UC3842G Просмотр технического описания (PDF) - Unisonic Technologies

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UC3842G

HIGH PERFORMANCE CURRENT MODE CONTROLLER

Unisonic Technologies 

UC3842G

LINEAR INTEGRATED CIRCUIT

„ ELECTRICAL CHARACTERISTICS (Cont.)

PARAMETER

SYMBOL

TEST CONDITION

OUTPUT SECTION

Output Voltage With UVLO Active

VOL(UVLO)

VCC=6V,ISINK=0.1mA;

VCC=7.5V,ISINK=1mA

Output Voltage

VOL

ISINK=20mA

ISINK=200mA

VOH

ISOURCE=20mA

ISOURCE=200mA

Output Voltage Rise and Fall time

tR

CL=1.0nF(Note1)

tF

CL=1.0nF(Note1)

UNDER VOLTAGE LOCKOUT SECTION

Startup Threshold

VTH(STAR-UP)

Min Operating Voltage

VOPR(MIN) After Turn-ON

PWM SECTION

Max Duty Cycle

DMAX

Minimum Duty Cycle

DMIN

TOTAL DEVICE

Power Supply Zener Voltage

VZ

ICC=25mA

Power Operating Supply Current

ICC Note2

Startup Current

ISTART-UP VCC=14V,UVLO Active

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

MIN TYP MAX UNIT

0.8 1.1 V

0.1 0.4 V

1.6 2.2 V

13 14.5

V

12 14.6

V

100 150 nS

100 150

13.5 15 16.5 V

8.5 10 11.5 V

92 94

%

0%

30 39

V

7 10 mA

15 40 μA

UNISONIC TECHNOLOGIES CO., LTD

www.unisonic.com.tw

5 of 8

QW-R103-036.B

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