UC3842GP-S08-R datasheet(4/7 Pages) UTC

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UC3842G

LINEAR INTEGRATED CIRCUIT

UNISONIC TECHNOLOGIES CO., LTD

4 of 7

www.unisonic.com.tw

QW-R103-036.E



ELECT RI CAL CH ARACT ERI ST I CS (Cont .)

PARAMETER

SYMBOL

TEST CONDITION

MIN

TYP

MAX UNIT

OUTPUT SECTION

Output Voltage With UVLO Active

VOL(UVLO)

VCC=6V,ISINK=0.1mA;

VCC=7.5V,ISINK=1mA

0.8

1.1

ISINK=20mA

0.1

0.4

VOL

ISINK=200mA

1.6

2.2

ISOURCE=20mA

14.5

Output Voltage

VOH

ISOURCE=200mA

14.6

CL=1.0nF (Note 1)

100

150

Output Voltage Rise and Fall time

CL=1.0nF (Note 1)

100

150

UNDER VOLTAGE LOCKOUT SECTION

Startup Threshold

VTH(STAR-UP)

13.5

16.5

Min Operating Voltage

VOPR(MIN) After Turn-ON

8.5

11.5

PWM SECTION

Max Duty Cycle

DMAX

Minimum Duty Cycle

DMIN

TOTAL DEVICE

Power Supply Zener Voltage

ICC=25mA

Power Operating Supply Current

ICC

Note 2

Startup Current

ISTART-UP

VCC=14V, UVLO Active

μA

Notes: 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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