UC3842G-S08-T datasheet(5/8 Pages) UTC

No. de pieza	UC3842G-S08-T

Descripción Electrónicos	HIGH PERFORMANCE CURRENT MODE CONTROLLER

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Fabricante Electrónico	UTC [Unisonic Technologies]

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5 / 8 page

UC3842G

LINEAR INTEGRATED CIRCUIT

UNISONICTECHNOLOGIESCO.,LTD

5 of 8

www.unisonic.com.tw

QW-R103-036,A

ELECTRICAL CHARACTERISTICS (Cont.)

PARAMETER

SYMBOL

TEST CONDITION

MIN

TYP MAX UNIT

OUTPUT SECTION

Output Voltage With UVLO Active

VOL(UVLO) VCC=6V,ISINK=1mA

0.8

1.1

V

ISINK=20mA

0.1

0.4

V

VOL

ISINK=200mA

1.6

2.2

V

ISOURCE=20mA

13

14.5

V

Output Voltage

VOH

ISOURCE=200mA

12

14.6

V

tR

CL=1.0nF(Note1)

100

150

Output Voltage Rise and Fall time

tF

CL=1.0nF(Note1)

100

150

nS

UNDER VOLTAGE LOCKOUT SECTION

Startup Threshold

VTH(STAR-UP)

13.5

15

16.5

V

Min Operating Voltage

VOPR(MIN) After Turn-ON

8.5

10

11.5

V

PWM SECTION

Max Duty Cycle

DMAX

92

94

%

Minimum Duty Cycle

DMIN

0

%

TOTAL DEVICE

Power Supply Zener Voltage

VZ

ICC=25mA

30

39

V

Power Operating Supply Current

ICC

Note2

7

10

mA

Startup Current

ISTART-UP VCC=14V,UVLO Active

150

300

µA

Note: 1.These parameters, although guaranteed, are not 100% tested in production.

2.Parameters measured at trip point of latch with VFB=0.

3.Gain defined as: A=ΔVCOMP/ΔVCS; 0≤VCS≤0.8V

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