UC3842BP-S08-R datasheet(8/11 Pages) UTC

部件名	UC3842BP-S08-R

功能描述	HIGH PERFORMANCE CURRENT MODE CONTROLLERS

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制造商	UTC [Unisonic Technologies]

网页	http://www.utc-ic.com

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8 / 11 page

UC3842B/3843B

LINEAR INTEGRATED CIRCUIT

UNISONICTECHNOLOGIESCO.,LTD

8 of 11

www.unisonic.com.tw

QW-R103-012.F



APPLICATION INFORMATION(Cont.)

Shutdown Techniques

8

3

(Deadtime vs CT RT > 5kΩ)

SHUTDOWN

330Ω

500Ω

TO CURRENT

SENSE-RESISTOR

1KΩ

VREF

ISENSE

SHUTDOWN

1

COMP

The UTC UC3842B’s shutdown can be accomplished by two ways: raise Pin 3 above 1V; or pull Pin 1 below a

voltage two diode drops above ground. Either method can cause the PWM comparator’s output to be high. Because

the PWM latch is reset dominant, the output will remain low until the next clock cycle after the shutdown condition at

Pins 1 and/or 3 is removed.

Slope Compensation

类似零件编号 - UC3842BP-S08-R

制造商	部件名	数据表	功能描述
Unisonic Technologies	UC3842BP-S08-R	518Kb / 11P	HIGH PERFORMANCE CURRENT MODE CONTROLLERS
Unisonic Technologies	UC3842BP-S08-R	439Kb / 10P	HIGH PERFORMANCE CURRENT MODE CONTROLLERS

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