally at 380 kHz. It also includes input voltage

UVLO and OVLO comparators with hysteresis and

input-good, open-collector output signal which can be

used to enable PWM controllers.

•

Up to 0.2-A Output Current

9-V Always Available VDD Output with up to

2-mA Current Capability

•

Thermally Enhanced 4-mm x 4-mm

SON-8/S-PVSON-N8 (DRM) Package

Internally Set Fixed 380-kHz Switching

Frequency

•

Internal 2-ms Duration Soft Start

Voltage Mode Control with Input Feed Forward

Allows Optimal Output Filter Design

•

2% Accuracy Internal 2.5-V Reference

V_DDUVLO

UCC25230 is available in a thermally enhanced 8-pin

SON package with PowerPad™ serving as a ground

pin.

Cycle-by-Cycle Current Limit with Frequency

Fold Back for Initial Start up Under High

Capacitive Loads

Other features include internal soft start and

cycle-by-cycle current protection. Measured efficiency

of isolated converter over input voltage and output

current ranges are shown in Figure 2.

•

Input UVLO and OVLO with Input Good Signal

Isolated Buck Converter

100 V

VDD

VIN

8 V

100 mA

BOOT

UV/OV

VIN_G

PHASE

COMP

8 V

100 mA

GND PAD

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.

PowerPad, Flybuck are trademarks of Texas Instruments.

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...21

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与UCC25230相关器件

型号	品牌	获取价格	描述	数据表
UCC25230_14	TI	获取价格	12-V to 100-V Input, 0.2-A Output Switching Converter
UCC25230DRMR	TI	获取价格	12-V to 100-V Input, 0.2-A Output Switching Converter
UCC25230DRMT	TI	获取价格	12-V to 100-V Input, 0.2-A Output Switching Converter
UCC2540	TI	获取价格	HIGH EFFICIENCY SECONDARY SIDE SYNCHRONOUS BUCK PWM CONTROLLER
UCC2540_16	TI	获取价格	SYNCHRONOUS BUCK PWM CONTROLLER
UCC2540PWP	TI	获取价格	HIGH EFFICIENCY SECONDARY SIDE SYNCHRONOUS BUCK PWM CONTROLLER
UCC2540PWPG4	TI	获取价格	3.5A SWITCHING CONTROLLER, 1000kHz SWITCHING FREQ-MAX, PDSO20, GREEN, PLASTIC, HTSSOP-20
UCC2540PWPR	TI	获取价格	High Efficiency Secondary Side Synchronous Buck PWM Controller 20-HTSSOP -40 to 85
UCC2540PWPRG4	TI	获取价格	3.5A SWITCHING CONTROLLER, 1000kHz SWITCHING FREQ-MAX, PDSO20, GREEN, PLASTIC, HTSSOP-20
UCC2541	TI	获取价格	HIGH-EFFICIENCY SYNCHRONOUS BUCK PWM CONTROLLER

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