Datasheet > UCC2810_10

UCC2810_10

更新时间： 2024-09-16 12:27:27

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德州仪器 - TI		/
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DUAL CHANNEL SYNCHRONIZED CURRENT-MODE PWM

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UCC2810_10 数据手册

UCC2810

UCC3810

www.ti.com

SLUS162D–FEBRUARY 1999–REVISED FEBRUARY 2007

DUAL CHANNEL SYNCHRONIZED CURRENT-MODE PWM

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

Using

toggle flip-flop to alternate between

Internal Leading-Edge Blanking of the Current

Sense Signal

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

COMP2

CS2

FB1

COMP1

CS1

OUT1

GND

10 OUT2

PWRGND

PW PACKAGE

(TOP VIEW)

SYNC

FB1

COMP1

CS1

OUT1

GND

VCC

REF

ENABLE2

FB2

COMP2

CS2

OUT2

PWRGND

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.

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...12

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与UCC2810_10相关器件

型号	品牌	获取价格	描述	数据表
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
UCC2810NG4	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 \| N \| 16 \|

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