Datasheet > UC3800

UC3800

更新时间： 2024-12-01 01:03:23

品牌	Logo	应用领域
友顺 - UTC		/
页数	文件大小	规格书
10页	221K
描述
LOW COST POWER-SAVING MODE PWM CONTROLLER

阅读下载

中文翻译

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

UC3800 数据手册

UNISONIC TECHNOLOGIES CO., LTD

UC3800/B

Preliminary

LINEAR INTEGRATED CIRCUIT

LOW COST POWER-SAVING

MODE PWM CONTROLLER

FOR FLYBACK CONVERTERS



DESCRIPTION

The UTC UC3800/B is a high performance current mode PWM

controller ideally suited for low standby power. High voltage startup

is implemented in UTC UC3800/B, which features with short

startup time and no standby current. At no load condition, the IC

operates in power-saving mode for lower standby power,

decreasing frequency for higher conversion efficiency at light load

condition.

SOP-8

The internal slope compensation improves system stability at

high PWM duty cycle output. Leading-edge blanking on current

sense input removes the signal glitch, which offering minimal

external component count in the design. Excellent EMI

performance is achieved with UTC proprietary frequency hopping

technique (ZL201020615247.1) together with soft driver control.

Audio noise is eliminated due to switch frequency more than 20kHz

during operation.

The UTC UC3800/B has such applications as: battery charger,

power adaptor, set-top box power supplies, ink jet printers,

open-frame SMPS.



FEATURES

* UTC proprietary frequency hopping technology for Improved EMI * Fixed switch frequency 65kHz

performance.

* Gate output voltage clamped at 16V

* Low start-up current

* Cycle-by-cycle Current Limiting

* Under voltage lockout (UVLO)

* Few external components required

* Power-saving mode for high light-load and standby efficiency

* Soft Start

* Dynamic peak current limiting for constant output power

* Built-in synchronized slope compensation

* OTP,OLP,OVP, LNO-OVP, Brownout and V_DDclamp for higher

security



ORDERING INFORMATION

Ordering Number

Package

Packing

Lead Free

Halogen Free

UC3800L-S08-R

UC3800BL-S08-R

UC3800G-S08-R

UC3800BG-S08-R

SOP-8

Tape Reel

www.unisonic.com.tw

1 of 10

QW-R103-083.d

12 3 4 5 6 7...10

中文翻译

下载PDF

与UC3800相关器件

型号	品牌	获取价格	描述	数据表
UC3800_18	UTC	获取价格	LOW COST POWER-SAVING MODE PWM CONTROLLER
UC3800BG-S08-R	UTC	获取价格	LOW COST POWER-SAVING MODE PWM CONTROLLER
UC3800BL-S08-R	UTC	获取价格	LOW COST POWER-SAVING MODE PWM CONTROLLER
UC3800G-S08-R	UTC	获取价格	LOW COST POWER-SAVING MODE PWM CONTROLLER
UC3800L-S08-R	UTC	获取价格	LOW COST POWER-SAVING MODE PWM CONTROLLER
UC3801	UTC	获取价格	low cost power-saving mode pwm controller for...
UC3803X	STANLEY	获取价格	Single Color ヵ3 Flush Mount Round Shape Type
UC3804X	STANLEY	获取价格	Single Color ヵ3 Flush Mount Round Shape Type
UC3816A UC3816B	UTC	获取价格	low cost power-saving mode pwm controller for...
UC381DW	TI	获取价格	UC381DW