UCC2806

更新时间： 2024-09-14 22:41:47

品牌	Logo	应用领域
德州仪器 - TI		控制器
页数	文件大小	规格书
7页	122K
描述
Low Power, Dual Output, Current Mode PWM Controller

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替代型号

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UCC2806 数据手册

application

INFO

UCC1806

UCC2806

UCC3806

available

Low Power, Dual Output, Current Mode PWM Controller

FEATURES

DESCRIPTION

• BiCMOS Version of UC1846 Families The UCC1806 family of BiCMOS PWM controllers offers exceptionally im-

proved performance with a familiar architecture. With the same block dia-

gram and pinout of the popular UC1846 series, the UCC1806 line features

• 1.4mA Maximum Operating Current

increased switching frequency capability while greatly reducing the bias

current used within the device. With a typical startup current of 50µA and a

well defined voltage threshold for turn-on, these devices are favored for ap-

plications ranging from off-line power supplies to battery operated portable

equipment. Dual high current, FET driving outputs and a fast current sense

loop further enhance device versatility.

• 100µA Maximum Startup Current

• 1.0A Peak Output Current

• 125nsec Circuit Delay

• Easier Parallelability

• Improved Benefits of Current Mode

Control

All the benefits of current mode control including simpler loop closing, volt-

age feed-forward, parallelability with current sharing, pulse-by-pulse current

limiting, and push-pull symmetry correction are readily achievable with the

UCC1806 series.

(continued)

BLOCK DIAGRAM

SYNC 10

13 VC

4.4V

1.5V

11 AOUT

OSC

CS–

CS+

14 BOUT

12 GND

COMP

SHUTDOWN

LOCK OUT

–

120µA

0.5V

CURLIM

INV

0.35V

COMP

16 SHUTDOWN

7.0V

7.5V

1.00V

200k

200µA

VIN 15

CURRENT LIMIT

RESTART

UNDER VOLTAGE LOCKOUT

15V

4.25V

VREF

5.1V

REFERENCE

REGULATOR

REFERENCE LOW

UDG-99035

Pin numbers refer to DIL-16 package.

SLUS272A - FEBRUARY 2000

12 3 4 5 6 7

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UCC2806 替代型号

型号	品牌	替代类型	描述	数据表
UCC3806	TI	功能相似	Low Power, Dual Output, Current Mode PWM Controller
UCC1806	TI	功能相似	LOW-POWER, DUAL-OUTPUT, CURRENT-MODE PWM CONTROLLER

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