UCC2810

更新时间： 2024-11-24 04:48:11

品牌	Logo	应用领域
德州仪器 - TI		/
页数	文件大小	规格书
14页	519K
描述
DUAL CHANNEL SYNCHRONIZED CURRENT-MODE PWM

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中文翻译

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数据手册
替代型号

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UCC2810 数据手册

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SLUS162C − FEBRUARY 1999 − REVISED NOVEMBER 2004

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ꢁꢀꢐ ꢐꢍꢌꢔ ꢕꢖ ꢑ ꢈꢍ ꢗꢘ ꢖ

FEATURES

DESCRIPTION

Single Oscillator Synchronizes Two PWMs

150-µA Startup Supply Current

2-mA Operating Supply Current

Operation to 1 MHz

The UCC3810 is a high-speed BiCMOS controller

integrating two synchronized pulse width

modulators for use in off-line and dc-to-dc power

supplies. The UCC3810 family provides perfect

synchronization between two PWMs by usin g the

same oscillator. The oscillator’s sawtooth

waveform can be used for slope compensation if

required.

Internal Soft-Start

Full-Cycle Fault Restart

Internal Leading-Edge Blanking of the

Current Sense Signal

Using a toggle flip-flop to alternate between

modulators, the UCC3810 ensures that one PWM

does not slave, interfere, or otherwise affect the

other PWM. This toggle flip- flop also ensures that

each PWM is limited to 50% maximum duty cycle,

insuring adequate off-time to reset magnetic

elements. This device contains many of the same

elements of the UC3842 current mode controller

family, combined with the enhancements of the

UCC3802. This minimizes power supply parts

count. Enhancements include leading edge

blanking of the current sense signals, full cycle

fault restart, CMOS output drivers, and outputs

which remain low even when the supply voltage is

removed.

1-A Totem Pole Outputs

75-ns Typical Response from Current Sense

to Output

1.5% Tolerance Voltage Reference

N PACKAGE

(TOP VIEW)

SYNC

VCC

REF

ENABLE2

FB2

FB1

COMP1

CS1

COMP2

11 CS2

OUT1

GND

10 OUT2

ERROR AMPLIFIER GAIN AND PHASE

PWRGND

FREQUENCY

DW PACKAGE

(TOP VIEW)

SYNC

FB1

COMP1

CS1

OUT1

GND

VCC

REF

ENABLE2

FB2

COMP2

CS2

OUT2

PWRGND

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中文翻译

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UCC2810 替代型号

型号	品牌	替代类型	描述	数据表
UCC3810	TI	功能相似	Dual Channel Synchronized Current Mode PWM

与UCC2810相关器件

型号	品牌	获取价格	描述	数据表
UCC2810_10	TI	获取价格	DUAL CHANNEL SYNCHRONIZED CURRENT-MODE PWM
UCC2810DW	TI	获取价格	DUAL CHANNEL SYNCHRONIZED CURRENT-MODE PWM
UCC2810DW	ROCHESTER	获取价格	1A DUAL SWITCHING CONTROLLER, 1100kHz SWITCHING FREQ-MAX, PDSO16, SOIC-16
UCC2810DWG4	TI	获取价格	温度范围为 -40°C 至 85°C 的双通道同步电流模式 PWM \| DW \| 16 \|
UCC2810DWR	TI	获取价格	1A DUAL SWITCHING CONTROLLER, 1100kHz SWITCHING FREQ-MAX, PDSO16, SOIC-16
UCC2810DWTR	TI	获取价格	DUAL CHANNEL SYNCHRONIZED CURRENT-MODE PWM
UCC2810DWTRG4	TI	获取价格	温度范围为 -40°C 至 85°C 的双通道同步电流模式 PWM \| DW \| 16 \|
UCC2810J	TI	获取价格	1A DUAL SWITCHING CONTROLLER, 1000kHz SWITCHING FREQ-MAX, CDIP16, CERAMIC, DIP-16
UCC2810N	ROCHESTER	获取价格	1A DUAL SWITCHING CONTROLLER, 1100kHz SWITCHING FREQ-MAX, PDIP16, PLASTIC, DIP-16
UCC2810N	TI	获取价格	DUAL CHANNEL SYNCHRONIZED CURRENT-MODE PWM

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