位置:UCC2808APWTR-2.A > UCC2808APWTR-2.A详情

UCC2808APWTR-2.A中文资料

厂家型号

UCC2808APWTR-2.A

文件大小

427.35Kbytes

页面数量

21

功能描述

UCCx808A Low-Power Current-Mode Push-Pull PWM

数据手册

下载地址一下载地址二到原厂下载

生产厂商

TI2

UCC2808APWTR-2.A数据手册规格书PDF详情

1 Features

1• Dual-Output Drive Stages in Push-Pull

Configuration

• Current-Sense Discharge Transistor to Improve

Dynamic Response

• 130-μA Typical Starting Current

• 1-mA Typical Run Current

• Operation to 1 MHz

• Internal Soft Start

• On-Chip Error Amplifier With 2-MHz Gain

Bandwidth Product

• On-Chip VDD Clamping

• Output Drive Stages Capable of 500-mA Peak-

Source Current, 1-A Peak-Sink Current

2 Applications

• High-Efficiency Switch-Mode Power Supplies

• Telecom DC-to-DC Converters

• Point-of-Load Power Modules

• Low-Cost Push-Pull and Half-Bridge Applications

3 Description

The UCCx808A devices are a family of BiCMOS

push-pull, high-speed, low-power, pulse-width

modulators. The UCCx808A contains all of the control

and drive circuitry required for off-line or DC-to-DC

fixed frequency current-mode switching power

supplies with minimal external parts count.

The UCCx808A dual-output drive stages are

arranged in a push-pull configuration. Both outputs

switch at half the oscillator frequency using a toggle

flip-flop. The dead time between the two outputs is

typically 60 ns to 200 ns depending on the values of

the timing capacitor and resistors, thus limiting each

output stage duty cycle to less than 50%.

The UCCx808A family offers a variety of package

options, temperature range options, and choice of

undervoltage lockout levels. The family has UVLO

thresholds and hysteresis options for off-line and

battery-powered systems.

The UCCx808A is an enhanced version of the

UCC3808 family. The significant difference is that the

A versions feature an internal discharge transistor

from the CS pin to ground, which is activated each

clock cycle during the oscillator dead time. The

feature discharges any filter capacitance on the CS

pin during each cycle and helps minimize filter

capacitor values and current sense delay.

更新时间:2025-10-13 11:04:00
供应商 型号 品牌 批号 封装 库存 备注 价格
TI
11+
TSSOP8
8000
全新原装,绝对正品现货供应
TI/BB
24+
MSOP-8
5989
公司原厂原装现货假一罚十!特价出售!强势库存!
TI
24+
TSSOP8
4737
TI
25+
4500
百分百原装正品 真实公司现货库存 本公司只做原装 可
TexasInstruments
18+
ICREGCTRLRISOPWMCM8-TSSO
6580
公司原装现货/欢迎来电咨询!
TI/BB
19+
面谈
6000
TSSOP8
TI
24+
TSSOP8
20000
全新原厂原装,进口正品现货,正规渠道可含税!!
TI
20+
TSSOP8
2960
诚信交易大量库存现货
TI/德州仪器
23+
TSSOP8
50000
全新原装正品现货,支持订货
TI
24+
TSSOP8
18560
假一赔十全新原装现货特价供应工厂客户可放款